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BLD2023-0064_Manufacturer_Specifications_and_Installation_Instructions_1.17.2023_7.53.35_AM_3317218Job Name: System Reference: Date: Indoor Unit SVZ-KP36NA Outdoor ,e�ilI111�lI111��. ,, aIn'ppI��A1101 �;.! f!��I�dllull�lll;lllllllll �iW �IUIIIIII�INII�IWII�IIII� �' �Ill�l�lllllllll�i�l pp 11�9111VI���IIIIIIIIIpppp��I�V� gIlln�lell�IIIIH�II� 'IINMnNl91111ph• INDOOR UNIT FEATURES • Ducted air handler provides a solution to cool and heat large zones • Highly efficient totally enclosed ECM motor • Selectable external static pressure: 0.30, 0.50 and 0.80 in.WG with 3 fan speeds at each static setting • 1 inch R4.2 fiberglass free insulation reduces condensation and boosts efficiency • Positive pressure cabinet with air leakage of less than 2.0% at 1.0 In.WG (Tested perASHRAE Standard 193) • Unique blow through design allows simple coil cleaning when the blower is removed • Multi -position installation: horizontal (left or right), vertical (up or down) • Optional electric heat kit for additional heat capacity • Optional humidifier control and ERV control • Built-in humidifier control, ERV control and auxiliary heat control • Optional downflow kit • Multiple control options available: o kumo cloud' smart device app for remote access o Third -party interface options o Wired or wireless controllers KA36NAHZ OUTDOOR UNIT FEATURES • The outdoor unit powers the indoor unit, and should a power outage occur, the system is automatically restarted when power returns • INVERTER -driven compressor and LEV provide high efficiency and comfort while using only the energy needed to maintain maximum performance • Hyper -heating performance offers 100% heating capacity at 5° F • Hot -Start Technology: no cold air rush at equipment startup or when restarting after Defrost Cycle • Quiet operation • Built-in base pan heater • Innovative Joint Lap DC Motor leads to high efficiency and reliability • Pulse Amplitude Modulation technology Specifications are subject to change without notice. 0 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. Cooling at 95°F/ Maximum Capacity BTU/H _ ` 36,000_ _ Rated Capacity _ BTU/H 36,000 Minimum Capacity BTU/H 14,200 Maximum Power Input W 3,760 Rated Power Input W 3,760 Moisture Removal _ Pintslh _ 8.4 Sensible Heat Factor 0.74 Power Factor [208V / 230V] % 97.0 / 97.0 Healing at 47°F' Maximum Capacity BTU/H 40,000 Rated Capacity BTU/H _ 37.000 _ Minimum Capacity BTU/H ___ 13,800 - Maximum Power Input -- W 4,160 Rated Power Input W 3,280 Power Factor [208V / 230V] % 98.0 / 98.0 Heating at 17°F3 Maximum Capacity BTU/H 37,000 Capacity BTU/H 32,800 _Rated Maximum Power Input W 5,800 Rated Power Input W 4,230 Heating at 5°F4 Maximum Capacity BTU/H 37,000 Maximum Power Input W 6,590 Heating at -13°FT Maximum Capacity BTU/H 29,600 Efficiency SEER 16.0 EER1 9.5 HSPF [IV] 9.0 COP at 47°FZ 3.3 COP at 17°F at Maximum Capacily3 1.8 COP at 5°F at Maximum Capacity' 1.6 ENERGY STAR° Certified No Electrical Voltage, Phase, Frequency 208/230,1, 60 Guaranteed Voltage Range VAC 187 - 253 Voltage: Indoor -Outdoor, S1S2 VAC 2081230 Voltage: Indoor -Outdoor, S2S3 V OC 24 Short-circuit Current Rating [SCCR] kA 5 Recommended Fuse/Breaker Size (Oudoor) A 35 Recommended Wire Size [Indoor -Outdoor] AWG 14 Power Supply Indoor unit is powered by the outdoor unit Indoor Unit MCA A 4.13 Fan Motor Full Load Amperage A 3.3 Fan Motor Type DC Motor Airflow Rate at Cooling, Dry CFM _ 767-910-910 Airflow Rate at Heating, Dry CFM 767-910-910 Sound Pressure Level (Cooling] dB[A] 35-40.42 Sound Pressure Level [Heating] dB[A] 35- O-42 External Static Pressure tn.WG 0.30-0.5-0.8 Drain Pipe Size _ In. [mm] _ 314 [19.05] Coating on Heat Exchanger — External Finish Color Hot -dip coated steel (ZAM) Unit Dimensions W x D x H: In. [mm] 21 x 21-5/8 x 43-3/4 [533 x 549 x 1,1111 Package Dimensions W x D x H: In. [mm] 21 x 28-3/4 x 48-3/8 [558 x 730 x 1,2281 _ 1191541 Unit Weight Lbs. [kg] Package Weight Lbs. [kg] _ 141 [ A) Indoor Unit Operating Temperature Range Cooling Intake Air Temp [Maximum / Minimum]' °F 90 DB, 72 WB / 68 DS, 61 WB Heating IntakeAirTemp (Maximum / Minimum] °F 77 DB / 59 DB NOTES: AHRI Rated Conditions 'Cooling (Indoor // Outdoor) °F 80 DB, 67 WB // 95 DB, 75 WB (Rated data is determined at a fixed compressor speed) 'Heating at 47°F (Indoor // Outdoor) °F 70 DB, 60 WB H 47 DB, 43 WB 3Heating at 17°F (Indoor // Outdoor) OF 70 DB, 60 WB // 17 DB, 15 WB Conditions 41-leating at 5°F (Indoor // Outdoor) °F 70 DB, 60 WB // 5 DB, 4 WB rHeating at -13°F (Indoor // Outdoor) °F 70 DB, 60 WB // -13 DB, -14 WB 'Indoor/Outdoor Unit Operating Temperature Range (Cooling Air Temp [Maximum / Minimum[): • Applications should be restricted to comfort cooling only; equipment cooling applications are not recommended for low ambient temperature conditions. "Outdoor Unit Operating Temperature Range (Cooling Thermal Lock -out / Re -start Temperatures; Heating Thermal Lock -out / Re -start Temperatures): • System cuts out in heating mode to avoid thermistor error and automatically restarts at these temperatures. Specifications are subject to change without notice. © 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. Outdoor Unit MCA A 26.0 MOCP A 42 Fan Motor Output W 74 Airflow Rate [Cooling / Heating] CFM Refrigerant Control Defrost Method 590 / 680 LEV Reverse Cycle Sound Pressure Level, Cooling' dB(A) 52 Sound Pressure Level, Heating_ dB(A) __ __53 _ Compressor Type Scroll Compressor Model ANB33FJMMT Compressor Rated Load Amps A 18 Compressor Locked Rotor Amps A 27.5 Compressor Oil [Type // Charge] oz. FV50S // 1.4,47 External Finish Color Ivory Munsell 3Y 7.8/1.1 Base Pan Heater Built-in Unit Dimensions W x D x H: In. [mm] 415/16 x 14-3/16 x 52-11/16 [1050 x 360 x 13381 Package Dimensions W x D x H: In. [mm] 43 x 18 x 57 (1110 x 480 x 14401 Unit Weight Lbs. [kg] 261 [118] Package Weight Lbs. [kg] 285 (129] Outdoor Unit Operating Temperature Range CoolingAirTemp [Maximum / Minimum]' °F 115 DB / 0 DB Healing Air Temp [Maximum / Minimum] °F 75 DB, 65 WB / -13 DB, -14 WB Healing Thermal Lock -out / Re -start Temperatures" °F -22 /-13 Refrigerant Type R410A Maximum Charge Quantity Lbs, oz 11.0, 7.0 Initial Charge Quantity Ft. [m] 100.0 [30.0] Additional Refrigerant Charge PerAddilional Piping Length oz./Ft. [g/m] 0 (0] Piping Gas Pipe Size O.D. (Flared] In.[mm] 5/8 [15.88] Liquid Pipe Size O.D. [Flared] In.[mm] 3/8 (9.52] Maximum Piping Length Ft. [m] 245 [76) Maximum Height Difference Ft. [m] 100 [30] Maximum Number of Bends 15 NOTES: AHRI Rated Conditions 'Cooling (Indoor // Outdoor) °F 80 DB, 67 WB H 95 DB, 75 WB (Rated data is determined at a fixed compressor speed) 'Heating at 47°F (Indoor // Outdoor) °F 70 DB, 60 WB H 47 DB, 43 WB 31-leating at 17°F (Indoor // Outdoor) °F 70 DB, 60 WB // 17 DB, 15 WB Conditions 41-leating at 5°F (Indoor H Outdoor) °F 70 DB, 60 WB H 5 DB, 4 WB 7Heating at-13°F (Indoor// Outdoor) °F 70 DB, 60 WB //-13 DB, -14 WB 'Indoor/Outdoor Unit Operating Temperature Range (Cooling Air Temp (Maximum / Minimum]): ° Applications should be restricted to comfort cooling only; equipment cooling applications are not recommended for low ambient temperature conditions. "Outdoor Unit Operating Temperature Range (Cooling Thermal Lock -out / Re -start Temperatures; Healing Thermal Lock -out / Re -start Temperatures): ° System cuts out in heating mode to avoid thermistor error and automatically restarts at these temperatures. Specifications are subject to change without notice. © 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. BACnet" and Modbue Interface ❑ PAC-UKPRC001-CN-1 CN24 Relay Kit ❑ CN24RELAY-KIT-CM3 Connector cable for remote display ❑ PACSA88HA-EP IT Extender ❑ PAC-WHSOiIE-E_ — kumo station' for kumo cloud* ❑ PAC-WHS0IHC-E Control Interface Remote Operation Adapter' ❑ PACSF40RM-E Thermostat Interface ❑ PAC-US444CN-1 Thermostat Interface ❑ PAC-US445CN-1 USNAPAdapter ❑ PAC-WHSOiUP-E Wireless Interface for kumo cloud' ❑ PAC-USWHS002-WF-2 Flush Mount Remote Temperature Sensor ❑ PAC-USSEN002-FM-1 Flush Mount Temperature Sensor - - --- ❑ PAGUSSEN001-FM-1 - Remote Sensor -- -- --- - - Remote Temperature Sensor ❑ PACSE41TS-E Wireless temperature and humility sensor for kumo cloud* ❑ PAC-USWHS003-TH-1 Airzone ZBS Wired Blueface Principal Controller White ❑ AZZBSBLUEFACECB Airzone ZBS Wired Lite Controller White ❑ AZZBSLITECB —_ Airzone ZBS Wired Think Controller White ❑ AZZBSTHINKCB Airzone ZBS Wireless Lite Controller White ❑ AZZBSLITERB Wired Remote Controller Airzone ZBS Wireless Think Controller While ❑ AZZBSTHINKRB Deluxe Wired MA Remote Controllers ❑ PAR40MAAU Simple MA Remote Conlrollert ❑ PAC-YT53CRAU.1 Touch MA Controllers ❑ PAR-CT01 MAU-SB kumo touch- RedUNK- Wireless Controller ❑ MHK2 Wireless Remote Controller Wireless MA Receiver ❑ PAR-FA32MA-W Wireless MA Remote Controller ❑ PAR-FL32MA-E Blue Diamond (Advanced) Mini Condensate Pump w/ Reservoir & Sensor (208/230V) [recommended] ❑ X87-721 Blue Diamond (MegaBlue Advanced) Condensate Pump w/ Reservoir & Sensor ❑ X87-835 Condensate Blue Diamond Sensor Extension Cable —15 Ft. ❑ C13-103 Refco Condensate Pump (100-240 VAC) up to 120,000 BTU/H ❑ COMB] 20/2PR, 1 PR shielded + 1 PR plenum wire for Airzone,100 ft reel ❑ CW2042S2-100 Control Wire 20/2PR, shielded + 1 PR plenum wire forAirzone, 500 ft reel ❑ CW2042S2-500 (30A/600V/UL) [fits 2' X 4' utility box] - Black ❑ TAZ-MS303 Disconnect Switch (30A/600V/UL) [fits 2' X 4' utility box] - White ❑ TAZ-MS303W Downf]ow, Kit Downfiow Kit ❑ DFK-M Electric Heat Lockout Electric Heat Lockout ❑ ETC-211020-MIT 10kW Electric Heater ❑ EHiOSVZ-M Electric Kit Heals 5kW Electric Heater ❑ EH05SVZ-M 8kW Electric Heater ❑ EH08SVZ-M 19 x 3/8' x I x 5/8" Lineset (Twin -Tube Insulalion)tt ❑ MPLS385812T-10 1OU x 3/8' x i00' x 5/8' Lineset (Twin -Tube Insulation)tt ❑ MPLS385812T-100 15' x 3/8' x 15' x 5/ir Lineset (Twin -Tube Insulation)tt ❑ MPLS385812T-15 Lineset 30' x 3/8' x 30' x 5/8' Lineset (Twin -Tube Insulation)tt ❑ MPLS385812T-30 59 x 3/8' x 59 x 5/8" Lineset (Twin -Tube Insulalion)tt ❑ MPLS385812T50 65' x 3/8' x 65' x 5/8' Uneset (Twin -Tube Insulation)tt Io MPLS385812T55 — Terminal Block Separate Terminal Power Block I ❑ SPTB1 NOTES: =PAC-SF40RM-E (Unable to use with wireless remote controller) Specifications are subject to change without notice. © 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. Air Outlet Guide ----------------- — ------ Air Outlet Guide (1 Piece) ❑ PAGSH96SG-E (two pieces are required) Centralized Drain Pan Central Drain Pan ❑ PACSH97DP-E M- & PSedes Maintenance Tool Cable Set ❑ M21 EC0397 Control/Service Tool USB/UART Conversion Cable (Required for all laptop connection) ❑ M21 EC1397 Drain Socket Drain Socket ❑ PACSH71 DS-E Hail Guards Hail Guard ❑ HG-A2 14 Gauge, 4 wire MiniSplit Cable-250 ft. roll ❑ S144-250 14 Gauge, 4 wire MiniSplit Cable-50 ft. roll ❑ S14450 MiniSplit Wire 16 Gauge, 4 wire MiniSplit Cable-250 ft. roll ❑ 5164-250 16 Gauge, 4 wire MiniSplit Cable-50 ft. roll ❑ S16450 Mounting Pad Condensing Unit Mounting Pad: 24' x 42' x 3' ❑ ULTRILITE2 Stand 18" Dual Fan Stand 24' Dual Fan Stand ❑ QSMS1802M ❑ QSMS2402M Outdoor Unit Stand —12' High ❑ QSMS1202M Specifications are subject to change without notice. 