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REVIEWED BLD2021-0797+Manufacturer_Specifications_and_Installation_Instructions+6.10.2021_10.22.56_AM+2242464�rrier BLD2021-0797 WeatherMaster® 48HC07-12 Single Package Rooftop Gas Heat/Electric Cooling Unit with Puron® (R-410A) Refrigerant BY CITY OF EDMONDS Installation Instructions 9FMVED Jun 10 2021 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT 48HC units for installation in the United States contain use of Carrier's Staged Air Volume (SAVTm) 2-speed indoor fan control system. This complies with the U.S. Department of Energy (DOE) efficiency standard of 2018. 48HC units for installation outside the United States may or may not contain use of the SAV 2-speed indoor fan control system as they are not required to comply with the U.S. Department of Energy (DOE) efficiency standard of 2018. For specific details on operation of the Carrier SAV 2-speed indoor fan system refer to the Variable Frequency Drive (VFD) Factory -Installed Option 2-Speed Motor Control Installation, Setup, and Troubleshooting manual. CONTENTS Page SAFETY CONSIDERATIONS ...................... 1 MODEL NUMBER NOMENCLATURE AND DIMENSIONS ..................................... 4 Rated Indoor Airflow ............................. 4 Pre -Installation ................................... 4 INSTALLATION ................................. 10 Jobsite Survey .................................. 10 Step 1 — Plan for Unit Location ................. 10 • ROOF MOUNT Step 2 — Plan for Sequence of Unit Installation .................................. 11 • CURB -MOUNTED INSTALLATION • PAD -MOUNTED INSTALLATION • FRAME -MOUNTED INSTALLATION Step 3 — Inspect Unit ........................... 11 Step 4 — Provide Unit Support .................. 11 • ROOF CURB MOUNT • SLAB MOUNT (HORIZONTAL UNITS ONLY) • ALTERNATE UNIT SUPPORT Step 5 — Field Fabricate Ductwork .............. 13 Step 6 — Rig and Place Unit .................... 13 • POSITIONING ON CURB Step 7 — Convert to Horizontal and Connect Ductwork (when required) .......... 15 Step 8 — Install Outside Air Hood .............. 15 • ECONOMIZER AND TWO -POSITION DAMPER HOOD PACKAGE REMOVAL AND SETUP • ECONOMIZER HOOD AND TWO -POSITION HOOD ASSEMBLY Step 9 — Install Flue Hood ...................... 17 Step 10 — Install Gas Piping ................... 17 • FACTORY OPTION THRU-BASE CONNECTIONS (GAS CONNECTIONS) Step 11 — Install External Condensate Trap andLine.....................................19 Step 12 — Make Electrical Connections ......... 20 • FIELD POWER SUPPLY • UNITS WITH FACTORY -INSTALLED NON -FUSED DISCONNECT OR HACR • UNITS WITHOUT FACTORY -INSTALLED NON - FUSED DISCONNECT OR HACR CIRCUIT BREAKER • ALL UNITS • CONVENIENCE OUTLETS • HACR CIRCUIT BREAKER Page • FACTORY -OPTION THRU-BASED CONNECTIONS (ELECTRICAL CONNECTIONS) • UNITS WITHOUT THRU-BASE CONNECTIONS • FIELD CONTROL WIRING • THERMOSTAT • HUMIDI-MIZER® SYSTEM CONTROL CONNECTIONS • TYPICAL CONTROL WIRING DIAGRAMS • ECONOMISER° X (FACTORY OPTION) Smoke Detectors................................49 • COMPLETING INSTALLATION OF RETURN AIR SMOKE SENSOR • ADDITIONAL APPLICATION DATA Staged Air Volume (SAVTM) with Variable Frequency Drive (Factory Option) ............ 50 Comforti-ink Control (Factory Option) .......... 50 PremierLinkTM Controller (Factory Option) ...... 50 RTU Open Controller ........................... 50 Controller Options .............................. 50 • LOW AMBIENT CONTROL (FACTORY OPTION) Step 13 — Adjust Factory -Installed Options..... 51 • SMOKE DETECTORS • ECONOMISER® IV OCCUPANCY SWITCH Step 14 — Install Accessories ................... 51 Step 15 — Check Belt Tension .................. 51 Pre -Start and Start -Up ........................ 52 START-UP CHECKLIST ...................... CL-1 SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory -authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloths for brazing operations and have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and appropriate national electrical codes (in USA, ANSI/NFPA70, National Electrical Code (NEC); in Canada, CSA C22.1) for special requirements. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480221-01 Printed in U.S.A. Form 48HC-7-12-06SI Pg 1 1-19 Replaces: 48HC-7-12-05SI It is important to recognize safety information. This is the safety - alert symbol 6. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, CAUTION, and NOTE. These words are used with the safety -alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices, which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation. A� WARNING If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, per- sonal injury or loss of life. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. • If you cannot reach your gas supplier, call the fire department. Installation and service must be performed by a qualified installer, service agency or the gas supplier. A�AVERTISSEMENT RISQUE D'INCENDIE OU D'EXPLOSION Si les consignee de securite ne sont pas suivies a la lettre, cela peut entramer la mort, de graves blessures ou des dommages materiels. Ne pas entreposer ni utiliser d'essence ni autres vapeurs ou liquides inflammables a proximite de cet appareil ou de tout autre appareil. QUE FAIRE SI UNE ODEUR DE GAZ EST DATECTAE • Ne mettre en marche aucun appareil. • Ne toucher aucun interrupteur electrique; ne pas utiliser de telephone dans le batiment. • Quitter le batiment immediatement. • Appeler immediatement le foumisseur de gaz en utilisant le telephone d'un voisin. Suivre les instructions du fournisseur de gaz. • Si le fournisseur de gaz nest pas accessible, appeler le service d'incendie. L'installation et 1'entretien doivent etre effectues par un installateur ou une entreprise d'entretien qualifie, ou le fournisseur de gaz. ©WARNING CARBON -MONOXIDE POISONING Failure to follow instructions could result in severe personar injury or death due to carbon -monoxide poisoninJLffic$JD-2 2' bustion products infiltrate into the building. CITY of EDIVIC Nos Check that all openings in the outside wall arouwIi}P�tT,E RVI( (and air intake) pipe(s) are sealed to prevent infiltra ion of combustion products into the building. Check that furnace vent (and air intake) terminal(s) are not obstructed in any way during all seasons. &AVERTISSEMENT RISQUE D'INTOXICATION AU MONOXYDE DE CARBONE Si ces directives ne sont pas suivies, cela peut entrainer des blessures graves ou une intoxication au monoxyde de Carbone pouvant causer la mort, si des produits de combustion s'infiltrent dans le batiment. Verifier que toutes les ouvertures pratiquees dans le mur exterieur autour du ou des tuyaux d'event (et de la prise d'air) sont scellees de mame're a empecher Finfiltration de produits de combustion dans le batiment. Veiller a ce que la ou les sorties de 1'event de Pappareil de chauffage (et la prise d'air) ne soient, en aucune fagon, obstruees, quelle que soft la saison. WARNING FIRE, EXPLOSION HAZARD Failure to follow this warning could result in personal inju- ry or death. Disconnect gas piping from unit when leak testing at pres- sure greater than 0.5 psig (3450 Pa). Pressures greater than 0.5 psig (3450 Pa) will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than 0.5 psig (3450 Pa), it must be replaced before use. When pressure testing field -supplied gas piping at pressures of 0.5 psig (3450 Pa) or less, a unit connected to such piping must be isolated by closing the manual gas valve. CAUTION Ensure clearances are in accordance with local installation codes, the requirements of the gas supplier and the manu- facturer's installation Instructions. zhATTENTION Assurez-vous que les degagements sont conform7aauxcodes d'installation locaux, aux exigences du foumi gaz et aux instructions d'installation du fabricant. 2 &WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could cause personal injury or death. Before performing service or maintenance operations on unit, always turn off main power switch to unit and install lock(s) and lockout tag(s). Unit may have more than one power switch. & WARNING UNIT OPERATION AND SAFETY HAZARD Failure to follow this warning could cause personal injury, death and/or equipment damage. Puron (R-410A) refrigerant systems operate at higher pres- sures than standard R-22 systems. Do not use R-22 service equipment or components on Puron refrigerant equipment. &WARNING PERSONAL INJURY AND ENVIRONMENTAL HAZARD Failure to follow this warning could cause personal injury or death. Relieve pressure and recover all refrigerant before system repair or final unit disposal. Wear safety glasses and gloves when handling refrigerants. Keep torches and other ignition sources away from refriger- ants and oils. A WARNING CUT HAZARD Failure to follow this caution may result in personal injury. Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts and servicing air conditioning equipment. &WARNING FIRE HAZARD Failure to follow this warning could result in personal inju- ry, death, and/or property damage. Inlet pressure tap set screw must be tightened and 1/8-in. NPT pipe plug must be installed to prevent gas leaks. GAS VALVE INLET PRESSUR TAP SET SCREE & WARNING FIRE HAZARD R E C lV D Failure to follow this warning could result in persona r'6 ry, death, and/or property damage. Jun 10 201 Manifold pressure tap set screw must be tightenedi>a4IiI94MD NPT pipe plug must be installed to prevent gaP MET SERv DES MANIFOLD PRESSURE TAP SET SCREW MANIFOLD' \ / v GAS VALVE Pre -Installation MODEL NUMBER NOMENCLATURE AND DIMENSIONS See Fig. 1 for 48HC model number nomenclature. See Figures 2 and 3 for unit dimensional drawings. Figure 4 shows service clearance dimensions. Rated Indoor Airflow Table 1 lists the rated indoor airflow used for the AHRI effi- ciency rating for the units covered in this document. Table 1 — Rated Indoor Airflow MODEL NUMBER RATED INDOOR AIRFLOW (CFM) 48HC*A/B/F07 2400 48HC*D/E/G07 2400 48HC*D/E/G08 3000 48HC*D/E/G09 3000 48HC*D/E/11 3000 48HC*D/E/G12 3000 Complete the following checks before installation. 1. Consult local building codes and the NEC.LNational Elec- trical Code) ANSI/NFPA 70 for specKEGEWED requirements. 2. Determine unit location (from project plans) odiactGnM21 location. CITY OF EDMONDS Check for possible overhead obstructions which may LOP ME�NT �RVICEs with unit lifting or rigging. 4 Position: Example: v©©v©0000mmmmmmmmm Unit Heat Type 48 - Gas Heat Packaged Rooftop Model Series - WeatherMaster® HC - High Efficiency Heat Options D = Low Gas Heat E = Medium Gas Heat F = High Gas Heat S = Low Heat w/ Stainless Steel Exchanger R = Medium Heat w/ Stainless Steel Exchanger T = High Heat w/ Stainless Steel Exchanger (Low NO, models include — Stainless Steel FIX) Refrig. Systems Options A = Single stage cooling models B = Single stage cooling models with Humidi-MiZer® D = Two stage cooling models E = Two stage cooling models with Humidi-MiZer F = Single stage cooling models with MotorMaster Low Ambient Controller G = Two stage cooling models with MotorMaster Low Ambient Controller Cooling Tons 07 - 6 ton 08 - 7.5 ton 09 - 8.5 ton 11 - 10 ton (12.0 EER) 12 - 10 ton (11.5 EER) Sensor Options A = None B = RA Smoke Detector C = SA Smoke Detector D = RA + SA Smoke Detector E = CO2 F = RA Smoke Detector and CO2 G = SA Smoke Detector and CO2 H = RA + SA Smoke Detector and CO2 Indoor Fan Options 1 = Standard Static Option - Belt Drive 2 = Medium Static Option - Belt Drive 3 = High Static Option - Belt Drive Coil Options (RTPF) (Outdoor - Indoor - Hail Guard) A = AI/Cu - AI/Cu B = Precoat AI/Cu - AI/Cu C = E-coat AI/Cu - AI/Cu D = E-coat AI/Cu - E-coat AI/Cu E = Cu/Cu - AI/Cu F = Cu/Cu - Cu/Cu M = AI/Cu -AI/Cu — Louvered Hail Guard N = Precoat AI/Cu - AI/Cu — Louvered Hail Guard P = E-coat AI/Cu - AI/Cu — Louvered Hail Guard Q = E-coat AI/Cu - E-coat AI/Cu — Louvered Hail Guard R = Cu/Cu - AI/Cu — Louvered Hail Guard S = Cu/Cu - Cu/Cu — Louvered Hail Guard Voltage 1 = 575/3/60 5 = 208-230/3/60 6 = 460/3/60 RECEIVED Factory Assigned 0 = Standard Jule 10 2021 1 = LTL CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT Electrical Options A = None B = HACR Breaker C = Non -Fused Disconnect D = Thru-The-Base Connections E = HACR and Thru-The Base Connections F = Non -Fused Disconnect and Thru-The-Base Connections G = 2-Speed Indoor Fan (VFD) Controller H = 2-Speed Fan Controller (VFD) and HACR Breaker J = 2-Speed Fan Controller (VFD) and Non -Fused Disconnect K = 2-Speed Fan Controller (VFD) and Thru-The-Base Connections L = 2-Speed Fan Controller (VFD) w/ HACR Breaker and Thru-The Base Connections M = 2-Speed Fan Controller (VFD) with Non -Fused Disconnect and Thru-The-Base Connections Service Options 0 = None 1 = Unpowered Convenience Outlet 2 = Powered Convenience Outlet 3 = Hinged Panels 4 = Hinged Panels and Unpowered Convenience Outlet 5 = Hinged Panels and Powered Convenience Outlet C = Foil Faced Insulation D = Foil Faced Insulation with Unpowered Convenience Outlet E = Foil Faced Insulation with Powered Convenience Outlet F = Foil Faced Insulation & Hinged Panels G = Foil Faced Insulation & Hinged Panels with Unpowered Convenience Outlet H = Foil Faced Insulation & Hinged Panels with Powered Convenience Outlet Intake / Exhaust Options A = None B = Temperature Economizer w/ Barometric Relief F = Enthalpy Economizer w/ Barometric Relief K = 2-Position Damper U = Low Leak Temperature Economizer w/ Barometric Relief W = Low Leak Enthalpy Economizer w/ Barometric Relief Base Unit Controls 0 = Electromechanical Controls can be used with W7212 EconoMi$er (Non -Fault Detection and Diagnostic) 1 = PremierLinkTm Controller 2 = RTU Open Multi -Protocol Controller 6 = Electro-mechanical w/ 2-speed fan and W7220 Econo controller controls. Can be used with W7220 EconoMi$er X (w/ Fault Detection & Diagnostic) D = ComfortLink Controls Design Revision A = Factory Design Revision Fig. 1 — 48HC 07-12 Model Number Nomenclature (Example) Unit Heat Type 48 - Gas Heat Packaged Rooftop Model Series - WeatherMaster® HC - High Efficiency Heat Options D = Low Gas Heat E = Medium Gas Heat F = High Gas Heat S = Low Heat w/ Stainless Steel Exchanger R = Medium Heat w/ Stainless Steel Exchanger T = High Heat w/ Stainless Steel Exchanger (Low NO, models include — Stainless Steel FIX) Refrig. Systems Options A = Single stage cooling models B = Single stage cooling models with Humidi-MiZer® D = Two stage cooling models E = Two stage cooling models with Humidi-MiZer F = Single stage cooling models with MotorMaster Low Ambient Controller G = Two stage cooling models with MotorMaster Low Ambient Controller Cooling Tons 07 - 6 ton 08 - 7.5 ton 09 - 8.5 ton 11 - 10 ton (12.0 EER) 12 - 10 ton (11.5 EER) Sensor Options A = None B = RA Smoke Detector C = SA Smoke Detector D = RA + SA Smoke Detector E = CO2 F = RA Smoke Detector and CO2 G = SA Smoke Detector and CO2 H = RA + SA Smoke Detector and CO2 Indoor Fan Options 1 = Standard Static Option - Belt Drive 2 = Medium Static Option - Belt Drive 3 = High Static Option - Belt Drive Coil Options (RTPF) (Outdoor - Indoor - Hail Guard) A = AI/Cu - AI/Cu B = Precoat AI/Cu - AI/Cu C = E-coat AI/Cu - AI/Cu D = E-coat AI/Cu - E-coat AI/Cu E = Cu/Cu - AI/Cu F = Cu/Cu - Cu/Cu M = AI/Cu -AI/Cu — Louvered Hail Guard N = Precoat AI/Cu - AI/Cu — Louvered Hail Guard P = E-coat AI/Cu - AI/Cu — Louvered Hail Guard Q = E-coat AI/Cu - E-coat AI/Cu — Louvered Hail Guard R = Cu/Cu - AI/Cu — Louvered Hail Guard S = Cu/Cu - Cu/Cu — Louvered Hail Guard Voltage 1 = 575/3/60 5 = 208-230/3/60 6 = 460/3/60 RECEIVED Factory Assigned 0 = Standard Jule 10 2021 1 = LTL CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT Electrical Options A = None B = HACR Breaker C = Non -Fused Disconnect D = Thru-The-Base Connections E = HACR and Thru-The Base Connections F = Non -Fused Disconnect and Thru-The-Base Connections G = 2-Speed Indoor Fan (VFD) Controller H = 2-Speed Fan Controller (VFD) and HACR Breaker J = 2-Speed Fan Controller (VFD) and Non -Fused Disconnect K = 2-Speed Fan Controller (VFD) and Thru-The-Base Connections L = 2-Speed Fan Controller (VFD) w/ HACR Breaker and Thru-The Base Connections M = 2-Speed Fan Controller (VFD) with Non -Fused Disconnect and Thru-The-Base Connections Service Options 0 = None 1 = Unpowered Convenience Outlet 2 = Powered Convenience Outlet 3 = Hinged Panels 4 = Hinged Panels and Unpowered Convenience Outlet 5 = Hinged Panels and Powered Convenience Outlet C = Foil Faced Insulation D = Foil Faced Insulation with Unpowered Convenience Outlet E = Foil Faced Insulation with Powered Convenience Outlet F = Foil Faced Insulation & Hinged Panels G = Foil Faced Insulation & Hinged Panels with Unpowered Convenience Outlet H = Foil Faced Insulation & Hinged Panels with Powered Convenience Outlet Intake / Exhaust Options A = None B = Temperature Economizer w/ Barometric Relief F = Enthalpy Economizer w/ Barometric Relief K = 2-Position Damper U = Low Leak Temperature Economizer w/ Barometric Relief W = Low Leak Enthalpy Economizer w/ Barometric Relief Base Unit Controls 0 = Electromechanical Controls can be used with W7212 EconoMi$er (Non -Fault Detection and Diagnostic) 1 = PremierLinkTm Controller 2 = RTU Open Multi -Protocol Controller 6 = Electro-mechanical w/ 2-speed fan and W7220 Econo controller controls. Can be used with W7220 EconoMi$er X (w/ Fault Detection & Diagnostic) D = ComfortLink Controls Design Revision A = Factory Design Revision Fig. 1 — 48HC 07-12 Model Number Nomenclature (Example) N C nF 0 7 CT �_ v C� C Q N CD N V Q to NOTES: 1, DIMENSIONS ARE IN INCHES. DIMENSIONS IN I I ARE IN MILLIMETERS. 2, & CENTER OF GRAVITY 3, y DIRECTION OF AIR FLOW FILTER ACCESS PANEL (TOOL- CONDENSER ECo IL 11 DOOR COILE ACCESS PANEL; �na>•��W4W4W4W4W4W��z��l [4691 146121 14 T— [3551 12791 BACK H 4-5/8 1116] ELECTRICAL D ISCONNECi A, LOCATION CONDENSER B, COIL G yOPTIONAL FACTORY 7-7/8 INSTALLED D [ 7091 CONVENIENCE OUTLET C 6 5/8 e • ' �' '�•o- [168] 1-114 1951 59-1/2 2-5 115101 I67 Ty LEFT CUR WID 408 [1026-3/] ECONOMIZER HOOD (OPTIONAL) 20-3/4 E5211 36-318 12-5/8 IAIR [321] RETURN RETURN AIR E AL T, CONDENSATE DRAIN OPENING 28-3/4 IN DASEPAN 17311 37-5/8 /0,3 IT SUPPLY I955] I10271 X SEE THRU AIR SUPPLY Y THE BASE AIR Z CHART 4 - 29-5/8 [100] FLUE 3-1/4 [1591 [159] IT511 HOOD 14 1831 [3561 Q 25-1/2 [647] 1 -1/4 [32] CONTROL BOX AC,C`ES^S PPANEL 'r® INDOOR BLOWER OPTIONAL)� FACTORY ACCESS INSTALLED DISCONNECT F DLE HANDLE-----,,,:, �HAN 00 f 1- 00 8 8-3/8 31 [2141 19401 88-1/8 CONNECTION SIZES A 11 3/8' [351 DIA FIELD POWER SUPPLY HOLE B 2 112" [6/1 DIA POWER SUPPLY KNOCKOUT C 1 3/4' I511 DIA GAUGE ACCESS PLUG D 7/8" [221 DIA FIELD CONTROL WIRING HOLE E 3/4"-1/ NPi CONDENSATE DRAIN F 1/2"-id NPi GAS CONNECTION 3/4"-id NPi GAS CONNECTION G 2 - [511 DIA POWER SUPPLY KNOCKOUT THRU-THE-BASE CHART (FIELD INST) THESE HOLES REQUIRED FOR USE WITH ACCY KITS: C RBTMPWR001A01: 07 - GAS THRU CURB CRBTMPWR002A01: 08. 