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REVIEWED BLD2023-1082+Other+8.30.2023_9.01.20_AM+3754913
RECEIVED Aug 31 2023 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT MKINN Installation and Operations Manual Single Packaged Gas/Electric L 13.4 SEER2 Convertible, 2 - 5 Ton 4YCC4024E1060 4YCC403OE1070 4YCC4036E1070 4YCC4036E1090 4YCC4042E1060 4YCC4042E1090 4YCC4048E1070 4YCC4048E1090 4YCC406OE1090 4YCC4060E1115 REVIEWED CITY OF EDMONDS Note: "Graphics in this document are for representation only. Actual model may differ in appearance. " Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment. February 2023 18-EB40D1-1 C-EN SAFETY SECTION Important — This document contains a wiring diagram, a parts list, and service information. This is customer property and is to remain with this unit. Please return to service information pack upon completion of work. HAZARDOUS GASES! Exposure to fuel substances or by-products of incomplete fuel combustion is believed by the state of California to cause cancer, birth defects, or other reproductive harm. This warning complies with state of California law, Proposition 65. HAZARDOUS VOLTAGE! Failure to follow this Warning could result in property damage, severe personal injury, or death. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. SAFETY AND ELECTRICAL HAZARD! Failure to follow this Warning could result in property damage, severe personal injury, or death. These servicing instructions are for use by qualified personnel only. To reduce the risk of electrical shock, do not perform any servicing other than that contained in these operating instructions unless you are qualified to do so. GROUNDING REQUIRED! Failure to inspect or use proper service tools may result in equipment damage or personal injury. Reconnect all grounding devices. All parts of this product that are capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened. UNIT CONTAINS R-410A REFRIGERANT! Failure to use proper service tools may result in equipment damage or personal injury. R-410A operating pressure exceeds the limit of R- 22. Proper service equipment is required. Service using only R-410A Refrigerant and approved POE compressor oil. SAFETY HAZARD! Operating the unit without the access panels properly installed may result in severe personal injury or death. Do not operate the unit without the evaporator fan access panel or evaporator coil access panel in place. WARNING! This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Important: Wear appropriate gloves, arm sleeve protectors and eye protection when servicing or maintaining this equipment. Important: Air filters and media wheels or plates shall meet the test requirements in UL 900. cCM2a 18-EB40M I C-EN Table of Contents Introduction, Unit Inspection and Specification ............................... 4 Introduction .............................. 4 Inspect Shipment ......................... 4 Product Specifications .................... 5 Charging in Cooling above 55°F OD Ambient................................. 7 Determine Unit Clearances ................. 8 Review Location and Recommendation Information ................................ 10 Unit Installation ........................... 12 Install Flue Hood ......................... 12 Ground Level Installation ................. 12 Rooftop Installation —Curb Mounting ............................... 12 ........................................ 12 Lifting and Rigging ................... 13 Rooftop Installation — Frame Mounting ............................... 14 Rooftop Installation — No Curb/ Frame.................................. 15 Ductwork Installation .................... 17 Attaching Downflow Ductwork to Roof Curb ........................... 17 Attaching Downflow Ductwork to Roof Frame .......................... 17 Gas Piping Installation ................ 18 Air Filter Installation ..................... 21 Electrical Wiring ......................... 22 Unit Startup ............................... 24 Pre -Start Quick Checklist ................. 24 Starting the Unit in Cooling Mode......... 24 Starting the Unit in Heating Mode......... 24 Sequence of Operation ................... 25 Final Installation Checklist ............ 26 Maintenance ............................ 27 Service Maintenance ................. 27 Pressure Curves ......................... 29 Indoor Fan Performance .................. 35 Refrigerant Circuit ....................... 41 Troubleshooting Chart ................... 42 Important Product Information ......... 44 18-EB40D1-1 C-EN 3 Introduction, Unit Inspection and Specification Introduction 2. Check the unit's nameplate to determine if the unit is correct for the intended application. The power Read this manual carefully before attempting to install, supply must be adequate for both the unit and all operate, or perform maintenance on this unit. accessories. Installation and maintenance should be performed by qualified service technicians only. This unit is listed by 3. Check to be sure the refrigerant charge has been Underwriters Laboratory. DO NOT use this furnace for retained during shipment. Remove the Compressor temporary heating of buildings under construction. access panel to access the 1/4" flare pressure taps. As shipped from the factory, this unit is for use with natural gas only. It is listed by Underwriters Laboratory. An LPG conversion kit is available. A high altitude installation kit of additional orifice sizes is available. Extreme mounting kits for slab and curbs are also available. Packaged units are designed for outdoor mounting with a vertical condenser discharge. They can be located either at ground level or on a roof in accordance with local codes or National Fuel Gas Code (ANSI-Z223.1A) Latest Revision. Since these units are designed exclusively for outdoor operation, additional flue venting systems are not required. Each unit contains an operating charge of refrigerant as shipped. Extreme mounting kits are available for slab (BAYEXMK003A), utility curb (BAYEXMK002B) and perimeter curb (BAYEXMK001A) mountings. Inspect Shipment 1. Check for damage after the unit is unloaded. Report promptly to the carrier any damage found to the unit. Do not drop the unit. Important. To prevent damage to the sides and top of the unit when hoisting, use "spreader bars" see, "Rooftop Installation — No Curb/Frame," p. 15 4. The Flue Hood is included with the unit's literature pack. 5. If this unit is being installed on a curb, verify that the correct curb is provided with the unit. • 4YCC4024-4036 use model BAYCURB050A • 4YCC4042-4060 use model BAYCURB051A 6. If the unit is being hoisted, accessory kit BAYLIFT002B is recommended. It includes a kit of four (4) lifting lugs and instructions. Notes: • If practical, install any internal accessories to the unit at the shop. • The packaged units have been evaluated in accordance with the Code of Federal Regulations, Chapter XX, Part 3280 or the equivalent. "SUITABLE FOR MOBILE HOME USE". 18-EB40D1-1 C-EN Introduction, Unit Inspection and Specification Product Specifications MODEL 4YCC4024*1 4YCC4030*1 4YCC4036*1070 [4YCC4036*1090] RATED Volts/PH/Hz 208-230/1/60 Performance Cooling BTUH (a) 23200 28000 36400 Indoor Airflow (CFM) 785 880 1215 Power Input (KW) LOCATED ON UNIT NAMEPLATE EER2/SEER2 BTU/Watt-Hr 11.00 / 13.40 Sound Power Rating [dB(A)] (b) 66.6 70 69.3 PERFORMANCE HEATING(c) Input BTUH-1st Stage (Natural Gas) (d) LOCATED ON UNIT NAMEPLATE AFUE 81 Temp. Rise -min/max (°F) 30/60 30/60 30/60 [35/65] Orifice Qty/drill size (Nat Gas) 2 / #37 2 / #33 2 / #33 [3 / #37] POWER CONN. — V/Ph/Hz 208-230/1/60 Min. Brch. Cir. Ampacity (e) LOCATED ON UNIT NAMEPLATE Fuse Size — Max. (amps) LOCATED ON UNIT NAMEPLATE Fuse Size — Recmd. (amps) LOCATED ON UNIT NAMEPLATE COMPRESSOR SCROLL VOLTS/PH/HZ 208-230/1/60 R.L. Amps — L.R. Amps LOCATED ON UNIT NAMEPLATE OUTDOOR COIL — TYPE SPINE FIN Rows/F. P.I 2 / 24 Face Area (sq. ft.) 13.2 13.3 15.5 Tube Size (in.) 3/8 INDOOR COIL — TYPE MCHE Rows/F. P.I 2/ 16 2/ 16 2/16 Face Area (sq. ft.) 2.7 2.7 2.7 Tube Size (in.) 0.81 0.81 1 Refrigeration Control EXPANSION VALVE Drain Conn. Size (in.) 3/4 FEMALE NPT OUTDOOR FAN — TYPE Swept DIA. (IN.) 23.4 DRIVE/NO. SPEEDS DIRECT/ 1 CFM @ 0.0 in. w.g. M 2350 2800 3080 Motor— HP/R.P.M 1/12 / 810 1/6 / 825 1/5 /825 Volts/Ph/Hz 208-230/1/60 F.L. Amps/L.R Amps LOCATED ON UNIT NAMEPLATE INDOOR FAN — TYPE Const. Torque ECM Dia. x Width (in.) 10.62 x 10.62 Drive/No. Speeds DIRECT/ 4 CFM @ 0.0 in. w.g. (e) SEE FAN PERFORMANCE TABLE Motor — HP / R.P.M. 1/3 / 1050 1/2 / 1050 3/4 / 1050 Volts/Ph/Hz 208-230/1/60 COMBUSTION FAN -TYPE Centrifugal Drive / no. Speeds Direct 1 Motor- HP/R.RM. 1/34/3345 1/34 /3290 1/34 /3290 F.L. Amps LOCATED ON UNIT NAMEPLATE FILTER/ FURNISHED NO Type Recommended THROWAWAY Recmd. Face Area (sq. ft) (h) 4.0 4.0 4.0 REFRIGERANT R-410 Charge (lbs.) LOCATED ON UNIT NAMEPLATE Subcooling 100 80 1 110 (a> Rated in accordance with AHRI Standard 210/240. AHRI standard rating conditions are: 80 D.B.67 W.B. entering air to indoor coil. 95 D. B. entering airto outdoor coil. (b) Sound Power values are not adjusted for AHRI 270-95 tonal corrections. (c) Ratings shown are for elevations up to 2000 ft. For higher elevations reduce ratings at a rate of 4% per 1000 ft. elevation. (d) Convertible to LPG. (e) This value is approximate. For more precise value, see Unit Nameplate. M Standard Air — Dry Coil — Outdoor. (9) Based on U.S. Government Standard Tests. (h) Filters must be installed in return air stream. Square footages listed are based on 300 f.p.m. face velocity. If permanent filters are used size per manufacturer's recommendation with a clean resistance of 0.05" W.C. "*-M 1 111MUN210 Introduction, Unit Inspection and Specification MODEL 4YCC4042*1060 [4YCC4042*1090] 4YCC4048*1070 [4YCC4048*1090] 4YCC4060A*1090 [4YCC4060A*1115] RATED Volts/PH/Hz 208-230/1/60 Performance Cooling BTUH (a) 39500 46000 57000 Indoor Airflow (CFM) 1450 1625 1770 Power Input (KW) LOCATED ON UNIT NAMEPLATE EER2/SEER2 BTU/Watt-Hr 11.00 / 13.40 10.80 / 13.40 11.00/13.40 Sound Power Rating [dB(A)] (b) 74.6 72.5 73.1 PERFORMANCE HEATING(c) Input BTUH-1st Stage (Natural Gas) (d) LOCATED ON UNIT NAMEPLATE AFUE 81 Temp. Rise -min/max (°F) 30/60 [35/65] 30/60 [35/65] 30/60 Orifice Qty/drill size (Nat Gas) 2 / #33 [3 / #37] 2 / #33 [3 / #37] 3 / #37 [3 / #331 POWER CONN. — V/Ph/Hz 208-230/1/60 Min. Brch. Cir. Ampacity (e) LOCATED ON UNIT NAMEPLATE Fuse Size — Max. (amps) LOCATED ON UNIT NAMEPLATE Fuse Size — Recmd. (amps) LOCATED ON UNIT NAMEPLATE COMPRESSOR SCROLL VOLTS/PH/HZ 208-230/1/60 R.L. Amps — L.R. Amps LOCATED ON UNIT NAMEPLATE OUTDOOR COIL — TYPE SPINE FIN Rows/F.P.I 2 / 24 Face Area (sq. ft.) 15.6 20.5 23.0 Tube Size (in.) 3/8 INDOOR COIL — TYPE MCHE Plate Fin Rows/F. P.I 2 / 16 2 / 16 4 / 15 Face Area (sq. ft.) 3.9 3.9 5.0 Tube Size (in.) 0.81 0.81 3/8 Refrigeration Control EXPANSION VALVE Drain Conn. Size (in.) 3/4 FEMALE NPT OUTDOOR FAN — TYPE Swept DIA. (IN.) 28.5 DRIVE/NO. SPEEDS DIRECT/ 1 CFM @ 0.0 in. w.g. M 