0 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. view view o26 Knockout Hole 026 Knockout Hole for electrical heat wiring o4.6 Burring Holes r electric heat Installafion� rd1y9�D5rr(yy31� 34' FPT- r4Q5y dd-, pt 19.05 314) 3]4'FPT (Horizontal ten) Secondary drain pipe (Emergency draln(ng) ol9.05(3t4) 3WFPT- Unitmm(in.) Model Nominal Filter Size Duct Connection SVZ-KP12NA 508 x 406.4 x 25.4 (20 x 16 x 1) 376 x 402 (14-13/16 x 15-7/8) SVZ-KP18NA SVZ-KP24NA SVZ-KP30NA 508 x 508 x 25.4 (20 x 20 x 1) 477 x 402 (18-13/16 x 15-7/8) SVZ-KP36NA Bview Primary draln pipe Gra041y dram 19.05(314) 3 4'FPT Control box '(Remove Blower Pa Un'Trarn in.) Note: Electrical entrance for SVZ located on both left and right side of the cabinet. See right or Left side view for knockout locations. Right side view Model A B C D E F G H J Gas Pipe Liquid pipe SVZ-KP12NA 432 (17) 376 (14-13116) 281 (11-1/8) 224 (8-7/8) 1,010.8 (39-13/16) 680 (26-13/16) 823 (32-7/16) 735.5 (29) 360 (14-3/16) o 9.52 (3/8) o 6.35 (1/4) SVZ-KP18NA o 12 7 (1/2) SVZ-KP24NA SVZ-KP30NA 534 (21) 477 (18-13/16) 382.6 (15-1/8) 266.5 (10-1/2) 1,113.8 (43-7/8) 737 (29-1116) 953.5 (37-9/16) 792 (31-3/16) 461 (18-3/16) 0 15.88 (5/8) o 9.52 (3/8) SVZ-KP36NA Specifications are subject to change without notice. 0 2022 Mitsubishi Electric Trane HVAC US LLC. All rights reserved. 1 FREE SPACE (Around the unitl The d'7gram below shows a basic example. Explarlalion of particular details are given in the unlallolian manuals etc P SERVICE SPACE 13 FOUNDATION BOLTS Dimensions of space needed Please secure the Wt firldy for service access are with 4 foundation IMIO<W3/8A bolls. shown in the below diagram. Wts and washers must he purchased totally.) Example of Notes Qi . . •Reinggeranl GAS pipe conne[Ilan (FLARE1015.8815/8F1. • • •RefngrAunt ImasD13pige connection '1 • • -Ind-lion of VALVE connection location. Piping Knock-(Dut Hole Detailes 00 CD O COO 0 A >_ W CND < Da NCo a N CI) C 7 CD N CD D W m 0 0 3 a 4 PIPING -WIRING DIRECTIONS Piping and wiring connections can be made from 4 direc8ans: FROM. Righl. Rear and Below. VV AAMITSUBISHI k ELECTRIC For use with R410A INSTALLATION MANUAL I FORINSTALLER For safe and correct use, read this manual and the indoor unit installation manual thoroughly before installing the air -conditioner unit. MANUEL VINSTALLATION I POURL'INSTALLATEUR Avant d'installer le climatiseur, lire attentivement ce manual, ainsi que le manuel d'installation de I'appareil interieur pour une utilisation sure et correcte. MANUAL DE INSTALACION PARA EL INSTALADOR Para un use correcto y seguro, lea detalladamente este manual y el manual de instalacion de la unidad interior antes de instalar la unidad de aire acondicionado. Contents 1. Safety precautions ................................................ 1 2. Installation location ............................................... 2 3. Installing the outdoor unit .......................................... 5 4. Installing the refrigerant piping ...................................... 6 5. Drainage piping work .............................................. 8 1. Safety precautions 6. Elechical work ................................................... 8 7. Test run ....................................................... 10 8. Special Functions ............................................... 10 9. System control (Fig. 9-1).......................................... 11 ► Before installing the unit, make sure you read all the "Safety precau- After installation work has been completed, explain the "Safety Precautions," use, tions". and maintenance of the unit to the customer according to the information in the ► Please report to or take consent by the supply authority before connec- Operation Manual and perform the test run to ensure normal operation. Both the tion to the system. Installation Manual and Operation Manual must be given to the user for keeping. These manuals must be passed on to subsequent users. Zt Warning: Describes precautions that must be observed to prevent danger of injury or O : Indicates a part which must be grounded. death to the user. © Caution: Zh Warning: Describes precautions that must be observed to prevent damage to the unit. Carefully read the labels affixed to the main unit. 0 Warning: • The unit must not be installed by the user. Ask a dealer or an authorized technician to install the unit. If the unit is installed incorrectly, water leak- age, electric shock, or fire may result. • For installation work, follow the instructions in the Installation Manual and use tools and pipe components specifically made for use with R410A re- frigerant. The R410A refrigerant in the HFC system is pressurized 1.6 times the pressure of usual refrigerants. If pipe components not designed for R410A refrigerant are used and the unit is not installed correctly, the pipes may burst and cause damage or injuries. In addition, water leakage, electric shock, or fire may result. • When installing the unit, use appropriate protective equipment and tools for safety. Failure to do so could cause injuries. • The unit must be installed according to the instructions in order to mini- mize the risk of damage from earthquakes, typhoons, or strong winds. An incorrectly installed unit may fall down and cause damage or injuries. • The unit must be securely installed on a structure that can sustain its weight. If the unit is mounted on an unstable structure, it may fall down and cause damage or injuries. • If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refrigerant leakage. Consult a dealer regarding the appropriate measures to prevent the allowable concentration from be- ing exceeded. Should the refrigerant leak and cause the concentration limit to be exceeded, hazards due to lack of oxygen in the room may result. • Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released. • All electric work must be performed by a qualified technician according to local regulations and the instructions given in this manual. The units must be powered by dedicated power lines and the correct voltage and circuit breakers must be used. Power lines with insufficient capacity or incorrect electrical work may result in electric shock or fire. • Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to connect the refrigerant pipes. If the pipes are not connected cor- rectly, the unit will not be properly grounded and electric shock may result. 1.1. Before installation dS Caution: • Do not use the unit in an unusual environment. If the air conditioner is installed in areas exposed to steam, volatile oil (including machine oil), or sulfuric gas, areas exposed to high salt content such as the seaside, or areas where the unit will be covered by snow, the performance can be sig- nificantly reduced and the internal parts can be damaged. • Do not install the unit where combustible gases may leak, be produced, flow, or accumulate. If combustible gas accumulates around the unit, fire or explosion may result. • The outdoor unit produces condensation during the heating operation. Make sure to provide drainage around the outdoor unit if such condensa- tion is likely to cause damage. 1.2. Before installation (relocation) dS Caution: • Be extremely careful when transporting the units. 2 or more persons are needed to handle the unit, as it weighs 20 kg, 44 Ibs or more. Do not grasp the packaging bands. Wear protective gloves to remove the unit from the packaging and to move it, as you can injure your hands on the fins or the edge of other parts. • Be sure to safely dispose of the packaging materials. Packaging materials, such as nails and other metal or wooden parts may cause stabs or other injuries. • Use only specified cables for wiring. The wiring connections must be made securely with no tension applied on the terminal connections. Also, never splice the cables for wiring (unless otherwise indicated in this document). Failure to observe these instructions may result in overheating or a fire. • The terminal block cover panel of the outdoor unit must be firmly attached. If the cover panel is mounted incorrectly and dust and moisture enter the unit, electric shock or fire may result. • When installing or relocating, or servicing the air conditioner, use only the specified refrigerant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of abnormal high pressure in the refrigerant line, and may result in an explosion and other hazards. The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst case, this could lead to a serious impediment to securing product safety. • Use only accessories authorized by Mitsubishi Electric and ask a dealer or an authorized technician to install them. If accessories are incorrectly in- stalled, water leakage, electric shock, or fire may result. • Do not alter the unit. Consult a dealer for repairs. If alterations or repairs are not performed correctly, water leakage, electric shock, or fire may result. • The user should never attempt to repair the unit or transfer it to another location. If the unit is installed incorrectly, water leakage, electric shock, or fire may result. If the air conditioner must be repaired or moved, ask a dealer or an authorized technician. • After installation has been completed, check for refrigerant leaks. If refrig- erant leaks into the room and comes into contact with the flame of a heater or portable cooking range, poisonous gases will be released. • When opening or closing the valve below freezing temperatures, refriger- ant may spurt out from the gap between the valve stem and the valve body, resulting in injuries. • When installing the unit in a hospital or communications office, be prepared for noise and electronic interference. Inverters, home appliances, high - frequency medical equipment, and radio communications equipment can cause the air conditioner to malfunction or breakdown. The air conditioner may also affect medical equipment, disturbing medical care, and communi- cations equipment, harming the screen display quality. • The base and attachments of the outdoor unit must be periodically checked for looseness, cracks or other damage. If such defects are left uncorrected,the unit may fall down and cause damage or injuries. • Do not clean the air conditioner unitwith water. Electric shock may result. • Tighten all flare nuts to specification using a torque wrench. If tightened too much, the flare nut can break after an extended period and refrigerant can leak out. 1. Safety precautions 1.3. Before electric work Zt Caution: • Be sure to install circuit breakers. If not installed, electric shock may result. • Please follow applicable federal, state, or local codes to prevent potential leakage/electric shock. Or install a ground fault interrupt for the prevention of leakage and electric shock. • For the power lines, use standard cables of sufficient capacity. Otherwise, a short circuit, overheating, or fire may result. • When installing the power lines, do not apply tension to the cables. If the connections are loosened, the cables can snap or break and overheating or fire may result. 