09 - GAS THRU CURB CRBTMPWR003A01: 07 - GAS THRU BASEPAN CRBTMPWR004A01: 08. 09 - GAS THRU BASEPAN THREADED WIRE REO'D HOLE CONDUIT SIZE USE SIZES (MAX.1 W 112' ACC. 7/8' [22.21 X 112' 24V 7/8" [22.21 Y 3/4' (001, 0031 POWER 1 1/8" 128.61 1 1/4" (002,004 1 3/4" 144.41 Z . (003) 1/2" FP' GAS 1 1/8" 128.61 (004) 3/4" FP' 1 3/4" I44.41 (001 8 0021 PROVIDES 311" FPT THRU CURB FLANGE A FITi ING, HOLE SIZE: 2' [50,81 THRU-THE-BASE CHART (FIOP) FOR "THRU-THE-BASEPAN" FACTORY OPTION, FITTINGS FOR ONLY X, Y, A Z ARE PROVIDED, �* FOR BELOW LISTED MODELS, A FIELD SUPPLIED 1/2" ADAPTER IS REOU IAED BETWEEN BASE PAN FITTING AND GAS VALVE: 48HCD, I'S,R-07 48HCD, S-08 48HCD,S-09 ' E STD, FILTER CONDENSATE DRAIN 28-3/8 lily] SUPPLY AIR K A E TURN , AIR OUTS] 13-7/8 AIR %f [3531 I659] 14 5-363 146] 6 10/ [160] (1771 5-314 4-3/8 37-7/8 [1461 [1131 [962] 1 (10651651 BAROMETRIC [2238] SUPAIRPLY f AIRURN ♦ FLOWRELIEf FR T RIGHT mm ITC CLASSIFICATION SHEET DATE SUPERCEDES 48HC 07 - 09 SINGLE ZONE ELECTRICAL 48TM502 REV U,S, ECCN:NSR 1 OF 2 09/28/16 10/05/10 COOLING WITH GAS HEAT m L B Fri_ FIT r•� v c) DMO Azo O m zo N j �Az O <o N I� ITT m 0 Mw CORNER A CORNER D Q �1 0 00 O O : 00 FRONT * STANDARD UNIT WEIGHT IS WITH LOW GAS HEAT AND WITHOUT PACKAGING. FOR OTHER OPTIONS AND ACCESSORIES, REFER TO THE PRODUCT DATA CATALOG. CORNER B CORNER C 48HC 01 - 09 SINGLE ZONE ELECTRICAL COOLING WITH GAS HEAT NOTES: 1, DIMENSIONS ARE IN INCHES, DIMENSIONS IN [ I AAE IN MILLIMETERS. 2. ,9 CENTER OF GRAVITY 3, 010, DIRECTION OF AIR FLOW FILTER ACCESS PANEL (DISPOSABLE FILTERS) CONDENSER COIL INDOOR COIL ACCESS PANEL BACK 0 DISCONNECT A LOCATION B, G CONDENSER COIL 49 36 11 OPTIONAL-----[913I FACTORY INSTALLED CONVENIENCE C OUTLET D 6-5/8 t , 1118] 2-5 3-3 59-1/2 167 [95] 115101 i CU LEFT WID 4 III —I III —I IR r r — 40-3/8 110261 20 3/4 ECONOMIZER HOOD [526] (OPTIONAL) 36-3/8 12-5/8 [925] I321] 4m RETURN AIA RETURN AIR 40-3/8 11027I 28-3/4 E7311 SUPPLY 37-5/8 [955] AIR SUPPLY AIR 4 6-114 1591 11 3-1/d 356I I83] 25-1/2 r 2-7/8 E146I i 1731 -3/8 CONTROL BOX ACCESS PANEL INDOOR BLOWER OPTIONAL) FACTORY ACCESS 253] INSTALLED DISCONNECT HANDLE IHANDLE 00 �,l : 00 8 8-3/8 1 YP 37 214] RB [940] 88-1/8 CONNECTION SIZES A 1 318' 1351 DIA FIELD POWER SUPPLY HOLE 8 2 112" [641 DIA POWER SUPPLY KNOCKOUT C 1 3/4" [511 DIA GAUGE ACCESS PLUG D 7/8' [221 DIA FIELD CONTROL WIRING HOLE E 3/4-14 NPT CONDENSATE DRAIN F 3/4-14 NPT GAS CONNECTION G 2" (511 DIA POWER SUPPLY KNOCK -OUT THRU-THE-BASE CHART r r r• USE r® ■ r DUl r•r•ri F r R SIZ ES IA X mom A A R FLANGE & FITTING, E STD, CONDENSATE DRAIN FILTER 28-3/8 FLUE HOOD 172 SUPPLY0] AIA 36-3/8 [925] NET URN 13- AIR 26[64 QUTSIDEA 7/8 [353] i 5-3/4 7 1146I [177] 5-3/4 6-3/8 [146] 11611 31-7/8 1 [2238] [9631 42 BAROMETRIC [1066] FRONT RELIEF RETURN FLOW AIR RIGHT SHEET DAr[ SUPERCEDES 48HC-D11, 48HC-D12 SINGLE ZONE ELECTRICAL 68TM50292 REV 1 OFz 10/19/12 04-23-12 COOLING WITH GAS HEAT m � mn m0C) v DSO c) Azo O M TT II. N j �Az O o <N I� ITT m 0 CORNER A CORNER D STANDARD UNIT WEIGHT IS WITH LOW GAS HEAT AND WITHOUT PACKAGING, FOR OTHER OPTIONS AND ACCESSORIES. REFER TO THE PRODUCT DATA CATALOG. CORNER B CORNER C TOP FRONT 1 2OF 2 1 10/19/12 1 04-23-12 h" " V COOLING'WIT IV S'ZT... 1-1 �M=92� I C :CEIVED un 10 2021 :ITY OF EDMONDS ELOPMENT SERVICES DEPARTMENT LOCATION DIMENSION CONDITION 48-in. (1219 mm) Unit disconnect is mounted on panel A 18-in. (457 mm) No disconnect, convenience outlet option 18-in. (457) mm Recommended service clearance 12-in. (305 mm) Minimum clearance 42-in. (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall) B 36-in. (914 mm) Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass) Special Check sources of flue products within 10-ft (3 m) of unit fresh air intake hood C 36-in. (914 mm) Side condensate drain is used 18-in. (457 mm) Minimum clearance 48-in. (1219 mm) No flue discharge accessory installed, surface is combustible material D 42-in. (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall, another unit) 36-in. (914 mm) Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass) Special Check for adjacent units or building fresh air intakes within 10-ft (3 m) of this unit's flue outlet NOTE: Unit not designed to have overhead obstruction. Contact Application Engineering for guidance on any application planning overhead obstruction or for vertical clearances. Fig. 4 — Service Clearance Dimensional Drawing — Sizes 07-12 INSTALLATION Step 1 — Plan for Unit Location Installation of this furnace at altitudes above 2000 ft (610 m) shall be made in accordance with the Listed High Altitude Conversion Kit available with this furnace. L'installation de ce g6n6rateur de chaleur a des altitudes sup6rieures a 2000 pi (610 m) doit &re effectu6e conform& ment aux instructions accompagnant la trousse de conversion pour haute altitude fournie avec cet appareil. Jobsite Survey Complete the following checks before installation. 1. Consult local building codes and the NEC (National Elec- trical Code) ANSI/NFPA 70 for special installation requirements. 2. Determine unit location (from project plans) or select unit location. 3. Check for possible overhead obstructions which may interfere with unit lifting or rigging. Select a location for the unit and its support system (curb or other) that provides for the minimum clearances required for safety. This includes the clearance to combustible surfaces, unit performance and service access below, around and above unit as specified in unit drawings. See Fig. 4. NOTE: Consider also the effect of adjacent units. Be sure that the unit is installed such that snow will not block the combustion intake or flute outlet. Unit may be installed directly on wood flooring or on Class A, B, or C roof -covering material when roof curb is used. Do not install unit in an indoor location. Do not locate air inlets near exhaust vents or other sources of contaminated air. For proper unit operation, adequate combustion and ventilation air must be provided in accordance with Section 5.3 (Air for Com- bustion and Ventilation) of the National Fuel Gas Code, ANSI Z223.1 (American National Standards Institute) and NFPA (National Fire Protection Association) 54 TIA-54-84-1. In Canada, installation must be in accordance with the CAN1- B149 installation codes for gas burning appliances. 10 Although unit is weatherproof, avoid locations that permit wa- PAD -MOUNTED INSTALLATION ter from higher level runoff and overhangs to fall onto the unit. 1. Prepare pad and unit supports Locate mechanical draft system flue assembly at least 4 ft 2. Check and tighten the bottom condensate drain connection (1.2 m) from any opening through which combustion products least ft from plug RECEIVED could enter the building, and at 4 (1.2 in) any adja- 3. Rig and place unit cent building (or per local code). Locate the flue assembly at least 10 ft (3.05 m) from an adjacent unit's fresh air intake 4. Convert unit to side duct connection arranggJi tMtl O 2021 hood if within 3 ft (0.91 m) of same elevation (or per local 5. Install field -fabricated ductwork at unit duct O1]P71j�W G+I Y OF ti4JMONDS code). When unit is located adjacent to public walkways, flue 6. Install outdoor air hood DEVELOPMENT SERVICES ENT assembly must be at least 7 ft (2.1 in) above grade. 7. Install flue hood Select a unit mounting system that provides adequate height to 8. Install gas piping allow installation of condensate trap per requirements. Refer to 9. Install condensate line trap and piping Step 11 - Install External Condensate Trap and Line for re- 10. Make electrical connections quired trap dimensions. 11. Install other accessories ROOF MOUNT Check building codes for weight distribution requirements. Unit operating weight is shown in Table 2. Step 2 - Plan for Sequence of Unit Installation The support method used for this unit will dictate different se- quences for the steps of unit installation. For example, on curb - mounted units, some accessories must be installed on the unit before the unit is placed on the curb. Review the following for recommended sequences for installation steps. CURB -MOUNTED INSTALLATION 1. Install curb 2. Install field -fabricated ductwork inside curb 3. Install accessory thru-base service connection package (affects curb and unit) (refer to accessory installation instructions for details) 4. Prepare bottom condensate drain connection to suit planned condensate line routing (refer to Step 10 for details) 5. Rig and place unit 6. Install outdoor air hood 7. Install flue hood 8. Install gas piping 9. Install condensate line trap and piping 10. Make electrical connections 11. Install other accessories FRAME -MOUNTED INSTALLATION Frame -mounted applications generally follow the sequence for a curb installation. Adapt as required to suit specific installa- tion plan. Step 3 - Inspect Unit Inspect unit for transportation damage. File any claim with trans- portation agency. Confirm before installation of unit that voltage, amperage and cir- cuit protection requirements listed on unit data plate agree with power supply provided. On units with hinged panel option, check to be sure all latches are snug and in closed position. Locate the carton containing the outside air hood parts; see Fig. 13. Do not remove carton until unit has been rigged and located in final position. Step 4 - Provide Unit Support ROOF CURB MOUNT Accessory roof curb details and dimensions are shown in Fig. 5. Assemble and install accessory roof curb in accordance with instructions shipped with the curb. NOTE: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasket supplied with the roof curb as shown in Fig. 5. Improperly applied gasket can also result in air leaks and poor unit performance. Curb should be level. This is necessary for unit drain to func- tion properly. Unit leveling tolerances are show in Fig. 6. Refer to Accessory Roof Curb Installation Instructions for additional information as required. Table 2 - Operating Weights 48HC** UNITS LB (KG) 07 08 09 11/12 Base Unit 765 (347) 925 (419.5) 925 (419.5) 1090 (495) Economizer Vertical 75 (34) 75 (34) 75 (34) 75 (34) Horizontal 122 (55) 122 (55) 122 (55) 122 (55) Powered Outlet 35 (16) 35 (16) 35 (16) 35 (16) Humidi-MiZer System 80 (36) 80 (36) 80 (36) 85 (39) Curb 14-in./356 mm 143 (65) 143 (65) 143 (65) 143 (65) 24-in./610 mm 245 (111) 245 (111) 245 (111) 245 (111) 11 ROOFCURB ACCESSORY # A NOTES: 1. ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLED. 2. INSULATED PANELS: 25.4 [1"] THK. POLYURETHANE FOAM, 44.5 [1-314] # DENSITY. CRRFCURB003A01 14" 3. DIMENSIONS IN [ ] ARE IN MILLIMETERS. I3561 4. ROOFCURB: 18 GAGE STEEL. 5. ATTACH DUCTWORK TO CURB. (FLANGES OF DUCT REST ON CURB). CRRFCURB004A01 6. SERVICE CLEARANCE 4 FEET ON EACH SIDE. [640] 7.� DIRECTION OF AIR FLOW. 8. CONNECTOR PACKAGE CRBTMPWR002A01 IS FOR THRU-THE-CURB GAS TYPE PACKAGE CRBTMPWR004A01 IS FOR THRU-THE-BOTTOM TYPE GAS CONNECTIONS. 53 112" [1358.91 3 11.42" 3/4" 153.5] 5] 53 [290.0] [3 [374.7] [57.21 26" [660.41 01 3/4" 4 3/16" [106.0] 144.41 32 9/16" [827.11 81 3/4 [2076.` 3" [76.2] 40 3/16" SUPPLYAIR RETURNAIR OPENING [1020.81 231/16" E585.81 Y16" 1.61 13/4" OPENING [44.5] 1 3/4" �31 17/32" 15 15/32 RE [44.51 [800.9] [392.9] (SUPPLIED WITH CURB) DU (FIELD SUPPLIED) I VIEW "B" CORNER DETAIL CONNECTOR PKG. ACC. GAS CONNECTION TYPE GAS FITTING POWER WIRING CONTROL WIRING ACCESSORY CONVENIENCE FITTING FITTING OUTLET WIRING CONNECTOR CRBTMPWR002A01 THRU THE CURB 3/4" [191 NPT 1 1/4" [31.71 NPT 1/2" [12.71 NPT 1/2" [12.71 NPT CRBTMPWR004A01 THRU THE BOTTOM 1 3/4" -� [44.5] 1.00" [25.41 "A" 12-1/2" [317.51 WIDE INSULATED DECK PANELS 9-15/i6"1252.41 WIDE INSULATED DECK PANEL 1 [4a.41 a] SECTION THRU SIDE I .-SM. NAIL (FIELD SUPPLIED) TYPICAL (4) SIDES 7116" [11�OUNTER FLASHING (FIELD SUPPLIED) OOFING FELT (FIELD SUPPLIED) CANT STRIP (FIELD SUPPLIED) ROOFING MATERIAL (FIELD SUPPLIED) -RIGID INSULATION (FIELD SUPPLIED) 6' 61/4" WAS 6' 7 1/6", 4'2' WAS 4' 2 13/16"; C 18 GA WAS 16 GA.; 15 13/16" WAS 15 15/16"; NAIL FIELD SUPPLIED WAS WITH CURB EV REVISION RECORD 4/22/13 GAS SERVICE PLATE THRU THE CURB If DRILL HOLE 0 2" [50.81 @ ASSEMBLY (IF REQUIRED) (SEE NOTE #8) NOTE #2 1-3/4" TYP [44.51 4' 2" [1270.0] SEE VIEW "B" CERTIFIED DRAWING DRAWING RELEASE LEVEL: PRODUCTION UNLESS OTHERWISE SPECIFIED THIRD ANGLE DIMENSIONS MEIN INCHES PROJECTION TOLERANCES ON: 1 DEC 2 DEC 3 DEC ANG MATERIAL }- f- f- f= urT AUTHORIZATION NUMBER TITLE - 1029120 CURB ASY, ROOF ENGINEERING MANUFACTURING ENGINEERING REQUIREMENTS - SIZE O WING NUMBER REV T-005, Y-002 DRAFTER CHECKER 50HJ4050 C 1067898 WEIGHT: - MMC 1-16/09 - - D sHE s SURFACEFINISH MFGIPURCH MODEL (INTERNAL USE ONLY) NEM DF INGING SG1L ISTRIBm., mn mO� 0 Dm, AZo o M zI. mo o N j z O N < m� m 0 t« B MAXIMUM ALLOWABLE DIFFERENCE IN. (MM) A-B B-C A-C 0.5" (13) 1.0" (25) 1.0" (25) Fig. 6 — Unit Leveling Tolerances Install insulation, cant strips, roofing felt, and counter flashing as shown. Ductwork must be attached to curb and not to the unit. The accessory thru-the-base power and gas connection package must be installed before the unit is set on the roof curb. If field -installed thru-the-roof curb gas connections are desired, use factory -supplied pipe coupling and gas plate as- sembly to mount the thru-the-roof curb connection to the roof curb. Gas connections and power connections to the unit must be field -installed after the unit is installed on the roof curb. If electric and control wiring is to be routed through the base - pan, attach the accessory thru-the-base service connections to the basepan in accordance with the accessory installation in- structions. SLAB MOUNT (HORIZONTAL UNITS ONLY) Provide a level concrete slab that extends a minimum of 6 in. (150 mm) beyond unit cabinet. Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from ob- structing airflow. NOTE: Horizontal units may be installed on a roof curb if re- quired. ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR SLAB MOUNT) A non-combustible sleeper rail can be used in the unit curb support area. If sleeper rails cannot be used, support the long sides of the unit with a minimum of 3 equally spaced 4-in. x 4-in. (102 mm x 102 mm) pads on each side. Step 5 — Field Fabricate Ductwork Cabinet return -air static pressure (a negative condition) shall not exceed 0.35 in. wg (87 Pa) with economizer or 0.45 in. wg (112 Pa) without economizer. For vertical ducted applications, secure all ducts to roof curb and building structure. Do not connect ductwork to unit. Fabricate supply ductwork so that the cross sectional dimen- sions are equal to or greater than the unit supply duct opening dimensions for the first 18 in. (458 mm) of duct length from the unit basepan. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes. Ducts passing through unconditioned spaces must be insulated and covered with a vapor barrier. If a plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes. A minimum clearance is not required aroun RECEIVED ®CAUTION 21 NDS PROPERTY DAMAGE HAZARD DEVELOPMENT DEPARTN Failure to follow this caution may result in damage to roofing materials. Membrane roofs can be cut by sharp sheet metal edges. Be careful when placing any sheet metal parts on such roof. Step 6 — Rig and Place Unit Keep unit upright and do not drop. Spreader bars are not re- quired if top crating is left on unit. Rollers may be used to move unit across a roof. Level by using unit frame as a refer- ence. See Table 2 and Fig. 7 for additional information. Lifting holes are provided in base rails as shown in Fig. 7. Re- fer to rigging instructions on unit. Rigging materials under unit (cardboard to prevent base pan damage) must be removed PRIOR to placing the unit on the roof curb. When using the standard side drain connection, ensure the red plug in the alternate bottom connection is tight. Do this before setting the unit in place. The red drain pan can be tightened with a 1/2-in. square socket drive extension. For further details see Step 10 — Install External Condensate Trap and Line on page 19. Before setting the unit onto the curb, recheck gasketing on curb. A CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage. All panels must be in place when rigging. Unit is not de- signed for handling by fork truck when panels or pack- aging are removed. If using top crate as spreader bar, once unit is set, care- fully lower wooden crate off building roof top to ground. Ensure that no people or obstructions are below prior to lowering the crate. 13 im POSITION ALL SEAL STRIPS IN PLACE BEFORE INSTALLING UNIT ON ROOF CURB AS CLOSE TO THIS END AS POSSIBLE. 36"- 54" (914-1371) DETAIL " F—C E Jun 1 CITY OF UNIT MAX WEIGHT DIMENSIONS A B C lb kg in. mm in. mm in. mm 48HC*(A,B,D,E)07 1200 545 88.0 2235 44.0 1120 41.5 1055 48HC*(D,E)08 1420 645 88.0 2235 44.0 1120 49.5 1255 48HC*(D,E)09 1420 645 88.0 2235 44.0 1120 49.5 1255 48HC*(D,E)11/12 1665 757 1 88.0 2235 1 32.0 815 1 49.5 1255 NOTES: 1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used. 2. Dimensions in ( ) are in millimeters. 3. Hook rigging shackles through holes in base rail, as shown in detail "A." Holes in base rails are centered around the unit center of gravity. Use wooden top to prevent rigging straps from damaging unit. Fig. 7 — Rigging Details POSITIONING ON CURB Position unit on roof curb so that the following clearances are maintained: 1/4 in. (6.4 mm) clearance between the roof curb and the base rail inside the front and back, 0.0 in. clearance be- tween the roof curb and the base rail inside on the duct end of the unit. This will result in the distance between the roof curb and the base rail inside on the condenser end of the unit being approximately 3 5/16 in. (8 mm). Although unit is weatherproof, guard against water from higher level runoff and overhangs. ztCAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage. All panels must be in place when rigging. Unit is not de- signed for handling by fork truck when panels or pack- aging are removed. SUPPLY DUCT OPENING COVER IVED 2021 MONDS 'SERVICES Fig. 8 — Horizontal Conversion Panels Field -supplied flanges should be attached to horizontal duct openings and all ductwork should be secured to the flanges. In- sulate and weatherproof all external ductwork, joints, and roof or building openings with counter flashing and mastic in accor- dance with applicable codes. Do not cover or obscure visibility to the unit's informative data plate when insulating horizontal ductwork. 