3400 4800 4800 Motor —HP/R.P.M 1/4 /825 1/4 /825 1/3/825 Volts/Ph/Hz 208-230/1/60 F.L. Amps/L.R Amps LOCATED ON UNIT NAMEPLATE INDOOR FAN — TYPE Const. Torque ECM Dia. x Width (in.) 10.62 x 10.62 11.87 x 10.68 Drive/No. Speeds DIRECT/ 4 F DIRECT/ 5 1 DIRECT/ 4 CFM @ 0.0 in. w.g. (g) SEE FAN PERFORMANCE TABLE Motor — HP / R.P.M. 3/4 /1050 3/4 /1050 1 / 1050 Volts/Ph/Hz 208-230/1/60 COMBUSTION FAN -TYPE Centrifugal Drive / no. Speeds Direct 1 Motor- HP / R.P.M. 1/34 / 3345 1/34 /3290 1/34 / 3075 [1 /34 / 3055] F.L. Amps LOCATED ON UNIT NAMEPLATE FILTER / FURNISHED NO Type Recommended THROWAWAY Recmd. Face Area (sq. ft) (h) 5.3 5.3 5.3 REFRIGERANT R-410 Charge (lbs.) LOCATED ON UNIT NAMEPLATE Subcooling 100 100 1 110 (a) Rated in accordance with AHRI Standard 210/240. AHRI standard rating conditions are: 80 D.B.67 W.B. entering air to indoor coil. 95 D. B. entering airto outdoor coil. (b) Sound Power values are not adjusted for AHRI 270-95 tonal corrections. (c) Ratings shown are for elevations up to 2000 ft. For higher elevations reduce ratings at a rate of 4% per 1000 ft. elevation. (d) Convertible to LPG. (e) This value is approximate. For more precise value, see Unit Nameplate. M Standard Air — Dry Coil — Outdoor. (g) Based on U.S. Government Standard Tests. (h) Filters must be installed in return air stream. Square footages listed are based on 300 f.p.m. face velocity. If permanent filters are used size per manufacturer's recommendation with a clean resistance of 0.05" W.C. 18-EB40D1-1 C-EN Introduction, Unit Inspection and Specification Charging in Cooling above 55°F OD Ambient If servicing the equipment requires system evacuation, then re -charge the system to the weight specified on the nameplate. Verify the system subcooling using the Subcooling Charging Table and, if necessary, adjust the charge using the procedure below. 1. For best results — the indoor temperature should be kept between 70°F to 80oF. Add system heat if needed. 2. Whenever charge is removed or added, the system must be operated for a minimum of 20 minutes to stabilize before accurate measurements can be made. 3. Measure Liquid Line Temperature and Refrigerant Pressure at service valved in the compressor compartment. 4. Locate your liquid line temperature in the left column of the table, and the intersecting liquid line pressure under the subcool value column, Add refrigerant to raise the pressure to match the table, or remove refrigerant to lower the pressure. Again, wait 20 minutes for the system conditions to stabilize before adjusting charge again. Note: System charge shall never be more than 110% or less than 90% of nameplate charge. If specified subcooling cannot be achieved within those charge bounds, contact your Field Service Representative. 5. When system is correctly charged, you can refer to System Pressure Curves to verify typical performance. CHARGING BELOW 55°F Evacuate system and weigh in nameplate charge or use factory charge. Correct subcooling may be verified when the temperature is above 55°F. R-410A REFRIGERANT CHARGING CHART Refer to Service Facts or Installer's Guide for charging method LIQUID DESIGN SUBCOOLING (OF) TEMP 6 8 9 10 11 12 13 14 16 (OF) LIQUID GAGE PRESSURE (PSI) 55 174 179 182 185 188 191 195 198 205 60 189 195 198 201 204 208 211 215 222 65 205 211 215 218 222 225 229 232 240 70 222 229 232 236 240 243 247 251 259 75 240 247 251 255 259 263 267 271 279 80 259 267 271 275 279 283 287 291 301 85 279 287 291 296 300 304 309 313 323 90 301 309 313 318 322 327 331 336 347 95 323 331 336 341 346 351 355 360 371 100 347 355 360 365 370 376 381 386 398 105 371 381 386 391 396 402 407 413 425 110 398 407 413 418 424 429 435 441 454 115 425 435 441 446 452 458 464 470 484 120 454 464 470 476 482 488 495 501 516 125 484 495 501 507 514 520 527 533 549 From Dwg. D154557P01 18-EB40D1-1 C-EN Determine Unit Clearances Figure 1. Space on Sides Requirements E n.TB [II/16] SECTION X-X TYPICAL (8) SIDES OF SIDEFLOW DUCT OPENINGS 18.0332] 231[8.29 [23//32] 1/.22 SECTION TYPICAL (8) SIDES OF DOWNFLOW DUCT OPENINGS is 4 OUTLET FRONT SIDE LEFT SIDE 2 - 3 TON Units 1 3- 5 TON Units �I I III RECOMMENDED SERVICE CLEARANCE mm Inches W/ FC� .ONOMI7FR1 IWI ECONOMIZER BACK SIDE 305 [121 762 [301 305 12 762 30 LEFT SIDE 762 30 914 36 914 36 1067[421 RIGHTSIDE 610 24 610 24 FRONTSIDE 1067[42] - 762 [30] 1 - BOTTOM SIDE Note: The view labeled "Bottom side" represents the base as viewed looking up from underneath the unit. NYiI UE OD 8 18-EB40D1-1 C-EN Determine Unit Clearances Figure 2. Bottom and Back Duct Openings 2 E BOTTOM DUCT OPENINGS BACK DUCT OPENINGS WE 1 POWER ENTAY 34.13 DIA. HOLE [I-3/32] 84.96 [S-I I/32] AS LINE ENTRY FOR 12. TO " 23 N.P.T. 98.66 OAS CONNECTION 3 T 8 12T.84 I-RIGHT SIDE [5-I/32] BACK SIDE PHYSICAL DIMENSIONS mm[In] HEIGHT -A ..[Inch] B C D E F G H I J K L M N 4YCC4024 898.53 35-3/8 304.80 [12] 75.41 [2.93] 75.41 [2.93] 406.40 [16] 167.89 [6.61] 173.46 [6-27/32] 304.80 [12] 79.50 [3.13] 398.22 [15.68] 176.07 [6.93] 177.55 [6.99] 296.62 [11.68] 1155.45 [45.49] 4YCC4030 949.33 [37-3/8] 4YCC4036 4YCC4042 898.53 [35-3/81 457.20 [18] 75.41 [2.97] 75.41 [2.97] 381.00 [15] 244.09 [9.61] 318.75 [12.55] 381.00 [15] 79.50 [3.13] 449.02 [17.68] 176.07 [6.93] 322.84 [12.71] 372.82 [14.68] 1402.34 4YCC4048 1000.13 [35-3/8] 4YCC4066 Corner Weights KG/LBS SHIPPING WEIGHT KG/LBS UNIT WEIGHT KG/LBS Center Of Gravity mm[inch] W1 W2 W3 W4 BB CC 4YCC4024' 060 58 129 37 811 26 [581 41 [901 196 F 321 162 [3581 480 [191 528 21 4YCC4030* 070 61 [135] 39 [85] 28 [61] 43 [95] 205 [451] 171 [377] 407 [16] 594 [231 4YCC4036* 070 61 [134] 39 [84] 28 60 43 [95] 205 4381 171 [3741 407 161 594 28] 4YCC4036* 090 61 136 39 86 28 [61] 43 [96] 205 [453] 171 [379] 407 [16] 594 [28] 4YCC4042*060 71 157 47 103 35 [761 53 1171 1 252 r555 1 202 [2021 1 470 [191 731 29 4YCC4042*090 72 158 47 104 35 [781 1 54 [1181 1 255 [5611 1 207 [2021 1 470 [191 731 29 4YCC4048*070 71 157 45 98 33 73 54 119 250 552 202 448 433 1 743 29 4YCC4048*090 72 159 45 99 34 75 55 120 253 557 205 453 433 1 743 29 4YCC4060*090 77 170 46 101 35 76 58 128 263 580 216 476 433 1 743 29 4YCC4060*115 78 172 46 102 35 7 59 130 266 586 219 482 414 16 635 25 18-EB40D1-1 C-EN 9 Review Location and Recommendation Information Notes: inadequate should be reviewed with a local • The unit is shipped for horizontal installation. engineer. 3. See the unit's nameplate for the absolute minimum • During heating operation, avoid supply air clearance between the unit and any combustible below 80 degrees F or return air below 50 surfaces. degrees F to prevent flue gas condensation. Horizontal Airflow Units 1. Location of the unit must allow service clearance around it to ensure adequate serviceability, maximum capacity, and peak operating efficiency. 2. These units are designed for outdoor installation. They may be installed directly on a slab, wood flooring, or on Class A, B, or C roof covering material. The discharge air from the condenser fans must be unrestricted for a minimum of 3 feet above the unit. 3. The louvers above and below the flue hood in the side panel must have adequate clearance around the air opening into the combustion area. 4. Examine all flue product -carrying areas of the furnace, its vent system, and the main burner for safe operation. Important: A minimum clearance of 0.0" to combustible material shall be maintained on air outlet duct. 5. Exhaust vents or other sources of contaminated air must not be near the unit's air inlet if outside air is to be introduced as make-up air or a ventilation feature is to be used. Contamination from exhaust vents or chimneys may also foul the condenser causing degraded performance. 6. Check the handling facilities to ensure the safety of personnel and the unit(s). 7. The unit must be mounted level for proper drainage of water through the drain holes in the base pan. 8. The unit should not be exposed to direct roof water runoff. 9. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 10. Holes through exterior walls or roof must be sealed in accordance with local codes. 11. All fabricated outdoor ducts should be as short as possible. Clearances The recommended clearances for single -unit installations are illustrated in " Determine Unit Clearances," p.8. Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be Down Airflow Units 1. Location of the unit must allow service clearance around it to ensure adequate serviceability, maximum capacity, and peak operating efficiency. 2. Refer to the Installation section for instruction on converting the supply and return airflow covers to down airflow. 3. The field assembled Roof Mounting Curb (BAYCURB050A or BAYCURB051A) or a field fabricated curb should be in place before the unit is hoisted to the roof top. The Roof Mounting Curb (frame) must be installed on a flat, level section of the roof (maximum of 1/4" per foot pitch) and provide a level mounting surface for the unit. Also, be sure to provide sufficient height above the roof to prevent water from entering the unit. 4. Be sure the mounting curb spans structural members (trusses) of the roof, thereby providing sufficient support for the weight of the unit, the curb, the duct(s), and any factory or field installed accessories. 5. The unit must be mounted level for proper drainage of water through the drain holes in the base pan. 6. Be sure the hole in the structure for the ducts is large enough to accommodate the fabricated ducts and the insulation surrounding them. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 7. Holes through exterior walls or roof must be sealed in accordance with local codes. 8. These units are design certified for outdoor installation. They may be installed directly on a slab, wood flooring, or on Class A, B, or C roof covering material. The discharge air from the condenser fans must be unrestricted for a minimum of 3 feet above the unit. 9. The louvers above and below the flue hood in the side panel must have adequate clearance around the air opening into the combustion area. 10. Examine all flue product -carrying areas of the furnace, its vent system, and the main burner for safe operation. Important: A minimum clearance of 0.0" to combustible material shall be maintained on air outlet duct. 10 18-EB40D1-1 C-EN Review Location and Recommendation Information 11 12 Exhaust vents or other sources of contaminated air should not be near the unit's air inlet if outside air is to be introduced as make-up air or a ventilation feature is to be used. Contamination from exhaust vents or chimneys may also foul the condenser causing degraded performance. Check the handling facilities to ensure the safety of personnel and the unit(s). CInaran res 1. The recommended clearances for single -unit installations are illustrated in " Determine Unit Clearances," p.8. 2. Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. 3. See the unit's nameplate for the absolute minimum clearance between the unit and any combustible surfaces. 