1.4. Before starting the test run Caution: • Turn on the main power switch more than 12 hours before starting opera- tion. Starting operation just after turning on the power switch can severely damage the internal parts. Keep the main power switch turned on during the operation season. • Before starting operation, check that all panels, guards and other protective parts are correctly installed. Rotating, hot, or high voltage parts can cause injuries. • Do not touch any switch with wet hands. Electric shock may result. 1.5. Using R410A refrigerant air conditioners © Caution: • Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to connect the refrigerant pipes. Make sure the insides of the pipes are clean and do not contain any harmful contaminants such as sulfuric compounds, oxidants, debris, or dust. Use pipes with the specified thick- ness. (Refer to 4.1.) Note the following if reusing existing pipes that carried R22 refrigerant. Replace the existing flare nuts and flare the flared sections again. Do not use thin pipes. (Refer to 4.1.) • Store the pipes to be used during installation indoors and keep both ends of the pipes sealed until just before brazing. (Leave elbow joints, etc. in their packaging.) If dust, debris, or moisture enters the refrigerant lines, oil deterioration or compressor breakdown may result. • Use ester oil, ether oil, alkylbenzene oil (small amount) as the refrigeration oil applied to the flared sections. If mineral oil is mixed in the refrigeration oil, oil deterioration may result. 2. Installation location ■ KA24 j) 6A\ 251x1 16316AV ! \ Fig. 2-1 ■ KA30, KA36 mm (inch) 75,,Sz 3'be) mm (inch) J 11A9 SSS4J Fig. 2-2 • Be sure to ground the unit. Do not connect the ground wire to gas or water pipes, lighting rods, or telephone grounding lines. If the unit is not properly grounded, electric shock may result. • Use circuit breakers (ground fault interrupter, isolating switch (+B fuse), and molded case circuit breaker) with the specified capacity. If the circuit breaker capacity is larger than the specified capacity, breakdown or fire may result. • Do not touch the refrigerant pipes with bare hands during operation. The refrigerant pipes are hot or cold depending on the condition of the flowing refrigerant. If you touch the pipes, burns or frostbite may result. • After stopping operation, be sure to wait at least five minutes before turn- ing off the main power switch. Otherwise, water leakage or breakdown may result. • Do not use refrigerant other than R410A refrigerant. If another refrigerant is used, the chlorine will cause the oil to deteriorate. • Use the following tools specifically designed for use with R410A refrigerant. The following tools are necessary to use R410A refrigerant. Contact your nearest dealer for any questions. Tools (for R410A) Gauge manifold Flare tool Charge hose Size adjustment gauge Gas leak detector Vacuum pump adapter Torque wrench Electronic refrigerant charging scale • Be sure to use the correct tools. If dust, debris, or moisture enters the re- frigerant lines, refrigeration oil deterioration may result. • Do not use a charging cylinder. If a charging cylinder is used, the composi- tion of the refrigerant will change and the efficiency will be lowered. 2.1. Refrigerant pipe (Fig. 2-1) ► Check that the difference between the heights of the indoor and outdoor units, the length of refrigerant pipe, and the number of bends in the pipe are within the limits shown below. C9 Pipe length (one way) @Height difference @Number of bends (one way) Max. 30 m, 100 ft I Max. 30 m,100 ft I Max. 15 • Height difference limitations are binding regardless of which unit, indoor or out- door, is positioned higher. �DD Indoor unit @ Outdoor unit 2.2. Choosing the outdoor unit installation location Avoid locations exposed to direct sunlight or other sources of heat. Select a location from which noise emitted by the unit will not inconvenience neighbors. Select a location permitting easy wiring and pipe access to the power source and indoor unit. Avoid locations where combustible gases may leak, be produced, flow, or accu- mulate. Note that water may drain from the unit during operation. Select a level location that can bear the weight and vibration of the unit. Avoid locations where the unit can be covered by snow. In areas where heavy snow fall is anticipated, special precautions such as raising the installation loca- tion or installing a hood on the air intake must be taken to prevent the snow from blocking the air intake or blowing directly against it. This can reduce the airflow and a malfunction may result. Avoid locations exposed to oil, steam, or sulfuric gas. Use the transportation handles of the outdoor unit to transport the unit. If the unit is carried from the bottom, hands or fingers may be pinched. 2.3. Outline dimensions (Outdoor unit) (Fig. 2-2) 9 2. Installation location Fig. 2-3 Fig. 2-4 <z hl �tu'fIll Fig. 2-5 [en 2.4. Ventilation and service space 2.4.1. Windy location installation When installing the outdoor unit on a rooftop or other location unprotected from the wind, situate the air outlet of the unit so that it is not directly exposed to strong winds. Strong wind entering the air outlet may impede the normal airflow and a malfunction may result. The following shows three examples of precautions against strong winds. CD Face the air outlet towards the nearest available wall about 500 mm, 19-11/16 inch away from the wall. (Fig. 2-3) n Install an optional air protect guide if the unit is installed in a location where strong winds from a typhoon, etc. may directly enter the air outlet. (Fig. 2-4) OA Air protect guide OO Position the unit so that the air outlet blows perpendicularly to the seasonal wind direction, if possible. (Fig. 2-5) n Wind direction 2. Installation location 2.4.2. When installing a single outdoor unit Minimum dimensions are as follows, except for Max., meaning Maximum dimen- sions, indicated. The figures in parentheses are for KA30, 36 models. Refer to the figures for each case. (D Obstacles at rear only (Fig. 2-6) Obstacles at rear and above only (Fig. 2-7) O Obstacles at rear and sides only (Fig. 2-8) ® Obstacles at front only (Fig. 2-9) ` When using an optional air outlet guide, the clearance for KA30, 36 models is 500 mm, 19-11/16 inch or more. OO Obstacles at front and rear only (Fig. 2-10) • When using an optional air outlet guide, the clearance for KA30, 36 models is 500 mm, 19-11/16 inch or more. <ei Obstacles at rear, sides, and above only (Fig. 2-11) • Do not install the optional air outlet guides for upward airflow. Fig. 2-6 0117.1l f o 0 111 o v ryoo�`ti�l Fig. 2-7 000l` `A 00�� / 6PCa p1\poll Fig. 2-10 0`1�l s @;i 0 0 o v Fig. 2-13 760 2.4.3. When installing multiple outdoor units Leave 25 mm, 1 inch space or more between the units. O0 Obstacles at rear only (Fig. 2-12) n Obstacles at rear and above only (Fig. 2-13) • No more than three units must be installed side by side. In addition, leave space as shown. • Do not install the optional air outlet guides for upward airflow. O Obstacles at front only (Fig. 2-14) When using an optional air outlet guide, the clearance for KA30, 36 models is 1000 mm, 39-3/8 inch or more. ® Obstacles at front and rear only (Fig. 2-15) ' When using an optional air outlet guide, the clearance for KA30, 36 models is 1000 mm, 39-3/8 inch or more. n Single parallel unit arrangement (Fig. 2-16) ' When using an optional air outlet guide installed for upward airflow, the clearance is 500 (1000) mm, 19-11/16 (39-3/8) inch or more. © Multiple parallel unit arrangement (Fig. 2-17) ' When using an optional air outlet guide installed for upward airflow, the clearance is 1000 (1500) mm, 39-3/8 (59-1116) inch or more. i Stacked unit arrangement (Fig. 2-18) • The units can be stacked up to two units high. • No more than two stacked units must be installed side by side. In addition, leave space as shown. mm [inch] (°!�l of r �b.tY 900\ lo0�J Fig. 2-8 0 V-1N 1000 (1500) Ct [ao (so)) Fig. 2-11 Fig. 2-14 300(500) [12 (20)) Fig. 2-12 � `'o Fig. 2-15 �^ool y000�32l1 F Fig. 2-16 Fig. 2-17 Fig. 2-18 51 3. Installing the outdoor unit en ® KA24 <Pitch of the foundation bolt> ■ KA30, KA36 Min. 360 (14-11164) <Pitch of the foundation bolt> 600 m M B 0 r� X c0 OA M10(3/8")bolt (0) Base © As long as possible. OD Vent OO Set deep in the ground. mm (inch) Min. 475 (18-45164) mm (inch) ro M rn Min. 25(1) PW64) 225(8-55�4) N 0 1050 (41-11/32) Fig. 3-1 Be sure to install the unit in a sturdy, level surface to prevent rattling noises dur- ing operation. (Fig. 3-1) <Foundation specifications> Foundation bolt M10 (3/8") Thickness of concrete 120 mm, 4-23132 inch Length of bolt 70 mm, 2-3/4 inch Weight -bearing capacity 320 kg, 264 Ibs Make sure that the length of the foundation boll is within 30 mm, 1-3/16 inch of the bottom surface of the base. Secure the base of the unit firmly with four-M10 foundation bolts in sturdy locations. Installing the outdoor unit Do not block the vent. If the vent is blocked, operation will be hindered and break- down may result. In addition to the unit base, use the installation holes on the back of the unit to at- tach wires, etc., if necessary to install the unit. Use self -tapping screws (e5 X 15 mm, e13/16 x 19/32 inch or less) and install on site. dS Warning: • The unit must be securely installed on a structure that can sustain its weight. If the unit is mounted on an unstable structure, it may fall down and cause damage or injuries. • The unit must be installed according to the instructions in order to minimize the risk of damage from earthquakes, typhoons, or strong winds. An incor- rectly installed unit may fall down and cause damage or injuries. 