14 Step 7 — Convert to Horizontal and Connect Ductwork (when required) Unit is shipped in the vertical duct configuration. Unit without factory -installed economizer or return -air smoke detector op- tion may be field -converted to horizontal ducted configuration. To convert to horizontal configuration, remove screws from side duct opening covers (see Fig. 9) and remove covers. Use the screws to install the covers on vertical duct openings with the insulation -side down. The panels must be inserted into the notches on the basepan to properly seal. The notches are cov- ered by the tape used to secure the insulation to the basepan and are not easily seen. See Fig. 10 for position of the notches in the basepan. Seals around duct openings must be tight. Se- cure with screws as shown in Fig. 11. Cover seams with foil duct tape. Field -supplied flanges should be attached to horizontal duct openings and all ductwork should be secured to the flanges. In- sulate and weatherproof all external ductwork, joints, and roof or building openings with counter flashing and mastic in accor- dance with applicable codes. Do not cover or obscure visibility to the unit's informative data plate when insulating horizontal ductwork. REMOVABLE HORIZONTAL RETURN DUCT OPENING COVER SUPPLY DUCT OPENING COVER Fig. 9 — Horizontal Conversion Panels Fig. 10 — Location of Notches 'ED 21 Ds VICES Fig. 11 — Horizontal Duct Panels In Place Step 8 — Install Outside Air Hood ECONOMIZER AND TWO -POSITION DAMPER HOOD PACKAGE REMOVAL AND SETUP — FACTORY OPTION 1. The hood is shipped in knock -down form and must be field assembled. The indoor coil access panel is used as the hood top while the hood sides, divider and filter are packaged together, attached to a metal support tray using plastic stretch wrap, and shipped in the return air compart- ment behind the indoor coil access panel. The hood assem- bly's metal tray is attached to the basepan and also attached to the damper using two plastic tie -wraps. 2. To gain access to the hood, remove the filter access panel. (See Fig. 12.) 3. Locate the (2) screws holding the metal tray to the basepan and remove. Locate and cut the (2) plastic tie -wraps secur- ing the assembly to the damper. (See Fig. 13.) Be careful to not damage any wiring or cut tie -wraps securing any wiring. 4. Carefully lift the hood assembly (with metal tray) through the filter access opening and assemble per the steps out- lined in Economizer Hood and Two -Position Hood, below. ECONOMIZER HOOD AND TWO -POSITION HOOD ASSEMBLY NOTE: If the power exhaust accessory is to be installed on the unit, the hood shipped with the unit will not be used and must be discarded. Save the aluminum filter for use in the power exhaust hood assembly. 1. The indoor coil access panel will be used as the top of the hood. Remove the screws along the sides and bottom of the indoor coil access panel. See Fig. 14. 2. Swing out indoor coil access panel and insert the hood sides under the panel (hood top). Use the screws provided to attach the hood sides to the hood top. Use screws pro- vided to attach the hood sides to the unit. See Fig. 15. 3. Remove the shipping tape holding the economizer baro- metric relief damper in place (economizer only). 15 4. Insert the hood divider between the hood sides. See Fig. 15 and 16. Secure hood divider with 2 screws on each hood side. The hood divider is also used as the bottom fil- ter rack for the aluminum filter. 5. Open the filter clips which are located underneath the hood top. Insert the aluminum filter into the bottom filter rack (hood divider). Push the filter into position past the open filter clips. Close the filter clips to lock the filter into place. See Fig. 16. 6. Caulk the ends of the joint between the unit top panel and the hood top. 7. Replace the filter access panel. FILTER ACCESS PANEL L Fig. 12 — Typical Access Panel Locations ARTS TIE WRAP .REWS FORMETAL TRAY Y (2) Fig. 13 — Economizer and Two -Position Damper Hood Parts Location ECEIVED Jun 10 2021 CITY OF EDMONDS EVELOPMENT SERVICES DEPARTMENT 9 TOP PANEL INDOOR COIL ACCESS PANEL Fig. 14 — Indoor Coil Access Panel Relocation HOOD DIVIDER Fig. 15 — Economizer Hood Construction BAROMET RELIEF r1L1 GM CLI P Fig. 16 — Economizer Filter Installation 16 Step 9 — Install Flue Hood Table 5 — Natural Gas Manifold Pressure Ranges Flue hood is shipped screwed to the basepan beside the burner compartment access panel. Remove from shipping location and using screws provided, install flue hood and screen in location shown in Fig. 17. Insert the flue hood's side flange through the access panel cutout, then rotate the flue hood until the top and bottom flanges contact the outside of the access panel; secure flue hood with screws. Fig. 17 — Flue Hood Details Step 10 — Install Gas Piping Installation of the gas piping must be accordance with local building codes and with applicable national codes. In U.S.A., refer to NFPA 54/ANSI Z223.1 National Fuel Gas Code (NFGC). In Canada, installation must be in accordance with the CAN/CSA 13149.1 and CAN/CSA 13149.2 installation codes for gas burning appliances. This unit is factory equipped for use with Natural Gas fuel at ele- vations up to 2000 ft (610 m) above sea level. Unit may be field converted for operation at elevations above 2000 ft (6 10 m) and/or for use with liquefied petroleum fuel. See accessory kit installation instructions regarding these accessories. NOTE: Furnace gas input rate on rating plate is for installation up to 2000 ft (610 m) above sea level. The input rating for alti- tudes above 2000 ft (610 m) must be derated by 4% for each 1000 ft (305 m) above sea level. For natural gas applications, gas pressure at unit gas connection must not be less than 4 in. wg (996 Pa) or greater than 13 in. wg (3240 Pa) while the unit is operating. For liquefied petroleum ap- plications, the gas pressure must not be less than 11 in. wg (2740 Pa) or greater than 13 in. wg (3240 Pa) at the unit connec- tion. See Tables 3 and 4. Table 3 — Natural Gas Supply Line Pressure Ranges UNIT MODEL UNIT SIZE MIN MAX 48HCD/E/F 07, 08, 09, 11, 4.0 in. wg 13.0 in. wg 12 (996 Pa) (3240 Pa) Table 4 — Liquid Propane Supply Line Pressure Ranges UNIT MODEL UNIT SIZE MIN MAX 48HCD/E/F 07, 08, 09, 11, 11.0 in. wg 13.0 in. wg 12 (2740 Pa) (3240 Pa) The gas supply pipe enters the unit at the burner access panel on the front side of the unit, through the long slot at the bottom of the access panel. The gas connection to the unit is made to the 1/2-in. or 3/4-in. FPT gas inlet port on the unit gas valve. Manifold pressure is factory -adjusted for NG fuel use. Adjust as required to obtain best flame characteristics. See Tables 5 and 6. UNIT MODEL UNIT SIZE HIGH FIRE LOW FIRE 48HCD/E/F 07, 08, 09, 11, 3.5 in. wg 2 i D 12 (872 Pa) NOTE: LOW FIRE, 1.7 in. wg (423 Pa), applies to the following units only: 48HCD/E/F*07, 48HCD*08 and 48HCD*09. Jun 10 2021 Manifold pressure for LP fuel use must be adjusted-OdWAfiqA range. Follow instructions in the accessory kiPtbEhJflktNt1fiJW10ES readjustment. DEPARTMENT Table 6 — Liquid Propane Manifold Pressure Ranges UNIT MODEL UNIT SIZE HIGH FIRE LOW FIRE 48HCD/E/F 07, 08, 09, 11, 10.0 in. wg 5.7 in. wg 12 (2490 Pa) (1420 Pa) NOTE: LOW FIRE, 5.0 in. wg (1420 Pa), applies to the following units only: 48HCD/E/F*07, 48HCD*08 and 48HCD*09. ®CAUTION EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in damage to equipment. When connecting the gas line to the unit gas valve, the installer MUST use a backup wrench to prevent damage to the valve. Install a gas supply line that runs to the unit heating section. Refer to the NFPA 54/NFGC or equivalent code for gas pipe sizing data. Do not use a pipe smaller than the size specified. Size the gas supply line to allow for a maximum pressure drop of 0.5-in. wg (124 Pa) between gas regulator source and unit gas valve connection when unit is operating at high -fire flow rate. The gas supply line can approach the unit in three ways: hori- zontally from outside the unit (across the roof), thru-curb/under unit basepan (accessory kit required) or through unit basepan (factory option or accessory kit required). Consult accessory kit installation instructions for details on these installation methods. Observe clearance to gas line components per Fig. 18. x - 9" MINIMUM CLEARANCE FOR PANEL REMOVAL / GAS ~� REGULATOR* MANUAL GAS UTOFF VALVE* SHUTOFF BASE UNIT BASE UNIT] 48" MINIMUM DRIP LEG I BASE RAIL R PER NFGC* r \ ROOF FIELD -FABRICATED CURB SUPPORT* FROM GAS METER LEGEND NOTE: Follow all local codes. NFGC — National Fuel Gas Code * Field supplied. STEEL PIPE NOMINAL DIAMETER (in.) SPACING OF SUPPORTS X DIMENSION (ft) 1/2 6 3/4 or 1 8 1 1/4 or larger 10 Fig. 18 — Gas Piping Guide (with Accessory Thru- the-Curb Service Connections) 17 FACTORY OPTION THRU-BASE CONNECTIONS (GAS CONNECTIONS) This service connection kit consists of a NPT gas adapter fit- ting, an electrical bulkhead connector and a 3/4-in. electrical bulkhead connector, all factory -installed in the embossed (raised) section of the unit basepan in the condenser section. See Fig. 19. LOW VOLTAGE I CONDUIT 0 CONNECTOR HIGH VOLTAGE CONDUIT CONNECTOR BRASS FITTING FOR 3 TO 6 TON UNITS. Fig. 19 — Thru-Base Connection Fittings The thru-base gas connector has male and female threads. The male threads protrude above the basepan of the unit; the female threads protrude below the basepan. Check tightness of connector lock nuts before connecting gas piping. Gas Line Install a 1/2-in. (08 and 09 size Low Gas units only) or 3/4-in. (for all other units) NPT street elbow on the thru-base gas fit- ting. Attach an appropriate size pipe nipple with minimum length of 16-in. (406 mm) (field -supplied) to the street elbow and extend it through the access panel at the gas support brack- et. See Fig. 20. FOR 3-6 TON UNITS BRACKET Fig. 20 — Gas Line Piping Other hardware required to complete the installation of the gas supply line will include a manual shutoff valve, a sediment trap (drip leg) and a ground joint union. A pressure regulator valve may also be required (to convert gas pressure from pounds to inches of pressure). The manual shutoff valve must be located within 6-ft (1.83 m) of the unit. The union, located in the final leg entering the unit, must be located at least 9-in. (230 mm) away from the access panel to permit the panel to be removed for service. If a regulator valve is installed, it must be located a minimum of 4-ft (1220 mm) away from the unit's flue outlet. Some municipal codes require that the manual shutoff valve be located upstream of the sediment trap. See Fig. 21 and Fig. 22 for typical piping arrangements for gas piping that has been routed through the sidewall of the curb. See Fig. 23 for typical piping arrangement when thru-base is used. Ensure that all piping does not block access to the unit's main control box or limit the required working space in front of the control box. :ECEIVED Jun 10 2021 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT iit Base Rail Fig. 21 — Gas Piping with Thru-Curb Accessory 9" (229mm) MIN BURNER 0 ACCESS PANEL / UNION THRU-CURB ADAPTER y ,, i UNIT BASE RAIL I DRIP / LEG SHUT OFF r VALVE Fig. 22 — Gas Piping with Thru-Curb Accessory (Alternate Layout) Fig. 23 — Gas Piping with Thru-Base Accessory 18 When installing the gas supply line, observe local codes per- taining to gas pipe installations. Refer to the NFPA 54/ANSI Z223.1 NFGC latest edition (in Canada, CAN/CSA 13149.1). In the absence of local building codes, adhere to the following pertinent recommendations: 1. Avoid low spots in long runs of pipe. Grade all pipe 1/4- inch in every 15 ft (7 min in every 5 m) to prevent traps. Grade all horizontal runs downward to risers. Use risers to connect to heating section and to meter. 2. Protect all segments of piping system against physical and thermal damage. Support all piping with appropriate straps, hangers, etc. Use a minimum of one hanger every 6 ft (1.8 m). For pipe sizes larger than 1/2-in., follow recom- mendations of national codes. 3. Apply joint compound (pipe dope) sparingly and only to male threads of joint when making pipe connections. Use only pipe dope that is resistant to action of liquefied petro- leum gases as specified by local and/or national codes. If using PTFE (Teflon*) tape, ensure the material is Double Density type and is labeled for use on gas lines. Apply tape per manufacturer's instructions. 4. Pressure -test all gas piping in accordance with local and national plumbing and gas codes before connecting piping to unit. NOTE: Pressure test the gas supply system after the gas supply piping is connected to the gas valve. The supply piping must be disconnected from the gas valve during the testing of the piping systems when test pressure is in excess of 0.5 psig (3450 Pa). Pres- sure test the gas supply piping system at pressures equal to or less than 0.5 psig (3450 Pa). The unit heating section must be isolated from the gas piping system by closing the external main manual shutoff valve and slightly opening the ground joint union. Check for gas leaks at the field -installed and factory -installed gas lines after all piping connections have been completed. Use soap -and -water solution (or method specified by local codes and/or regulations). A WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury, death and/or property damage. • Connect gas pipe to unit using a backup wrench to avoid damaging gas controls. • Never purge a gas line into a combustion chamber. • Never test for gas leaks with an open flame. Use a commercially available soap solution made specifical- ly for the detection of leaks to check all connections. • Use proper length of pipe to avoid stress on gas con- trol manifold. NOTE: If orifice hole appears damaged or it is suspected to have been re -drilled, check orifice hole with a numbered drill bit of cor- rect size. Never re -drill an orifice. A burr -free and squarely aligned orifice hole is essential for proper flame characteristics. IVED 02021 EDMONDS ENT SERVICES Fig. 24 — Orifice Hole Step 11 — Install External Condensate Trap and Line The unit has one 3/4-in. condensate drain connection on the end of the condensate pan and an alternate connection on the bot- tom. See Fig. 25. Unit airflow configuration does not deter- mine which drain connection to use. Either drain connection can be used with vertical or horizontal applications. To use the alternate bottom drain connection, remove the red drain plug from the bottom connection (use a 1/2-in. square socket drive extension) and install it in the side drain connection. S I ANDAKU DRAIN PLUG SIDE DRAIN (FACTORY -INSTALLED) _. _....... E BOTTOM DRAIN Fig. 25 — Condensate Drain Pan (Side View) The piping for the condensate drain and external trap can be completed after the unit is in place. See Fig. 26. NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in. (102mm) trap is recommended. " Teflon is a registered trademark of DuPont. 19 MINIMUM PITC 1-(25 mm) PEF 10'(3 m)OF LII TO ROOF DRAIN DRAIN PLUG SEE NOTE NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in. (102 mm) trap is recommended. Fig. 26 — Condensate Drain Piping Details All units must have an external trap for condensate drainage. Install a trap at least 4-in. (102 mm) deep and protect against freeze-up. If drain line is installed downstream from the exter- nal trap, pitch the line away from the unit at 1-in. per 10 ft (25 mm in 3 m) of run. Do not use a pipe size smaller than the unit connection (3/4-1n.). Step 12 — Make Electrical Connections &WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Do not use gas piping as an electrical ground. Unit cabi- net must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Elec- trical Code); ANSUNFPA 70, latest edition (in Canada, Canadian Electrical Code CSA [Canadian Standards As- sociation] C22.1), and local electrical codes. NOTE: Field -supplied wiring shall conform with the limitations of minimum 63°F (3°C) rise. FIELD POWER SUPPLY If equipped with optional Powered Convenience Outlet: The power source leads to the convenience outlet's transformer pri- mary are not factory connected. Installer must connect these leads according to required operation of the convenience out- let. If an always -energized convenience outlet operation is de- sired, connect the source leads to the line side of the unit - mounted disconnect. (Check with local codes to ensure this method is acceptable in your area.) If a de -energize via unit disconnect switch operation of the convenience outlet is de- sired, connect the source leads to the load side of the unit dis- connect. On a unit without a unit -mounted disconnect, connect the source leads to compressor contactor C and indoor fan con- tactor IFC pressure lugs with unit field power leads (see Fig. 27). Units Without Disconnect or HACR Option C IFC 11 13 13 y GRLpRECEIVED Jun 10 2021 CITY OF EDMONDS -L _ _ I_ _ I DEVELOPMENT SERVICES I Disconnect I DEPARTMENT I per I NEC t — r — — I— — —I— — _r — — L1 L2 L3 Ground 208/230-3-60 (GR) 460-3-60 575-3-60 Units With Disconnect or HACR Option L1—————Q O Optional L2 — — — — — (a ) Disconnect 3 �J Switch Factory Wiring L3--—_ _ I I Ground_ _ZDisconnect (GR) I Equip GR Lug factory test leads; discard. Fig. 27 — Power Wiring Connections Field power wires will be connected line -side pressure lugs on the power terminal block or at factory -installed option non - fused disconnect or HACR circuit breaker. Field power wires are connected to the unit at line -side pres- sure lugs on compressor contactor C and indoor fan contactor IFC (see wiring diagram label for control box component ar- rangement), at factory -installed option non -fused disconnect switch or HACR circuit breaker. Max wire size is #4 AWG (copper only) per pole on contactors and #2ga AWG (copper only) per pole on optional non -fused disconnect or HACR cir- cuit breaker. See Fig. 27 and the unit label diagram for field power wiring connections. NOTE: TEST LEADS — Unit may be equipped with short leads (pigtails) on the field line connection points on contactor C or optional disconnect switch. These leads are for factory run -test purposes only; remove and discard before connecting field power wires to unit connection points. Make field power connections directly to line connection pressure lugs only. WARNING FIRE HAZARD Failure to follow this warning could result in personal injury, death, or property damage. Do not connect aluminum wire between disconnect switch and air conditioning unit. Use only copper wire. (See Fig. 28.) 