18-EB40D1-1 C-EN 11 Unit Installation Note: The factory ships this unit for horizontal installation. Install Flue Hood 1. Locate the Flue Hood in the literature package. 2. Remove the two Flue Hood mounting screws from the unit. They are located to the right of the Power Entry connection panel. 3. Attach the Flue Hood to the unit with the two screws removed in step two. Ground Level Installation 1. Place the unit on a pad the size of the unit or larger. The unit must be mounted level for proper drainage of water through the holes in the base pan. To attach the unit securely to the slab, use extreme mounting kit, BAYEXMK003A. Usage of the extreme mounting kit accessories is a recommendation, not a requirement. The pad must not come in contact with the structure. Be sure the outdoor portion of the supply and return air ducts are as short as possible. As indicated in Table 3, p. 14, vibration support is a recommendation, not a requirement. 2. The louvers above and below the Flue Hood in the side panel must have adequate clearance around the air opening into the combustion area. 3. Location of the unit must allow service clearance around it. Clearance of the unit must be given careful consideration. See " Determine Unit Clearances," p.8. Note: Any reduction of the unit clearances indicated in these illustrations may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances, which appear to be inadequate should be reviewed with a local engineer. Important: A minimum clearance of 0.0" to combustible material shall be maintained on air outlet duct. 4. Attach the supply and return air ducts to the unit as explained in the Ductwork Installation section. 5. Flexible duct connectors must be of a flame retardant material. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and weatherproof. There must be a weatherproof seal where the duct enters the structure. 6. Do not expose the unit to direct roof water runoff. 7. Seal all holes through exterior walls in accordance with local codes. 8. Continue with the following installation sections to complete the installation: Ductwork, Gas Piping, Filter and Electrical Wiring. Rooftop Installation —Curb Mounting Convert Horizontal Airflow to Down Airflow The factory ships the unit for horizontal airflow. Perform this procedure to convert it to down airflow: 1. Remove the three (3) sheet metal screws securing the supply air cover and the four (4) sheet metal screws securing the return air cover from the base of the unit. Remove the covers from the base. 2. Place the covers over the horizontal supply and return openings (painted side out). Align the screw holes, and secure using the same screws removed in step 1. Install Full Perimeter Roof Mounting Curb 1. Verify that the roof mounting curb is correct for the unit. There are two curbs depending on the unit cabinet sizes: • 4YCC4024-036 use model BAYCURB050A • 4YCC4042-060 use model BAYCURB051A 2. Assemble and install the curb following the instructions in the Installer's Guide included with the appropriate curb. 12 18-EB40D1-1 C-EN Unit Installation Table 1. Typical Ground Level Application Note: Use the extreme mounting kit, BAYEXMK003AA, to secure the unit to the slab. SIDING -- — RETURN SUPPLY _— AIR DUCT AIR DUCT „ not j A EXTERIOR WALL INSULATE J„r WEATHERPROOF OR RAIN SHIELD FLEXIBLE DUCT CONNECTORS Table 2. Converting Horizontal to Down Airflow HORIZONTAL SUPPLY (SOREWl SHEETAIR COVER VETAL HORIZONTAL RETURN, AIR COVER Lifting and Rigging IMPROPER UNIT LIFT! Failure to properly lift unit could result in death or serious injury or possible equipment or property - only damage. Test lift unit approximately 24 inches to verify proper center of gravity lift point. To avoid dropping of unit, reposition lifting point if unit is not level. OUTDOOR AIR DISCHARGE ,eV � /SUPPORTPAD FOUNDATION 3/4" VIBRATION ISOLATORS, USE 7 ISOLATORS Important: Do not lift the unit without test lifting for balance and rigging. Do not lift the unit in windy conditions or above personnel. Do not lift the unit by attaching clevis, hooks, pins, or bolts to the unit casing, casing hardware, corner lugs, angles, tabs, or flanges. Failure to observe these warnings may result in equipment damage. 1. Before preparing the unit for lifting, check the unit dimension drawings for center of gravity for lifting safety (" Determine Unit Clearances," p. 8). Because of placement of internal components, the unit's weight may be unevenly distributed. Approximate unit weights are also provided in the unit drawings. 18-EB40D1-1 C-EN 13 Unit Installation Note: Unit rigging and hoisting requires accessory kit BAYLIFT002BA. It includes a kit of four (4) lifting lugs. 2. Insert the four lifting lugs in the openings provided in the drip lip on each end of the unit. A tap or jerk to the lug will overcome the interference that arises due to the dimple on the lug. 3. When hoisting the unit, be sure that a proper method of rigging is used. Use slings and spreader bars for protection during lifting. Always test -lift the unit to determine the exact unit balance and stability before hoisting it to the installation location. 4. When the curb and air ducts have been properly installed, the unit is ready to be hoisted to the roof and set in position. Important: • To prevent damage to the sides and top of the unit when hoisting use "spreader bars". • The unit must be lowered into position. The P.V.C. rubber tape on the curb flange permits the unit to be repositioned if required without destroying the P.V.C. rubber seals affixed to the mounting curb. Table 3. Vibration Isolators/Snow Feet Locations Placing the Unit on the Mounting Curb 1. The unit is designed with a perimeter drip lip that is lower than the unit base pan, see Table 4, p. 15. 2. Position the unit drip lip down over and in contact with the outside corner of the curb. Continue to lower the unit on top of the curb, with the unit drip lip astraddle, and in contact with, both the end and side rail of the curb. The unit should now rest on top of the curb. Consider using the extreme mounting kit, BAYEXMK001A, to add additional hold down strength to the mounting. Notes: • For rooftop applications, the use of extreme mounting kits and vibration isolators is optional and not mandatory. • The ductwork is installed as part of the curb installation. Do not attach ductwork to the unit and lower the unit with ductwork onto the curb. Note: The installation instructions indicate typical installation only, but actual installation may differ. Note: These views represent the base as viewed looking up from underneath the unit. Important: Unit vibration isolator support is recommended in the general areas shown. Locate 314 " thick vibration isolators on the bottom of the basepan as illustrated by black dots for ground level pad applications. Modify vibration isolator location as necessary for frame and rail applications. small Cabinet ****4024 - 4036 Rooftop Installation — Frame Mounting For rooftop applications using field fabricated frame and ducts use the following procedure: 1. Locate and secure the frame to the roof by bolting or welding. Frame must provide adequate center support via a cross member centrally located channel rail. See Table 7, p. 17. Vibration isolators should be installed as indicated in Table 3, p. 14, adjust as necessary for your frame. The isolators must be placed on base pan, not drip lip. Add Medium Cabinet ****4042 - 4060 flashing as required. Flashing must conform to local building codes. 2. Prepare the hole in the roof in advance of installing the unit. 3. Secure the horizontal or down airflow ducts to the roof. Refer to the previous Convert from Horizontal Airflow to Down Airflow section if conversion is needed. 4. All fabricated outdoor ducts should be as short as possible. 5. Place the unit on the frame. 14 18-EB40D1-1 C-EN Unit Installation 6. The unit must be mounted level for proper drainage of water through the holes in the base pan. 7. Secure the unit to the frame. 8. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and then weatherproof. There must be a weatherproof seal where the duct enters the structure. 9. The unit should not be exposed to direct roof water runoff. 10. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings." Determine Unit Clearances," p. 8 provide unit dimensions. 12. Continue with the following installation sections to complete the installation: Ductwork, Filter, and Electrical Wiring. Rooftop Installation — No Curb/ Frame For roof top applications using field fabricated ducts and sleeper rails rather than a curb or frame, use the following procedure: 1. Locate and secure the sleeper rails to the roof by bolting (three (3) rails required). One on each end to support the edges of the unit and one across the center of the unit. The center rail must run inside both drip lips. Vibration isolators should be Table 4. Lifting and Rigging installed, adjust as necessary for your sleeper rails. The isolators must be placed on base pan, not drip lip. Add flashing as required. Flashing must conform to local building codes. 2. Prepare the hole in the roof in advance of installing the unit. 3. Secure the horizontal or down airflow ducts to the roof. Refer to the previous Convert from Horizontal Airflow to Down Airflow section if conversion is needed. 4. All fabricated outdoor ducts should be as short as possible. 5. Place the unit on the rails. 6. The unit must be mounted level for proper drainage of water through the holes in the base pan. 7. Secure the unit to the rails. 8. Insulate any ductwork outside of the structure with at least two (2) inches of insulation and then weatherproof. There must be a weatherproof seal where the duct enters the structure. 9. No exposure to direct roof water runoff. 10. Flexible duct connectors must be of a flame retardant material. All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes. 11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings. " Determine Unit Clearances," p. 8 provide unit dimensions. 