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Installation Manual High Efficiency Air Handlers R454B H24AHH17XAE H36AHH18XAE H48AHH18XAE H60AHH16XAE Appearance of unit may vary. NOTE: Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel only. All phases of this installation must comply with National, State and Local Codes.
1. INSTRUCTION FOR SERVICING(R454B) 1. Check the information in this manual to find out the dimensions of space needed for proper installation of the device, including the minimum distances allowed compared to adjacent structures. 2. Appliance shall be installed, operated and stored in a room with a floor area larger than 4m . 3.
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1. INSTRUCTION FOR SERVICING(R454B) 16. Information on servicing: 1) Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.
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1. INSTRUCTION FOR SERVICING(R454B) 18. Repair to intrinsically safe components Intrinsically safe components must be replaced. 19. Cabling Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
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1. INSTRUCTION FOR SERVICING(R454B) 23. Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely . Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant.
2. INSTALLATION PRECAUTIONS(R454B) Important Considerations 1. The air conditioner must be installed by professional personnel and the Installation manual is used only for the professional installation personnel! The installation specifications should be subject to our after-sale service regulations. 2. When filling the combustible refrigerant, any of your rude operations may cause serious injury or injuries to human body and objects.
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2. INSTALLATION PRECAUTIONS(R454B) The area of the connected rooms, on the same floor,connected by permanent opening in the walls and/or doors between occupied spaces, including gaps between the wall and the floor.can be considered a single room when determining compliance to Amin, provided all of the following conditions are met as Fig.2-1.
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2. INSTALLATION PRECAUTIONS(R454B) The minimum opening area for connected rooms Table 2-1 Mc(□lbs□oz) Mmax(□lbs□oz) A(ft2) Anvmin(ft2) Note: Take the Mc=9 lbs 9 oz as an example. For appliances serving one or more rooms with an air duct system, The room area calculation shall be determined based on the total area of the conditioned space(TA) connected by ducts taking into consideration that the circulating airflow distributed to all the rooms by the appliance integral indoor fan will mix and dilute the leaking refrigerant before entering any room.
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2. INSTALLATION PRECAUTIONS(R454B) NOTE: The maximum refrigerant limit described above applies to unventilated areas. If adding additional measures, such as areas with mechanica ventilation or natural ventilation, The maximum refrigerant charge can be increased or the minimum room area can be reduced.
3. SAFETY PRECAUTIONS SAFETY RULES AND RECOMMENDATIONS FOR THE INSTALLER ead this guide before installing and using the appliance. uring the installation of the indoor and outdoor units, access to the working area should be forbidden to children. Unforeseeable accidents could happen. ake sure that the base of the outdoor unit is firmly fixed.
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3. SAFETY PRECAUTIONS ever remain directly exposed to the flow of cold air for a long time. The direct and prolonged exposition to cold air could be dangerous for your health. Particular care should be taken in the rooms where there are children, old or sick people. f the appliance gives off...
4. DIMENSIONS Field installed electrical conduit is required at the low voltage wireentry point. Animals like frogs, snakes, spiders and others may climb into the control box resulting in the PCB damage. Manufacturer reserves the rights to reject warranty claim on PCB if no comply.
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4. DIMENSIONS Unit Dimensions Dimensions (in.) Model Liquid Line Gas Line Connection Connection H24AHH17XAE 46-1/2 19-1/4 H36AHH18XAE H48AHH18XAE 24-1/2 22-3/4 H60AHH16XAE Select a solid and level site, keep enough space for proper installation and maintenance. Adjust motor speed tap on indoor main control board (MCB) to select correct air flow according to blower performance table.
5. APPLICATIONS 5.1 Vertical up-flow and Horizontal right-flow(left-flow) IMPORTANT 3.00 1.75 3.00 1.70 1.40 3.96 2.70 2.36...
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5. APPLICATIONS The units can be installed in a vertical (down and up) and Horizontal (right and left) configuration. Vertical up installations Horizontal installations NOTICE:For horizontal installation, a secondary drain pan (not supplied) is suggested to install under the unit. Please follow these steps to perform Vertical up installation and Horizontal right installation: 1.
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5. APPLICATIONS Indication of the position of each temperature sensor of the evaporator: 24-36K model 48-60K model CN17 CN17 Note: For the horizontal installation,how to disassemble and reinstall the evaporator assembly 2. Remove the upper cover assembly. 1. Remove the fixed plate of the filter, then take the filter off.
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5. APPLICATIONS 5. Remove CN17、CN18 wire ties. 6. Take out the evaporator and drain pan and rotate 180°. 7. Reinstall the evaporator.