20 ELECTRIC DISCONNECT SWITCH e Fig. 28 — Disconnect Switch and Unit UNITS WITH FACTORY -INSTALLED NON -FUSED DIS- CONNECT OR HACR The factory -installed option non -fused disconnect (NFD) or HACR switch is located in a weatherproof enclosure located under the main control box. The manual switch handle and shaft are shipped in the disconnect or HACR enclosure. As- semble the shaft and handle to the switch at this point. Discard the factory test leads (see Fig. 27). Connect field power supply conductors to LINE side terminals when the switch enclosure cover is removed to attach the handle. Fig. 29 — Location of Non -Fused Disconnect Enclosure To field install the NFD shaft and handle: 1. 2. 3. 4. 5. 6. 7. 8. 10 Remove the unit front panel (see Fig. 2 or Fig. 3). Remove (3) hex screws on the NFD enclosure - (2) on the face of the cover and (1) on the left side cover. See Fig. 30. Remove the front cover of the NFD enclosure. Make sure the NFD shipped from the factory is at OFF position (the arrow on the black handle knob is at OFF). Insert the shaft with the cross pin on the top of the shaft in the horizontal position. Measure from the tip of the shaft to the top surface of the black pointer; the measurement should be 3.75 to 3.88 in. (95 to 99 mm). Tighten the locking screw to secure the shaft to the NFD. Turn the handle to the OFF position with red arrow point- ing at OFF. Install the handle on to the painted cover horizontally with the red arrow pointing to the left. Secure the handle to the painted cover with (2) screws and lock washers supplied. 11. Engaging the shaft into the handle socket, re -install (3) hex screws on the NFD enclosure. 12. Re -install the unit front panel. ECEIVED 102021 CITY OF ONDS DEVELOP SERVICES ART ENT Fig. 30 — Handle and Shaft Assembly for NFD Fig. 31 — Location of HACR Circuit Breaker Enclosure To field install the HACR circuit breaker shaft and handle: 1. Remove the unit front panel (see Fig. 2 or Fig. 3). 2. Remove (3) hex screws on the HACR enclosure - (2) on the face of the cover and (1) on the left side cover. See Fig. 32. 3. Remove the front cover of the HACR enclosure. 4. Make sure the HACR circuit breaker shipped from the fac- tory is at OFF position (the white arrow pointing at OFF). 5. Insert the shaft all the way with the cross pin on the top of the shaft in the horizontal position. 6. Tighten the locking screw to secure the shaft to the HACR circuit breaker. 7. Turn the handle to the OFF position with red arrow point- ing at OFF. 8. Install the handle on to the painted cover horizontally with the red arrow pointing to the left. 9. Secure the handle to the painted cover with (2) screws and lock washers supplied. 10. Engaging the shaft into the handle socket, re -install (3) hex screws on the HACR circuit breaker enclosure. 11. Re -install the unit front panel. 21 W Fig. 32 — Handle and Shaft Assembly for HACR Circuit Breaker UNITS WITHOUT FACTORY -INSTALLED NON -FUSED DISCONNECT OR HACR CIRCUIT BREAKER When installing units, provide a disconnect switch per NEC (National Electrical Code) of adequate size. Disconnect sizing data is provided on the unit informative plate. Locate on unit cabinet or within sight of the unit per national or local codes. Do not cover unit informative plate if mounting the disconnect on the unit cabinet. ALL UNITS All field wiring must comply with NEC and all local codes. Size wire based on MCA (Minimum Circuit Amps) on the unit informative plate. See Fig. 27 and unit label diagram for power wiring connections to the unit and equipment ground. Maxi- mum wire size is #4 ga AWG (copper only) per pole on contac- tors and #2ga AWG (copper only) per pole on optional non - fused disconnect or HACR. Provide a ground -fault and short-circuit over -current protection device (fuse or breaker) per NEC Article 440 (or local codes). Refer to unit informative data plate for MOCP (Maximum Over -current Protection) device size. NOTE: Units ordered with factory -installed HACR do not need an additional ground -fault and short-circuit over -current protective device unless required by local codes. All field wiring must comply with the NEC and local require- ments. All units except 208/230-v units are factory wired for the volt- age shown on the nameplate. If the 208/230-v unit is to be con- nected to a 208-v power supply, the control transformer must be rewired by moving the black wire with the 1/4-in. female spade connector from the 230-v connection and moving it to the 208-v 1/4-in. male terminal on the primary side of the trans- former. Refer to unit label diagram for additional information. Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate. On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown below to determine the percent of voltage imbalance. Operation on im- proper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invalidate any applicable Carrier warranty. Unbalanced 3-Phase Supply Voltage IMPORTANT: Never operate a motor where a phase imbalance in supply voltage is greater that°IVE D the following formula to determine the per voltage imbalance. 2021 CITY OF EDMONDS max voltage d�o eviYfWRT SERVICES a voltageMENT /o Voltage Imbalance = 100 x average RT average voltage Example: Supply voltage is 230-3-60 A B C AB=224v BC=231 v Moro AC = 226 v Average Voltage = (224 + 231 + 226) _ 631 _ 227 Determine maximum deviation from average voltage. (AB) 227-224 = 3 v (BC) 231-227 = 4 v (AC) 227-226 = 1 v Maximum deviation is 4 v. Determine percent of voltage imbalance. % Voltage Imbalance = 100 x 227 = 1.78% This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%. IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately. NOTE: Check all factory and field electrical connections for tightness. CONVENIENCE OUTLETS ®WARNING ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death. Units with convenience outlet circuits may use multiple disconnects. Check convenience outlet for power status before opening unit for service. Locate its disconnect switch, if appropriate, and open it. Lock -out and tag -out this switch, if necessary. Two types of convenience outlets are offered on 48HC models: non -powered and unit -powered. Both types provide a 125-volt GFCI (ground -fault circuit -interrupter) duplex receptacle rated at 15-A behind a hinged waterproof access cover, located on the end panel of the unit. See Fig. 33. 22 PW RD-CO TRANSFORMER Fig. 33 — Convenience Outlet Location Installing Weatherproof Cover A weatherproof while -in -use cover for the factory -installed convenience outlets is now required by UL standards. This cover cannot be factory -mounted due its depth; it must be in- stalled at unit installation. For shipment, the convenience outlet is covered with a blank cover plate. The weatherproof cover kit is shipped in the unit's control box. The kit includes the hinged cover, a backing plate and gasket. DISCONNECT ALL POWER TO UNIT AND CONVE- NIENCE OUTLET. LOCK -OUT AND TAG -OUT ALL POWER. Remove the blank cover plate at the convenience outlet; dis- card the blank cover. Loosen the two screws at the GFCI duplex outlet, until approx- imately 1/2-in. (13 mm) under screw heads are exposed. Press the gasket over the screw heads. Slip the backing plate over the screw heads at the keyhole slots and align with the gasket; tighten the two screws until snug (do not over -tighten). Mount the weatherproof cover to the backing plate as shown in Fig. 34. Remove two slot fillers in the bottom of the cover to permit service tool cords to exit the cover. Check for full clos- ing and latching. COVER - WHILE -IN -USE WEATHERPROOF GFCI RECEPTACLE NOT INCLUDED o � 0 1 b ® BASEPLATE FOR GFCI RECEPTACLE GASKET Fig. 34 — Weatherproof Cover Installation Non powered type This type requires the field installation of a general-purpose 125-volt 15-A circuit powered from a source elsewhereinthe building. Observe national and local codes ��c1 s� 3EdC size, fuse or breaker requirements and dis and location. Route 125-v power supply conduaors 1 tpLthe bottom of the utility box containing the duplex r pta e 21 CITY OF EDMONDS Unit -Powered Type DEVELOPMENT SERVICES A unit -mounted transformer is factory -installed t8EgWHWn the main power suppl voltage to the unit to 115-v at the duplex receptacle. This option also includes a manual switch with fuse, located in a utility box and mounted on a bracket behind the convenience outlet; access is through the unit's control box access panel. See Fig. 33. The primary leads to the convenience outlet transformer are not factory -connected. Selection of primary power source is a customer -option. If local codes permit, the transformer primary leads can be connected at the line -side terminals on the unit - mounted non -fused disconnect or HACR breaker switch; this will provide service power to the unit when the unit disconnect switch or HACR switch is open. Other connection methods will result in the convenience outlet circuit being de -energized when the unit disconnect or HACR switch is open. See Fig. 35. Duty Cycle The unit -powered convenience outlet has a duty cycle limita- tion. The transformer is intended to provide power on an inter- mittent basis for service tools, lamps, etc; it is not intended to provide 15-amps loading for continuous duty loads (such as electric heaters for overnight use). Observe a 50% limit on cir- cuit loading above 8-amps (i.e., limit loads exceeding 8-amps to 30 minutes of operation every hour). Test the GFCI receptacle by pressing the TEST button on the face of the receptacle to trip and open the receptacle. Check for proper grounding wires and power line phasing if the GFCI re- ceptacle does not trip as required. Press the RESET button to clear the tripped condition. Fuse on Power Type The factory fuse is a Bussman "Fusetron"1 T-15, non-renew- able screw -in (Edison base) type plug fuse. Using Unit -Mounted Convenience Outlets Units with unit -mounted convenience outlet circuits will often require that two disconnects be opened to de -energize all power to the unit. Treat all units as electrically energized until the conve- nience outlet power is also checked and de-energization is con- firmed. Observe National Electrical Code Article 210, Branch Cir- cuits, for use of convenience outlets. 23 Bussman and Fusetron are trademarks of Cooper Technologies Company. SCHEMATIC CONVENIENCE OUTLET 460V I F-1 I RED YEL BLU GRA 2dOVNOTESt_�_ GRA= , CONNECT PER RED— LOCRALCOD210VESUPPLY 2FORAN4YEL— CONNECT DLU TO GRA AND RED TO YEL %d X2 X3 X1 ' SECONDARY RED YEL BLU GRA N1 H3 N2 H4 20V TRAN4 RED GRA i�WNT— SECONDARY600VBLN120 GROUND FAULT TRAN4 INTERRUPTER CONVENIENCE OUTLET Xd X, GFI - CO X2 z3 -I�—GRN-YEL GRN-YEL SECONDARY �Q 120VJ SWITCH _ _ FUSE BLN W HT �� o a 15 AMP UNIT CONNECT PRIMARY TRANSFORMER VOLTAGE AS CONNECTIONS TERMINALS 208,230 240 1-1: RED +YEL H1 + H3 L2: BLU + GRA H2 + H4 L1: RED H1 460 480 Splice BLU + YEL H2 + H3 L2: GRA H4 575 600 L1: RED H1 L2: GRA H2 Fig. 35 — Powered Convenience Outlet Wiring HACR CIRCUIT BREAKER The amp rating of the HACR factory -installed option is based on the size, voltage, indoor motor and other electrical options of the unit as shipped from the factory. If field -installed acces- sories are added or changed in the field (i.e., power exhaust, ERV), the HACR circuit breaker may no longer be of the prop- er amp rating and therefore will need to be removed from the unit. See unit nameplate and label on factory -installed HACR circuit breaker for the amp rating of the HACR circuit breaker that was shipped with the unit from the factory. See unit name- plates for the proper fuse, HACR circuit breaker or maximum over -current protection device required on the unit with field - installed accessories. A CAUTION The HACR circuit breaker is rated for 240V/480V Wye and Delta, and 600V Wye power supply. Do not connect to 600V Delta power supply. Severe damage to equipment would occur. A ATTENTION Le voltage nominal du disjoncteur CACR est de 240V/480V en etoile-triangle, et 600V en etoile. Ne pas brancher sur une alimentation electrique de 600V en triangle. Cela causera de graves dommages a I'equipment. 48TM503700 F Fig. 36 — HACR Circuit Breaker Caution Label FACTORY OPTION THRU-BASE CONNECTIONS (ELEC- TRICAL CONNECTIONS) This service connection kit consists of a 1/2-in. electrical bulk- head connector and a 11/4-in. electrical bulkhe�I E factory -installed in the embossed (raised) sec . t basepan in the condenser section. The 1/2-in. bulkheo�eer021 for enables the low -voltage control wires to pass {A ughh t basepan. The 11/4-in. electrical bulkhead connect 8 �RVS high -voltage power wires to pass through the baseIRIPAR T Fig. 19. Check tightness of connector lock nuts before connecting elec- trical conduits. Field -supplied and field -installed liquid -tight conduit connec- tors and conduit may be attached to the connectors on the base - pan. Pull correctly rated high voltage and low voltage through appropriate conduits. Connect the power conduit to the internal disconnect (if unit is so equipped) or to the external disconnect (through unit side panel). A hole must be field cut in the main control box bottom on the left side so the 24-v control connec- tions can be made. Connect the control power conduit to the unit control box at this hole. UNITS WITHOUT THRU-BASE CONNECTIONS 1. Install power wiring conduit through side panel openings. Install conduit between disconnect and control box. 2. Install power lines to terminal connections as shown in Fig. 27. FIELD CONTROL WIRING The 48HC unit requires an external temperature control device. This device can be a thermostat (field -supplied) or a Premier- LinkTM controller (available as factory -installed option or as field -installed accessory, for use on a Carrier Comfort Net- work® or as a stand alone control) or the RTU Open Controller for Building Management Systems using non-CCN protocols (RTU Open controller is available as a factory -installed option only). THERMOSTAT Install a Carrier -approved accessory 2-stage thermostat accord- ing to installation instructions included with the accessory. Lo- cate the thermostat accessory on a solid wall in the conditioned space to sense average temperature in accordance with the thermostat installation instructions. If the thermostat contains a logic circuit requiring 24-v power, use a thermostat cable or equivalent single leads of different colors with minimum of seven leads. If the thermostat does not require a 24-v source (no "C" connection required), use a ther- mostat cable or equivalent with minimum of six leads. See Fig. 37 for typical low -voltage control connections. Check the ther- mostat installation instructions for additional features which might require additional conductors in the cable. For wire runs up to 50 ft (15 m), use no. 18 AWG (American Wire Gage) insulated wire (35°C minimum). For 50 to 75 ft (15 to 23 m), use no. 16 AWG insulated wire (35°C minimum). For over 75 ft (23 m), use no. 14 AWG insulated wire (35°C minimum). All wire sizes larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat. Unit without Thru-Base Connection Kit Pass the thermostat control wires through the hole provided in the end panel (see item "D" in the view labeled "LEFT" in Fig. 2 or Fig. 3); then feed the wires through the raceway built into the corner post to the control box. Pull the wires over to the ter- minal strip on the upper -left corner of the Central Terminal Board (CTB). See Fig. 38. NOTE: If thru-the-bottom connections accessory is used, refer to the accessory installation instructions for information on routing power and control wiring. 24 Typical Thermostat Connections CO -- - - - - - - - - -- GO -- - - - - - - - - -- W2 Wi 0/B------ - - - - -- (see Note) Yi------ - - - - -- O X C G W2 W1 Y2 Y1 R T-STAT Central Terminal Board X C G W2 W1 Y2 Y1 R & & F Note: Typical multi -function marking. Follow manufacturer's configuration instructions to select Y2. — — — Field Wiring Fig. 37 — Typical Low -Voltage Control Connections RACEWAY I® O ®® HOLE IN END PANEL (HIDDEN) Fig. 38 — Field Control Wiring Raceway HEAT ANTICIPATOR SETTINGS Set heat anticipator settings at 0.14 amp for the first stage and 0.14 amp for second -stage heating, when available. HUMIDI-MIZER® SYSTEM CONTROL CONNECTIONS Humidi-MiZer — Space RH Controller NOTE: The Humidi-MiZer system is a factory -installed option which is only available for units equipped with belt -drive motors. The Humidi-MiZer dehumidification system requires a field - supplied and installed space relative humidity control device. This device may be a separate humidistat control (contact clos- es on rise in space RH above control setpoint) or a combination thermostat-humidistat control device such as Carrier's Edge Pro Thermidistat with isolated contact set for dehumidification control. The humidistat is normally used in applications where a temperature control is already provided (units with Premier- Link"m control). To connect the Carrier humidistat (HL38MG029): 1. Route the humidistat 2-conductor cable (field -supplied) through the hole provided in the unit corner post. 2. Feed wires through the raceway built iQ� jC�i e* D (see Fig. 38) to the 24-v barrier locate o �¢ e the control box. The raceway provides thg Ltl -tqj�� j clearance between high -voltage and low-voltae Nos 3. Use wire nuts to connect humidistat cabl®�rtbw0' amcl=_s the low -voltage wiring (as shown in Fig. 41),96$AYMMg PNK to PNK and PNK/BLK to PNK/BLK. To connect the Thermidistat device (33CS2PPRH-01): 1. Route the Thermidistat multi -conductor thermostat cable (field -supplied) through the hole provided in the unit cor- ner post. 2. Feed wires through the raceway built into the corner post (see Fig. 38) to the 24-v barrier located on the left side of the control box. The raceway provides the UL-required clearance between high -voltage and low -voltage wiring. 3. The Thermidistat has dry contacts at terminals D1 and D2 for dehumidification operation (see Fig. 42). The dry con- tacts must be wired between CTB terminal R and the PNK/BLK lead to the LTLO switch with field -supplied wire nuts. Refer to the installation instructions included with the Carrier Edge® Pro Thermidistat device for more information. O yp 40 EDD � �o v10 EM EM EIII 00 c 01�A & EIII %RELA�HUMID- Fig. 39 — Accessory Field -Installed Humidistat �i �i o I1 F acal9mp 5 outside temp PIS i I I 0 Fig. 40 — Edge® Pro Thermidistat 25 :ECEIVED Jun 10 2021 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT Fig. 41 — Typical Humidi-MiZer® Adaptive Dehumidification System Humidistat Wiring 26 Edge Prociramable Thermostat Rc ----- Rh O W1 ---- G ----- Y2 ----- C ----- O/W2/B _ _ _ _ _ Yi ------ OAT O RRS O SRTN O HUM O D1 & ----- D2 ----- Vg O ----- - - - - - , I I T r- -------------------- !