5 4. Installing the refrigerant piping X 45`±Z OA Flare cutting dimensions OO Flare nut tightening torque ® (Fig. 4-1) 4.1. Precautions for devices that use R410A refrigerant • Refer to 1.5. for precautions not included below on using air conditioners OA Liquid pipe with R410A refrigerant. Use ester oil, ether oil, alkylbenzene oil (small amount) as the refrigeration e Gas r pipe © Insulation oil applied to the flared sections. OD Taping Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to connect the refrigerant pipes. Use refrigerant pipes with the thick- nesses specified in the table to the below. Make sure the insides of the pipes are clean and do not contain any harmful contaminants such as sul- furic compounds, oxidants, debris, or dust. © mm (inch) C D Fig. 4-2 Copper pipe O.D. Co Pp p p Flare dimensions oA dimensions (mm) (inch) (mm) (inch) e6.35 1/4" 8.7 - 9.1 11/32 - 23/64 e9.52 3/8" 12.8 - 13.2 1/2 - 33/64 o12.7 1/2" 16.2-16.6 41/64-21/32 e 15.88 5/8" 19.3 - 19.7 49/64 - 25/32 & (Fig. 4-1) Copper pipe O.D. Flare nut O.D. Tightening torque (mm) (inch) (mm) (inch) (N-m) (ft-lbs) o6.35 1/4" 17 43/64 14 - 18 10 - 13 o9.52 3/8" 22 7/8 34 - 42 25 - 30 o 12.7 1/2" 26 1 - 3/64 49 - 61 35 - 44 e15.88 5/8" 29 1 - 9/64 68 - 82 49 - 59 ' C I ' D �OC o B A Front piping cover E Piping cover O Stop valve col Service panel T) Bend radius: 100 mm, 3-15/16 inch-150 mm, 5-27/32 inch Fig. 4-3 Warning: When installing or relocating, or servicing the air conditioner, use only the specified refrigerant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. If air is mixed with the refrigerant, then it can be the cause of abnormal high pres- sure in the refrigerant line, and may result in an explosion and other hazards. The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst case, this could lead to a serious impediment to securing product safety. e9.52 mm, 3/8inch Liquid pipe thickness 0.8 mm, 1/32 inch e15.88 mm, 5/8 inch Gas pipe thickness 1.0 mm, 3/64 inch • Do not use pipes thinner than those specified above. 4.2. Connecting pipes (Fig. 4-1, Fig. 4-2) When commercially available copper pipes are used, insulate both the liquid and gas pipes separately with commercially available insulation materials (heal -resis- tant to 100°C, 212°F or more, thickness of 12 mm, 1/2 inch or more). • The indoor parts of the drain pipe should be wrapped with polyethylene foam insula- tion materials (specific gravity of 0.03, thickness of 9 mm, 23/64 inch or more). [Fig. 4-2] Apply thin layer of refrigerant oil to pipe and joint seating surface before tighten- ing flare nut. ,3A Use two wrenches to tighten piping connections. 0 Use leak detector or soapy water to check for gas leaks after connections are completed. Apply refrigerating machine oil over the entire flare seat surface. C Use the flare nuts for the following pipe size. g) Gas side I Pipe size (mm, inch) o15.88, 5/8" Liquid side Pipe size (mm, inch) I o9.52, 3/8" *:The flare nut is supplied as an outdoor unit accessory. Be sure to use it otherwise gas leakage or even pipe extraction may occur. When bending the pipes, be careful not to break them. Bend radii of 100 mm, 3-15/16 inch to 150 mm, 5-27/32 inch are sufficient. Make sure the pipes do not contact the compressor. Abnormal noise or vibration may result. r0 Pipes must be connected starting from the indoor unit. Flare nuts must be tightened with a torque wrench. C2) Flare the liquid pipes and gas pipes and apply a thin layer of refrigeration oil (Applied on site). © Warning: When installing the unit, securely connect the refrigerant pipes before start- ing the compressor. 4.3. Refrigerant piping (Fig. 4-3) Remove the service panel n (3 screws) and the front piping cover @ (2 screws) and rear piping cover 8 (2 screws: KA24) (4 screws: KA30, KA36). PO Perform refrigerant piping connections for the indoor/outdoor unit when the out- door unit's stop valve is completely dosed. OO Vacuum -purge air from the indoor unit and the connection piping. After connecting the refrigerant pipes, check the connected pipes and the indoor — unit for gas leaks. (Refer to 4.4 Refrigerant pipe airtight testing method) O Vacuumize the refrigerant lines through the service port of the liquid stop valve and then open the stop valves completely (for both the liquid and gas stop valves). This will completely connect the refrigerant lines of the indoor and outdoor units. If the stop valves are left dosed and the unit is operated, the compressor and control valves will be damaged. Use a leak detector or soapy water to check for gas leaks at the pipe connec- tion sections of the outdoor unit. Do not use the refrigerant from the unit to purge air from the refrigerant lines. After the valve work is completed, tighten the valve caps to the correct torque: 20 to 25 N-m, 14 to 18 ft-lbs (200 to 250 kgf•cm). Failure to replace and tighten the caps may result in refrigerant leakage. In addition, do not damage the insides of the valve caps as they act as a seal to prevent refrigerant leakage. iP Use sealant to seal the ends of the thermal insulation around the pipe connec- tion sections to prevent water from entering the thermal insulation. 4. Installing the refrigerant piping H (2) a O OA OO O 0 � 0 E ACGB ��- off,i�Localpipe D Sealed, same way for gas side rgl Stop valve <Gas side> © Pipe cover 0 Stop valve <Liquid side> iR Do not use a wrench here. c Service port Refrigerant leakage may result. �Do Open/Close section Fig. 4-4 OO Use two wrenches here. rG Fig. 4-5 Fig. 4-6 4.4. Refrigerant pipe airtight testing method (Fig. 4-4) (1) Connect the testing tools. Make sure the stop valves O 8 are closed and do not open them. Add pressure to the refrigerant lines through the service port Cc of the liquid stop valve (U. (2) Do not add pressure to the specified pressure all at once; add pressure little by little. D Pressurize to 0.5 MPa (5 kgf/cm2G), wait five minutes, and make sure the pressure does not decrease. 1) Pressurize to 1.5 MPa (15 kgf/cmzG), wait five minutes, and make sure the pressure does not decrease. n Pressurize to 4.15 MPa (41.5 kgf/cmzG) and measure the surrounding temperature and refrigerant pressure. (3) If the specified pressure holds for about one day and does not decrease, the pipes have passed the test and there are no leaks. • If the surrounding temperature changes by 1 °C, the pressure will change by about 0.01 MPa (0.1 kgf/cm2G). Make the necessary corrections. (4) If the pressure decreases in steps (2) or (3), there is a gas leak. Look for the source of the gas leak. 4.5. Stop valve opening method (1) Gas side (Fig. 4-5) O Remove the cap and turn the valve rod counterclockwise as far as it will go with the use of a 4 mm hexagonal wrench. Stop turning when it hits the stopper. lot5,88, 5/8 inch: Approximately 11 revolutions) 1) Make sure that the stop valve is open completely and rotate the cap back to its original position. (2) Liquid side (Fig. 4-6) 01 Remove the cap and turn the valve rod counterclockwise as far as it will go with the use of a 4 mm hexagonal wrench. Stop turning when it hits the stopper. (06.35, 1/4 inch: Approximately 4.5 revolutions) (09.52, 3/8 inch: Approximately 10 revolutions) Make sure that the stop valve is open completely and rotate the cap back to its original position. n9 Valve body 4H: Double spanner section o Unit side (Do not apply a spanner other than to this sec- t Cap tion.Doing so would cause refrigerant leaks.) QD Local pipe side OO Seal section (7 Pipe cover (Seal the end of the heat insulation material at 7 Service port the pipe connection section with whatever seal Valve stem material you have on hand so that water does not infiltrate the heat insulation material.) Refrigerant pipes are protectively wrapped • The pipes can be protectively wrapped up to a diameter of o90 mm, 3-35/64 inch before or after connecting the pipes. Cut out the knockout in the pipe cover fol- lowing the groove and wrap the pipes. Pipe inlet gap • Use putty or sealant to seal the pipe inlet around the pipes so that no gaps re- main.(If the gaps are not closed, noise may be emitted or water and dust will enter the unit and breakdown may result.) The figure to the left is an example only. Precautions when using the charge valve (Fig.4-7) The stop valve shape, service port po- Do not tighten the service port too much when installing it otherwise the valve sition, etc., may vary according to the core could be deformed and become loose causing a gas leak. model. After positioning section n in the desired direction, turn section n only and tighten it. Turn section n only. Do not further tighten sections n and (D together after tightening section n. (Do not further tighten sections nA and OO together.) it Warning: When opening or closing the valve below freezing temperatures, refrigerant c0 Charge hose may spurt out from the gap between the valve stem and the valve body, re- 01 Service port sulting in injuries. Fig. 4-7 4.6. Addition of refrigerant Additional charging is not necessary if the pipe length does not exceed 30 m, 100 ft If the pipe length exceeds the specified length above, charge the unit with addi- tional R410A refrigerant according to the permitted pipe lengths in the chart below. When the unit is stopped, charge the unit with the additional refrigerant through the liquid stop valve after the pipe extensions and indoor unit have been vacu- umized. When the unit is operating, add refrigerant to the gas check valve using a safety charger. Do not add liquid refrigerant directly to the check valve. After charging the unit with refrigerant, note the added refrigerant amount on the service label (attached to the unit). Refer to the "1.5. Using R410A refrigerant air conditioners" for more information. Be careful when installing multiple units. Connecting to an incorrect indoor unit can lead to abnormally high pressure and have a serious effect on operation per- formance. Model Max pipe length Max height difference Additional refrigerant charging amount 20 m 24 m 27 m 30 m 70 ft 80 ft 90 ft 100 ft KA24 30 m, 100 ft 30 m, 100 ft 0 0.2 kg 7 oz 0.4 kg 14 oz 0.6 kg 21 oz KA30,36 30 m,100ft 30 m,100ft 0 0 0 0 5. Drainage piping work Outdoor unit drainage pipe connection When drain piping is necessary, use the drain socket or the drain pan (option). Drain socket * PAC-SH71DS-E Drain pan * KA24 PAC-SG64DP-E KA30/36 PAC-SH97DP-E * Do not use the drain pipe in cold climates as it may freeze. 6. Electrical work 6.1. Outdoor unit (Fig. 6-1, Fig. 6-2) n Remove the service panel. (7 Wire the cables referring to the Fig. 6-1 and the Fig. 6-2. Indoor unit 3) Outdoor unit l Remote controller 3D Main switch (Breaker) l Earth For Power QD OO OA QA DOE = OE © = OE Fig. 6-1 (A) Earth terminal 08 Terminal block © Clamp (0 Service panel OE Wire the cables so that they do not contact the center of the service panel or the gas valve. Fig. 6-2 CONDUIT PLATE: accessory c'�iulu uuu �13lre�a •• �; rnnln •' n�mn E:? 