12. Continue with the following installation sections: Ductwork, Filter and Electrical Wiring. Base of unit Drip lip on rest on top of perimeter of curb rails unit Spreader Bars 0 Gasket Seal /' BAYLIFTOo2A Dlmple L'Rln W s 18-EB40D1-1 C-EN 15 Unit Installation Table 5. Curb Dimensions A J E H L j'�-- --—-- --- -- 2-7/8" UNIT I II F RETURN OPENNG K DOWNFLOW G` B -C- MAX. SUPPLY OPENING CURB WIDTH L II II 77 II 2-7/8" (RECOMMENDED PERIMETER CURB RECESS) II II X 1" RECOMMENDED FIELD CURB MITER (TO TOP CURB _FLANGE)-4 PLACES - - - - - - - - - IELD CURB NIT BASE PAN 1-5/8 UNIT D" MAX. CURB LENGTH MITER (4 CORNERS) PRIMED FROM D674152 REFERENCE ILLUSTRATION FOR A CUSTOMER SUPPLIED ROOF CURB MODEL A 8 C D E I F G H J K L 4 TC+,YG+,WC+,DC+018,024,030,036 48-3/8 40-7/8 38-7/8 46-3/8 16 12 6-5/8 6-7/8 12 16 4 TC+,YC+,WC+,DC+042,048,060 58 43-7/8141-7/81 56 1 IS 1 15 1 18 1 9-5/8 12-1/2 15 This drawing was prepared by the manufacturer in order to provide detail regarding job layout only. This drawing is not intended to be used as a basis to construct, build or modify the item depicted in the drawing. The manufacturer is not responsible for the unauthorized use of this drawing and expressly disclaims any liability for damages resulting from such unauthorized use. Table 6. Typical Rooftop Horizontal Airflow Application with Frame 16 18-EB40D1-1 C-EN Unit Installation Table 7. Typical Rooftop Down Airflow Application with Frame 4 Return Air Supply Air I �i �A Roof Flashing Roof c Flashing Channel Iron Center Support (center support required on all X frame applications). Angle Iron Frame Ductwork Installation Attaching Downf low Ductwork to Roof Curb Supply and return air flanges are provided on the roof curb for easy duct installation. All ductwork must be run and attached to the curb before the unit is set into place. Attaching Downf low Ductwork to Roof Frame Follow these guidelines for ductwork construction: Connections to the unit should be made with three (3) inch canvas connectors to minimize noise and vibration transmission. Elbows with turning vanes or splitters are recommended to minimize air noise and resistance. The first elbow in the ductwork leaving the unit should be no closer than two (2) feet from the unit, to minimize noise and resistance. To prevent leaking, do not attach the ductwork to the bottom of the unit base. Refer to the bottom example in the figure below. Figure 3. Attaching Down Airflow Ductwork AIR PROOF THIS SEAM UNIT BASE FIELD DUCT UNIT DUCT FLANGE AIR PROOF THIS SEAM UNITDUCT FLANGE `UNIT BASE FIELD DUCT AIR PROOF THIS SEAM UNIT BASE FIELD \ DUCT UNIT DUCT FLANGE UNIT BASE UNIT DUCT f FLANGE / WATERPROOF SEAM WITH BUTYL OR SILICONE NOT RECOMMENDED FIELD DUCT 18-EB40D1-1 C-EN 17 Unit Installation Attaching Horizontal Ductwork to Unit All conditioned air ductwork should be insulated to minimize heating and cooling duct losses. Use a minimum of two (2) inches of insulation with a vapor barrier. The outside ductwork must be weatherproofed between the unit and the building. When attaching ductwork to a horizontal unit, provide a flexible watertight connection to prevent noise transmission from the unit to the ducts. The flexible connection must be indoors and made out of heavy canvas. Note: Do not draw the canvas taut between the solid ducts. Figure 4. Attaching Horizontal Airflow Ductwork UNIT EXTERIOR WEATHERPROOF THIS SEAM FIELD DUCT Gas Piping Installation FIRE OR EXPLOSION HAZARD! Failure to follow the safety warning exactly could result in serious injury, death, or property damage. Use a commercially available soap solution made specifically for the detection of leaks to check all connections. Important: Before making the gas pipe connection, give serious consideration to providing the clearance necessary to remove the access panels on the unit (e.g., economizer and filter access panels). Note: In the absence of local codes, the installation must conform with American National Standard— Z223.1—National Fuel Gas Code, Latest Revision. The available gas supply must agree with the required gas supply marked on the unit nameplate. Minimum permissible gas supply pressure for purpose of input UNIT EXTERIOR adjustment must be at least 7.0 in. w. c. (inches water WEATHERPROOF column) for natural gas and 11 in. w. c. for LP Gas. THIS SEAM FIELD DUCT Pipe Delivery Schedule Condensate Drain Piping A 3/4-inch female NPT condensate drain connection is provided on the evaporator access panel end of the unit. Provide a trap and fill it with water before starting the unit to avoid air from being drawn through. Follow local codes and standard piping practices when running the drain line. Pitch the line downward away from the unit. Avoid long horizontal runs. See Figure 5, p. 18. Note: Do not use reducing fittings in the drain lines. The condensate drain must be: • Made of 3/4" pipe size • Pitched 1/4" per foot to provide free drainage to convenient drain system • Trapped • Must be connected to a closed drain system unless the trap is properly vented Figure 5. Typical Condensate Drain Piping 3/4" PVC OR COPPER TUBING AND FITTINGS T___ _ 1-1/2" MIN. 1-1/2y" MIN. 1 18 Note: The following procedure and tables apply to Natural Gas only. 1. Obtain from the gas company the heating value and specific gravity of the gas delivered. 2. Determine the exact length of pipe needed. 3. Read BTUH input nameplate on the furnace. 4. Use the multiplier opposite the specific gravity of the gas given in Multiplier Table and insert in the following formula: 5. Use the Natural Gas Only table and select the pipe length nearest to calculated size. CFH = Furnace Input in BTUH Gas Heat Contne in BTU/Cu. Ft. X Multiplier 6. Follow this line vertically down to the exact CFH found in Step 4 above or the next highest value. 7. Read horizontally to the left of this column for the required pipe size diameter. Table 8. Specific Gravity Multiplier SPECIFIC MULTIPLIER GRAVITY .50 1.10 MULTIPLIERS TO BE USED WHEN THE SPECIFIC GRAVITY •55 1.04 OF THE GAS IS OTHERTHAN .60 1.00 0.060 .65 .962 Note: If this is an LP Gas application, consult your LP Gas supplier for pipe sizes and deliveries. 18-EB40D1-1 C-EN Unit Installation Table 9. Natural Gas Only TABLE OF CUBIC FEET PER HOUR OF GAS FOR VARIOUS PIPE SIZES AND LENGTHS PIPE SIZE (inch) 10 20 30 40 s0 60 70 1/2 132 92 73 63 56 50 46 3/4 278 190 152 130 115 105 96 1 520 350 285 245 215 195 180 1-1/4 1050 730 590 520 440 400 370 THIS TABLE IS BASED ON PRESSURE DROP OF 0.3 INCH W.C. AND 0.6 SP.GR. GAS Gas Pressure Set-up Precautions Important: Do not connect gas piping to the unit until a line pressure test has been completed. This unit should never be exposed to gas line pressure in excess of 14 inches water column (112 PSIG). The furnace and its equipment shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 112 psi. The furnace must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system attest pressures less than or equal to 1/2 psig (3.48 kPa). Gas Supply Line Pressure Before connecting the unit to the gas supply line, be sure to determine the gas pressure in the line. If the gas supply pressure is excessive (above 14 inches water column or 1/2 psig), install a pressure regulator either at the supply source or in the branch circuit serving the unit. Once the regulator is installed, set it to provide a pressure of 7 inches water column with the unit operating and no greater than 14 inches water column with the unit not firing. Note: Gas pressure in excess of 14 inches water column (112 psig) may damage the regulator, while improper regulation may result at pressures lower than 5.5 inches water column at the unit inlet. If the supply line pressure is below the minimum supply pressure indicated on the unit nameplate, contact the gas supply company. Follow these steps to complete the installation of the unit gas piping. See Table 10, p. 19. Note: The shut-off gas cock must be installed outside of the unit and should meet the specifications of all applicable national and local codes. Table 10. Gas Pipe DEALER INSTALLED 1/8" N.P.T.PLUGGED GROUND UNION ACCESS FOR TEST GAUGE CONNECTION FROM j�6" GAS SUPPLY MIN TO MAIN L� CONTROL VALVE UNIT FIELD SUPPLIED MAIN GAS VALVE, MUST BE DRIP LEG INSTALLED BY DEALER (6" MIN) OUTSIDE OF UNIT. 1. Install a ground union joint downstream of the shut-off cock. This joint must also be installed outside of the unit. 2. Install a drip leg at least six (6) inches in depth next to the union as shown in . This drip leg is required to collect any sediment that may be deposited in the line. 3. Before connecting the piping circuit to the unit, bleed the air from the supply line and then cap or plug the line and test the pressure at the tapped shut-off cock. The pressure reading should not exceed 13.8 inches water column. 4. Using an appropriate backup wrench on the gas valve inlet boss, connect the gas piping to the unit. Check the completed piping for leaks using a soap and water solution or the equivalent. 5. After installation of the gas pipe in the unit, the pipe opening should be closed with the filler/barrier plug provided. Verify Manifold Pressure Check the manifold pressure at the unit gas valve. Do not exceed the recommended pressure shown on the unit nameplate. See Figure 6, p. 20 for connections. Refer to Manifold Pressure Check and Adjust in the following Step 5-Unit Startup section if adjustment is needed. Input Check and Adjustment 1. Make sure all gas appliances are off except the furnace. 2. Clock the gas meter with the furnace operating (determine the dial rating of the meter) for one revolution. 3. Match the "Sec" column in the Gas Flow (in cfh) Table 11, p. 20 with the time clocked. 4. Read the "Flow" column opposite the number of seconds clocked. 5. Table 11, p. 20 lists values for a 2 cubic foot dial. For 1, 1/2, or 5 Cu. Ft. dials use the following conversions: 18-EB40D1-1 C-EN 19 Unit Installation • 1 Cu. Ft. Dial Gas Flow CFH = Chart Flow Reading / 2 • 1/2 Cu Ft. Dial Gas Flow CFH = Chart Flow Reading / 4 • 5 Cu. Ft. Dial Gas Flow CFH = 1 OX Chart Flow Reading / 4 6. Multiply the final figure by the heating value of the gas obtained from the utility company and compare to the nameplate rating. This must not exceed the nameplate rating. 7. Changes can be made by adjusting the manifold pressure. a. Attach a manifold pressure gauge to the Outlet Pressure Tap. Inlet Manual Pressure On -Off Tap Switch ; Regulator Cover Screw (Adj. screw beneath — --7 this screw) Vent Post Outlet Pressure Tap Table 11. Gas Flow (in cfh) b. Remove the cover screw on top of the gas valve to access the manifold pressure adjustment screw. c. Turn the adjustment screw in to increase the gas flow rate, and out to decrease the gas flow rate using a 3/32" hex wrench or flat -head screwdriver. Note: For manifold pressures and orifice sizes for gas with other BTU ratings, contact the local gas utility. Manifold pressure should be 3.5 inches water column (+ 0.1). Input for natural gas must not exceed the value shown on the rating plate. Figure 6. Burner and Valve Manifold REF. VIEW (GAS VALVI Orifice Sec. Flow Sec. Flow Sec. Flow Sec. Flow 8 900 29 248 50 144 82 88 9 800 30 240 51 141 84 86 10 720 31 232 52 138 86 84 11 655 32 225 53 136 88 82 12 600 33 218 54 133 90 80 13 555 34 212 55 131 92 78 14 514 35 206 56 129 94 76 15 480 36 200 57 126 96 75 16 450 37 195 58 124 98 73 17 424 38 189 59 122 100 72 18 400 39 185 60 120 104 69 19 379 40 180 62 116 108 67 20 360 41 176 64 112 112 64 Table 11. Gas Flow (in cfh) (continued) Sec. Flow Sec. Flow Sec. Flow Sec. Flow 21 343 42 172 66 109 116 62 22 327 43 167 68 106 120 60 23 313 44 164 70 103 124 58 24 300 45 160 72 100 128 56 25 288 46 157 74 97 132 54 26 277 47 153 76 95 136 53 27 267 48 150 78 92 140 51 28 257 49 147 80 90 144 50 20 18-EB40D1-1 C-EN Unit Installation High Altitude Installation Input ratings (BTUH) of these furnaces are based on sea level operation and should not be changed at elevations up to 2000 ft. If the unit installation is from Table 12. Orifice Twist Drill Size 2000 to 8000 feet elevation, then change the burner orifices