-- I I Humidi-MiZerT" FIOP ---�-PNK - -- M THERMOSTAT i LTLO PNK/_ _ ,. REHEAT i j BLK CONTROL i J1.1 i Unit CTB THERMOSTAT _-0 W1 _.o Y2 Y1 - -0 R *Connection not required. RECEIVED Jun 10 2021 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT Fig. 42 —Typical Rooftop Unit with Humidi-MiZer Adaptive Dehumidification System with Edge° Pro Thermidistat Device TYPICAL CONTROL WIRING DIAGRAMS See Fig. 43-50. 27 IV x W^ T M m I °Coil I I s44R I � ¢D L❑L❑RlD II s GY o lu NC 3R 1[ANINAI BOARD ❑ IA[oti CAP) F❑ O -I vx IIM DN 3vx PMA I UNIT ONLY 0 Q xACRDISx oNC,LTI CULOPNNfI COMPONENT ARRANGEMENT F O NOTES: 1, TERMINAL BOARD SCHEMATIC LAYOUT DOES NOT MATCH ACTUAL TERMINAL BOARD s TO SIMPLIFY CIRCUIT TRACES. CD 2. ENSURE DESIGNATED JUMPERS ON TERMINAL BOARD ARE CUT WHEN ADDING SMOKE DETECTORS, PHASE LOSS RELAY, OCCUPANCY AND REMOTE SHUTDOWN. 3. IFM OL MAY NOT BE USED ON ALL MODELS,IF NOT USED, THEN RED LEADS ARE CONNECTED TOGETHER. 3 NI10M[lER DjllUL SETTINGS: C) MINIMUM AC°S. Y1°°XECLOSEDECONOMIZER IFIOP/ACCESSORY) �Y MAX, MIDDLEPNN NT,ALPr C s[RRING VIO , LIT rt �ACCESSORYI Ib10LN �SFI RED' Tb RED Bf COM01TORA AFNOTF NLN BL BRN PO41110N POI x iY t0Y �.( BRN I 1 3 RfYOTE POl 1135 Olnl� p1 [YN Y Zd Avyn� RED BLN PNN' fIwIlII11 T Y10 POS 0 COIb1� WHT • IFIOPYACCE SSORYI NIN OPEN RN b V10 P IAO Sf HBO, It. RED B BLN I�IYi O 3 BRN IA O O iY OY BLJ �v} A01 DCY /� RA INOI USEDI 0 RED OAT IEYPP b AO pty 5 RA ENTNALPY SENSOR S0, 4 5EI YEL � x L71 3 A R LA INO1 OSF01 L�YI R[D SRSO SRFEz Y ITO EFIi YEL (Aftf SSORYI SR CAL x RATP FNTxALPT SENSOR 12.11 B�C BLU A ° BLN - BRN 'CONONI IFSPNOT[s: IF LA [SIGN °iivxA HAVEN? a[MovE S THE RED ER WAIT 5 a D ONLY WHEN USI No D EAENTIAX EL SUPv oxBULB. TAN GRA A° NSOR POWER CANNOT IYANI HE SLCONAANYEO[ I hmNE°FIELD INSTALLEDYREMOTE MINIMUM POSITION POT, ^ ORN NINE M BETWEEN AND ITT AND SET TO PWR EXHAUST coN?ROL MINIMUM POSITIONOT THE MINIMUM POSITION. ACCESSORY —INOT US[Dl BLN 1204.130Y1 B I[M AN loc ol r �..� im WW1 lTSLSI ' o� a W A G-R rAtt i, ER PLG-a UNIT PIG li 1 rf IOP/ACCv 1 NR FCB UOY IIFR P SAl l IDBAM ^ � 6 S YIO��BL II�J • IT 11 1� Im 0 10 ED f6i� i[L W B A 0LU d Im: A 3i3 A A BIN 5 I P C � d I 0RN R[D ' 4RA I S L 5 p 9 3 C-GRA—I aRN -R -� ' 12' 1A PNrc J L..—.. D. OPTIONS 04LT OR[ AED-> AEG- YAC CONTROL 208/230V, 460V, 575V J�YAE D BRO_CD )}BAN N[, I R7.5-10TON YAC (1 )COMPR T1 RYI NO❑ IUj�BLU 6TON YAC ( 1 )COMPR T2 FLj� EL IAOUBL[' INNj}PNN ALAAY ' RA-V Np 7 Rw))LGPA FROM POWER SCHEMATIC S.A, CONIAOL i IRAN OUT. DI ITo CUT C CDIS mPX. . ' ------- - jSHUYDOWN FIELD o� a"'P aBIx��L ti CONTROL- BI �n ROOP�BLu �L WIRING - - _ - - _ - m 01/ o„PI 1ULU A2� -DDC . • 1_ _ _ _ _ • _ _; o-%IA J YEo-T - _ L _ _ _ _ _ _ _J�}I1-��°a BAyNRA H A IN f BPy- _HPSI LIST JI"®L�F COMP2e L DLA e u eLu 1 ------� -Q3LT,J FQ /YlI ;,-' -i - - - - - --OSI, [7 O O W W WVW�� ffW � x7 U z d8TY5009R9 3 O M < L T 1'1 mn ITT Azo o M ITTITT0 zAo N j z O < I� ITT N m v M ohoji E o®o .TERMINAL BOARD. ® ® • COMPONENT ARRANGEMENT 0 �; } LTNL Dx NOTES: 1, TERMINAL BOARD SCHEMATIC LAYOUT DOES NOT MATCH ACTUAL TERMINAL evF sIMGL[ srAGE BOARD TO SIMPLIFY CIRCUIT TRACES. " 2. ENSURE DESIGNATED JUMPERS ON TERMINAL BOARD ARE CUT WHEN ADDING SMOKE DETECTORS, PHASE LOSS RELAY, OCCUPANCY AND REMOTE SHUTDOWN. UPS a-ANN/YEL� 3. FOR REHEAT UNITS, JUMPERS 5,6 8 7 ARE TO BE CUT, AI• IN_ rh 4. 1" OL IS NOT USED ON ALL MODELS. WHEN NOT USED, RED LEADS ARE CONNECTED TOGETHER, xs IGC - - - - - - - - - - - exNFLr gNr srsv DNLr �POTENTIOMETER DEFAULTS SETTIX41l• E NrDDrE LO ECONOMIZER IFIOP/ACCESSORY) NINNY PXYDDL STANDOFF ID,V rxxN NDOPP c N/TFL RAX.POs. E471ALPI SI SETTING PNN V10 Ir OVt IONS[ IFS I BLX IV RED RED [OYES 1R Tb1 BRN ECONOMIZER PNx ONLY l I VR,.T,NMI0i I, REYOi[ POi 1135 OAn I, P1 x P IV E"H$ => BRN }( Cql� YU RED PNx I , IACCFSSORYTI 11 T vlo ❑ NIN � Pos W b • RNT PL6-R ON STD Ir10P/ACCESSOPrI PN OPEN b PLB-R PL6R UNIT PL6 IRO Sf NSOR BLN �� RE ICI MAC RED ERN VFO T TOPY .ACCY)ECONOIIIZ[R • 2-POS ECONOMIZE PXX�BLU ERN II AO LJ• O 2V DV O 1 2 6' IDAMPER 1� I i VIOTBLU SAiJ RED OAi TEMP/ b DCY 5 GRA GRA INOT US[01 ; I� INTO IL SENSOR ED AO 50� 4 SE1 so 2v oY 1 TEL LA IDOL UlIOI 10 W 8 Im f6QhI ,o IEI so IEo A,CFSSORYI RAiIENIxALPY SENSOR SRC FREE OO SR # "on B�C Fr� Fr1� BLU YEL 2 I 0, I I N Yfl BLu . A D 3� ¢ OLD BRN Mi lei Ji � 1, I] 0LN BRN 0-GRA CRGRA 1 1 I DOTEsr RED I I� I� I RFD DDC OP110MS /r ,CONONIZER ONLY DxFX 620 OSNI TATI 31 RESISTOR D24 BU AN L U51„ D RF�iR IS g I ONIr ` I.. Y T E THE SEC FOR THE TAN FIELDIORMERD S LUNSUvT LAISOP SEPARATE r, cASNo? x1yE coNo.ASv[o THE TRANSFOxNFL GROUNO[U. P GRA ORN W I 5 �m 5 I y GRA ORN ` D NSrALLFO EMOTE NINNN POSITION PO �`` ' REMOVE BL WIRE NPFN B WEME P AND P, NS T, i0 PNR EXHAUST iROI NIX.MUN POSITION PET THE DIMDN OSIi IOF. - - ACCE560RY - - - - -INOi USED) I2' L _.. y� y� I g 1t PXn IY[L A BEEYON[PTI 2110 VIC P[D-"-BED SENSOR „ SNOiI XC { AJ IS FO D BRXjjI-BRX R-> 1}ORX L U-> BLU X[NS011�I WxTj)LmWNI ELj�-EL TROXBLEK PN- -m RAj)EGNA ALARY' NO RDj)`GRA 51100 l[rRDI r 1UP/ACC[ssaxr cB _R I ndNY RFD RN 6 C 4RF/1[l� BRN 0 C ON N FOR FIELD USE oa�aaaaa�aa� !SHBTDDWN FIELD CONTROTRO L WIRING E-CT} - - - •- - - _ cowl mpi xRN� _ 2 FQ _ - a ; Rx J Pq�PBLX i'STAT T LR i IS �FQ NN n .,,,� Q6 -j B C BRN 3 F - - mo[ov Iwxu xBPN y OECD} Z _ _ _ _ _ _ _ _ _ _ _ _ _ OWN BID C [LO2J SHl *1 SEC} - COMP2 1 {2 Bxx 1 - - iHERMO- . }) D - - -xIS1 - +LPV. �EQ STAT N BL. IL IN B *CD - -gIP RPq r Y-Y Y REHEAT _ _ _ _ _ _ _ _ n o e n n I,, V.© o .Y W Wi Ll T I 1?7I 60 CTB (SEE NOTE 1) YAC CONTROL 208/230V,460V,575V 6 TON MID TIER W/DEHUMI Q U CL:�-IOm m - DOT Azo 0 rn mvAp N ZAz j O <o N I� ITT rn v W 0 _:[Aii -[})F.�o—RAN E DM PON a� rRAN Rscxl:YxnlIA I IR RDY1 Gq Qri F(}>BAX RED y i '�I�9'i!Js RED BAN >j I (K AexNjJ-ter L iY ..I EL I FQ>}=VIO CAC BRN RIB} X,�y� V ED AXJ BRN I�3 Y I REDS-6 2 xI j}OIx� I�I LID NUMIDIMIZE ■ ® ■ K30 0R , J10.A IOY POWER G^fi[I HUMIDINIZER LLYI NA[RIDI �')XN[LT COMPONENT ARRANGEMENT II 91 3CxEYArlf FIOP I I J10.0 NOTES: 1. TERMINAL BOARD SCHEMATIC LAYOUT DOES NOT MATCH ACTUAL TERMINAL i>e oRN BOARD TO SIMPLIFY CIRCUIT TRACES. 2. ENSURE DESIGNATED JUMPERS ON TERMINAL BOARD ARE CUT WHEN ADDING SMOKE DETECTORS, PHASE LOSS RELAY AND RENOTE SHUTDOWN. 3. AED JUMPER WIRE MUST BE ADDED BETWEEN R-2 AND W1 FOR SPACE P TEMPERATURE MODE AND TEMPORARILY DURING 'ER'ICE EST MODE WHEN THE HEATERS NEED TO OPERATE. 4. IFM OL IS NOT USED ON ALL MODELS. IF NOT USED, THEN RED LEADS ARE J �d IQ3NTEL CONNECTED TOGETHER, REDJ wx, 7 ICT3 }j2. `` 11 OLU rRED _ Ir COZ FIOP/ I ^ N` > ^ I 1 F/ Ti ACCESSORY I BLx YR IG 191 I FROM PO TR BCxFMAIIC Wxr BC > 2 0 wxr ANi rCD 1[AUKGLIwYI IFC R[D Gp r 1EL BLU IAOJ [C R >> m IRA �ri0'�'f^�'iF}� PL ' I 11 RED}�� LC I 5.. IC > 5 y u `��lttLLLJJJYYi rITID0 P iC LG FCr?J )11 wxrb I C i P05 DAI BRED I FIOPERm i i 12 GRA LI.. _ MI J +>I� wxr--- e ° die i— MAIN BASE BOARD J6J7 c®�IRp ARC J4 o��GRA LJ°DNXRmBEm MAIN DIN BASE BOARD C�>3 B`D F� (MBB) BTI )I �DRN�C{L9 J 9 - ALT. o-�aRN CDi�BRN+--FT SGP.B BAN�KQb FT /RSJ,T��GAN�K� BGP.A J8G_AC 1B c� Ct}3 Ir� GRACE® � LZ ' '`iAXu=� BLx�E® uccssovr rEL�F® Dj RELj<E(T� REDj<EOD J8-B J J (j})}BRN-L�RI (I}j; OL B1 K,. RFD�E® N III a). 3 E K,.�RFD�Ep C?>]BR ^L [ BLx�E® C?> ET RFD BLx�EQ �b >BRN B[x�Ep �BLn�EOs J,81.A J3 (�)">RE YY C�>D-I C!}>}DRAIN tKl}30.1R0 Y— _ Y10 IMB_ HE -I IMIEL IAC[E550Yj1—PDINLR M &R il{01 EMDE, J IS N S[MSOR K 1 DIP I YI GDPPLr II a AYNMFA � J�IS W = S ` 'I IM SISY qL, LE� X % MO ATLU NN I "1, 10I MIDDLE 48HC 08, 09 208/23OV,46OV,575V COMFORTLINK CONTROL ON s m�iioR r lu` IUIf N � exX IJPx I[�[RA[_ .. BRA IKf �mm=m Nil 0©:3�N�OG�9�5 to �m e191011BEEN -min V ww wJ �� Bl Fw to BLY�(� xx ' Fp2i Ca}>I PLI: IAN RFD{ f I f AED(Cllll 11 r[L F BQ BRN (((�DJi ..... ......... .. OtY ILI w D--( i r fQ cglvz I BLx i G A RE Y .... o->I3 GAA F GRA R .... .. , a4 oaN 1 PNx ` J4 THE- J - PNx J J e<--m 2> RED I 1 FD TAT 1 X GRM i I [4RX� REC9 �J ->�BRN 1 F(•].......... ... .. ..Q� o aRX; Ylo; .. I I A�I.K-m I 1 - 1 U; GRA; A[D, vlo J7 EO j I CNb-i�-onx - - - — ........... N� J9 T Il. ; ;i N41[J �.,.....r-o�u�-, I �i Vl° I FQ .•.... .... C}it'rlo .. TxEIWSTAT FIELD I*(RING I JS CD> F BQ ICTBI YIDISIAI _ aLA A,GILT^� REHEAT/ ...............: Y- �Y •^ o •• CENTRAL `�sAl i r'0 'N CORiAOL I xP K�°Ri� N iERMI NAL BOARD aN�N BOARD LuE■ IECBI I._.. .. rNx�E■ FIOP/ ffi�;`-Nli J2 CT}»ACCY Pu , ;PLR ECONOMZ[RB::-j4ftLRENFIOP/ACC[SSOAY R[D�EQ J1 Q3}R[° J1:a'iiNrIII Nn EAV ECONOMIZER OAT u6M1 EC FIOCONO' MAIN BASE BOARD I ^[°�N W>r RLD 1> Y`N r _ FA ESSORY1 I 'lopORN UPC-POATJ J2 OR I I '%s[NIBFN J%0[MIxOY RED AFDC ,.. _i. _ .. TEL IFER[XTIAL eLn VFp FIOP [) BlU GRIN °ACLIBSCRY GRAB R L BLx 9N^ I ND VA.R[2L[ [WENCT DRIVE ®� I I tES M . I I IIWT . FG I I I MIFOA - e = ©R©_ RED 1 AED RFD© : I i^"I - 440M - ERX I BLx L01` J I wx 55 IT I.. I 1 I I ,BLx LDXD I .. — —Ep — — L" RLD BLx — .. .. y> • : y BLU IEprOR BLx PLB .. _ . wxr li i rFl RED BLx L.._.._.._I I�IBTMOD1331 m L rn mn m - Dm� Azo o rn zm0 N j z O <o m� 0) N rn v 48HC08, 09 COMFORTL I NK, f2 COMP2 COMFORTL I NK HUMIDIMIZER BLK II 21 RED TI POWER 208/230V, 460V 3 PH YEL 13 BRN T3 YEL IVED MAXIMUM WIRE YEL ORN DISCONNECT 05 SIZE 4 AWG BLK FIELD / SEE NOTEk5 BLK CI LI TI BLK— — — — — — —BLK I 21 BLK BLK TI �'"'2021 _ LK P WEI .I L2 T2 I I YEL J — — BEE 13 23 YEL YEL T3 OF DMONDS SUPPLr YEL BLU T2 NTSERVICES L3 T3 BLU— — YEL YEL-1BLK OFR ARTMENT EQUIP GR : FFFBLK 4 2 BLN OFMI L I, L2,L3 WIRES I BLK�RCAPI �FIOP FIOP I ARE FACTORY I/O MAXI/0 MAX WIRES WITH YELYELorWHT •WIAE SIZE WIRE SIZE HAC R/DISCONNECT LEENOTE 5 I SEENOTJ FIOPS BRN — EQUIP BILK OFM2 GR I YELorWHT 1)7 115V _ _ _ _ I BRN - FIELD BLK I r BLK BLK�BLK WHT FIOP I BLN 4BLKNON POWERED• YELYELo�W- ORNT OFMII GND-- _ COOUNIETNCEI CH CBRN OF BLK GRN/ I I YELorWHT OFM2I YEL B• BRN LU ORN I BLK SPEED COIL TEMP LI BLK BLK CONTROL SENSOR iHUMIDIMIZER FIOP, L2 e-U BLU LOW AMBIENT FIOP/ACCY A L3 YEL I �LI '—"—"—"—" I FCB PMR YEL 12 22 YEL 2 (ACCY)� — — FC 23 BLU 13 23 8LU 3 IFM BLK BLU I LK II 21 BLK II 21 BLN I BLK (08,09 HI STATIC ONLY) BILK F- BLK BLU ORN (OR) L—..—..—..—..—..—..—..------ — ; BLU YEL�YEL VI VFD V2 —YEL-0—YEL 2 IFTB LU BLU�BLU UI U2 BLU�BLU 3 IFMI BLK LK BLN�BLK WI W2 BLK-0—BLK I LK GRN/oGRN/ GRN/GRN/ VFD LK YEL YEL YEL YEL F OP BLK.—.. ..—..—..—..—..—..—..—..—.. IGC YEL OF FO-- BRN CAP 3 LI BLK YEL IDM CM BLK 460V VIO 208/2301 SEE CONTROL SCHEMATIC — GRN/ q i YEL 3 BLU BLU YEL YEL YEL YEL 2 BLK BLK BLK 1 BLK � PL30 460 230 200 C ' 460 230 200 C ERV TRAN2 L FIOP J TRANI 24V 24V 24V 24V TO 24V -RED BRN GRN/YEL NOTES: TO 24V -RED BRN GRN/YEL SCHEMATIC I, IF ANY OF THE ORIGINAL WIRE FURNISHED SCHEMATIC MUST BE REPLACEDT MUST BE REPLACED ' — " — - — -- — -- — — — " — " — " — WITH TYPE 90 C WIRE OR ITS EQUIVALENT. YEL YEL 2. COMPRESSOR AND FAN MOTORS ARE BLK rBLK THERMALLY PROTECTED. THREE PHASE YEL v MOTORS ARE PROTECTED AGAINST PRIMARY I BLK 460 230 200 C SINGLE PHASING CONDITIONS, 3. 208/230V UNIT TRAN IS WIRED FOR 230Y UNIT. 460 230 200 C TRAN4 IF UNIT IS TO BE RUN WITH 2O8V POWER 24V 24V SUPPLY DISCONNECT BLK WIRE FROM 230Y I TRANS TAP AND CONNECT TO 200V TAP. 24V BRN SCHEMATIC 0 24V-RED BRN GRN�YEL 4. USE COPPER, COPPER CLAD ALUMINUM OR TO 24V - RED GRN/YEL d7 ALUMINUM CONDUCTORS. SCHEMATIC I` � — HUMIDIMIZER POP 5. USE COPPER CONDUCTOR ONLY. L — •• — -- 48TM504019 A Fig. 46 — Typical 48HC ComfortLink Control Power Wiring Diagram with Optional Humidi-MiZer System (208/23OV, 460V - 3 Ph - 60 Hz shown) 31 YAC CONTROL 208/230V,460V,575V 6TON 2-STG COOLING 1-COMPR MID -TIER deiM500981 Y COMPONENT ARRANGEMENT r GOES , DR IDR IST SV L(F IOP IJ LIACCLi)� ONL YI /A PREMIER, INN ITT, IT F OP ® fY TDR DDC TERMINAL BOARD 5(ON ROMLv .Pxl Fmy au (API ® Off I DX lqx I PUX IyGALr Ji O _ _ S I ACCESSORY: 2 PNP L.. —..J m [Om®®DB l3 DR (� NOTE: I. TERMINAL BOARD SCHEMATIC LAYOUT DOES NOT MATCH ACTUAL TERMINAL BOARD TO SIMPLIFY CIRCUIT TRACES. 2. ENSURE DESIGNATED JUMPERS ON TERMINAL BOARD ARE CUT WHEN ADDING SMOKE DETECTORS, PHASE LOSS RELAY, OCCUPANCY AND REMOTE SHUTDOWN. 3. IFC OCCURS FOR 208/230 AND 460 VOLT UNIT WITH 3 PHASE INDOOR FAN MOTOR, AND ALL 515 YOLi WITHOUT DIRECT DRIVE INDOOR FAN MOTOR, M MARKED WIRES: ESL - ENTH SENSR LO (FROM TEAM DD ECON 7) Jd DISCRETE [�Y� 0-20mA J6 ANALOG YYYYYYYYYYYY XIy'Y YYYY'�'•NY•DI' N JIB }RFD 3 pD->}RLx J AED O C}3> J2 rF O ENT" Juu9 BLU DLN PfD DRM BLU DRN AID BLA L. ORN o-% �• 6 J7o-Dr EN(,1 COM S[T(rl POAOP IRO COM ORxI OUi SPACE TEMP /OFFSET ANALOG SENSORS Eat GIN TBI _0 %G RMT CMP a% �YiF- gRED OCCI SAFEI FSDI SFS/ FILTER/ CCN TO ,^ G YI Y2 WI W2 (,) I<oml '(3)] 1 AEO A srtL rtL BLU WxT A RLA 3 I��iv»l_! EO GAN Rlu PIA WxT }ORN }RFD F-Q3y-PNn }AEPREMIERLINK OPTION DLD F Q)j'-oAD } RED 8 I m �J •�m o = WIN SEC. � EN ['•"- rom F W A� n O OFSm ii SEE PONIED LABEL IN;p]_�IE�2,lwix,xf REF, o�irr•'unAEn ggo—J L— l BRX DN enN Lam.-: J I I I BRX I x0A FIELD I �B os = aaa� cri = i- ----------------- OAT FIELD CONTROL- oo�aaaaaaaaaaaaBLP�� BLx 0 AYB AIRING m DMPI I BRN I FQ ...... ... ..... - ..O}j LT wxT . ........ .. C�Iz DDC.... jT'6 TAT.:. .. .. ....:....... --: w OR d........:.. THIR oRN F5Q":"'�:".:..I .. Q"i l%-B.Lu ..... xP51' r ELE BQ. :: .IZ.'.LB!! Y2 ..................... C102/ BLD�Fp-.-;;-� .. COQ3 .dNPX . ....... ...........: ...: ...... .. A BL BRI FQ 5 I � .. ........ � � T:�:Y:�(`:�"-:�CENT.. 1 FQ REHEAT ................... (SEE MOTE I) IID-OCC ¢ S'I�_JII m w Cn Q o deTM002G89 - O m L T 1'1 m n m - � Dm� '.m o M z0 N j �Az O <o m� N m v T YAC CONTROL 208/230V,460V,575V 6TON 2-STG COOLING 1-COMPR MID -TIER W/DEHUMIDIFICATION 41 co I d81M50098d Y COMPONENT ARRANGEMENT PRENIERL INx F oP ooc TERMINAL BOARD r COFS , AF IOPI �'LlAccn� WI 111 AX . iAl (515V + oan n LED iDR , CDR YX Y 0 .OIIr' 1t IU rL, CI IL. J O iCCE550RYI 2 IpuXIIYOMYrJ1x' PNR L..—..J 5� NT ONLY CApI OR OFC Om0[Em©Ua® QIf910®®®®® nvlL. ' TORS IMPLIFY°CIRCUITmTRACES..... u.L.... m°�An nA.1unL ILnml nnL Dv°nu 2. ENSURE DESIGNATED JUMPERS ON TERMINAL 'CARD ARE CUT WHEN ADDING SMOKE DETECTORS, PHASE LOSS RELAY, OCCUPANCY AND REMOTE SHUTDOWN. 3. IFC OCCURS FOR 208/230 AND 460 VOLT UNIT WITH 3 PHASE INDOOR FAN MOTOR, AND ALL 575 VOLT WITHOUT DIRECT DRIVE INDOOR FAN MOTOR, MARKED WIRES: ESL - ENTH SENSR LO (FROM TERM DD ECON 7) 4 DISCRETE J5 0-20mA 6 ANALOG O 1II�o��m PREMIERLINK OPTION III m (i1 Y®i Y Y"J ao YFi _ 1:£i O• - •O 1.sl AGE I'AAM I' • . . '" vrn . ' ' "' BRr sIxGL[ s1AG[ Rs axAb o-cRAlrn� [LAY[ SEXSOR/�/ .... DAA OAX OROUAiiA' SISY ONLY �EOLx 6 KK�o, R[R-�aLIBI�R[D Tx xOOFF i��BLU 1 BAM�aLIIR BAX ECONOMIZER ACCESS ..�— — 'Ir lOvl ACCESSORY) R[P-UORX SAi I A[CYI [D�rNn OAi {�NI • Al 11 2-POS DAMPER OPI 11 s vNn{ Y{ BLxOBAX I—.. �RFSIStOR S � � S E OR I SOOS 13 O0 BLA 0 m I 0 CEO 9 1FL 2 A[ .. II = I� B 5� 5 0LA- e •a SENSOR @. ..A[D-._.1 I: m I 1' 1 IRA BIB R[' :i 'A— RED. m 4RA_ 33CSENTHSW L � L--r �9 R—R vLR SI 11 IR L R S� S 1� E PLB R PXX ENTHAL L IFIOP/ACCESSORY) PY I_ _ , PL6 •s © o 0 V © O O 0 U � � 0® O YET Up 1 '1 L = LM.4 FIELD oaaaaaaa�aa� CONTROL z WIND om i SDTAi ----- .-....--------------- I JYPI : �........ . . .. . �ECTJ • .... r ....:.......:..:........... . REHEAT ------------------ 4�4Y.Y. S 4 QTi�.'DII011 CT13 EE NOTE 11 Lun <n � m 0< v ZT Dm M A� zm0o N j z O <N m� m v V-1 YAC CONTROL 208/230V,460V,575V 6TON 2-STG COOLING 1-COMPR MID -TIER aL. RTU 0 al JI L[p fle.n — NDILDUE [R I F TOP/ACCESSORY � 0 IGC w .. �Lx u s. � enu O r: EEL] R,I Cp[ yp R� Li x 1 SIZE �- IFTBIL— O uu�ypevm D16C0f NECT/NACA ors COMPONENT ARRANGEMENT 1II SIZE UNIT Rv�oP311 X'TAxY II Yr" oFR (SISV N JI lf0 1.^' RTU OFen R� L❑:LIACCYI�LIf�_OP I��ONLY) 16[ - r'INoF FIOP/ACCESSORY a ..-.. J2 DDC 1It O T... .[ CAPI 13 PX IFYI iERYI NAL BOARD MC fi [I 1 If10 L PMR J .. w•L n.m Yrp lIOPI IACCYI 2 COMPRESSOR SHOWN xACRAD�OaIXECT COMPONENT ARRANGEMENT ALL EXCEPT II SIZE xN ><mm L "xLx NOTES: o I- - sTsr oNLr I. TERMINAL BOARp SCHEMATIC LAYOUT DOES NOT MATCH ACTUAL TERMINAL aNrrzL BOARD TO SIMPLIFY CIRCUIT TRACES. /}t C t. ENSURE D[SIGNATED JUMPERS ON T[RMI NAL BOARp ARE [UT WHEN ADDING ovaYRxD TxvU sTI Dort SMOXE DE E[i0R5. PXASE LOSS RELAI. OCCUPANCY AND AEINITf SHUTDOWN. r O 3. IFC OCCURS FOR 206/230 AND /60 AkT UNIT WITH 3 PXASE INDOOR FAN MOTORPH,AND ALL 515 VOLT WI TNOUr p:NEfl DRINE INDOOR FAN MOTOR. VFD 10 e U I d. FOR HIGHSPEEDLOW[A TESTING, CONNECT YELLOW d WHITE WIRES. o- L 5 PNPNxb (-0 W�Qj}BRN rDISCONNECT FOR NORMAL OPERATION. JEQyFDo-!-ORX O a IIAT ITES6 Jd IACCYI AEL,1iIVE o- NxFAN �r[L ACCESSORY rEL }r[LXUMDI rY o— X[r 2 BOARDC9-3 YFL eXe+ _ t • OAO •pT[1 I�wxr }Wxr L :SET SEN: J2D i JIS J r I6 PNx S (FIOPI r L'. 4W9 o-D6 R }PNx vr0 O OPTION NSB 2 x BLA 'wT .. — . - 2 d LOA) (OR) i Z mob' BlX(-Ra .. uC°'..l AED� R[D O ACCESS LSB I�j}RFD BLu E-eLU )AO 2 BPN� DID r Y d PORT cj*.pxT FLIe L 6 t 6FN YET SW3 Jlt JI o-jD..gRN ECONOMIZER fD � • aCOMM JI F PJ .. _ .. _F.a_ .. -. `1 T-55 O SPACE ♦DN'RX ACCESSORYI ACC FIr TOP/ L[[ESSORY SENSOR �)}PNx RFO-0OAX : OAT RID—PNx 1 1CV05 PNA. � r 1 3 X3 / I �j%�XX R CTB SAi BLA V DDAAM\.PER i YIO+ -JIJ I Wt �D-ifl I �BLApBPN — 61 6 GND �rCONO SOD jj1 RxRI+- Qj}REO Im E Axel-- - - - J ❑ 10 }BLU A[D : I MOTOR 0LX IO D D 121 - - Jtl - J ALLAYS Y2 I PF TRY a p 4 N r[L v, Bi485 ❑ ❑ ❑ ❑ fj}aM I 3 GRN PE S X YI PNR GAN-0aN+ 2 I 2 2 BLu J19 1 JS Jt �j}VTl>R ONLY I I o BLx NET• - -— ACCU� NET.__— 2 JII B �j}NA I ! SENSOR I. 3' Im6 3' 3 SHLD- -— 3 1 �>-PHA BLX IV-._.1J 96 95 9d 93 Q2 91 J14 5 A REI 'F GRA W:VWWW�V ;� �j}4RA I I=.. GPA q m S E GRA IOIOypC 133CSE NTH$W q� I 9i 9 t 3 d 5 6 1 0 J3 I ��--{tl : PNI 111 d-tOmA I L._ RAO4R 'z L.._.. z Iz III NUNI DISiAi ENTHAL PY PL6 R PL6 R PL6 aA�-3T{-GRA I (F IOP/ACCESSORYI — �IACCESSORY) L_ . I_ .. • LPNAA Do- TAN TAN L_ _ TDTCLL,5e„AP4T �- J ®' 0 ACC[SSOA�' PfOjrPF0 •� • fNAM4111 t01'IY1t i S N- I I RJ I6 XCY apMj}BAN Nj}ORN PPLY `fRJI NLUj�-NLU - T 'Xxlj}Xxl RJ�I6 NONs - r[ljjb-r[L TROaLfx- PXXj}PNx 'GRI-) GRA ALARM : NO - SMpxE CONTROL __MODULE_, GRkj}GRA FROM was eD N �Ju zz• ' _e3l "'� • UNIT •SHUTDOWN .................... ---------------------- A ONLY COFIELD NTROL - ao� Vim' BlX BLe-� WIRING L. AMB y OG..pL i U— BRN iEO...... .......L.; .� 12 I.T DDC i'STAi LxC�rl --- "`-' ..�.' .. Cl -- -- -- =---------------- --- �j3 R RN :. BXM GRN 4< - .. ......:......... Lu oRN_l<-cD ;• : O6 .LU ..... XPSI III/ BLUE J =� .. .............:. 