6. Electrical work 6.2. Field electrical wirina Outdoor unit model KA24 KA30 KA36 Outdoor unit power supply Single, 208/230 V, 60 Hz Single, 208/230 V, 60 Hz Single, 208/230 V, 60 Hz Breaker size -4 25 A 35 A 35 A Minimum circuit ampacity 17 A 24 A 26 A Maximum rating of overcurrent protective device 27 A 40 A 42 A Outdoor unit power supply 2 x Min. AWG 12 2 x Min. AWG 10 m x Outdoor unit power supply earth 1 x Min. AWG 12 1 x Min. AWG 10 __ Z '! Indoor unit -Outdoor unit '1 3 x AWG 14 (polar) 2 H Indoor unit earth '1 1 x Min. AWG 14 Remote controller -Indoor unit -2 2 x AWG 22 (Non -polar) Outdoor unit L1-L2 '3 208/230 VAC Indoor unit -Outdoor unit S1-S2 '3 208/230 VAC U Indoor unit -Outdoor unit S2-S3 '3 24 VDC Remote controller -Indoor unit '3 12 VDC '1. Max. 45 m, 147 it If 2.5 mmz used, Max. 50 m, 164 ft If 2.5 mmz used and S3 separated, Max. 80 in, 262ft '2. The 10 m, 30 it wire is attached in the remote controller accessory. Max 1500 it '3. The figures are NOT always against the ground. S3 terminal has 24 VDC against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulataed by the transformer or other device. '4. Please follow applicable federal, state, or local codes to prevent potential leakage/electric shock. Or install a ground fault interrupt for the prevention of leakage and electric shock. Notes: 1. Wiring size must comply with the applicable local and national code. 2. Use copper supply wires. 3. Use wires rated 600V or more for the power supply cables and the indoor/outdoor unit connecting cables. 4. Install an earth longer than other cables. 208/230V Single phase Isolator 3 poles isolator S1 S1 A -Control S2 i S2 A -Control Outdoor Unit Indoor Unit S3 S3 ds Warning: In case of A -control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3 terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type. © Warning: • Turn on the main power when the ambient temperature is -20°C, -4°F or higher. • In below -20°C, -4°F condition, it needs at least 4hr standby to operate in order to warm the electrical parts. Never splice the power cable or the indoor -outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure. 7en 7. Test run 7.1. Before test run • To operate the compressor with refrigerant accumulated in the compressor, the ► After completing installation and the wiring and piping of the indoor and compressor must be warmed up at least 12 hours to prevent breakdown. outdoor units, check for refrigerant leakage, looseness in the power supply 4. If the insulation resistance rises above 1 MO, the compressor is not faulty. or control wiring, wrong polarity, and no disconnection of one phase in the supply. ► Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1 MQ, ► Do not carry out this test on the control wiring (low voltage circuit) terminals. © Warning: Do not use the air conditioner if the insulation resistance is less than 1 MO. Insulation resistance After installation or after the power source to the unit has been cut for an extended period, the insulation resistance will drop below 1 MO due to refrigerant accumulat- ing in the compressor. This is not a malfunction. Perform the following procedures. 1. Remove the wires from the compressor and measure the insulation resistance of the compressor. 2. If the insulation resistance is below 1 MO, the compressor is faulty or the resis- tance dropped due the accumulation of refrigerant in the compressor. 3. After connecting the wires to the compressor, the compressor will start to warm up after power is supplied. After supplying power for the times indicated below, measure the insulation resistance again. • The insulation resistance drops due to accumulation of refrigerant in the com- pressor. The resistance will rise above 1 MO after the compressor is warmed up for two to three hours. (The time necessary to warm up the compressor varies according to atmo- spheric conditions and refrigerant accumulation.) 7.2. Test run 7.2.1. Using SW4 in outdoor unit SW4-1 ON Cooling operation SW4-2 OFF SW4-1 ON Heating operation SW4-2 ON After performing the test run, set SW4-1 to OFF. 8. Special Functions OA © OO r- - n--------------------i i---------- i i � i i as e i CNOP.9 x x Fig. $-1 9 SWt II I I Red I 3 Circuit diagram example (low noise mode) Q Outdoor unit control board n On -site arrangement OO Max. 10 m, 33 ft c External input adapter (PAC-SC36NA-E) OF Power supply for relay X: Relay &I Caution: • The compressor will not operate unless the power supply phase connection is correct. • Turn on the power at least 12 hours before starting operation. Starting operation immediately after turning on the main power switch can result in severe damage to internal parts. Keep the power switch turned on during the operational season. ► The followings must be checked as well. • The outdoor unit is not faulty. LED1 and LED2 on the control board of the outdoor unit flash when the outdoor unit is faulty. Both the gas and liquid stop valves are completely open. A protective sheet covers the surface of the DIP switch panel on the control board of the outdoor unit. Remove the protective sheet to operate the DIP switches easily. Make sure that the all of the SW5 DIP switches for function changes on the con- trol board of the outdoor unit are set to OFF. If all of the SW5 switches are not set to OFF, record the settings and then set all of the switches to OFF. Begin recov- ering the refrigerant. After moving the unit to a new location and completing the test run, set the SW5 switches to the previously recorded settings. After power is supplied, a small clicking noise may be heard from the inside of the outdoor unit. The electronic expansion valve is opening and closing. The unit is not faulty. A few seconds after the compressor starts, a clanging noise may be heard from the inside of the outdoor unit. The noise is coming from the check valve due to the small difference in pressure in the pipes. The unit is not faulty. The test run operation mode cannot be changed by DIP switch SW4-2 during the test run. (To change the test run operation mode during the test run, stop the test run by DIP switch SW4-1. After changing the test run operation mode, resume the test run by switch SW4-1.) 7.2.2. Using remote controller Refer to the indoor unit installation manual. Note: Occasionally,vapor that is made by the defrost operation may seem as if smoke come up from the outdoor unit. 8.1. Low noise mode (on -site modification) (Fig. 8-1) By performing the following modification, operation noise of the outdoor unit can be reduced by about 3-4 dB. The low noise mode will be activated when a commercially available timer or the contact input of an ON/OFF switch is added to the CNDM connector (option) on the control board of the outdoor unit. • The ability varies according to the outdoor temperature and conditions, etc. n Complete the circuit as shown when using the external input adapter (PAC-SC36NA-E). (Option) 1) SW7-1 (Outdoor unit control board): OFF (Operation of KA24) ® SW1 ON: Low noise mode SW1 OFF: Normal operation 8. Special Functions - I---------------- ---- ......... I 1 Oa i CND.M iM.L.,Fig. 8-2 swt sva II I 1 Red 3 ._._-_._._._._ii._._._._.i CA) Circuit diagram example (Demand function) V On -site arrangement X, Y: Relay (V External input adapter (PAC-SC36NA-E) ,7 Outdoor unit control board �P Max. 10 m, 33 ft T) Power supply for relay 8.3. Refrigerant collecting (pump down) Perform the following procedures to collect the refrigerant when moving the indoor unit or the outdoor unit. (D Supply power (circuit breaker). * When power is supplied, make sure that "CENTRALLY CONTROLLED" is not displayed on the remote controller. If "CENTRALLY CONTROLLED" is dis- played, the refrigerant collecting (pump down) cannot be completed normally. * Start-up of the indoor -outdoor communication takes about 3 minutes after the power (circuit breaker) is turned on. Start the pump -down operation 3 to 4 minutes after the power (circuit breaker) is turned ON. 1D After the liquid stop valve is closed, set the SWP switch on the control board of the outdoor unit to ON. The compressor (outdoor unit) and ventilators (indoor and outdoor units) start operating and refrigerant collecting operation begins. LED1 and LED2 on the control board of the outdoor unit are lit. Only set the SWP switch (push-button type) to ON if the unit is slopped. However, even if the unit is stopped and the SWP switch is set to ON less than 3 minutes after the compressor stops, the refrigerant collecting operation cannot be performed. Wait until compressor has been stopped for 3 minutes and then set the SWP switch to ON again. 9. System control (Fig. 9-1) ,E) SW 1-3 to 1 6 ON :A) Outdoor unit OFF J Indoor unit 3 4 5 6 n Master remote controller 0 Subordinate remote controller OF SW 1-3 to 1-6 ON 1) Standard 1:1 (Refrigerant address = 00) OFF Simultaneous twin (Refrigerant address = 01) 3 4 5 6 Simultaneous twin (Refrigerant address = 02) ©SW1-3to1-6 ON OFF 3 4 5 6 A ( 0 �TTTB1 ) _TB1 T4 T84T8404 T8� TT85eT_ 1 © 0 Fig. 9-1 8.2. Demand function (on -site modification) (Fig. 8-2) By performing the following modification, energy consumption can be reduced to 0-100% of the normal consumption. The demand function will be activated when a commercially available timer or the contact input of an ON/OFF switch is added to the CNDM connector (option) on the control board of the outdoor unit. T1 Complete the circuit as shown when using the external input adapter (PAC-SC36NA-E). (Option) 1) By setting SW7-1 on the control board of the outdoor unit, the energy consumption (compared to the normal consumption) can be limited as shown below. SW7-1 SW2 SW3 Energy consumption Demand function ON OFF OFF 100% ON O ON O N .5e� 5 0% OFF ON 0% (Stop) (T Because the unit automatically stops in about 2 to 3 minutes when the refriger- ant collecting operation is completed (LED1 off, LED2 lit), be sure to quickly close the gas stop valve. If LED1 is lit and LED2 is off and the outdoor unit is stopped, refrigerant collection is not property performed. Open the liquid stop valve completely, and then repeat step) after 3 minutes have passed. If the refrigerant collecting operation has been completed normally (LED1 off, LED2 lit), the unit will remain stopped until the power supply is turned off. ® Turn off the power supply (circuit breaker). * Note that when the extension piping is very long with large refrigerant amount, it may not be possible to perform a pump -down operation. When performing the pump -down operation, make sure that the low pressure is lowered to near 0 MPa (gauge). © Warning: When pumping down the refrigerant, stop the compressor before disconnect- ing the refrigerant pipes. The compressor may burst if air etc, get into it. * Set the refrigerant address using the DIP switch of the outdoor unit. n Wiring from the Remote Control This wire is connected to T135 (terminal board for remote controller) of the indoor unit (non -polar). 