to the size listed in Table 12, p. 21. Refer to Table 13, p. 21 for orifice part numbers. Orifice Twist Altitude Above Sea Level and Orifice Change Required for that Elevation Drill Size if Installed at Sea Level 2000 3000 4000 5000 6000 7000 8000 32 33 34 35 35 36 36 37 33 35 35 36 36 37 38 38 37 38 39 39 40 41 42 42 49 50 50 50 51 51 51 52 52 52 53 53 53 53 53 54 From National Fuel Gas Code —Table F-4 Table 13. Orifice Part Numbers Drill Size Part Number Drill Size Pa rt Number 32 ORF01307 41 ORF01413 33 ORF0134 42 ORF01410 34 ORF01335 49 ORF01333 35 ORF01407 50 ORF01332 36 ORF01408 51 ORF01336 37 ORF01406 52 ORF01331 38 ORF01306 53 ORF01411 39 ORF01409 54 ORF01412 40 ORF01336 Air Filter Installation The packaged unit requires an air filter. The unit does not come with a factory installed filter rack in it, however, two filter frame accessories are offered that will allow the installation of a filter within the unit, BAYFLTR101 & BAYFLTR201. Otherwise afield supplied filter rack must be installed by the installer in the return duct work. Affix the filter label supplied with the unit adjacent to the filter area. Refer to Table 14, p. 21 to determine filter size. Table 14. Determine Filter Size Unit Nominal CFM Filter Size (Sq Ft) Filter (a) Resistance (W.C.) YC-4024A 800 2.67 0.08 YC-4030A 1000 3.33 0.08 YC-4036A 1200 4.00 0.08 YC-4042A 1400 4.67 0.08 YC-4048A 1600 5.33 0.08 YC-4060A 2000 6.67 0.08 al Filters must be installed in the return air system. The above square footages are based on 300 F.P.M. face velocity. If permanent filters are used, size per mfg. Recommendation with clear resistance of 0.05" WC. Important: Air filters and media wheels or plates shall meet the test requirements in UL 900. 18-EB40D1-1 C-EN 21 Unit Installation Electrical Wiring INSTALLATION WARNING — HIGH VOLTAGE MOVING PARTS! Failure to follow this Warning could result in property damage, severe personal injury, or death. Bodily injury can result from high voltage electrical components, fast moving fans, and combustible gas. For protection from these inherent hazards during installation and servicing, the main gas valve must be turned off and the electrical supply must be disconnected. If operating checks must be performed with the unit operating, it is the technician's responsibility to recognize these hazards and proceed safely. Note: This unit is factory wired for 230V. See wiring diagram for 208V conversion. Electrical Connections Electrical wiring and grounding must be installed in accordance with local codes or, in the absence of local codes, with the National Electrical Code ANSI/NFPA 70, Latest Revision. Electrical Power It is important that proper electrical power be available for the unit. Voltage variation should remain within the limits stamped on the unit nameplate. Disconnect Switch Provide an approved weatherproof disconnect within close proximity and within sight of the unit.lf disconnect must be mounted to the cabinet, the location shown in Table 17, p. 22 should be the only one considered. Over Current Protection The branch circuit feeding the unit must be protected as shown on the unit's rating plate. Power Wiring The power supply lines must be run in weather -tight conduit to the disconnect and into the side of the unit control box. Provide strain relief for all conduit with suitable connectors. Provide flexible conduit supports whenever vibration transmission may cause a noise problem within the building structure. 1. Remove the Control/Heat access panel. Pass the power wires through the Power Entry hole in the end of the unit. See Table 15, p. 22. 2. Connect the high voltage wires to the appropriate contactor terminals. Single phase units use a two (2) pole contactor and three phase units use three (3) pole contactor. Connect the ground to the ground lug on the chassis. See Table 17, p. 22. Ensure all connections are tight. GROUNDING: THE UNIT MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR THE NATIONAL ELECTRIC CODE. Note: Unit must be grounded for ignitor to operate properly. Gas pipe to unit is not an adequate ground. Ground the unit internally as provided. See wiring diagram for location in. Table 15. Power Wiring Table 16. Power Connections Table 17. Mounted Disconnect Location 22 18-EB40D1-1 C-EN Unit Installation Figure 7. 4YCC4— Field Wiring Diagram GAS —ELECTRIC UNIT F______PACKAGED T UNIT CONTROL BOX NOTES: 1. FUSED DISCONNECT SIZE, POWER WIRING AND GROUNDING OF TWO STAGE HEAT EQUIPMENT MUST COMPLY WITH THERMOSTAT CONNECTIONSI CODES. 2. BE SURE POWER SUPPLY AGREES WITH EQUIPMENTAND HEATER NAMEPLATE. I I I 1 I 1 3. LOW VOLTAGE WIRING TO BE 18AWG MINIMUM CONDUCTOR. 4. SEE UNIT DIAGRAM FOR ELECTRICAL CONNECTION DETAILS. 5. THE GAS ELECTRIC UNIT WILL ---------36(8U B COMMON PROVIDE CONSTANT CIRCULATION 47Af 13K1 G FAN REGARDLESS OF COOLING OR ------44A(YL) Y COMPRESSOR HEATING STATUS WITH A'G'SIGNAL —---41A(BR) W1 HEAT FIRST STAGE ONLY FROM THE THERMOSTAT. — — — 41C(BRI W2 HEAT SECOND STAGE 35A(RDI R 24V 6. FOR SINGLE STAGE THERMOSTATS, JUMPER W1 AND W2 TOGETHER. UNIT LOW VOLTAGE AREA SECOND STAGE HEAT WILL BEGIN -- — — 10 MINUTES AFTER FIRST STAGE. GROUND WIRE _ 1 PH POWER TYPICAL 2 STAGE HEAT THERMOSTAT 3 PH POWER UNIT NOTE 1 F_ _7 SINGLE STAGE ECONOMIZER ACCESSORY THERMOSTAT CONNECTIONS CONNECTIONS FT. ECONOMIZER _7 FACTORY PROVIDED FIEWIRESSTALLED I I I I —361 BL 1 ](C—M-11CUILVION) cORRox - -_4 BKI µi1 RESSO---44A1LI ACTavrcaxvvssso nx --41AIBR1 W1 ixEAT Rxsl—INN) L--4ICIBRI W2 xEAlsEwxosrncEM _--35AIRD1 R znv IT LOW VOLTAGE AREA IB I G I Y WII R TYPICAL 1 STAGE HEAT THERMOSTAT NOTE 6 Control Wiring (Class II) L 36E1 BL� — ------------368(BL1 B L ___— (YL) 47E1 L— ELK.) --- ------------4TAIBKI G II L-----_— 44D(PRI—_—_---44A(YL) Y W1 ��-41A(BR) UNIT LOW — — 41 C(BR) W2 VOLTAGE AREA 35AIRD1 R — Low voltage control wiring should not be run in conduit with power wiring unless Class 1 wire of proper voltage rating is used. Route the thermostat cable or equivalent single leads of No. 18 AWG colored wire from the thermostat subbase terminals through the rubber grommet on the unit. See Unit Clearance Graphics for the control entry (24V Entry) location. Make connections as shown on the unit wiring diagram. Do not short thermostat wires since this will damage the control transformer. Refer to Table 18, p. 23 for recommended wire sizes and lengths for installing the unit thermostat. The total resistance of these low voltage wires must not exceed one (1) ohm. Any resistance in excess of 1 ohm may cause the control to malfunction because of the excessive voltage drop. FIELD INSTALLED JUMPER TYPICAL STAGE THERMOSTAT DWG. C7571 QREVA INTER -COMPONENT WIRING 24V. FACTORY ------- LINE V WIRING 24V. FIELD LINE V. WRING WIRE COLOR DESIGNATION ABBR COLOR ABBR COLOR BK BLACK PR PURPLE BL BLUE RD RED BIR BROWN WH WHITE GR GREEN YL YELLOW OR ORANGE Table 18. Thermostat Wire Size and Max. Length Wire Size Maximum Length 18 75 16 125 14 200 Thermostat Heat Anticipator Set the heat anticipator of the thermostat to equal the amperage draw of the gas valve Important: Upon completion of wiring, check all electrical connections, including factory wiring within the unit. Make sure all connections are tight. Replace and secure all electrical box covers and access panels before leaving the unit or turning on the power to the unit. 18-EB40D1-1 C-EN 23 Unit Startup Pre -Start Quick Checklist ❑ Is the unit properly located and level with the proper clearances? See " Determine Unit Clearances," p.8. ❑ Is the duct work correctly sized, run, taped, insulated, and weatherproofed with proper unit arrangement as shown in the ductwork installation section? ❑ Is the condensate line properly sized, run, trapped, and pitched and shown in the Condensate Drain Piping section? ❑ Is the gas piping correctly sized, run, trapped, and purged of air? See Gas Piping Installation section. ❑ Is the filter of the correct size and quantity? Is it clean and in place? See Air Filter Installation section. ❑ Is the wiring properly sized and run according to the unit wiring diagram? ❑ Are all the wiring connections, including those in the unit tight? ❑ Has the unit been properly grounded and fused with the recommended fuse size? ❑ Is the thermostat well located, level, and correctly wired? See Electrical Wiring section. ❑ Have the air conditioning systems been checked at the service ports for charge and leak tested if necessary? ❑ Do the condenser fan and indoor blower turn free without rubbing and are they tight on the shafts? ❑ Has the indoor blower speed been determined and the proper speed been set? To adjust the fan, see the Indoor Fan Motor Speed Tap Setting section. ❑ Has all work been done in accordance with applicable local and national codes? ❑ Are all covers and access panels in place to prevent air loss and safety hazards? Starting the Unit in Cooling Mode Note: See the section on Sequence of Operation for a description of the cooling operating sequence. To start the unit in the cooling mode, set the thermostat system switch to COOL and move the thermostat COOL indicator to a setting below room temperature. The condenser fan motor, compressor and evaporator fan motor will operate automatically. Operating Pressure Checks After the unit has operated in the cooling mode for a short period of time, install pressure gauges on the gauge ports of the discharge and suction line valves (behind the Compressor access panel). Check the suction and discharge pressures and compare them to the normal operating pressures provided in the unit's SERVICE FACTS. Note: Do not use the PRESSURE CURVES from the unit's SERVICE FACTS to determine the unit refrigerant charge. The correct charge is shown on the unit nameplate. To charge the system accurately, weigh in the charge according to the unit nameplate and check subcooling against the Subcooling Charging Table in the SERVICE FACTS. Voltage Check With the compressor operating, check the line voltage at the unit (contactor is located behind the Control/Heat access panel). The voltage should be within the range shown on the unit nameplate. If low voltage is encountered, check the size and length of the supply line from the main disconnect to the unit. The line may be undersized for the length of the run. Cooling Shut Down At the thermostat, place the system selector to the OFF position or reset the thermostat to a setting above room temperature. Important: De -energize the main power disconnect ONLY when servicing the unit. Power may be required to keep the heat pump compressor warm and to boil off refrigerant in the compressor. Starting the Unit in Heating Mode Note: See the section on Sequence of Operation for a description of the heat pump heating operating sequence. These units are equipped with a solid-state ignition control that lights the burners each time the thermostat calls for heat. The burners are extinquished during the OFF cycle. To start the gas heating section of the unit: 1. Check that all grills and registers are open and all unit access panels are closed before start-up. 24 18-EB40D1-1 C-EN Unit Startup 2. Purge the gas supply line of air by opening the union ahead (upstream) of the unit. When the odor of gas is detected, retighten the union and wait five (5) minutes before proceeding. 