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The W7220 can be configured with optional sensors. Fig. 51 — W7220 Economizer Module The W7220 economizer module can be used as a stand- alone economizer module wired directly to a commercial set -back space thermostat and sensors to provide outside air dry-bulb economizer control. The W7220 economizer module can be connected to op- tional sensors for single or differential enthalpy control. The W7220 economizer module provides power and communi- cations for the sensors. The W7220 economizer module automatically detects sen- sors by polling to determine which sensors are present. If a sensor loses communications after it has been detected, the W7220 economizer controller indicates a device fail error on its LCD. System Components The EconoMizer X system includes an economizer module, 20k mixed air sensor, damper actuator, and either a 20k out- door air temperature sensor or S-Bus enthalpy sensors. Economizer Module The module is the core of the EconoMizer X system. The module is mounted in the unit's control box, and includes the user interface for the system. The W7220 economizer module provides the basic inputs and outputs to provide simple economizer control. When used with the optional sensors, the economizer module provides more advanced economizer functionality. S-Bus Enthalpy Control Sensors The sensor is a combination temperature and humidity sen- sor which is powered by and communicates on the S-Bus. Up to three sensors may be configured with the W7220 economizer module. CO2 Sensor (optional) The sensor can be added for Demand Controlled Ventilation (DCV). Specifications W7220 Economizer Module The module is designed for use with 2 to 10 Vdc or bus communicating actuator. The module includes terminals for CO2 sensor, Mixed Air sensor, and an Outdoor Dry Bulb sensor. Enthalpy and other options are available with bus sensors. User Interface The interface provides status for normal operation, setup pa- rameters, checkout tests, and alarm and error conditions with a 2-line 16 character LCD display and four button R C E I V E D Electrical M • Rated Voltage — 20 to 30 Vac RMS, 50/60 Hz Jun 10 2021 • Transformer — 100 va maximum system input CITY o DMONDS • Nominal Power Consumption (at 24 Vac, 60 Ho#vEtob&ENT SERVICES VA without sensors or actuators DEPARTMENT • Relay Digital Output Rating at 30 Vac (maximum power from Class 2 input only) — 1.5A run: 3.5A inrush at 0.45PF (200,000 cycles) or 7.5A inrush at 0.45PF (100,000 cycles) • External Sensors Power Output — 21 Vdc f 5% at 48mA IMPORTANT: All inputs and outputs must be Class 2 wiring. Inputs Sensors NOTE: A Mixed Air (MA) analog sensor is required on all W7220 units; either an Outdoor Air (OA) sensor for dry bulb change over or an OA bus sensor for outdoor enthalpy change over is required in addition to the MA sensor. An additional Return Air (RA) bus sensor can be added to the system for dif- ferential enthalpy or dry bulb changeover. For differential dry bulb changeover a 20k ohm sensor is required in the OA and a bus sensor in the RA. DIP switch on RA bus sensor must be set in the RA position. Dry Bulb Temperature (optional) and Mixed Air (required), 20k NTC 2-wire (18 to 22 AWG) Temperature range —40 to 150°F (-40 to 65°C) Temperature accuracy -0°F/+2°F Temperature and Humidity, C7400S1000 (optional) S-Bus; 2-wire (18 to 22 AWG) Temperature: range —40 to 150°F (-40 to 65°C) Temperature accuracy -0°F/+2°F Humidity: range 0 to 100% RH with 5% accuracy. NOTE: Up to three (3) S-Bus sensors may be connected to the W7220 economizer module. For outdoor air (OA), return air (RA) and discharge (supply) air (DA). 4 Binary Inputs — 1-wire 24 Vac + common GND (see Fig. 52 for wiring details). 24 Vac power supply — 20 to 30 Vac 50/60Hz; 100 VA Class 2 transformer. Outputs Actuator Signal 2-10 Vdc; minimum actuator impedance is 2k ohm; bus two -wire output for bus communicating actuators. Exhaust fan, Y 1, Y2 and AUX 10 All Relay Outputs (at 30 Vac): Running: 1.5A maximum Inrush: 7.5A maximum Environmental Operating Temperature —40 to 150°F (-40 to 65°C). Exception of display operation down to —4°F with full recovery at —4°F from exposure to —40°F 36 Storage Temperature —40 to 150°F (-40 to 65°C) Shipping Temperature —40 to 150°F (-40 to 65°C) Relative Humidity 5% to 95% RH non -condensing Economizer Module Wiring Details Use Fig. 52 and Tables 7 and 8 to locate the wiring terminals for the Economizer module. NOTE: The four terminal blocks are removable. Slide out each terminal block, wire it, and then slide it back into place. I7 r M MAT MAT MA MA OAT OA OAT oA v c ' ACT 2.10 R • ACTCOM NA ACT 24V 50040839-001 50048848-002 Ra. G R�. A Fig. 52 — W7220 Wiring Terminals Table 7 — Economizer Module - Left Hand Terminal Blocks LABEL I TYPE I DESCRIPTION D Top Left Terminal Block C G MAT 20k NTC Mixed Air Tempera ure ensor MAT and COM (Polarity Insensitive Con Bottom Left Terminal Block IAQ 2-10 2-10 VDC Air Quality Sensor Input (e.g. CO2 sensor) IAQ COM COM Air Quality Sensor Common IAQ 24V 24 VAC Air Quality Sensor 24 VAC Source ACT 2-10 2-10 VDC Damper Actuator Output (2-10 VDC) ACT COM I COM Damper Actuator Output Common ACT 24v 124 VAC I Damper Actuator 24 VAC Source Sylk is a trademark of Honeywell International Inc. Table 8 — Economizer Module - Right Hand Terminal Blocks LABEL I TYPE I DESCRIPTION Top Right Terminal Blocks AUX2 1 24 VAC IN The first terminal is not used. Shut Down (SD) or HEAT (W) Conventional only OCC 24 VAC IN and Heat Pump Changeover (0-13) in Heat Pump mode. E-GND E-GND Occupied/Unoccupied Input EXH1 24 VAC OUT Exhaust Fan 1 Output Programmable: Exhaust fan 2 output AUX1 O 24 VAC or OUT ERV or System alarm output Bottom Riaht Terminal Blocks Y2-I 24 VAC IN Y2 in - Cooling Stage 2 Input from space thermostat Y2-0 24 VAC Y2 out - Cooling Stage 2 Output to OUT stage 2 mechanical cooling Y1-I 24 VAC IN Y1 in - Cooling Stage 2 Input from space thermostat Yi-O 24 VAC Y1 out - Cooling Stage 2 Output to OUT stage 2 mechanical cooling C COM 24 VAC Common R 24 VAC 24 VAC Power (hot) DES 37 S-Bus Sensor Wiring CO2 Sensor Wiring The labels on the sensors and controller are color coded for ease of installation. Orange labeled sensors can only be wired to orange terminals on the controller. Brown labeled sensors can only be wired to S-bus (brown) terminals. Use Fig. 53 and Table 9 to locate the wiring terminals for each S-Bus sensor. Use Fig. 53 and Table 9 to locate the wiring terminals for each enthalpy control sensor. ter Acso. ,b W m M.— .i �a = c�V E_ a DIP 3.c) SWITCH 0 LABEL M a DA = DIP SWITCHES (3) S-BUS --J S-BUS TERMINALS 2 PIN SIDE (1 AND 2) CONNECTOR Fig. 53 — S-Bus Sensor DIP Switches Table 9 — HH57AC081 Sensor Wiring Terminations TERMINAL TYPE DESCRIPTION NUMBER LABEL S-BUS 1 S-BUS S-BUS Communications (Enthalpy Control Sensor Bus) S-BUS 2 S-BUS S-BUS Communications (Enthalpy Control Sensor Bus) Use Fig. 53 and Table 10 to set the DIP switches for the desired use of the sensor. Table 10 — HH57AC081 Sensor DIP Switch USE DIP SWITCH POSITIONS FOR SWITCHES 1, 2, AND 3 1 2 3 DA OFF ON OFF RA ON OFF OFF OA OFF OFF OFF NOTE: When an S-Bus sensor is connected to an existing net- work, it will take 60 minutes for the network to recognize and auto -configure itself to use the new sensor. During the 60-minute setup period, no alarms for sensor fail- ures (except SAT) will be issued and no economizing function will be available. When using a CO2 sensor the black and brown common wires are internally connected and only one is connected to ""II°A`jQ�, COM" on the W7220. Use the power from the�l�-� WED er the CO2 sensor OR make sure the ground fo plies are common. See Fig. 54 for CO2 sensor wiringUn 10 2021 CO2SENSOR RED CITY OF EDMONDS L1 DEVELOPMENT SERVICES i— 24V BLACK (HOT) DEPARTMENT L L2 Q t I—+ YELLOW ANALOG OUT BROWN L— - ��__ ORANGE QPOWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. Fig. 54 — CO2 Sensor Wiring Interface Overview This section describes how to use the Economizer's user inter- face for: Keypad and menu navigation Settings and parameter changes Menu structure and selection User Interface The user interface consists of a 2-line LCD display and a 4-but- ton keypad on the front of the economizer controller. Keypad Use the four navigation buttons (see Fig. 55) to scroll through the menus and menu items, select menu items, and to change parameter and configuration settings. To use the keypad when working with menus: • Press the ♦ (Up arrow) button to move to the previous menu. • Press the ♦ (Down arrow) button to move to the next menu. • Press the ♦J (Enter) button to display the first item in the currently displayed menu. • Press the Q (Menu Up/Exit) button to exit a menu's item and return to the list of menus. 2 LINE LCD ML. -- -. (EXIT) SCROLL (ENTER) BUTTON UP/DOWN BUTTON BUTTONS Fig. 55 — W7220 Controller Navigation Buttons 38 To use the keypad when working with Setpoints, System and Advanced Settings, Checkout tests and Alarms: 1. Navigate to the desired menu. 2. Press the ♦J (Enter) button to display the first item in the currently displayed menu. 3. Use the ♦ and ♦ buttons to scroll to the desired parame- ter. 4. Press the ♦J (Enter) button to display the value of the currently displayed item. 5. Press the ♦ button to increase (change) the displayed parameter value. 6. Press the ♦ button to decrease (change) the displayed parameter value. NOTE: When values are displayed, pressing and holding the ♦ or ♦ button causes the display to automatically increment or decre- ment. 1. Press the *.J (Enter) button to accept the displayed value and store it in nonvolatile RAM. "CHANGE STORED" displays. 2. Press the ♦J (Enter) button to return to the current menu parameter. 3. Press the T (Menu Up/Exit) button to return to the previ- ous menu. Menu Structure Table 11 illustrates the complete hierarchy of menus and pa- rameters for the EconoMi$er® X system. The Menus in display order are: • STATUS • SETPOINTS • SYSTEM SETUP • ADVANCED SETUP • CHECKOUT • ALARMS IMPORTANT: Table 11 illustrates the complete hierar- chy. Your menu parameters may be different depending on your configuration. For example, if you do not have a DCV1�0CEIVE 2 sensor, then none of the DCV parameters appear and QWMI& 2 2 1 POS will display. If you have a CO2 sensor, t4_x M NDS MIN and DCV MAX will appear AND if yrmel s Rvici speed fan DCV MIN (high and low speed) andD"6NME 4T MAX (high and low speed will appear). NOTE: Some parameters in the menus use the letters MA or MAT, indicating a mixed air temperature sensor location before the cooling coil. This unit application has the control sensor locat- ed after the cooling coil, in the fan section, where it is designated as (Cooling) Supply Air Temperature or SAT sensor. Setup and Configuration Before being placed into service, the W7220 Economizer mod- ule must be set up and configured for the installed system. IMPORTANT: During setup, the economizer module is live at all times. The setup process uses a hierarchical menu structure that is easy to use. Press the ♦ and ♦ arrow buttons to move forward and backward through the menus and press the +J (Enter) but- ton to select and confirm setup item changes. Time -Out and Screensaver When no buttons have been pressed for 10 minutes, the LCD displays a screen saver, which cycles through the Status items. Each Status item displays in turn and cycles to the next item af- ter 5 seconds. 39 Table 11 — Menu Structure* PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENTt FIRST STAGE COOLING DEMAND (Y1—IN) LOU] ECONO AVAIL NO YES/NO YES = economizing available; the system can use outig cooling when required ECONOMIZING NO YES/NO FIRST STAGE COOLING RELAY OUTPUT YES = outside air being used for 1 stage cooling CITY OF EDA OCCUPIED DEVELOPMENT YES = OCC signal received from space thermostat or DEPARTM OCCUPIED NO YES/NO unitary controller YES = 24 Vac on terminal OCC NO = 0 Vac on terminal OCC COOL HEAT PUMP MODE HEAT PUMP N/A" HEAT Displays COOL or HEAT when system is set to heat pump (Non -conventional) FIRST STAGE COOLING DEMAND (Y1-IN) Y1—I signal from space thermostat or unitary controller for cooling stage COOL Y1—IN OFF ON/OFF 1. ON = 24 Vac on terminal Y1—I OFF = 0 Vac on terminal Y1A FIRST STAGE COOLING RELAY OUTPUT COOL Y1—OUT OFF ON/OFF Cool stage 1 Relay Output to stage 1 mechanical cooling (Y1—OUT terminal) SECOND STAGE COOLING DEMAND (Y2—IN) Y2-1 signal from space thermostat our unitary controller for second COOL Y2—IN OFF ON/OFF stage cooling. ON = 24 Vac on terminal Y2-1 OFF = 0 Vac on terminal Y2-1 SECOND STAGE COOLING RELAY OUTPUT COOL Y2—OUT OFF ON/OFF Cool Stage 2 Relay Output to mechanical cooling (Y2—OUT terminal) SUPPLY AIR TEMPERATURE, Cooling Mode MA TEMP _ _ _ F 0 to 140°F Displays value of measured mixed air from MAT sensor. STATUS Displays _ _ . _ F if not connected, short or out -of -range. DISCHARGE AIR TEMPERATURE, after Heating section Displays when Discharge Air sensor is connected and displays mea- DA TEMP F 0 to 140°F sured discharge temperature. Displays _ _ . _F if sensor sends invalid value, if not connected, short or out -of -range. OUTSIDE AIR TEMP OA TEMP F -40 to 140°F Displays measured value of outdoor air temperature. — — — Displays _ _ . _F if sensor sends invalid value, short or out -of -range. OUTSIDE AIR RELATIVE HUMIDITY OA HUM % 0 to 100% Displays measured value of outdoor humidity from -- CA sensor. Displays _ _% if not connected short, or out -of -range. RETURN AIR TEMPERATURE Displays measured value of return air temperature from RA TEMP _ _ . _ F 0 to 140°F RAT sensor. Displays _ _ . _ F if sensor sends invalid value, if not connected, short or out -of -range RETURN AIR RELATIVE HUMIDITY Displays measured value of return air humidity from RA HUM _ _ % 0 to 100 % RA sensor. Displays _ _% if sensor sends invalid value, if not connected, short or out -of -range SPACE/RETURN AIR CO2 IN CO2 _ _ _ ppm 0 to 2000 ppm Displays value of measured CO2 from CO2 sensor. Invalid if not con- nected, short or out -of -range DEMAND CONTROLLED VENTILATION STATUS DCV STATUS N/A ON/OFF Displays ON if above setpoint and OFF if below setpoint, and ONLY if a CO2 sensor is connected. DAMPER OUT 2.Ov 2.0 TO 1 O.Ov Displays voltage output to the damper actuator. ACT POS N/A 0 to 100 % Displays actual position of outdoor air damper actuator VED ?02 IONDS SERVICES ENT 40 Table 11 — Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT ACT COUNT N/A 1 to 65535 Displays number of times actuator has cycled. EN 1 cycles equals 180 deg. of actuator movement in KnI04. ACTUATOR N/A OK/Alarm (on Alarm Displays ERROR if voltage or torque is below actuator rdW 10 20, menu) EXH1 OUT OFF ON/OFF EXHAUST STAGE 1 RELAY OUTPUT SER DEVELOPMENT Output of EXH1 terminal: DEPARTMENT ON = relay closed OFF = relay open EXH2 OUT OFF ON/OFF EXHAUST STAGE 2 RELAY OUTPUT STATUS Output of AUX terminal; displays only if AUX = EXH2 (CONT) ERV OFF ON/OFF ENERGY RECOVERY VENTILATOR Output of AUX terminal; displays only if AUX = ERV MECH COOL ON 0 0, 1, or 2 Displays stage of mechanical cooling that is active. or HEAT STAGES ON Displays the stage of heat pump heating that is active. FAN SPEED N/A LOW or HIGH SUPPLY FAN SPEED Displays speed setting of fan on a 2-speed fan unit. W (HEAT ON) N/A ON/OFF HEAT DEMAND STATUS Displays status of heat demand on a 2-speed fan unit. 38 to 65°F; incre- SUPPLY AIR SETPOINT MAT SET 53F ment by 1 Setpoint determines where the economizer will modulate the OA damper to maintain the mixed air temperature. 45 to 80°F; COMPRESSOR LOW TEMPERATURE LOCKOUT LOW T LOCK 32F increment by 1 Setpoint determines outdoor temperature when the mechanical cooling cannot be turned on. Commonly referred to as the Compressor lockout. OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT to 80°F; incre- 48 48 to Setpoint determines where the economizer will assume outdoor air tem- DRYBLB SET 63F by 1 perature is good for free cooling; e.g.; at 63°F unit will economize at 62°F and below and not economize at 64°F and above. There is a 2°F deadband. ENTH CURVE ES3 ES1,ES2,ES3,ES4, ENTHALPY CHANGEOVER CURVE or ES5 Enthalpy boundary "curves" for economizing using single enthalpy. DEMAND CONTROLLED VENTILATION 500 to 2000ppm; Displays only if CO2 sensor is connected. Setpoint for Demand Control DCV SET 1100ppm increment by 100 Ventilation of space. Above the setpoint, the OA dampers will modulate open to bring in additional OA to maintain a space ppm level below the setpoint. MIN POS 2.8 V 2 to 10 Vdc VENTILATION MINIMUM POSITION Displays ONLY if a CO2 sensor is NOT connected. VENTMAX 2.8 V DCV MAXIMUM DAMPER POSITION With 2-speed fan units 2 to 10 Vdc Displays only if a CO2 sensor is connected. Used for Vbz (ventilation VENTMAX L (low speed fan) max cfm) Setpoint. Displays 2 to 10 V if <3 sensors (RA,OA, and MA). In and VENTMAX H (high AUTO mode dampers controlled by CFM. speed fan) settings are 100 to 9990 cfm; If OA, MA, RA, and CO2 sensors are connected and DCV CAL ENABLE required increment is set to AUTO mode, the OA dampers are controlled by CFM and dis- SETPOINTS by 10 plays from 100 to 9990 CFM. With 2-speed fan units VENT L (low speed fan) and MIN POS H (high 2 to 10 Vdc speed fan) settings are required. Default for VENTMAX L is 3.2V and VENTMAX H is 2.8V VENTMIN 2.25 V DCV MINIMUM DAMPER POSITION With 2-speed 2 to 10 Vdc or 100 to Displays only if a CO2 sensor is connected. Used for Ba (ventilation min fan units VENTMIN L (low 9990 cfm increment cfm) Setpoint. Displays 2 to 10 V if <3 sensors (RA, OA, and MA). Va is speed fan) and VENTMIN by 10 only set if DCV is used. This is the ventilation for less than maximum H (high speed fan) set occupancy of the space. In AUTO mode dampers controlled by CFM. 100 to 9990 cfm; If OA, MA, RA, and CO2 sensors are connected and DCV CAL ENABLE increment is set to AUTO mode, the OA dampers are controlled by CFM and dis- by 10 plays from 100 to 9990 CFM. With 2-speed fan units VENTMIN L (low speed fan) and MIN POS H 2 to 10 Vdc (high speed fan) settings are required. Default for VENTMIN L is 3.2V and VENTMIN H is 2.8V 0 to 50°F; increment ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR TEM- ERV OAT SP11 32°F by 1 PERATURE SETPOINT Only when AUX1 0 = ERV EXH1 SET EXHAUST FAN STAGE 1 SETPOINT With 2-speed fan units Exh1 0 to 100%;increment Setpoint for OA damper position when exhaust fan 1 is powered by the L (low speed fan) and Exh1 50 % by H (high speed fan) settings With 2-speed fan units Exhi L (low speed fan) and Exhi H (high speed are required fan) settings are required. Default for Exhi L is 65 % and Exhi H is 50 % EXH2 SET EXHAUST FAN STAGE 2 SETPOINT With 2-speed fan units Exh2 0 to 100%; increment Setpoint for OA damper position when exhaust fan 2 is powered by the L (low speed fan) and Exh2 75% b 1 y economizer. Only used when AUX1 0 is set to EHX2. H (high speed fan) settings With 2-speed fan units Exh2 L (low speed fan) and Exh2 H (high speed are required fan) settings are required. Default for Exh2 L is 80% and Exh2 H is 75% ED ?1 )s ✓ICES 41 Table 11 — Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT INSTALL 01/01/10 N/A Display order = MM/DD/YY KLCET Setting order = DID, MM, then YY. UNITS DEG F F or