13) When a Different Refrigerant System Grouping is Used. Up to 16 refrigerant systems can be controlled as one group using the slim MA remote controller. Note: In single refrigerant system (twin), there is no need of wiring 11. SWt Function table <SW1> ON nn0000 P..._.. O eration according to switch setting Function ON OFF 1 Compulsory Start Normal defrosting SWt 2 Error history Clear Normal clear function settings 3 Refrigerant Settings for outdoor unit addresses 4 system ad- 0 to 15 5 dress setting 6 `ml Product Data Performance e' SERIES Carrier air conditioners with Puron o refrigerant provide a collection of features unmatched by any other family of equipment. The 24AHA4 has been designed utilizing Carrier's Puron refrigerant. This environmentally sound refrigerant allows you to make a responsible decision in the protection of the earth's ozone layer. NOTE: Ratings contained in this document are subject to change at any time. Always refer to the AHRI directory (www.ahridirectory.org) for the most up—to—date ratings information. INDUSTRY LEADING FEATURES/BENEFITS Energy Efficiency • 14 SEER/11.7 — 12.2 EER (Based on tested combinations) Sound • Levels as low as 66 dBA Design Features • Small footprint • WeatherArmor- cabinet — All steel cabinet construction — Mesh coil guard Reliability, Quality and Toughness • Scroll compressor • Factory —supplied filter drier • High pressure switch • Line lengths up to 250' (76.2 m) • Low ambient operation (down to—20°F/-28.9°C with low ambient accessories) MODEL NUMBER NOMENCLATURE 1 2 3 4 5 6 7 8 9 10 11 12 13 N N A A A/N N N N A/N A/N A/N N N 2 4 A H A 4 1 8 A 0 0 3 0 Product Series Product Family Product Type Major Series SEER Cooling Capacity Variations A= Open 0= Open 0= Voltage 3208/230-1 Minor Series _ H 4 = 14 24=AC A = AC Horizontal SEER Standard Not Not 5:2oa/230-3 0, 1, 2... Discharge Defined Defined 6=460/3 Use of the AHRI Certified TM Mark indicates a manufacturers participation in the program For verification of certification for individual products, go to %mwi. ahrid ireclory.org. PHYSICAL DATA UNIT SIZE — SERIES 18-30 24-30 30-30 36-30,50,60 48-30,50,60 60-30,50,60 COMPRESSOR TYPE Scroll REFRIGERANT Puron® (R-410A) Charge lb (kg) 6.40 (2.90) 6.50 (2.95) 8 60 (3.90) 8.90 (4.04) 9.00 (4.08) 10.60 (4.81) COND FAN Propeller Type, Direct Drive _ Air Discharge Air Oty (CFM) 1285 1285 Horizontal 1900 2615 2615 2785 Motor HP - - - 1/12 1/12 1/10 1/4 1/4 1/4 Motor RPM 800 800 800 800 800 800 COND COIL Face Area (Sq ft) 7.3 7.3 12.1 12.1 _ 12.1 14.1 Fins per In. 20 20 20 20 20 20 Rows 2 2 2 2 2 2 Circuits 3 3 3 3 3 4 VALVE CONNECT. (In. ID) -- _ Vapor 5//� 3/4 3/4 7/8 7/8 7/8 Liquid 3/8 REFRIGERANT TUBES* (In. OD) Rated Vapor* 5/8 3/4 3/4 7/8 7/8 1 1/8 Max Liquid Linet 3/8 * Units are rated with 25 ft (7.6 m) of lineset length. See Vapor Line Sizing and Cooling Capacity Loss table when using other sizes and lengths of lineset. Note: See unit Installation Instruction for proper installation. t See Liquid Line Sizing For Cooling Only Systems with Puron Refrigerant tables. ELECTRICAL DATA UNIT SIZE - voltage,series 18-30 V/PH 208/230/1 208/230/3 460/3 OPER MAX 253 253 j _. 506 VOLTS* MIN 197 197 414 COMPR LRA 56.3 62.9 73.0 77.0 RLA 9.0 10.9 14.1 14.1 FAN FLA 0.50 0.50 0.70 1.20 MCA 11.8 14.1 18.3 18.8 MAX FUSE** or CKT BRK AMPS 20 25 30 30 24-30 30-30 36-30 48-30 _ 124.0 _ 18.5 1.20 24.3 40 60-30 36-50 152.5 71.0 23.7 9.0 1.45 -- 1.20 31.1 12.5 50 20 1 48-50 60-50 36-60 48-60 60-60- 83.1 13.7 1.20 18.3 30 -- 110.0 38.0 41.0 52.0 - 15.9 -- 5.6 6.2 7.1 -- 1.45 0.60 0.70 0 0 21.4 7.6 8.5 9.7 35 ------- -- 15 15 LEGEND: FLA - Full Load Amps HACR - Heating, Air Conditioning, Refrigeration LRA - Locked Rotor Amps NEC - National Electrical Code RLA - Rated Load Amps (compressor) * Permissible limits of the voltage range at which the unit will operate satisfactorily ** Time -Delay fuse. Complies with 2007 requirements of ASHRAE Standards 90.1 A -WEIGHTED SOUND POWER (dBA) Unit Size Standard Rating (dBA) Typical Octave Band Spectrum (dBA, without tone adjustment) - -- - 125 - 250 500 1000 2000 4000 8000 18 69 50.5 57.0 59.5 64.5 60.5 53.5 43.0 24 66 50.5 58.5 60.5 59.5 56.5 51.0 41.5 30 68 55.5 59.5 61.5 63.5 60.0 58.0 49.5 36 71 59.5 59.5 65.5 62.0 _ 55.0 _ 48 70 57.5 _ _62.0 59.5 64.0 66.0 63.0 60.5 54_.5 60 73 60.0 61.5 64.5 67.0 66.0 65.5 58A NOTE: Tested in accordance with AHRI Standard 270-08 (not listed in AHRI). A -WEIGHTED SOUND POWER (dBA) WITH ACCESSORY SOUND SHEILD Standard Unit Size Rating (dBA) 18 68 24 65 30 68 36 71 48 70 - 60 73 -- 125 52.5 54.5 55.0 59.5 57.5 61.0 Typical 250 58.00 57.5 60.0 59.5 59.5 - 62.0 Octave Band 500 58.5 59.5 F 61.5 62.5 63.0 - 64.0 Spectrum (dBA, 1000 64.5 59.0 62.5 65.0 65.0 --- 67.0 without tone adjustment) 2000 4000 59.5 52.5 56.0 50.5 60.0 _ 58.0 63.0 61.5 62.5 60.0 - 65.5 65.5 8000 42.5 40.5___ 49.5 55.0 54.0 57.5 -� NOTES: Tested in accordance with AHRI Standard 270-08 (not listed in AHRI). CHARGING SUB -COOLING (TXV-TYPE EXPANSION DEVICE) UNIT SIZE -SERIES - - REQUIRED SUBCOOLING °F (°C) 18 12(6.7) - 24 12(6.7) - 30 - - -- - 12(6.7) - - - 4.4) 48 12 -- 60 10 (5.6) oc DIMENSIONS - ENGLISH OEM co co O co • O (O t%) X = YES Ch 0 = NO M 0 M cj O N m Co O N O N MINIMUM UNIT SIZE MOUNTING PAD DIMENSIONS 18,24 23" X 42" 30,36.48,60 24' X 50" 1. CLEARANCE REQUIREMENTS: SINGLE UNIT APPLICATIONS: WITH COIL FACING WALL: ALLOW 6 IN. MINIMUM CLEARANCE ON COIL SIDE AND COIL END AND 20 IN. MINIMUM CLEARANCE ON FAN SIDE. WITH FAN FACING WALL: ALLOW 8 IN, MINIMUM CLEARANCE ON FAN SIDE AND 6 IN. ON COIL END AND 20 IN. MINIMUM CLEARANCE ON COIL SIDE. MULTI -UNIT APPLICATIONS: ALLOW 24 IN. MINIMUM CLEARANCE BETWEEN FAN AND COIL SIDES OF MULTIPLE UNITS, ARRANGE UNITS SO DISCHARGE OF ONE DOES NOT ENTER INLET OF ANOTHER.WH EN TWO UNITS ARE IN END TO END WITH THE COIL ENDS FACING EACH OTHER ALLOW 12 IN, MINIMUM CLEARANCE BETWEEN UNITS. COMPRESSOR ENO SERVICE CLEARANCE: ALLOW 24 IN. MINIMUM CLEARANCE ON COMPRESSOR END WHEN UNITS ARE STACKED OR THERE IS LESS THAN 40 IN. OF CLEARANCE ABOVE THE TOP OF THE UNIT. IF THERE IS 40 IN, CLEARANCE ABOVE UNIT AND THE TOP PANEL IS ACCESSIBLE FOR REMOVAL ALLOW 8 IN. MINIMUM CLEARANCE ON COMPRESSOR END FOR SERVICE. IMPORTANT: WHEN INSTALLING SINGLE OR MULTIPLE UNITS IN AN ALCOVE, ROOF WELL, OR PARTIALLY ENCLOSED AREA, ENSURE THERE IS ADEQUATE VENTILATION TO PREVENT RECIRCULATION OF DISCHARGE AIR. 2. MINIMUM OUTDOOR OPERATING AMBIENT IN COOLING 112" MODE IS 55'F, MAX. 125"F. 3. SERIES DESIGNATION IS THE 13TH POSITION OF THE UNIT MODEL NUMBER. 4, CENTER OF GRAVITY 4 3116 5. ALL DIMENSIONS ARE IN "INCHES" UNLESS NOTED. FIELD CONTROL SUPPL WIRE ENTRY 718" HOLE W/GROMMET VAPOR LINE CONN. ALE SWEAT CONN. LIQUID LINE SWEAT CONN. DNS FIELD POWER SUPPLY CONN. HOLE SIZES PROVIDED: 0 7/8" HOLE WITH 0 1 1/8" KNOCKOUT AND 0 1 3/8" KNOCKOUT DIMENSIONS - SI o 10 O M C> X = YES O c0 O M 0 = NO N M CO N CD d N O N MINIMUM UNIT SIZE MOUNTING PAD DIMENSIONS 18,24 584.2 X 1066.3 30,36,48,60 609.6 X 1270.0 ''.. 1. CLEARANCE REQUIREMENTS: SINGLE UNIT APPLICATIONS: WITH COIL FACING WALL: ALLOW 152.4 mm MINIMUM CLEARANCE ON COIL SIDE AND COIL END AND 504 mm MINIMUM CLEARANCE ON FAN SIDE. WITH FAN FACING WALL: ALLOW 203.2 mm MINIMUM CLEARANCE ON FAN SIDE AND 152.4 mm ON COIL END AND 504.0 mm MINIMUM CLEARANCE ON COIL SIDE. MULTIUNIT APPLICATIONS: ALLOW 609.6 mm MINIMUM CLEARANCE BETWEEN FAN AND COIL SIDES OF MULTIPLE UNITS. ARRANGE UNITS SO DISCHARGE OF ONE DOES NOT ENTER INLET OF ANOTHER.WHEN TWO UNITS ARE INSTALLED END TO END WITH THE COIL ENDS FACING EACH OTHER ALLOW 304.8 mm MINIMUM CLEARANCE BETWEEN UNITS. COMPRESSOR END SERVICE CLEARANCE: ALLOW 609.6 mm MINIMUM CLEARANCE ON COMPRESSOR END WHEN UNITS ARE STACKED OR THERE IS LESS THAN 1 11 6 mm OF CLEARANCE ABOVE THE TOP OF THE UNIT. IF THERE IS 1016 mm CLEARANCE ABOVE UNIT AND THE TOP PANEL IS ACCESSIBLE FOR REMOVAL ALLOW 203.2 mm MINIMUM CLEARANCE ON COMPRESSOR END FOR SERVICE. IMPORTANT: WHEN INSTALLING SINGLE OR MULTIPLE UNITS IN AN ALCOVE, ROOF WELL, OR PARTIALLY ENCLOSED AREA, ENSURE THERE IS ADEQUATE VENTILATION TO PREVENT RECIRCULATION OF DISCHARGE AIR. 2. MINIMUM OUTDOOR OPERATING AMBIENT IN COOLING 1.6 MODE IS 12.8'C, MAX. 51.7°C. 3. SERIES DESIGNATION IS THE 14TH POSITION OF THE UNIT MODEL NUMBER. 4. CENTER OF GRAVITY ED 106.3 5. ALL DIMENSIONS ARE IN "MM" UNLESS NOTED. FIELD CONTROL SUPPL WIRE ENTRY 22.22 HOLE WIGROMME 'APOR LINE CONN. LE SWEAT CONN. LIQUID LINE SWEAT CONN. R D IONS 36.2 FIELD POWER SUPPLY CONN, HOLE SIZES PROVIDED: 0 22.23 HOLE WITH 0 28. 58 KNOCKOUT AND 0 34,93 KNOCKOUT TESTED AHRI COMBINATION RATINGS* NOTE: Ratings contained in this document are subject to change at any time. For AUM ratings certificates, please refer to the AIM directory www.ahridirectory.org Additional ratings and system combinations can be accessed via the Carrier database at: www.MyCarrierRatings.com For performance data at specific application &/or design conditions with various indoor unit combinations, the equipment performance calculator can be accessed at : http://rpmob.wrightsoft.com/ Outdoor Model Number Indoor Coil Model Number Furnace Model Number Capacity EER SEER 24AHA41BA30 CNPV*3014AL*+TDR 18,000 12.2 14 24AHA424A30 CNPV*3117AL*+TDR 24,000 12.2 14 24AHA43OA30 CNPV*3117AL*+TDR 29,600 12.2 14 24AHA436A30 CNPV*3717AL*+TDR 35,400 12.2 14 24AHA436A50 CNPV*3717AL*+TDR 35,400 12.2 14 24AHA436A60 CNPV*3717AL*+TDR 35,400 12.2 14 24AHA44BA30 CNPV*6024AL*+TDR 45,000 11.7 14 24AHA44BA50 CNPV*6024AL*+TDR 45,000 11.7 14 24AHA44BA60 CNPV*6024AL*+TDR 45,000 11.7 14 24AHA46OA30 CNPV*6124AL*+TDR 57,000 11.7 14 24AHA46OA50 CNPV*6124AL*+TDR 57,000 11.7 14 24AHA46OA60 CNPV*6124AL*+TDR 57,000 11.7 14 EER — Energy Efficiency Ratio SEER— Seasonal Energy Efficiency Ratio TXV —Thermostatic Expansion Valve NOTES: 1. Ratings are net values reflecting the effects of circulating fan motor heat. Supplemental electric heat is not included. 2. Tested outdoor/indoor combinations have been tested in accordance with DOE test procedures for central air conditioners. Ratings for other combinations are determined under DOE computer simulation procedures. 3. Determine actual CFM values obtainable for your system by referring to fan performance data in fan coil or furnace coil literature. 4. Do not apply with capillary tube coils as performance and reliability are significantly affected. 