3. Be sure the thermostat is at its lowest setting and the power to the unit is off. a. Turn the main shut-off valve on the gas supply line to ON. b. Turn the thermostat to the highest setting in the heating cycle. 4. Be sure the burner compartment access panel is in place. a. Turn on the electrical power to the unit. b. Turn the thermostat to the highest setting in the heating cycle. 5. As the thermostat calls for heat, the system cycles as follows: a. The combustion blower is energized. b. The pressure switch is closed. c. The gas valve opens and the ignitor lights the burner. d. Cycle the thermostat on and off a few times to check out the control system and burner operation characteristics. Note: For manifold pressures and orifice sizes for gas with other BTU ratings, contact the local gas utility. Manifold pressure should be 3.5 inches w.c. (+0.1). Input must not exceed the value shown on the rating plate. e. With the burner operating, check the manifold pressure with a manometer. 6. Do not exceed recommended pressures. If the manifold pressure needs adjustment, refer to Manifold Pressure Check and Adjust in the Maintenance section. With the burners operating, check the manifold pressure with a manometer. 7. If necessary, adjust the unit to obtain an air temperature rise with that specified on the unit nameplate. To adjust, refer to the Indoor Fan Motor Speed Adjustment in the Maintenance section. Note: Blue smoke produced by the heat exchanger during the initial burner firing is caused by a thin film of oil on the surface of the heat exchanger. This oil will burn off quickly. 8. Set the thermostat at the desired temperature setting and the unit will function automatically. Sequence of Operation General Operation of the system cooling (and optional heating) cycles is controlled by the setting of the system switch on the room thermostat. Once the system switch is placed either in the "HEAT" or "COOL" position, unit operation is automatic. A fan switch on the thermostat also provides for continuous operation of the evaporator fan when desired. The fan switch "ON" position provides continuous operation while the "AUTO" position provides operation during the heating or cooling cycles. Heating Cycle Thermostat call for heat (R) and (W) thermostat contacts close signaling the control module (IGN) to run its self -check routine. After the control has verified that the pressure switch (PS) contacts are open, the limit switch (TCO) contacts are closed, and the flame rollout (RO) switch is closed, the induced draft blower (CFM) will be energized. After the induced draft blower (CFM) has come up to speed, the control will verify that the pressure switch (PS) contacts are closed and run the induced draft blower for a 20 second pre -purge. The gas valve (GV) is energized to permit gas flow and the spark ignitor (IP) is energized. The flame detector (FD) confirms that ignition has been achieved within the 7 second trial period. As the flame detector confirms that ignition has been achieved the delay to indoor fan on period begins timing and after approximately 45 seconds, the indoor blower motor (IDM) will be energized and will continue to run during the heating cycle Thermostat satisfied: (R) and (W) contacts open signaling the control module to close the gas valve and de -energize the induced draft blower after approximately 5 seconds post -purge. The indoor blower motor will continue to operate at the current speed for 60 or 90 seconds (field selectable) after the flames are extinguished. Cooling Cycle With the room thermostat system switch in the "COOLING" position and the fan switch in the "AUTO" position, the compressor contactor (CC) and the indoor fan motor (IDM) are energized. The energized compressor contactor (CC) completes the circuit to the compressor (CPR) and a secondary circuit to the outdoor fan motor (ODM). If the compressor safety controls are closed, the compressor (CPR) will operate with the outdoor fan motor (ODM). The indoor fan motor (IDM) will operate. The thermostat will continue to cycle the compressor and fans to maintain the desired temperature. With the thermostat fan switch in the "ON" position, the indoor fan motor (IDM) will continue to run at constant 18-EB40D1-1 C-EN 25 Unit Startup circulation of 40 — 50% airflow of selected tap regardless of compressor and condenser fan operation. Safety Sequences This product is equipped with safety devices to protect against abnormal conditions. The temperature limit switch (TCO) is located on the blower barrier, and can be accessed through the blower compartment. This automatic reset device protects against excessive leaving air temperature. If this device opens, the gas valve is immediately closed and will not permit operation until the limit switch closes. The rollout switch (RO) is located in the gas compartment near the inlet of the burners. This is a manual reset device designed to protect against any form of flame rollout. If this device is opened the gas valve is immediately de -energized and the control (IGN) will lockout the system. The rollout switch (RO) must be reset before operation is allowed to continue. The pressure switch (PS) is located in the upper right side of the gas compartment. This automatic device assures adequate combustion air pressure. If pressure against the induced draft blower outlet becomes excessive, the pressure switch will react and shut off the gas valve, until acceptable combustion pressure is again available. If the control (IGN) does not sense flame within the first trial for ignition period, the gas valve will be de - energized. The control (IGN) will initiate a 60 seconds interpurge. Following the interpurge, the control will perform a second ignition attempt. If the second try is not successful, the control will start another 60 second interpurge. After the interpurge, a third attempt will be tried. If the third try is not successful, the control will lock out. If loss of flame occurs during a heating cycle, the control (IGN) will close the gas valve and cycle through the ignition trial as stated above. If control lock out occurs, the control (IGN) will retry a complete ignition sequence in 1 hour. The control (IGN) can be reset by removing power to the unit or by turning the thermostat from "on" to "off' for approximately three seconds, then back "on". Final Installation Checklist ❑ Does the unit run and operate as described in the section on "Sequence of Operation" in response to the room thermostat? ❑ Are the condenser fan and indoor blower operating correctly with proper rotation and without undue noise? ❑ Is the compressor operating correctly and has the system been checked with a charging chart? ❑ Has the voltage and running current been checked to deter mine if it is within limits? ❑ Has the thermostat been checked for calibration and the air discharge grilles adjusted to balance the system? ❑ Has the ductwork been checked for air leaks and condensation? ❑ Has the furnace manifold pressure been checked and adjusted if necessary? ❑ Has the heating air temperature rise been checked? ❑ Has the unit been checked for tubing and sheet metal rattles? Are there any other unusual noises to be checked? ❑ Are all covers and panels in place and properly fastened? ❑ Has the owner been instructed on the proper operation and maintenance of the unit? Be sure to leave this manual with the owner. 26 18-EB40D1-1 C-EN Unit Startup Maintenance Service Maintenance Service maintenance should be performed by qualified service personnel. Cooling Season To keep the unit operating safely and efficiently, the manufacturer recommends that a qualified service technician check the entire system at least once each year or more often if needed. The service technician should examine these areas of the unit: • filters (for cleaning or replacement) • motors and drive system components • economizer gaskets (for possible replacement) • safety controls (for mechanical cleaning) • electrical components and wiring (for possible replacement and connection tightness) • condensate drain (for proper sealing and cleaning) • unit duct connections (to see that they are physically sound and sealed to the unit casing) • unit mounting support (for structural integrity) • the unit (for obvious unit deterioration) Heating Season Complete the following unit inspections and service routines described at the beginning of each heating season. • Visually inspect the unit to ensure that the airflow required for combustion and condenser coil is not obstructed from the unit. • Inspect the control panel wiring to verify that all electrical connections are tight and that the wire insulation is intact. • Check the operation of the gas ignition system as follows: Turn off the gas supply with the unit operating to verify that the gas valve closes and that a re -ignition cycle is initiated by the unit. • Visually inspect the inside of the burners and the burner ports for deposit buildup and corrosion. Wipe and brush the inside of the burner and the burner ports and then clean with a dry cloth. If the deposit buildup or corrosion is excessive, replace the burners. Flue Hood and Combustion Blower Cleaning Note: Never use combustible cleaning fluids on any part of the furnace. Before each heating season, the flue should be inspected for signs of flaking rust and soot deposits. Dirty flues should be cleaned by qualified service personnel ONLY using the following procedure: 1. Turn the comfort control to OFF. Turn the main power disconnect OFF. Turn the manual gas valve OFF. 2. Remove the flue hood and the CONTROL/HEAT access panel. 3. Remove the combustion blower assembly from the flue box. Remove the flue box and the flue restrictors. 4. Remove all wires from the gas valve while carefully noting their locations. 5. Disconnect the gas supply line from the valve. 6. Remove the manifold retaining screws and pull the burner -manifold assembly from the heat exchanger. 7. Remove the inlet turbulators being careful not to break or damage them. 8. Wipe the flue box and flue baffles clean with a clean, dry cloth. 9. Replace all gaskets with new ones. 10. Replace all damaged or broken turbulators with new ones. 11. Reassemble the unit by reversing Steps 2 through 7 above. Take care that all gaskets seat properly. 12. Check all wires for correct installation by referring to the unit's electrical wiring diagram in the SERVICE FACTS. 13. Leak test all gas line connections with a soap and water solution or the equivalent. 14. Re -install the CONTROUHEAT access panels and the flue hood. 15. Visually inspect the unit to ensure that the airflow opening for combustion is not obstructed. 16. Follow "Unit Startup," p. 24 to place the unit back in service. Indoor Fan Motor (IDM) Speed Tap Setting The 208/230 units are factory set to medium speed. 