C Sets economizer controller in degrees Fahrenheit or Celsius J un 10 2 EQUIPMENT CONV Conventional or HP CONV = conventional; CJTYp� EDM1 HP O/B = Enable Heat Pump mode. Use AUX2 I for Heat P g�� RIP's thermostat or controller. DEPARTME See Menu Note 4. AUX2 IN W SD/W or HP(0)/ In CONV mode: HP(B) SO + Enables configuration of shutdown (default); W = Informs controller that system is in heating mode. NOTE: If using 2-speed fan mode, you must program CONV mode for W. Shutdown is not available in 2-speed fan mode. See Menu Note 7. In HP O/B mode: HP(0) = energize heat pump on Cool (default); HP(B) = energize heat pump on heat. FAN SPEED 2 speed 1 speed/2 speed Sets the economizer controller for operation of 1 speed or 2 speed supply fan. SYSTEM NOTE: 2-speed fan option also needs Heat (W1) programmed in AUX 2 SETUP In. See Menu Note 4. FAN CFM 5000cfm 100 to 15000 cfm; UNIT DESIGN AIRFLOW (CFM) increment by 100 Enter only if using DCVAL ENA = AUTO The value is on the nameplate label for the specific unit. AUX1 OUT NONE NONE Select OUTPUT for AUX1 0 relay ERV • NONE = not configured (output is not used) EXH2 • ERV = Energy Recovery Ventilator SYS • EXH2 = second damper position relay closure for second exhaust fan • SYS = use output as an alarm signal OCC INPUT INPUT or ALWAYS OCCUPIED MODE BY EXTERNAL SIGNAL When using a setback thermostat with occupancy out (24 vac), the 24 vac is input "INPUT' to the OCC terminal. If no occupancy output from the ther- mostat then change program to "ALWAYS" OR add a jumper from terminal R to OCC terminal. FACTORY DEFAULT NO NO or YES Resets all set points to factory defaults when set to YES. LCD will briefly flash YES and change to NO but all parameters will change to the factory default values. NOTE: RECHECK AUX2 IN and FANTYPE for required 2-speed values. MA LO SET 45°F 35 to 55°F; SUPPLY AIR TEMPERATURE LOW LIMIT Incremented by 10 Temperature to achieve Freeze Protection (close damper and alarm if tem- perature falls below setup value). FREEZE POS CLO CLO or MIN FREEZE PROTECTION DAMPER POSITION Damper position when freeze protection is active (closed or MIN POS). CO2 ZERO Oppm 0 to 500 ppm; CO2 ppm level to match CO2 sensor start level. Increment by 10 CO2 SPAN 2000ppm 1000 to 3000 ppm; CO2 ppm span to match CO2 sensor. Increment by 10 STG3 IDLY 2.Oh 0 min, 5 min, 15 min, COOLING STAGE 3 DELAY then 15 min intervals. Delay after stage 2 cool has been active. Turns on second stage of cool - Up to 4 hrs or OFF ing when economizer is first stage and mechanical cooling is second ADVANCED stage. Allows three stages of cooling, 1 economizer and 2 mechanical. OFF = no Stage 3 cooling SETUP SD DMPR POS CLO CLO or OPN Indicates shutdown signal from space thermostat or unitary controller. When controller receives 24 Vac input on the SD terminal in conventional mode, the OA damper will open if programmed for OPN and OA damper will close if programmed for CLO. All other controls, e.g., fans, etc. will shut off. DA LO ALM 45°F (7°C) 35 to 65°F; (2 to Used for alarm for when the DA air temperature is too low. Set lower range 18°C) Incremented of alarm, below this temperature the alarm will show on the display. by 5 deg. DA HI ALM 80°F (27°C) 70 to 180°F; (21 to Used for alarm for when the DA air temperature is too high. Set upper 82°C) Incremented range of alarm, above this temperature the alarm will show on the display. by 5 deg. DCVCAL ENA MAN MAN (manual) AUTO Turns on the DCV automatic control of the dampers. Resets ventilation based on the RA, OA, and MA sensor conditions. Requires all 3 RA, OA, and MA sensors. VED 021 ANDS ERVICES NT 42 Table 11 — Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGEAND NOTES VALUE INCREMENT MAT T CAL 0.0°F ±2.5°F SUPPLY AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calib ti r sensor. OAS T CAL 0.0°F ±2.5°F OUTSIDE AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration tGMW0 I DMON sensor. DEVELOPMENT SER CA H CAL 0% RH ±10% RH OUTSIDE AIR HUMIDITY CALIBRATION Allows for operator to adjust for an out of calibration humidity sensor. ADVANCED SETUP (CONT) RAT CAL 0.0°F ±2.5°F RETURN AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration temperature sensor. RA H CAL 0% RH ±10% RH RETURN AIR HUMIDITY CALIBRATION Allows for operator to adjust for an out of calibration humidity sensor. DA T CAL 0.0°F ±2.5°F DISCHARGE AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration temperature sensor. 2SP FAN DELAY 5 Minutes 0 to 20 minutes in 1 TIME DELAY ON SECOND STAGE ECONOMIZING minute increments When in economizing mode this is the delay for the high speed fan to try to satisfy the call for second stage cooling before the first stage mechan- ical cooling is enabled. DAMPER MINIMUM POSI- N/A N/A The checkout for the damper minimum position is based on the system. TION See table DAMPER OPEN N/A N/A Position damper to the full open position. Exhaust fan contacts enable during the DAMPER OPEN test. Make sure you pause in the mode to allow exhaust contacts to energize due to the delay in the system. DAMPER CLOSE N/A N/A Positions damper to the fully closed position CHECKOUT CONNECT Yi-0 N/A N/A Closes the Y1-0 relay (Y1-0) CONNECT Y2-0 N/A N/A Closes the Y2-0 relay (Y2-0) CONNECT AUX1-0 N/A N/A Energizes the AUX output. If Aux setting is: • NONE — not action taken • ERV — 24 Vac out. Turns on or signals an ERV that the conditions are not good for economizing but are for ERV operation. • SYS — 24 Vac out. Issues a system alarm CONNECT EXH1 I N/A I N/A I Closes the power exhaust fan 2 relay (EXH1) Alarms display only when they are active. The menu title "ALARMS(#)" includes the number of active alarms in parenthesis (). When using SYLK bus sensors, "SYLK' will appear on the screen, and when using 20k CA temperature sensors, "SENS 7 will appear on the screen MAT SENS ERR N/A N/A SUPPLY AIR TEMPERATURE SENSOR ERROR Mixed air sensor has failed or become disconnected - check wiring then replace sensor if the alarm continues. CO2 SENS ERR N/A N/A CO2 SENSOR ERROR CO2 sensor has failed, gone out of range or become disconnected - check wiring then replace sensor if the alarm continues. CA SYLK T ERR N/A N/A OUTSIDE AIR S-BUS SENSOR ERROR N/A Outdoor air enthalpy sensor has failed or become disconnected - check wiring then replace sensor if the alarm continues. CA SYLK H ERR N/A RA SYLK T ERR N/A N/A RETURN AIR S-BUS SENSOR ERROR ALARMS Return air enthalpy sensor has failed or become disconnected - check wiring then replace sensor if the alarm continues. RA SYLK H ERR N/A N/A DA SYLK T ERR N/A N/A DISCHARGE AIR S-BUS SENSOR ERROR Discharge air sensor has failed or become disconnected - check wiring then replace sensor if the alarm continues. CA SENS T ERR N/A N/A OUTSIDE AIR TEMPERATURE SENSOR ERROR Outdoor air temperature sensor has failed or become disconnected - check wiring then replace if the alarm continues. ACT ERROR N/A N/A ACTUATOR ERROR Actuator has failed or become disconnected - check for stall, over volt- age, under voltage and actuator count. Replace actuator if damper is movable and supply voltage is between 21.6 V and 26.4 V. Check actu- ator count on STATUS menu. FREEZE ALARM N/A N/A Check if outdoor temperature is below the LOW Temp Lockout on set - point menu. Check if Mixed air temperature on STATUS menu is below the Lo Setpoint on Advanced menu. When conditions are back in normal range then the alarm will go away. 'ED 21 DS VICES 43 Table 11 — Menu Structure* (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT SHUTDOWN ACTIVE N/A N/A AUX2 IN is programmed for SHUTDOWN and 24 V h I' AUX2 IN terminal. DMP CAL RUNNING N/A N/A DAMPER CALIBRATION ROUTINE RUNNING Jun 10 . If DCV Auto enable has been programmed, when the W7220 is complet- ing a calibration on the dampers, this alarm will display. Wait 1M11Vtbe EDP calibration is completed and the alarm will go away. Must b&WECWl\MAlT and RA sensors for DCV calibration; set up in the Advanced setalEPARTM menu. DA SENS ALM N/A N/A DISCHARGE AIR TEMPERATURE SENSOR ALARM ALARMS Discharge air temperature is out of the range set in the ADVANCED (CONT) SETUP Menu. Check the temperature of the discharge air. SYS ALARM N/A N/A When AUX1-0 is set to SYS and there is any alarm (e.g., failed sensors, etc.), the AUX1-0 terminal has 24 Vac out. ACT UNDER V N/A N/A ACTUATOR VOLTAGE LOW Voltage received by actuator is above expected range. ACT OVER V N/A N/A ACTUATOR VOLTAGE HIGH Voltage received by actuator is below expected range. ACT STALLED N/A N/A ACTUATOR STALLED Actuator stopped before achieving commanded position. LEGEND CLO — Compressor Lockout ERV — Energy Recovery Ventilator LCD — Liquid Crystal Display MA — Mixed Air MAT — Mixed Air Temperature N/A — Not Applicable OA — Outdoor Air OAT — Outdoor Air Temperature OCC — Occupied RA — Return Air RAT — Return Air Temperature RTU — Rooftop Unit SYS — System Table 11 illustrates the complete hierarchy. Your menu parameters may be different depending on your configuration. For example if you do not have a DCV (CO2) sensor, then none of the DCV parameters appear. t When values are displayed, pressing and holding the & or V but- ton causes the display to automatically increment. N/A = Not Applicable. tt ERV Operation: When in cooling mode AND the conditions are NOT OK for economizing - the ERV terminal will be energized. In the Heating mode, the ERV terminal will be energized when the CA is below the ERV OAT setpoint in the setpoint menu. VED 2021 4ONDS SERVICES ENT NOTES: 1. STATUS —> OCCUPIED — The factory -standard Occupancy sig- nal originates with a thermostat or other controller call for indoor fan operation at CTB terminal G. This signal passes through the Central Terminal Board's OCCUPIED jumper JMP1 to the ECONO connector and to the W7220's OCC input terminal. An external timeclock or relay is required to implement an Occupancy schedule on the economizer damper position. 2. STATUS—> MA TEMP, SETPOINTS—> MAT SET —The W7220 menu parameters and labels include designations MA, MAT and Mixed Air for the economizer cooling control sensor. On these roof- top units, the economizer control sensor is located downstream of the evaporator/indoor coil in the supply fan section where this sen- sor is designated as Supply Air Temperature (SAT) sensor. 3. SETPOINTS —> DRYBLB SET — This point is not displayed if a Return Air (differential) temperature sensor or an Outdoor Air enthalpy sensor is connected. 4. SYSTEM SETUP parameters must be configured as noted for 2- Speed unit operation: EQUIPMENT = CONV AUX2 I = W FAN SPEED = 2SPEED For damper minimum position settings and checkout menu readings, see Table 12. For dry bulb operation with a 1 speed indoor fan, with or without DCV, see Tables 13 and 14. For en- thalpy operation with a 1 speed indoor fan, with or without DCV, see Tables 15 and 16. For dry bulb operation with a 2 speed indoor fan, with or without DCV, see Tables 17 and 18. For enthalpy operation with a 2 speed indoor fan, with or with- out DCV, see Tables 19 and 20. Table 12 — Damper Minimum Position Settings and Readings on Checkout Menu DEMAND CONTROLLED VENTILATION FAN SPEED SETPOINTS CHECKOUT (CO2 SENSOR) NO 1 MIN POS VMAX—HS N/A N/A 2 MIN POS H VMAX—HS MIN POS L VMAX—LS 1 VENT MIN VMAX—HS VENT MAX VMAX—HS YES 2 VENT MIN H VMAX—HS VENT MAX H VMAX—LS VENT MIN L N/A VENT MAX L N/A 44 Table 13 — Dry Bulb Operation No DCV (CO2 Sensor) — 1 Speed Fan DEMAND OUTSIDE AIR FAN CONTROLLED GOOD TO Y1-1 Y24 SPEED Y1-O Y2-0 OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE OFF OFF HIGH Ov/Off Ov/Off MIN POS NONE NO ON OFF HIGH 24v/On Ov/Off MIN POS (JP.ffid10 20 ON ON HIGH I 24v/On 24v/On MIN POS C*AF EDMON OFF OFF HIGH Ov/Off Ov/Off MIN POS Dffi ENTSEP ARTMNONE ON OFF HIGH Ov/Off Ov/Off MIN POS to Full Closed to Full -Open YES Open ON ON HIGH 24v/On Ov/Off MIN POS to Full Open Closed to Full -Open *With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. Table 14 — Dry Bulb Operation with DCV (CO2 Sensor) — 1 Speed Fan DEMAND OUTSIDE AIR FAN CONTROLLED GOOD TO Yi-I Y24 SPEED Y1-O Y2-0 OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE OFF OFF HIGH Ov/Off Ov/Off VENTMIN Closed No ON OFF HIGH 24v/On Ov/Off VENTMIN Closed ON ON HIGH 24v/On 24v/On VENTMIN Closed Below CO2 Set OFF OFF HIGH Ov/Off Ov/Off VENTMIN Closed ON OFF HIGH Ov/Off Ov/Off VENTMIN to Closed to Full -Open Yes Full -Open ON ON HIGH 24v/On Ov/Off VENTMIN to Closed to Full -Open Full -Open OFF OFF HIGH Ov/Off Ov/Off VENTMIN to Closed VENTMAX No ON OFF HIGH 24v/On Ov/Off VENTMIN to Closed VENTMAX ON ON HIGH 24v/On 24v/On VENTMIN to Closed VENTMAX Above CO2 Set OFF OFF HIGH Ov/Off Ov/Off VENTMIN to Closed VENTMAX Yes ON OFF HIGH Ov/Off Ov/Off VENTMIN to Closed to Full -Open Full -Open ON ON HIGH 24v/On Ov/Off VENTMIN to Full -Open Closed to Full -Open *With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. Table 15 — Enthalpy Operation No DCV (CO2 Sensor) —1 Speed Fan DEMAND OUTSIDE AIR FAN CONTROLLED GOOD TO Y1-1 Y24 SPEED Y1-O Y2-0 OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE OFF OFF HIGH Ov/Off Ov/Off MIN POS Closed NONE NO ON OFF HIGH 24v/On Ov/Off MIN POS Closed ON ON HIGH 24v/On 24v/On MIN POS Closed OFF OFF HIGH Ov/Off Ov/Off MIN POS Closed ON OFF HIGH Ov/Off Ov/Off MIN POS to Full Closed to Full -Open NONE YES Open ON ON HIGH 24v/On Ov/Off* MIN POS to Full Closed to Full -Open I Open *With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. 'ED 21 IDS .VICES 45 Table 16 — Enthalpy Operation with DCV (CO2 Sensor) —1 Speed Fan DEMAND OUTSIDE AIR FAN CONTROLLED GOOD TO Y1-I Y2-1 SPEED Yi-O Y2-0 OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE OFF OFF HIGH Ov/Off Ov/Off VENTMIN No ON OFF HIGH 24v/On Ov/Off VENTMIN clo,4Un 10 ON ON HIGH 24v/On 24v/On VENTMIN CIOSedTY OF ED Below COz Set OFF OFF HIGH Ov/Off Ov/Off VENTMIN Close DEPARTM Yes ON OFF HIGH Ov/Off Ov/Off VENTMIN to Full -Open Closed to Full -Open ON ON HIGH 24v/On Ov/Off VENTMIN to Full -Open Closed to Full -Open OFF OFF HIGH Ov/Off Ov/Off VENTMIN to Closed VENTMAX No ON OFF HIGH 24v/On Ov/Off VENTMIN to Closed VENTMAX ON ON HIGH 24v/On 24v/On VENTMIN to Closed VENTMAX Above COz Set OFF OFF HIGH Ov/Off Ov/Off VENTMIN to Closed VENTMAX Yes ON OFF HIGH Ov/Off Ov/Off VENTMIN to Full -Open Closed to Full -Open ON ON HIGH 24v/On Ov/Off' VENTMIN to Closed to Full -Open Full -Open *With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. Table 17 — Dry Bulb Operation No DCV (CO2 Sensor) — 2 Speed Fan VED 2021 MONDS SERVICES ENT DEMAND CONTROLLED VENTILATION (DCV) OUTSIDE AIR GOOD TO ECONOMIZE Y1-1 Y24 FAN SPEED Y1-0 Y2-0 OCCUPIED UNOCCUPIED NONE NO OFF OFF LOW Ov/Off Ov/Off MIN POS Closed ON OFF LOW 24v/On Ov/Off MIN POS Closed ON ON HIGH 24v/On 24v/On MIN POS Closed NONE YES OFF OFF LOW Ov/Off Ov/Off MIN POS Closed ON OFF LOW Ov/Off Ov/Off MIN POS to Full Open Closed to Full -Open ON ON HIGH 24v/0n Ov/Off" MIN POS to Full Open Closed to Full -Open "With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. 46 Table 18 — Dry Bulb Operation with DCV (CO2 Sensor) — 2 Speed Fan DEMAND OUTSIDE AIR FAN CONTROLLED GOOD TO Y1-1 Y2-1 SPEED Y1-O Y2-0 OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE OFF OFF LOW Ov/Off Ov/Off VENTMIN No ON OFF LOW 24v/On Ov/Off VENTMIN CJEMdl ON ON HIGH 24v/On 24v/On VENTMIN CI OFF OFF LOW Ov/Off Ov/Off VENTMIN D€f'§�@HMENT SER Below COz Set ON OFF LOW Ov/Off Ov/Off VENTMIN to Closed to Full -Open Yes Full -Open ON ON HIGH 24v/On Ov/Off VENTMIN to Closed to Full -Open Full -Open OFF OFF LOW Ov/Off Ov/Off VENTMIN to Closed VENTMAX No ON OFF LOW 24v/On Ov/Off VENTMIN to Closed VENTMAX ON ON HIGH 24v/On 24v/On VENTMIN to Closed Above COz Set VENTMAX OFF OFF LOW Ov/Off Ov/Off VENTMIN to Closed VENTMAX Yes ON OFF LOW Ov/Off Ov/Off VENTMIN to Closed to Full -Open Full -Open ON ON HIGH 24v/On Ov/Off` VENTMIN to Full -Open Closed to Full -Open 'With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. Table 19 — Enthalpy Operation No DCV (CO2 Sensor) — 2 Speed Fan ED 21 DS VICES DEMAND OUTSIDE AIR FAN CONTROLLED GOOD TO Y1-1 Y24 SPEED Y1-0 Y2-0 OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE OFF OFF LOW Ov/Off Ov/Off MIN POS Closed NO ON OFF LOW 24v/On Ov/Off MIN POS Closed NO COz SENSOR ON ON HIGH 24v/On 24v/On MIN POS Closed OFF OFF LOW Ov/Off Ov/Off MIN POS Closed YES ON OFF LOW Ov/Off Ov/Off MIN POS to Full Open Closed to Full -Open ON ON HIGH 24v/On Ov/Off" MIN POS to Full Open Closed to Full -Open *With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. Table 20 — Enthalpy Operation with DCV (CO2 Sensor) — 2 Speed Fan DEMAND OUTSIDE AIR FAN CONTROLLED GOOD TO Y1-1 Y2-1 SPEED Y1-O Y2-0 OCCUPIED UNOCCUPIED VENTILATION (DCV) ECONOMIZE OFF OFF LOW Ov/Off Ov/Off VENTMIN Closed No ON OFF LOW 24v/On Ov/Off VENTMIN Closed ON ON HIGH 24v/On 24v/On VENTMIN Closed Below CO2 Set OFF OFF LOW Ov/Off Ov/Off VENTMIN Closed ON OFF LOW Ov/Off Ov/Off VENTMIN to Closed to Full -Open Yes Full -Open ON ON HIGH 24v/On Ov/Off VENTMIN to Closed to Full -Open Full -Open OFF OFF LOW Ov/Off Ov/Off VENTMIN to Closed VENTMAX No ON OFF LOW 24v/On Ov/Off VENTMIN to Closed VENTMAX ON ON HIGH 24v/On 24v/On VENTMIN to Closed Above CO2 Set VENTMAX OFF OFF LOW Ov/Off Ov/Off VENTMIN to Closed VENTMAX Yes ON OFF LOW Ov/Off Ov/Off VENTMIN to Full -Open Closed to Full -Open ON ON HIGH 24v/On Ov/Off' VENTMIN to Closed to Full -Open Full -Open *With stage 3 delay (STG3 DLY) in Advanced setup menu, second stage of mechanical cooling Y2-0 can be turned on after the delay if the calls for Y1-I and Y2-1 have not been satisfied. 