10 Installation Instructions A07532 Fig.1 — 24AHA4 NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS PAGE SAFETY CONSIDERATIONS ........................ 1 INSTALLATION ................................. 2-3 Complete Pre —Installation Checks ................... 2 Rig and Mount Unit .............................. 2 Complete Refrigerant Piping Connections ............. 3 Make Electrical Connections ........................ 3 SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory —authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing. Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations. Have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and the current editions of the National Electrical Code (NEC) NFPA70. In Canada, refer to the current editions of the Canadian Electrical Code CSA C22.1. Recognize safety information. This is the safety —alert symbol ® . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety —alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation. START—UP ........................................ 4 ELECTRICAL SHOCK HAZARD SERVICE ......................................... 4 Failure to follow this warning could result in personal injury MAINTENANCE ................................... 6 1 or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label. ENVIRONMENTAL HAZARD Failure to follow this caution may result in environmental pollution. Remove and recycle all components or materials (i.e. oil, refrigerant, etc.) before unit final disposal. INSTALLATION Clearance Requirements IMPORTANT: Effective January 1, 2015, all split system and packaged air conditioners must be installed pursuant to applicable regional efficiency standards issued by the Department of Energy. CUT HAZARD Failure to follow this caution may result in personal injury. Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing and gloves when handling parts. UNIT OPERATION AND SAFETY HAZARD Failure to follow this warning could result in personal injury or equipment damage. Puron (R-410A) refrigerant systems operate at higher pressures than standard R-22 systems. Do not use R-22 service equipment or components on Puron refrigerant equipment. PERSONAL INJURY AND EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in personal injury and / or equipment damage. DO NOT operate the unit without a filter or with grille removed. COMPLETE PRE —INSTALLATION CHECKS Unpack Unit Move the unit to final location. Remove unit from carton, being careful not to damage service valves and grilles. Inspect Shipment File a claim with the shipping company if shipment is damaged or incomplete. Check the unit nameplates to ensure units match job requirements. Consider System Requirements Consult local building codes and NEC for special installation requirements. Allow sufficient space for airflow clearance, wiring, refrigerant piping, and servicing unit. Locate unit so that condenser airflow is unrestricted on both sides. Unit may be mounted on a level pad directly on base legs or mounted on raised pads at support points. RIG AND MOUNT UNIT Mounting on Ground Mount unit on a solid, level concrete pad. Position unit so water or ice from roof does not fall directly onto unit. Use field —provided snow stand or ice rack where prolonged subfreezing temperatures or heavy snow occurs. If conditions or local codes require unit be fastened to a pad, 6 field—suppliedtie—down bolts should be used and fastened through slots provided in unit mounting feet. Mounting on Roof Mount unit on a level platform or frame at least 6 in. (152.4 mm) above roof surface. Isolate unit and tubing from structure. Single Unit Applications: With coil facing wall: Allow 6" (152.4 mm) minimum clearance on coil side and coil end and 20" (504.0 mm) minimum clearance on fan side. Allow 24" (609.6 mm) minimum clearance on compressor end for service. With fan facing wall: Allow 8" (203.2 mm) minimum clearance on fan side and coil end and 20" (504.0 mm) minimum clearance on coil side. Allow 24" (609.6 mm) minimum clearance on compressor end for service when units are stacked or there is less than 40" (1016 mm) of clearance above the unit. If there is 40" (1016 mm) clearance above unit and the top panel is accessible for removal allow 8" (203.2 mm) minimum clearance on compressor end for service. Multi —unit Applications: Allow 24" (609.6 mm) minimum clearance between fan and coil sides of multiple units. Arrange units so discharge of one does not enter inlet of another. Allow 24" (609.6 mm) minimum clearance on compressor end when units are stacked or there is less than 40" (1016 mm) of clearance above the unit. If there is 40" (1016 mm) clearance above unit and the top panel is accessible for removal allow 8" (203.2 mm) minimum clearance on compressor end for service. When two units are installed end to end with the coil ends facing each other allow 12" (304.8 mm) minimum clearance between units. IMPORTANT: When installing multiple units, ensure the discharge air from one unit is not drawn into another unit. When installing single or multiple units in an alcove, roof well, or partially enclosed area, ensure there is adequate ventilation to prevent recirculation of discharge air. Operating Ambient Minimum outdoor operating ambient in cooling mode is 55°F (13°C), maximum 125°F (52°C). Rigging PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in personal injury and/or equipment damage. Be sure unit panels are securely in place prior to rigging. Keep the unit upright and lift unit using a sling. Use cardboard or padding under the sling, and spreader bars to prevent sling damage to the unit. See Fig. 2. Install the unit so that the coil does not face into prevailing winds. If this is not possible and constant winds above 25 mph are expected, use accessory wind baffle. See installation instructions provided with the accessory kit. NOTE: Accessory wind baffles should be used on all units with accessory low ambient temperature control. Field —fabricated snow or ice stands may be used to raise unit when operation will be required during winter months. Units may also be wall mounted using the accessory wall mounting kit. VG SLING PADDING COMPRESSOR END CENTER OF GRAVITY Fig. 2 — Lifting Unit with Sling A07396 COMPLETE REFRIGERANT PIPING CONNECTIONS Outdoor units may be connected to indoor units using field —supplied tubing of refrigerant grade and condition. See Product Data for correct line sizes. Do not use less than 10 ft (3.05 m) of interconnecting tubing. UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation. If any section of pipe is buried, there must be a 6 in. (152.4 mm) vertical rise to the valve connections on the outdoor unit. If more than the recommended length is buried, refrigerant may migrate to cooler, buried section during extended periods of system shutdown. This causes refrigerant slugging and could possibly damage the compressor at start—up. When more than 80 ft (24.4 m) of interconnecting tubing and more than 20 ft (6.1 m) of vertical lift is used, consult the residential Long Line Application Guide for required accessories. If either refrigerant tubing or indoor coil is exposed to the atmosphere, the system must be evacuated following good refrigeration practices. Run refrigerant tubes as directly as possible, avoiding unnecessary turns and bends. Suspend refrigerant tubes so they do not damage insulation on vapor tube and do not transmit vibration to structure. Also, when passing refrigerant tubes through a wall, seal the opening so that vibration is not transmitted to structure. Leave some slack in refrigerant tubes between structure and outdoor unit to absorb vibration. Refer to separate indoor unit installation instructions for additional information. Filter Drier Refer to Fig. 3 and install filter drier as follows: 1. Braze 5 in. (127 mm) liquid tube to the indoor coil. 2. Wrap filter drier with damp cloth. 3. Braze filter drier to 5 in. (127 mm) long liquid tube from step 1. 4. Connect and braze liquid refrigerant tube to the filter drier. A05178 Fig. 3 — Filter Drier Components The filter drier must be replaced whenever the refrigeration system is exposed to the atmosphere. Only use factory specified liquid —line filter driers with rated working pressures less than 600 psig. NOTE: Do not install a suction —line filter drier in liquid line. Make Piping Sweat Connections EXPLOSION HAZARD Failure to follow this warning could result in death, serious personal injury, and/or property damage. Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to an explosion. Remove plastic caps from liquid and suction service valves. Use refrigerant grade tubing. Service valves are closed from the factory and are ready for brazing. After wrapping the service valve with a wet cloth, the tubing set can be brazed to the service valve using either silver bearing or non —silver bearing brazing material. Consult local code requirements. Refrigerant tubing and the indoor coil are now ready for leak testing. NOTE: Unit is shipped with Puron (R-410A) refrigerant factory charge indicated on nameplate. Pass nitrogen or other inert gas through piping while brazing to prevent formation of copper oxide. UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation. To prevent damage to unit or service valves observe the following: • Use a brazing shield. • Wrap service valves with wet cloth or use a heat sink material. MAKE ELECTRICAL CONNECTIONS ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. The unit cabinet must have an uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur. The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes. UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation. Unit failure as a result of operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would void any applicable warranty. START-UP ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Before performing service or maintenance, be sure indoor unit main power switch is turned OFF and indoor blower has stopped. Power Wirine Unit is factory wired for voltage shown on nameplate. Provide adequate, fused disconnect switch within sight from unit, readily accessible, but out of reach of children. Provision for locking the switch open (off) is advisable to prevent power from being turned on while unit is being serviced. Disconnect switch, fuses, and field wiring must comply with the NEC and local code requirements. Use copper wire only between the disconnect switch and unit. Use minimum 75 C wire for the field power connection. Route power wires through the opening in unit side panel and connect in the unit control box as shown on the unit label diagram and Fig. 4. Unit must be grounded. -GBODt:D LEAD- 0 GflOtr'".1DU:DLW SVGLE-PHASE �III}(��J,)"{IIII-�— COVN.TO __—___—____ lJ EU(— OtnCONNECT FEN NEC 6LN— ra Se�^atE-PHASE U!