208/230 Volt Motor Tap Settings () High speed setting: On the IGN board: 1. Connect the "RD" wire to the "PARK" terminal. 2. Connect the (IDM) PR wire to the "BLOWER LOAD" terminal. Low speed settinq: On the IGN board: 1. Connect the "RD" wire to the "BLOWER LOAD" terminal. 2. Connect the (IDM) PR wire to the "PARK" terminal. 18-EB40D1-1 C-EN 27 Unit Startup Figure 8. 208/230 Volt Speed Taps RDA YL INDUCER PARK IGN ORANGE (CC1) RD IN E ( CC1) RD IN IGN GND GR BLOWER G GR (IDM) PR LOAD w wH LITE PORT STATUS Y Y L 0A R R D LED LED 90 60 B B L HEAT COOL nd TR BL (IDM) PR YL INDUCER PARK I GN ORANGE (CC1) RD IN E (CC1)RD IM IGN GND GR BLOWER G G R RD LOAD w wH LITE PORT STATUS Y Y L DA 0� R RD LED LED BB L HEAT t06 COOLTH OR TR BL Table 19. IGN LED Diagnostic Indicators Status LED Liteport LED Steady OFF Check Power or Failed Board 2 Flashes System Lockout: Failed to detect or sustain flame Slow Flash Rate Normal, No Call for Heat 3 Flashes Pressure switch problem detected Fast Flash Rate Not used 4 Flashes High Limit switch protection device open Steady ON Normal, No Call for Heat 5 Flashes Flame sensed and gas valve not energized or "W" flame sensed and no signal. 6 Flashes Flame Rollout Switch open 7 Flashes Thermostat miswired; W! & W2 Fast Flash Rate: The LED will flash on for 1/4 second and off for 1/4 second. Slow Flash Rate: The LED will flash on for 3/4 second, then off for 1/4 second. The pause between groups of fast flashes is 3 seconds. 28 18-EB40D1-1 C-EN Unit Startup Pressure Curves a_ w cn cn w w a �3 >s J a_ w co co W w a Z O H U co 500 450 400 350 300 250 200 Figure 9. Pressure Curve - 4YCC4024E1 Cooling DOOR ENTERING =T BULB CURVES )P TO BOTTOM , 67, 63 AND 59 DEG 40 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) 170 165 160 155 150 145 140 135 130 125 120 115 110 INDOOR ENTERING NET BULB CURVES IOP TO BOTTOM 11. 67, 63 AND 59 40 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN. EXAMPLE: (1) OUTDOOR TEMP. 82 F (2) INDOOR WET BULB 67 F. (3) AT INTERSECTION ACTUAL: (4) DISCHARGE PRESSURE @ 800 CFM CFM IS 333 PSIG. DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART (5) SUCTION PRESSURE @ 800 CFM CFM IS 141 PSIG. SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART Dwg. 4YCC4024E1 18-EB40D1-1 C-EN 29 Unit Startup 500 C7 450 N 1L w 400 N 350 LU w a 300 250 J T a LU LU w IL z O H rJ Figure 10. Pressure Curve - 4YCC403OE1 200 4-1 40 Cooling INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) 210 190 170 150 130 110 90 70 50 40 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN. EXAMPLE: (1) OUTDOOR TEMP. 82 F (2) INDOOR WET BULB 67 F. (3) AT INTERSECTION ACTUAL: (4) DISCHARGE PRESSURE @ 900 CFM CFM IS 320 PSIG. DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART (5) SUCTION PRESSURE @ 900 CFM CFM IS 136 PSIG. SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART Dwg. 4YCC4030E1 30 18-EB40D1-1 C-EN Unit Startup Figure 11. Pressure Curve - 4YCC4036E1 Cooling 500 450 N a w 400 N 350 LU w a 300 250 J 200 -�' 40 -,L L � INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) 170 165 160 CD N 155 Pr- 150 ul W 145 co 140 CO) LU 135 IL 130 Z Q 125 V 120 y 115 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. 110 " -1 40 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN. EXAMPLE: (1) OUTDOOR TEMP. 82 F (2) INDOOR WET BULB 67 F. (3) AT INTERSECTION ACTUAL: (4) DISCHARGE PRESSURE @ 1200 CFM CFM IS 326 PSIG. DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART (5) SUCTION PRESSURE @ 1200 CFM CFM IS 144 PSIG. SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART DWG.NO. 4YCC4036E1 18-EB401)1-1 C-EN 31 Unit Startup Figure 12. Pressure Curve - 4YCC4042E1 Cooling 500 0 450 Fn a_ w 400 U) 350 w w a 300 a 250 J 200 +- 40 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DE 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) 170 165 160 0t7 N 155 a 150 w W 145 cn 140 U) w 135 a 130 Z 0 125 U 120 U) 115 M. INDOOR ENTERING IULB CURVES NI •- .• BOTTOM 59 11-21-1 ' • ---------=--------- 110 , 40 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN. EXAMPLE: (1) OUTDOOR TEMP. 82 F (2) INDOOR WET BULB 67 F. (3) AT INTERSECTION ACTUAL: (4) DISCHARGE PRESSURE @ 1450 CFM CFM IS 326 PSIG. DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART (5) SUCTION PRESSURE @ 1450 CFM CFM IS 145 PSIG. SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART DWG.NO. 4YCC4042E1 32 18-EB40D1-1 C-EN Unit Startup Figure 13. Pressure Curve - 4YCC4048E1 500 a 450 N a_ W 400 N 350 W a 300 s 250 J 200 4-1 40 Cooling INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DE 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) 170 165 a160 y 155 a 150 W M 145 CO) 140 LU 135 a 130 Z 0 125 V 120 CO) 115 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG F. 110 40 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN. EXAMPLE: (1) OUTDOOR TEMP. 82 F (2) INDOOR WET BULB 67 F. (3) AT INTERSECTION ACTUAL: (4) DISCHARGE PRESSURE @ 1650 CFM CFM IS 327 PSIG. DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART (5) SUCTION PRESSURE @ 1650 CFM CFM IS 139 PSIG. SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART DWG.NO. 4YCC4048E1 18-EB40D1-1 C-EN 33 Unit Startup Figure 14. Pressure Curve - 4YCC406OE1 500 0 450 N a W 400 CO) 350 W w a 300 250 J T N a LU N W w IL z O H V Y) 200 4-1 40 Cooling INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71, 67, 63 AND 59 DEG 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) 170 165 160 155 150 145 140 135 130 125 120 115 110 --------------- INDOOR ENTERING- WET ULB CURVES I" .- `O BOTTOM I'---'' 59 ,-------------------- 40 60 80 100 120 OUTDOOR TEMPERATURE (Degree F) COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F. TO CHECK COOLING PERFORMANCE, SELECT THE PROPER INDOOR CFM, ALLOW PRESSURES TO STABILIZE. MEASURE INDOOR WET BULB TEMPERATURE, OUTDOOR TEMPERATURE, DISCHARGE AND SUCTION PRESSURES. ON THE PLOTS LOCATE OUTDOOR TEMPERATURE (1); LOCATE INDOOR WET BULB (2); FIND INTERSECTION OF OD TEMP. & ID W.B. (3); READ LIQUID (4) OR SUCTION (5) PRESSURE IN LEFT COLUMN. EXAMPLE: (1) OUTDOOR TEMP. 82 F (2) INDOOR WET BULB 67 F. (3) AT INTERSECTION ACTUAL: (4) DISCHARGE PRESSURE @ 1750 CFM CFM IS 335 PSIG. DISCHARGE PRESSURE SHOULD BE +/- 10 PSI OF CHART (5) SUCTION PRESSURE @ 1750 CFM CFM IS 140 PSIG. SUCTION PRESSURE SHOULD BE +/- 3 PSIG OF CHART DWG.NO. 4YCC4060E1 34 18-EB40D1-1 C-EN Unit Startup Indoor Fan Performance Table 20. Airflow Tables 4YCC4024E1060 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant Circulation CFM APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM _ 900 846 794 729 - - Cooling - Low (891) (838) (786) (722) WATTS 114 121 128 138 - - (115) (122) (129) (138) CFM _ _ 890 836 777 707 - - Cooling Med (881) (828) (769) (700) - WATTS 158 167 175 185 (159) (167) (176) (186) CFM _ _ _ 908 863 818 773 731 Cooling - High (899) (854) (810) (765) (724) WATTS _ _ _ 248 256 264 274 282 (249) (258) (266) (276) (284) CFM 1123 1059 994 943 889 Heating - Low (1123) (1059) (994) (943) (889) 143 152 160 167 175 WATTS (143) (152) (160) (167) (175) - - CFM 1122 1069 1022 974 922 871 809 - Heating High (1122) (1069) (1022) (974) (922) (871) (809) WATTS - 213 221 229 238 245 253 261 - (213) (221) (229) (238) (245) (253) (261) Note: Cooling airflow must not exceed 900 CFM due to condensate blowoff. 4YCC403OE1070 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 CFM Constant Circulation APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1051 994 939 889 840 - Cooling Low (1041) (984) (930) (880) (831) - 126 134 142 150 158 WATTS (126) (135) (143) (150) (158) CFM - _ 1108 1070 1027 975 920 875 Cooling -Med (1097) (1059) (1017) (965) (911) (866) 239 247 256 267 274 282 WATTS - (240) (248) (258) (269) (276) (284) - CFM _ - - 1099 1059 1017 968 Cooling - High (1088) (1048) (1007) (959) WATTS _ _ _ 259 268 278 289 - (260) (270) (279) (290) CFM 1148 1103 1061 1022 982 932 - - Heating - Low (1136) (1091) (1050) (1012) (972) (922) 199 208 216 224 233 243 WATTS (197) (205) (214) (222) (230) (241) - - - CFM - 1158 1122 1084 1039 988 Heating High (1147) (1111) (1073) (1028) (978) 301 310 320 331 343 WATTS - - (298) (307) (317) (328) (339) - - Note: Cooling airflow must not exceed 1125 CFM due to condensate blowoff. 18-EB40D1-1 C-EN 35 Unit Startup 4YCC4036E1070 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant CFM Circulation APPROXIMATELY40-50% COOLING OR HEATING AIRFLOW WATTS CFM - 1272 1243 1214 1186 1154 1116 1072 - Cooling - Low (1259) (1231) (1202) (1174) (1142) (1105) (1061) WATTS 352 361 372 382 392 404 416 - - (354) (363) (374) (384) (394) (406) (418) CFM _ _ _ 1349 1319 1277 1242 1199 1160 1124 Cooling - Med (1336) (1306) (1264) (1230) (1187) (1148) (1113) WATTS 489 500 511 523 537 548 558 (492) (503) (514) (526) (540) (551) (561) CFM _ _ - 1326 1296 1263 1225 1183 1150 Cooling High (1299) (1270) (1238) (1201) (1159) (1127) - WATTS 516 527 539 552 566 575 (519) (530) (542) (555) (569) (578) CFM 1185 1141 1099 1055 1009 968 920 854 808 731 624 Heating - Low (1173) (1130) (1088) (1044) (999) (958) (911) (846) (800) (724) (618) WATTS 241 251 260 270 279 289 299 311 320 306 284 (238) (248) (258) (267) (277) (286) (296) (308) (316) (303) (282) CFM 1386 1354 1311 1276 1238 1198 1164 1069 805 689 596 Heating - High (1373) (1340) (1298) (1263) (1225) (1186) (1153) (1058) (797) (682) (590) WATTS 386 399 409 419 430 441 452 432 320 303 298 (382) (395) (405) (415) (425) (437) (448) (428) (317) (300) (295) Note: Cooling airflow must not exceed 1350 CFM due to condensate blowoff. 4YCC4036E1090 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant CFM Circulation APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1288 1254 1225 1193 1158 1117 1070 - Cooling - Low (-) (1238) (1207) (1176) (1143) (1091) (-) WATTS 340 348 357 366 375 385 395 (-) (348) (357) (366) (375) (385) (-) CFM 1326 1300 1271 1241 1201 1107 Cooling - Med (1320) (1294) (1263) (1234) (1196) (1102) WATTS 410 419 427 437 447 423 (410) (419) (427) (437) (447) (423) CFM _ - - 1349 1319 1277 1242 1199 1160 1124 Cooling - High (1336) (1306) (1264) (1230) (1187) (1148) (1113) WATTS 489 500 511 523 537 548 558 (492) (503) (514) (526) (540) (551) (561) CFM 1292 1259 1230 1199 1163 1124 1071 963 799 638 Heating - Low (1285) (1252) (1222) (1186) (1148) (1111) (1060) (954) (781) () WATTS 343 351 360 369 378 388 398 370 316 293 (343) (351) (360) (369) (378) (388) (398) (370) (316) (-) CFM 1367 1341 1310 1282 1250 1212 1075 928 781 631 Heating - High (1355) (1326) (1295) (1267) (1235) (1183) (1056) (913) (-) () WATTS 404 413 421 431 439 448 404 346 302 282 (404) (413) (421) (431) (439) (448) (404) (346) (-) (-) Note: Cooling airflow must not exceed 1350 CFM due to condensate blowoff. 