47 �UAL ENTHALPY ��,HIGH LIMIT SINGLE ENTHALPY ' IVED } P2(T,RH) ' JGn 0 2021 p I,�TY EDMONDS DEVJLOP ENT SERVICES _ .DE RTMENT w P1 F (T,RH) J 0 m ' a ES5 1 ES4 I ES3 I ES2 I ES1 J HL TEMPERATURE Fig. 56 — Single Enthalpy Curve Boundaries Table 21 — Single Enthalpy and Dual Enthalpy High Limit Curves ENTHALPY CURVE TEMP. DRY BULB (F) TEMP. DEWPOINT (F) ENTHALPY (btu/Ib/da) POINT P1 POINT P2TY TEMP. (F) IDITY (HU,MRH) TEMP. (F) MIDI ( HUMIDITY ES1 80 60 28.0 80 36.8 66.3 80.1 ES2 75 57 26.0 75 39.6 63.3 80.0 ES3 70 54 24.0 70 42.3 59.7 81.4 ES4 65 51 22.0 65 44.8 55.7 84.2 ES5 60 48 20.0 60 46.9 51.3 88.5 H L 86 66 32.4 86 38.9 72.4 80.3 Enthalpy Settings When the OA temperature, enthalpy and dew point are below the respective setpoints, the Outdoor Air can be used for econ- omizing. Figure 56 shows the new single enthalpy boundaries in the W7220. There are 5 boundaries (setpoints ES1 through ES5), which are defined by dry bulb temperature, enthalpy and dew point. Refer to Table 21 for ENTH CURVE setpoint values. The W7220 calculates the enthalpy and dew point using the OA temperature and humidity input from the OA enthalpy sen- sor. When the OA temperature, OA humidity and OA dew point are all below the selected boundary, the economizer sets the economizing mode to YES, economizing is available. When all of the OA conditions are above the selected bound- ary, the conditions are not good to economize and the mode is set to NO. Figure 56 shows the 5 current boundaries. There is also a high limit boundary for differential enthalpy. The high limit bound- ary is ES1 when there are no stages of mechanical cooling en- ergized and HL (high limit) when a compressor stage is ener- gized. Table 21 provides the values for each boundary limit. Two -Speed Fan Operation The W7220 controller has the capability to work with a system using a 2-speed supply fan. The W7220 does not control the supply directly but uses the following input status to determine the speed of the supply fan and controls the OA damper to the required position, see Table 22. Table 22 — Fan Speed STATE FAN SPEED OCC Low Y1 Low Y2 High W High The W (heating mode) is not controlled by the W7220 but it re- quires the status to know where to position the OA damper for minimum position for the fan speed. The 2 speed fan delay is available when the system is pro- grammed for 2 speed fan (in the System Setup menu item). The 2 speed fan delay is defaulted to 5 minutes and can be changed in the Advanced Setup menu item. When the unit has a call for Y 1 In and in the free cooling mode and there is a call for Y2 In, the 2-speed fan delay starts and the OA damper will modulate 100% open, the supply fan should be set to high speed by the unit controller. After the delay one of two actions will happen: • The Y2 In call will be satisfied with the damper 100% open and fan on high speed and the call will turn off OR • If the call for additional cooling in the space has not been satisfied then the first stage of mechanical cooling will be enabled through Y 1 Out or Y2 Out. Checkout Inspect all wiring connections at the economizer module's ter- minals, and verify compliance with the installation wiring dia- grams. For checkout, review the Status of each configured parameter and perform the Checkout tests. NOTE: For information about menu navigation and use of the keypad see Interface Overview on page 38. 48 Troubleshooting Failure to follow this warning could result in personal inju- ry, property damage, or death. Before performing service or maintenance operations on unit, always turn off main power switch to unit and install lock(s) and lockout tag(s). Unit may have more than one power switch. Ensure electrical service to rooftop unit agrees with voltage an amperage listed on the unit rating plate. If any wiring changes are required, first be sure to remove power from the Economizer module before starting work. Pay particular attention to verifying the power connection (24 Vac). Power Up After the W7220 module is mounted and wired, apply power. Initial Menu Display On initial start up, Honeywell displays on the first line and economizer W7220 on the second line. After a brief pause, the revision of the software appears on the first line and the second line is blank. Power Loss (Outage or Brownout) All setpoints and advanced settings are restored after any pow- er loss or interruption. NOTE: All settings are stored in non-volatile flash memory. Status Use the Status menu (see Table 11) to check the parameter val- ues for the various devices and sensors configured. NOTE: For information about menu navigation and use of the keypad see Interface Overview on page 38. Checkout Tests Use the Checkout menu (see Table 11) to test the damper oper- ation and any configured outputs. Only items that are config- ured are shown in the Checkout menu. NOTE: For information about menu navigation and use of the keypad see Interface Overview on page 38. To perform a Checkout test: 1. Scroll to the desired test in the Checkout menu using the ♦ and ♦ buttons. 2. Press the 4..J (Enter) button to select the item. RUN? appears. 3. Press the +_I (Enter) button to start the test. The unit pauses and then displays IN PROGRESS. When the test is complete, DONE appears. 4. When all desired parameters have been tested, press the f) (Menu Up/Exit) button to end the test. The Checkout tests can all be performed at the time of installa- tion or at any time during the operation of the system as a test that the system is operable. 8 CAUTION Failure to follow this caution may result in damage to equipment. Be sure to allow enough time for compressor startup and shutdown between checkout tests so that you do not short -cycle the compressors. Alarms The economizer module provides alarm messages that display on the 2-line LCD. R�mCtef �I/ED NOTE: Upon power up, the module waits 6 e ore checking for alarms. This allows time for all the codQpr44Dd2W 1 es (e.g. sensors, actuator) to become operational. Tb&e Wp,&�% the SAT sensor which will alarm immediately. DEVELOPMENT SERVICES If one or more alarms are present and there has been no Keypad activity for at least 5 minutes, the Alarms menu displays and cycles through the active alarms. You can also navigate to the Alarms menu at any time. Clearing Alarms Once the alarm has been identified and the cause has been re- moved (e.g. replaced faulty sensor) the alarm can be cleared from the display. To clear an alarm, perform the following: 1. Navigate to the desired alarm. 2. Press the ♦J (Enter) button. ERASE? displays. 3. Press the +J (Enter) button. ALARM ERASED displays. 4. Press the @D (Menu Up/Exit) button to complete the action and return to the previous menu. NOTE: If the alarm still exists after clearing it, it is redisplayed within 5 seconds. ®CAUTION Failure to follow this caution may result in damage to equipment. Be sure to allow enough time for compressor start-up and shutdown between checkout tests so that you do not short -cycle the compressors. Smoke Detectors Smoke detectors are available as factory -installed options on 48HC models. Smoke detectors may be specified for Supply Air only or for Return Air without or with economizer or in combination of Supply Air and Return Air. All components necessary for operation are factory -provided and mounted. The unit is factory -configured for immediate smoke detector shut- down operation; additional wiring or modifications to unit ter- minal board may be necessary to complete the unit and smoke detector configuration to meet project requirements. Units equipped with factory -optional Return Air smoke detec- tors require a relocation of the sensor module at unit installa- tion. See Fig. 57 for the as shipped location. COMPLETING INSTALLATION OF RETURN AIR SMOKE SENSOR 1. Unscrew the two screws holding the Return Air Smoke De- tector assembly. See Fig. 58, Step 1. Save the screws. 2. Turn the assembly 90 and then rotate end to end. Make sure that the elbow fitting is pointing down. See Fig. 58, Step 2. 3. Screw the sensor and detector plate into its operating posi- tion using screws from Step 1. See Fig. 58, Step 3. 4. Connect the flexible tube on the sampling inlet to the sam- pling tube on the basepan. 49 Fig. 57 — Return Air Smoke Detector, Shipping Position ADDITIONAL APPLICATION DATA — Refer to the Appli- cation Data sheet titled Factory Installed Smoke Detectors for Small and Medium Rooftop Units 2 to 25 Tons for discussions on additional control features of these smoke detectors including multiple unit coordination. STEP 1 0 0 p e o 0 STEP 2 Staged Air Volume (SAVTM) with Variable Fre- quency Drive (Factory Option) For details on operating 48HC 2 stage cooling units equipped with the factory -installed Staged Air Volume CfmWE D the Variable Frequency Drive (VFD) Installa ' �[ Troubleshooting Supplement. Jun 10 2021 ComfortLink Control (Factory Option) CITY OFEDMONDS EL M NT SERVICES For details on operating 48HC units equipped wit e T installed ComfortLink controls option, refer to Controls, Start - Up, Operation and Troubleshooting for 48/50HC 04-28 Single Package Rooftop Unit with ComfortLink Controls. PremierLinkTM Controller (Factory Option) For details on operating 48HC units equipped with the factory - installed PremierLink controller option, refer to the Premier - Link Retrofit Rooftop Controller Version 3.x Installation, Start -Up, and Configuration instructions manual. RTU Open Controller For details on operating 48HC units equipped with the factory - installed RTU Open controller option, refer to the Factory -In- stalled Option RTU Open Multi -Protocol Controller Controls, Start -Up, Operation and Troubleshooting manual. Controller Options LOW AMBIENT CONTROL (FACTORY OPTION) If the unit comes with Electro-Mechanical (EM) control, then no adjustment is necessary. If the unit comes with PremierLinkTM or RTU Open controller option, then refer to its installation control manual for details on adjusting "Cooling Lock -Out' setting and configure for your specific job requirements. Fig. 58 — Completing Installation of Return Air Smoke Sensor STEP 3 50 -------- —.. --- — --— POTENT IOMEiER DEFAULTS SETTINGS: •POWER E%H MIDDLE ECONOMIZER (FIOP/ACCESSORY) MINIMUM POS. FULLY CLOSED DCV MAT. MDDLE DC SET MIDDLE PNK ;ENTHALPY C SETTING VIO BLK RED RED BLK ^.. I N1 �b EXH �SEi iR TA1 b ECONOMIZER MOTOR ' REMOTE MIN p POSITION POT eLn 2V BRN BRN 2 1 3 REMOTE POT (135 Ohml �..(oV �� RED P1 P EXH r /l 2/ 2,% BLK PNK. L..—..—..—I C1 IN HOC b WHT i RECEIVED Jun 10 2021 CITY OF EDMONDS DEVELOPMENT SERVICES T VIO L'TJ POS - FLY FOR STD DEPARTMENT (FLOP/ACCESSORY)I PNK OP b PL6-R PL6-R UNIT PL6 IAO SENSOR 2 8 BLN OCV MAX RED BRN VIO C .ACCY)/ ACCYI :ECONOMIZER ECONOMIZER PNX BLU BR IAO O 2V 10V O •2-POS DAM 61 DAMPER I SAT L..—..—.I 1 T BLU' A01 �.( DCV — 1 2 GRA I 1� 61 B 6 VIO BLU .. J OAT TEMP/ bAD DCV 6 GRA INOT USED) ;O RED ENTHALPY SENSOR SOS SET INOT USED) 18 m 11 11 11 SO 2V 10V 3 4 ORN hW 0 0 E0 RED SRC CFREE OOL # ETD EFI M LA YEL T YEL BLU 'RAT/ENiHALPS5SE)NSOR; 620i2 31 21 2' t BLU A�D BLrc m - ILK _S 1 S 3 _..— ..— BRN O BRN 1 I I I 1<4 ECONOMIZER NOTES: RED . 1 RED • 1. "' OHM, 1 WATT 6T RESISTOR SHOULD BE REMOVED ONLY WHEN USING DI FFERENi]AL ENTHALPY OR DRY BULB. 2. IF A SEPARATE FIELD SUPPLIED 21Y TRANSFORMER IS USED FOR THE HAVE THE TAN GRA 5 656L 61 5 GAA C-GRA IRO SENSOR POWER SUPPLY, IT CANNOT SECONDARY OF THE TRANSFORMER GROUNDED. 3. FOR FIELD INSTALLED REMOTE MINIMUM POSITION POT, AND AND ORN BI R 9 9 ORN O-GRA-S REMOVE BLACK WIRE JUMPER CONTROL MINIMUM POSITION BETWEEN P P1 SET POT TO THE MINIMUM POSITION. TO PWR EXHAUST ACCESSORY ACCESSORY (NOT USED) 12 PNK— I L.. _.. 12 DDC OPTIONS) oNLr \` Unit Without Economizer or Economizer 2 Position Damper 2 Position Damper Fig. 59 — EconoMi$er®IV Wiring Step 13 — Adjust Factory -Installed Options SMOKE DETECTORS Smoke detector(s) will be connected at the Controls Connec- tions Board, at terminals marked "Smoke Shutdown." Cut jumper JMP 3 when ready to energize unit. ECONOMISER IV OCCUPANCY SWITCH Refer to Fig. 59 for general EconoMi$er IV wiring. External occupancy control is managed through a connection on the Controls Connections Board. If external occupancy control is desired, connect a time clock or remotely controlled switch (closed for Occupied, open for Unoccupied sequence) at terminals marked OCCUPANCY. Cut jumper JMP 2 to complete the installation. Step 14 — Install Accessories Available accessories include: • Roof Curb • Thru-base connection kit (must be installed before unit is set on curb) • LP conversion kit • Flue discharge deflector • Manual outside air damper • Two -Position motorized outside air damper • EconoMi$er IV (with control) • EconoMi$er2 (without control/for external signal) • Power Exhaust • Differential dry-bulb sensor (EconoMi$er IV) • Outdoor enthalpy sensor • Differential enthalpy sensor • CO2 sensor • DDC interface (PremierLinkTM controller) • Louvered hail guard • Motormaster® head pressure controls • Phase monitor control • Energy Recovery Ventilator (ERV) Refer to separate installation instructions for information on in- stalling these accessories. Step 15 — Check Belt Tension Measure the belt span length as shown in Fig. 60. Calculate the required deflection by multiplying the belt span length by 1/64. For example, if the belt span length is 32 inches: 32 x 1/64 = 1/2 inch deflection. BELT FORCE — DEFLECTION METHOD Check the belt tension with a spring -force belt force deflection gauge (available from drive belt manufacturer). 1. Place a straightedge along the belt between the two pul- leys. Measure the distance between the motor shaft and the blower shaft. 2. Set the tension gauge to the desired tension (see Table 1 in Fig. 60). Place the large O-ring at that point. 3. Press the tension checker downward on the belt until the large O-ring is at the bottom of the straightedge. 4. Adjust the belt tension as needed. Adjust belt tension by loosing the motor mounting plate front bolts and rear bolt (see Fig. 61) and slide the plate towards the fan (to reduce tension) or away from the fan (to increase ten- sion). Ensure the blower shaft and motor shaft are parallel to each other (pulleys aligned). Tighten all bolts securely when finished. 51 BELT TENSION METHOD — Requires belt tension gauge that BELT DEFLECTION FORCE - SEE TABLE measures tension In belt In units Of lbs force. HT TORQUE ALL SHEAVE SET SCREWS TO 110-130 IN LBS. BELT CROSS SECTION SMALLEST SHEAVE DIAMETER BELT DEFLECTION FORCE (LBS) UNNOTCHEDBELTS NOTCHED BELTS USED NEW USED NEW 3.0-3.6 3.7 5.5 4.1 6.1 A, AX 3.8-4.8 4.5 6.8 5.0 7.4 5.0-7.0 5.4 8.0 5.7 8.4 B, BX 3.4-4.2 — — 4.9 7.2 4.4-5.6 5.3 7.9 7.1 10.5 5.8-8.6 1 6.3 9.4 1 8.5 1 12.6 Table 1 BELT CONDITION TENSION FORCE IN BELT (LBS) New 100 Used 1 80 Table 2 Fig. 60 — V-Belt Force Label BLOWER PULLERECEIVED N/�_ V-BELT Jun 10 2021 MOTOR CITY OF EDMONDS LTEVELOPMENT SERVICES PULLEY DEPARTMENT MOUNTING BOLTS (4) MOTOR MOUNTING PLATE Fig. 61 — Belt Drive Motor Mounting Pre -Start and Start -Up This completes the mechanical installation of the unit. Refer to the unit's Service Manual for detailed Pre -Start and Start -Up instructions. Download the latest versions from HVAC Part- ners (www.hvacpartners.com). 52 RECEIVED Jun 10 2021 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT RECEIVED Jun 10 2021 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT © Carrier Corporation 2019 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480221-01 Printed in U.S.A. Form 48HC-7-12-06SI Pg 54 1-19 Replaces: 48HC-7-12-05SI START-UP CHECKLIST (Remove and use for job file) NOTE: To avoid injury to personnel and damage to equip property when completing the procedures listed in this star)-plk checklist, use good judgment, follow safe practices, and adhereT#, the safety considerations/information as outlined in preceding ESLT tions of this Installation Instructions. I. PRELIMINARY INFORMATION MODEL NO. JOB NAME SERIAL NO. ADDRESS START-UP DATE TECHNICIAN NAME ADDITIONAL ACCESSORIES II. PRE -START-UP Verify that all packaging materials have been removed from unit (Y/N) Verify installation of outdoor air hood (Y/N) Verify installation of flue exhaust and inlet hood (Y/N) Verify that condensate connection is installed per instructions (Y/N) Verify that all electrical connections and terminals are tight (Y/N) Verify gas pressure to unit gas valve is within specified range (Y/N) Check gas piping for leaks (Y/N) Check that indoor -air filters are clean and in place (Y/N) Check that outdoor air inlet screens are in place (Y/N) Verify that unit is level (Y/N) Check fan wheels and propeller for location in housing/orifice and verify setscrew is tight (Y/N) Verify that fan sheaves are aligned and belts are properly tensioned (Y/N) Verify that scroll compressors are rotating in the correct direction (Y/N) Verify installation of thermostat (Y/N) Verify that crankcase heaters have been energized for at least 24 hours (Y/N) III. START-UP ELECTRICAL Supply Voltage L1-L2 L2-L3 L3-L1 Compressor Amps 1 L1-L2 L2-L3 L3-L1 Compressor Amps 2 L1-L2 L2-L3 L3-L1 Supply Fan Amps L1-L2 L2-L3 L3-L1 TEMPERATURES Outdoor -air Temperature °F DB (Dry Bulb) Return -air Temperature °F DB °F WB (Wet Bulb) Cooling Supply Air Temperature °F Gas Heat Supply Airs °F IVED 2021 MONDS SERVICES RENT Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480221-01 Printed in U.S.A. Form 48HC-7-12-06SI Pg CL-1 1-19 Replaces: 48HC-7-12-05SI PRESSURES Gas Inlet Pressure IN. WG Gas Manifold Pressure STAGE 1 IN. WG STAGE IN. RECEIVED Refrigerant Suction CIRCUIT A PSIGG CIRCUIT B PSIG Jun 10 2021 Refrigerant Discharge CIRCUIT A PSIG CIRCUIT B PSIG CITY OFEDMONDS DEVELOPMENT SERVICES Verify Refrigerant Charge using Charging Charts (Y/N) DEPARTMENT GENERAL Economizer minimum vent and changeover settings to job requirements (if equipped) (Y/N) Verify smoke detector unit shutdown by utilizing magnet test (Y/N) IV. HUMIDI-MIZER@ SYSTEM START-UP NOTE: Units equipped with either SystemVUTM or RTU Open controls have Service Test menus or modes that can assist with the Humidi-MiZer System Start -Up function and provide the means to make the observations listed for this start-up. STEPS 1. Check CTB for jumper 5, 6, 7 (Jumper 5, 6, 7 must be cut and open) (Y/N) 2. Open humidistat contacts (Y/N) ; w 3. Start unit In cooling (Close Y1) (Y/N) OBSERVE AND RECORD ;o w A. Suction pressure PSIG o B. Discharge pressure PSIG C. Entering air temperature ° F ; o D. Liquid line temperature at outlet or reheat coil ° F a E. Confirm correct rotation for compressor (Y/N) F. Check for correct ramp -up of outdoor fan motor as condenser coil warms (Y/N) 4. Check unit charge per charging chart (Y/N) 5. Switch unit to high -latent mode (sub -cooler) by closing humidistat with Y1 closed (Y/N) OBSERVE A. Reduction in suction pressure (5 to 7 psi expected) (Y/N) B. Discharge pressure unchanged (Y/N) C. Liquid temperature drops to 50 to 55°F range (Y/N) D. Liquid solenoid valve (LSV) energized (valve closes) (Y/N) 6. Switch unit to dehumid (reheat) by opening Y1 (Y/N) OBSERVE A. Suction pressure increases to normal cooling level B. Discharge pressure decreases (35 to 50 psi) z C. Liquid temperature returns to normal cooling levelUJ ; o D. LSV solenoid energized (valve closes) E. Discharge solenoid valve (DSV) energized, valve opens ; o 7. With unit in dehumid mode close W1: compressor and outdoor fan stop; LSV and DSV solenoids are de -energized ; z (Y/N) , o 8. Open W1 restore unit to dehumid mode (Y/N) ; Q 9. Open humidistat input: compressor and outdoor fan stop; LSV and DSV solenoids de -energized (Y/N) 10. Restore set -points for thermostat and humidistat (Y/N) REPEAT PROCESS FOR 2 COMPRESSOR SYSTEMS. © Carrier Corporation 2019 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480221-01 Printed in U.S.A. Form 48HC-7-12-06SI Pg CL-2 1-19 Replaces: 48HC-7-12-05SI