�rt ]. PNASE ____--___-- ELD_ C0 9l TG oSCONVIECT __ LEGEND P`fl NEC NEC — N,Nonai El Vi J Code TD TB — T tr J Board -----GNourvD LEAn- a GBowra��LUG —O— TB Connections a. PHASErt _ _ F 4d Wring Factory Wnng A07428 Fig. 4 — Line Power Connections Control Circuit Wiring Control voltage is 24 v (40 va minimum). See Fig. 5 and unit label diagram for field —supplied wiring details. Route control wire through opening in unit side panel to connection in unit control box. COOL— BLU—� — — Y 24VAC SUPPLY REQUIRED COMMON (C)—BRN—� FIELD SUPPLIED .T'STAT HIRE OUTDOOR UNIT INDOOR UNIT LOW VOLTAGE CONNECTIONS A07398 Fig. 5 — 24AHA4 Typical Control Circuit Connections NOTE: Use No. 18 AWG color —coded, insulated (35°C minimum) wire. If thermostat is located more than 100 ft. (30.5 m) from unit, as measured along the control voltage wires, use No. 16 AWG color —coded wire to avoid excessive voltage drop. NOTE: All wiring must conform to NEC and local codes. NOTE: Operating unit on improper line voltage constitutes abuse and could affect warranty. See Product Data. Do not install unit in a system where voltage may fluctuate above or below permissible limits. Refer to the Product Data for recommended fuse sizes. When making electrical connections, provide clearance at the unit for refrigerant piping connections. NOTE: The 24AHA4 units use the control transformer supplied with the matched indoor unit. PRELIMINARY CHECKS 1. Check that all internal wiring connections are tight and that all barriers, covers, and panels are in place. 2. Field electrical power source must agree with unit name- plate rating. 3. All service valves must be open. 4. Belly —band crankcase heater must be tight on compressor crankcase for those units with belly —band heaters. EVACUATE AND DEHYDRATE Field piping and fan coil must be evacuated and dehydrated. CHARGE SYSTEM Release charge into system by opening (back —seating) liquid and suction line service valves. Outdoor unit is charged for 15 ft (4.6 m) of 3/8—in. liquid line. TO START UNIT Be sure that the field disconnect is closed. Set room thermostat below ambient temperature. Operate unit for 15 minutes, then check system refrigerant charge. See Refrigerant Charging section. SERVICE ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label. High —Pressure Relief Valve The high—pressure relief valve is located in the compressor. The relief valve opens at a pressure differential of approximately 550 to 625 ± 50 psig between suction (low side) and discharge (high side) to allow pressure equalization. Internal Current and Temperature Sensitive Overload The control resets automatically when internal compressor motor temperature drops to a safe level (overloads may require up to 45 minutes to reset). When an internal overload is suspected of being open, check by using an ohmmeter or continuity tester. Pumpdown Procedure The system may be pumped down in order to make repairs on the low side without losing complete refrigerant charge. UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation. Never open system to atmosphere while it is under a vacuum. When system must be opened for service, recover refrigerant, break vacuum with dry nitrogen before opening system. 1. Attach pressure gage to suction service valve gage port. 2. Front —seat the liquid/mixed phase line valve. Refrigerant Charging UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation. The unit coils hold only the factorydesignated amount of refrigerant. Additional refrigerant may cause units to relieve pressure through the compressor internal pressure relief valve (indicated by a sudden rise of suction pressure) before suction pressure reaches 20 psig. If this occurs, shut off unit immediately then front —seat the suction valve and remove and recover excess refrigerant following accepted practices PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD Failure to follow this warning could result in personal injury and/or equipment damage. Wear safety glasses and gloves when handling refrigerant. Do not overcharge system — this can cause compressor flooding. 3. Start unit and run until suction pressure reaches 20 psig. 4. Shut unit off and front —seat suction valve. PERSONAL INJURY AND/OR EQUIPMENT 5. De —pressurize low side of unit and recover refrigerant fol- DAMAGE HAZARD lowing accepted practices. Failure to follow this warning could result in personal injury Crankcase Heater and/or equipment damage. The crankcase heater prevents refrigerant migration and Service valves must be fully back —seated to close service compressor oil dilution during shutdown when compressor is not port. There is no Schrader valve at the service port, and operating. If the crankcase heater is de —energized for more than 6 failure to back—seat the valve could result in loss of system hours, both compressor service valves must be closed. charge or personal injury. NOTE: Addition of an accessory crankcase heater is required for long line and low ambient tolling applications. Refer to the NOTE: Do not vent or de —pressurize unit refrigerant to Residential Long Line Guideline. atmosphere. Remove and recover refrigerant following accepted practices. The crankcase heater is powered by the high —voltage power of the unit. It is connected across the line side of the contactor and is All units are shipped with the refrigerant charge listed on the thermostatically controlled. nameplate. Refer to Product Data and consider the following when working with Puron (R-410A) refrigerant: PERSONAL INJURY HAZARD Failure to follow this warning could result in personal injury or death. Use extreme caution when troubleshooting this device as line voltage is continually present. To troubleshoot: 1. Apply voltmeter across crankcase heater leads to see if heat- er voltage is on. Do not touch heater. Carefully feel area around crankcase heater; if warm, crankcase heater is func- tioning. 2. With power off and heater leads disconnected, check across leads with ohmmeter. Do not look for a specific resistance reading. Check for resistance or an open circuit, and change heater if an open circuit is detected. Service Valves The service valves in the outdoor unit come from the factory front —seated. This means the refrigerant charge is isolated from the line —set connection ports. To prevent damage to the valve, use a wet cloth or other accepted heat sink material on the valve before brazing. The service valve cannot be field repaired, therefore, only a complete valve or valve stem seal and service port caps are available for replacement. • Puron refrigerant cylinders are rose colored. • Recovery cylinder service pressure rating must be 400 psig, DOT (Department of Transportation) 4BA400 or DOT BW400. • Puron systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose when charging into suction line with compressor op- erating. • Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low —side retard. • Use hoses with 700 psig service pressure rating. • Puron refrigerant, as with other HFCs, is only compatible with POE oils. • Vacuum pumps will not remove moisture from oil. • Polyol Ester oils absorb moisture rapidly. Do not expose oil to atmosphere. • Polyol Ester oils may cause damage to certain plastics and roofing materials. • Wrap all filter driers and service valves with wet cloth when brazing. • factory approved, liquid —line filter drier is required on ev- ery unit. • Do not use a TXV (thermostatic expansion valve) designed for use with R-22 refrigerant. Refer to separate indoor unit installation instructions for more details. • If using a suction line drier, do not leave in place for more than 72 hours. 35 ft. (10.6 m) — 25 ft. (7.6 m) = 10 ft. X 0.6 oz./ft. = 6 oz. of additional charge. CHECK CHARGE MAINTENANCE Charging method is shown on information plate inside unit. To properly check or adjust charge, conditions must be favorable for subcooling charging. Favorable conditions exist when the outdoor temperature is between 70°F and 100°F (21.11°C and 37.78°C), and the indoor temperature is between 70°F and 80°F (21.11°C and 26.67°C). Follow the procedure below: Unit is factory charged for 15ft (4.57 m) of lineset. Adjust charge by adding or removing 0.6 oz/ft (.018 kg/m) of 3/8 liquid line above or below 15ft (4.57 m) respectively. For standard refrigerant line lengths (80 ft/24.38 m or less), allow system to operate in cooling mode at least 15 minutes. If conditions are favorable, check system charge by subcooling method. If any adjustment is necessary, adjust charge slowly and allow system to operate for 15 minutes to stabilize before declaring a properly charged system. If the indoor temperature is above 80°F (26.67°C), and the outdoor temperature is in the favorable range, adjust system charge by weight based on line length and allow the indoor temperature to drop to 80°F (26.67°C) before attempting to check system charge by subcooling method as described above. If the indoor temperature is below 70°F (21.11 °C), or the outdoor temperature is not in the favorable range, adjust charge for line set length above or below 15ft (4.57 m) only. Charge level should then be appropriate for the system to achieve rated capacity. The charge level could then be checked at another time when the both indoor and outdoor temperatures are in a more favorable range. NOTE: If line length is beyond 80 ft (24.38 m) or greater than 20 ft (6.10 m) vertical separation, See Residential Piping and Long Line Guideline for special charging requirements. ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label. LUBRICATION Compressor Compressor contains factory oil charge; replace oil when lost. Use Mobile 3MA—POE oil. CLEANING COILS Coil should be washed out with water or blown out with compressor air. Note that the blow—thru design causes dirt and debris to build up on the inside of the coils. Clean coil annually or as required by location and outdoor air conditions. Inspect coil monthly and clean as required. Fins are not continuous through coil sections. Dirt and debris may pass through first section, become trapped between the row of fins and restrict condenser airflow. Use a flashlight to determine if dirt or debris has collected between coil sections. Clean coil as follows: 1. Turn off unit power. 2. Using a garden hose or other suitable equipment, flush coil from the outside to remove dirt. Be sure to flush all dirt and debris from drain holes in base of unit. Fan motors are wa- terproof. Copyright 2015 Carrier Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 Edition Date:02115 Catalog No: 24AHA4-02SI Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: 24AHA4—01SI