36 18-EB40D1-1 C-EN Unit Startup 4YCC4042E1060 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant CFM Circulation APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1358 1393 1348 1296 1253 - Cooling -Low (1345) (1379) (1334) (1283) (1241) WATTS 224 233 242 252 262 - - - - (228) (238) (247) (257) (267) CFM 1521 1490 1448 1391 1362 1338 1315 1307 1254 - Cooling - Med (1506) (1475) (1433) (1377) (1348) (1325) (1302) (1293) (1241) WATTS 306 316 327 337 348 359 369 382 395 - (312) (322) (333) (344) (354) (366) (377) (389) (403) CFM - - - - 1529 1491 1467 1425 1385 1345 - Cooling - High (1514) (1476) (1453) (1411) (1371) (1331) WATTS 455 467 477 490 503 513 (464) (477) (487) (499) (513) (523) CFM 1104 1042 977 911 841 764 687 598 Heating - Low (1109) (1047) (982) (916) (845) (767) (690) (601) WATTS 109 116 124 134 142 152 161 171 (109) (117) (125) (134) (143) (153) (162) (172) CFM - 1171 1112 1050 990 927 821 779 704 Heating High (1177) (1117) (1055) (995) (931) (856) (783) (707) - WATTS 154 162 172 182 192 203 214 225 (155) (163) (173) (182) (193) (204) (215) (226) Note: Cooling airflow must not exceed 1575 CFM due to condensate blowoff. 4YCC4042EI090 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant CFM Circulation APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1358 1393 1348 1296 1253 - - Cooling Low (1345) (1379) (1334) (1283) (1241) - WATTS 224 233 242 252 262 - - - - - (228) (238) (247) (257) (267) CFM 1521 1490 1448 1391 1362 1338 1315 1307 1254 Cooling - Med (1506) (1475) (1433) (1377) (1348) (1325) (1302) (1293) (1241) WATTS 306 316 327 337 348 359 369 382 395 (312) (322) (333) (344) (354) (366) (377) (389) (403) CFM - - - - 1529 1491 1467 1425 1385 1345 Cooling - High (1514) (1476) (1453) (1411) (1371) (1331) WATTS 455 467 477 490 503 513 (464) (477) (487) (499) (513) (523) CFM 1419 1380 1341 1295 1249 1204 1160 1115 1069 1015 961 Heating - Low (1426) (1387) (1348) (1301) (1255) (1210) (1166) (1120) (1074) (1020) (966) WATTS 240 250 259 269 279 291 302 312 323 333 348 (241) (251) (260) (270) (281) (292) (303) (314) (325) (335) (349) CFM 1559 1524 1483 1443 1401 1363 1319 1276 1233 1195 1147 Heating - High (1567) (1531) (1491) (1450) (1408) (1370) (1326) (1282) (1239) (1201) (1152) WATTS 313 324 335 346 356 367 379 392 403 415 428 (315) (325) (337) (347) (358) (368) (381) (394) (405) (417) (430) Note: Cooling airflow must not exceed 1575 CFM due to condensate blowoff. 18-EB40D1-1 C-EN 37 Unit Startup 4YCC404SE1070 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant Circulation CFM APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1583 1542 1502 1460 1415 - - - Cooling - Low (1567) (1526) (1487) (1445) (1401) WATTS 302 313 324 332 346 (308) (320) (330) (339) (352) CFM 1763 1723 1689 1648 1609 1568 1527 1488 1447 Cooling -Med (1745) (1706) (1672) (1632) (1593) (1552) (1512) (1473) (1433) WATTS 414 426 436 448 459 471 483 495 510 (422) (434) (444) (457) (468) (480) (493) (505) (520) CFM _ 1786 1757 1729 1700 1675 1648 1624 1504 Cooling -Med High (1768) (1739) (1712) (1683) (1658) (1632) (1608) (1489) WATTS 577 591 604 617 631 643 655 599 (589) (603) (616) (629) (644) (656) (668) (611) CFM - _ - - 1769 1728 1688 1652 1545 - Cooling High (1751) (1711) (1671) (1635) (1530) - WATTS - - - - 613 631 643 647 611 (625) (644) (656) (660) (623) CFM 1120 1047 980 914 840 758 674 581 Heating - Low (1126) (1052) (985) (918) (845) (762) (677) (584) WATTS 117 126 135 145 156 168 179 188 - (117) (127) (136) (146) (156) (168) (180) (189) CFM _ 1204 1149 1095 1043 989 926 858 798 Heating- High (1210) (1154) (1100) (1048) (994) (930) (862) (802) WATTS - 176 185 195 205 216 227 239 249 (177) (186) (196) (206) (217) (228) (240) (250) Note: Cooling airflow must not exceed 1800 CFM due to condensate blowoff. 4YCC404SE1090 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant Circulation CFM APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1583 1542 1502 1460 1415 Cooling - Low (1567) (1526) (1487) (1445) (1401) WATTS 302 313 324 332 346 (308) (320) (330) (339) (352) CFM 1763 1723 1689 1648 1609 1568 1527 1488 1447 Cooling -Med (1745) (1706) (1672) (1632) (1593) (1552) (1512) (1473) (1433) WATTS 414 426 436 448 459 471 483 495 510 (422) (434) (444) (457) (468) (480) (493) (505) (520) CFM - 1786 1757 1729 1700 1675 1648 1624 1504 Cooling -Med High (1768) (1739) (1712) (1683) (1658) (1632) (1608) (1489) WATTS 577 591 604 617 631 643 655 599 - (589) (603) (616) (629) (644) (656) (668) (611) CFM - - - - 1769 1728 1688 1652 1545 Cooling - High (1751) (1711) (1671) (1635) (1530) WATTS 613 631 643 647 611 (625) (644) (656) (660) (623) CFM 1419 1380 1341 1295 1249 1204 1160 1115 1069 1015 961 Heating Low (1426) (1387) (1348) (1301) (1255) (1210) (1166) (1120) (1074) (1020) (966) - 240 250 259 269 279 291 302 312 323 333 348 WATTS (241) (251) (260) (270) (281) (292) (303) (314) (325) (335) (349) CFM 1559 1524 1483 1443 1401 1363 1319 1276 1233 1195 1147 Heating - High (1567) (1531) (1491) (1450) (1408) (1370) (1326) (1282) (1239) (1201) (1152) WATTS 313 324 335 346 356 367 379 392 403 415 428 (315) (325) (337) (347) (358) (368) (381) (394) (405) (417) (430) Note: Cooling airflow must not exceed 1800 CFM due to condensate blowoff. 38 18-EB40D1-1 C-EN Unit Startup 4YCC406OE1090 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Constant CFM Circulation APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1857 1831 1800 1766 - - Cooling - Low (1831) (1802) (1765) (1728) WATTS 515 523 533 544 - - (524) (533) (545) (558) CFM 2031 2003 1974 1940 1907 1874 1837 1805 1771 - Cooling - Med (2003) (1975) (1946) (1913) (1880) (1848) (1811) (1780) (1746) WATTS 594 609 624 639 653 667 681 695 709 (611) (627) (642) (658) (672) (686) (701) (715) (730) CFM 2083 2058 2032 2003 1974 1943 1911 1877 1843 1807 - Cooling - High (2054) (2030) (2010) (1976) (1946) (1911) (1879) (1848) (1817) (1781) WATTS 749 759 769 779 788 803 816 830 845 860 (770) (781) (790) (804) (819) (832) (845) (858) (872) (887) CFM 1534 1489 1445 1403 1361 1314 1275 1234 Heating - Low (1541) (1497) (1452) (1410) (1367) (1321) (1281) (1240) WATTS 281 292 304 314 325 337 348 358 (282) (293) (305) (316) (327) (339) (349) (360) CFM - 1594 1551 1511 1471 1430 1386 1344 1305 1265 Heating High (1602) (1558) (1518) (1478) (1437) (1392) (1351) (1311) (1271) - WATTS - 348 361 373 384 396 409 420 432 443 (350) (363) (374) (386) (398) (411) (423) (434) (445) Note: Cooling airflow must not exceed 2250 CFM due to condensate blowoff. 4YCC406OE1115 EXTERNAL STATIC PRESSURE (IN.WG) Horizontal Airflow [Down Airflow] Motor Speed 0.0 0.1 0.2 0.3 0.4 1 0.5 0.6 0.7 0.8 Constant CFM Circulation APPROXIMATELY 40-50% COOLING OR HEATING AIRFLOW WATTS CFM 1857 1831 1800 1766 - - Cooling - Low (1831) (1802) (1765) (1728) WATTS 515 523 533 544 - - - - - (524) (533) (545) (558) CFM 2031 2003 1974 1940 1907 1874 1837 1805 1771 Cooling - Med (2003) (1975) (1946) (1913) (1880) (1848) (1811) (1780) (1746) WATTS 594 609 624 639 653 667 681 695 709 (611) (627) (642) (658) (672) (686) (701) (715) (730) CFM 2083 2058 2032 2003 1974 1943 1911 1877 1843 1807 Cooling - High (2054) (2030) (2010) (1976) (1946) (1911) (1879) (1848) (1817) (1781) WATTS 749 759 769 779 788 803 816 830 845 860 - (770) (781) (790) (804) (819) (832) (845) (858) (872) (887) 1827 1792 1757 1721 1685 1646 1605 1570 Heating - Low CFM (1815) (1790) (1757) (1712) (1679) (1648) (1613) (1574) 492 505 517 529 541 553 566 577 WATTS (510) (520) (532) (549) (560) (570) (582) (596) 1927 1894 1861 1824 1788 1750 1711 1674 1639 Heating High CFM - (1910) (1875) (1839) (1803) (1773) (1736) (1704) (1661) (1622) - 614 627 639 651 664 677 689 702 715 WATTS - (630) (634) (647) (660) (672) (685) (698) (712) (726) Note: Cooling airflow must not exceed 2250 CFM due to condensate blowoff. 18-EB40D1-1 C-EN 39 Unit Startup To set indoor motor for the desired speed options, connect the motor leads in the taps as shown below: Table 21. Motor Wiring: 4YCC4024 - 42, 4YCC4060 MOTOR WIRING MODE/SPEED MOTORTAP 1 2 3 4 5 CONSTANT CIRCULATION G(GR) COOLING -LOW & HEATING -LOW G(GR) Y (YL) W (PR) COOLING -LOW & HEATING -HIGH G(GR) Y (YL) W (PR) COOLING-MED & HEATING -LOW G(GR) Y (YL) W (PR) COOLING-MED & HEATING -HIGH G(GR) Y (YL) W (PR) COOLING -HIGH & HEATING -LOW G(GR) W (PR) Y (YL) COOLING -HIGH & HEATING -HIGH G(GR) Y (YL) W (PR) G signal (GR- green wire), Ysignal (YL- yellow wire), W signal (PR- purple wire) Table 22. Motor Wiring: 4YCC4048 MOTOR WIRING MOTORTAP MODE/SPEED 1 2 3 4 5 CONSTANT CIRCULATION G(GR) COOLING -LOW & HEATING -LOW G (GR) Y (YL) W (PR) COOLING -LOW & HEATING -HIGH G(GR) Y (YL) W (PR) COOLING-MED LOW& HEATING -LOW G (GR) Y (YL) W (PR) COOLING-MED LOW & HEATING -HIGH G (GR) Y (YL) W (PR) COOLING-MED HIGH & HEATING -LOW G(GR) W (PR) Y (YL) COOLING-MED HIGH & HEATING -HIGH G(GR) W (PR) Y (YL) COOLING -HIGH & HEATING -LOW G (GR) W (PR) Y (YL) COOLING -HIGH & HEATING -HIGH G (GR) W (PR) Y (YL) G signal (GR- green wire), Ysignal (YL- yellow wire), W signal (PR- purple wire) 40 18-EB40D1-1 C-EN Unit Startup Refrigerant Circuit INDOOR COIL INDICATES DIRECTION OF REFRIGERATION FLOW EXPANSION VALVE BULB SCHRADER LPCO VALVE LO i Eli SCHRADER i VALVE HI i i COMPRESSOR HPCO EQUALIZER LINE SCHRADER VALVE LIQUID EXPANSION LIQUID VALVE LINE DRIER OUTDOOR COIL 18-EB40D1-1 C-EN 41 Unit Startup Troubleshooting Chart P-PRIMARY CAUSES / S-SECONDARY CAUSES rn L Gl L c d p1 R a) 0+ L v R H 3 O C O 3 O W C O C L L O +N+ +° E ` — y ° 0 O N L U 1a t J G7 `� L ' a C L a 3 O ° 'y �. R G 3 H o i L a E •o U O a m U O s a+ uJ a M d c: v �► o� c O d of a E O C O > C O L X a� a C d SYSTEM FAULTS L m a m M L a L a, v m +, U > „ w O a) a 3 N oG d 3 {' E U V t L '„° ++ - O F 10 C> O U C v C C i C 9 +� +' U) O j O U C 7 M U) ++ > o L O � U 'U m L Gl W u V a > 3 O) V L a o, V) C 3 C U o w �Gl Im m a� V o G x F- � _ v = U J O V J L - ) w Z V) p N Ce REFRIGERANT CIRCUIT Liquid Pressure too High P S P S S Liquid Pressure too Low S P S S S Suction Pressure too High S P P S S Suction Pressure too Low S S P S Liquid Refrigerant Floodback (TXV System) S S P I.D. Coil Frosting P S P S Compressor Runs S P P S S S S P S Inadequate or No Cooling ELECTRICAL Compressor&O.D. Fan Do P P S S P P P Not Start Compressor will not Start p S P P P S but O.D. Fan Runs O.D. Fan will Not Start P P Compressor Hums but will P P P P S S Not Start Compressor Cycles on IOL P S P P P S P S P S S S S S S S I.D. Blower willnot Start P S S P P 42 18-EB40D1-1 C-EN Notes 18-EB40D1-1 C-EN 43 Important Product Information Packaged Unit Serial Number Packaged Unit Model Number Date of Installation Dealer Service Information Call your installing dealer if the unit is inoperative. Before you call, always check the following to be sure service is required: 1. Be sure the main switch that supplies power to the unit is in the ON position. 2. Replace any burned -out fuses or reset circuit breakers. 3. Be sure the thermostat is properly set. Service Phone About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com. 0%_us Intertek The AHRI Certified mark indicates company participation in the AHRI Certification program. For verification of individual certified products, go to ahridirectory.org. The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices. 18-EB40D1-1C-EN 24Feb2o23 Supersedes18-EB40D1-1B-EN (December2022) ©2023