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5. APPLICATIONS 8. Reinstall CN17、CN18 plug and tie up the sensor wires. NOTICE:The wire body needs to pass through the wire groove from the water receiving tray and be stuck on the hook of the water receiving tray. 9. Reinstall the drain pan fixed plate and auxiliary support plate. Use cable ties to bind and fix the environmental...
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5. APPLICATIONS 10. Reinstall evaporator cover plate. 11. Reinstall the upper cover assembly. 12. Reinstall the filter and filter plate. 13. Connect the wire according to the wiring diagram.
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5. APPLICATIONS 5.2 Refrigerant Piping Connection lnstructions CAUTION Do not install the connecting pipe until both indoor and outdoor units have been installed. Insulate both the gas and liquid piping to prevent water leakage. Be extra careful not to damage, dent, or deform the pipe while cutting. This will drastically reduce the heating ...
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5. APPLICATIONS Refer to below figures marked with digital number for line brazing procedures. Every figure is corresponding to the following illustrations. 1. Remove caps or plugs. Use a tool to deburr the line ends. Clean both internal and external surfaces of the tubing using an emery cloth.
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5. APPLICATIONS 5.3 Installation of drainpipe ① ②...
5. APPLICATIONS 5.4 Installation in an unconditioned space There are two pairs of coil rails in the air handler for default and counter flow application. If the air handler is installed in an unconditioned space, the two unused coil rails should be removed to minimize air handler surface sweating. The coil rails can be easily removed by taking off the 6 mounting screws from both sides of the cabinet.
6. ELECTRICAL WIRING 6.1 Power Wiring It is important that proper electrical power is available for connection to the unit model being installed. Refer to the unit nameplate, wiring diagram and electrical data in the installation instructions. If required, install a branch circuit disconnect of adequate size, located within sight of, and readily accessible to the unit.
6. ELECTRICAL WIRING 6.2 Control Wiring 18 AWG 2 Stage, 2 Step, Heating Pump 2 Stage, 2 Step, Cooling Only Thermostat Air Handler Outdoor Unit Thermostat Air Handler Outdoor Unit 24V AC HOT 24V AC HOT 24V AC Common 24V AC Common BLUE BLUE...
Grounding may also be accomplished by attaching ground wire(s) to ground lug(s) provided in the unit wiring compartment. Use of multiple supply circuits require grounding of each circuit to lug(s) provided in the unit. 6.4 Electrical Data overcurrent protective(A) H24AHH17XAE H36AHH18XAE H48AHH18XAE H60AHH16XAE...
Super grade SCFM 1173 1130 1065 1021 Top grade SCFM 1139 1095 1028 Mid and SCFM 1105 1059 high grade H24AHH17XAE Mid-range SCFM 1072 1024 Mid and SCFM 1038 low grade Low grade SCFM 1004 Mute tone SCFM Super grade SCFM...
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7. AIRFLOW PERFORMANCE NOTES: Airflow based upon cooling performance at 230V with no electric heat and no filter. Airflow at 208V is approximately the same as 230V because the multi-tap ECM motor is a constant torque motor. The torque doesn’t drop off at the speeds in which the motor operates. The air distribution system has the greatest effect on airflow.
8. DUCTWORK Field ductwork must comply with the National Fire Protection Association NFPA 90A, NFPA 90B and any applicable local ordinance. WARNING Do not, under any circumstances, connect return ductwork to any other heat producing device such as fireplace insert, stove, etc. Unauthorized use of such devices may result in fire, carbon monoxide poisoning, explosion, personal injury or property damage.
3. Clean the air filter or use a new one to replace. FILTER RAILS FILTER COVER NOTE: AIR FILTER IS NOT FACTORY INSTALLED Filter installation and clean Filter Dimensions Dimensions (in.) Model Filter size H24AHH17XAE 18 x 20 19-3/4 13-7/8 H36AHH18XAE H48AHH18XAE 22 x 20 23-1/4 15-1/4 H60AHH16XAE NOTE: ...
10. REFRIGERANT SENSOR Important Notes: 1. The refrigerant sensor must be maintained by a professional and only the specified sensor by the manufacturer can be replaced. 2. The design life of the refrigerant sensor is 15 years, please replace the sensor within the range of the service life. 3.
11. INTERNAL FUNCTION DIP SWITCH DESCRIPTION 11.1 Communication function DIP switch According to the actual installation requirements, you can choose 24V ON/OFF mode or RS485 communication mode to control the unit. Dip bit Dip code Function description Factory default, 24V ON/OFF control, using 24V thermostat control unit operation SW2-1 RS485 communication control, the need to purchase...
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11 INTERNAL FUNCTION DIP SWITCH DESCRIPTION 11.3 Anti-cold air DIP switch In 24V ON/OFF control mode, you can use SW1-4 DIP switch to adjust whether the anti-cold air function takes effect. 1. The default DIP switch position of SW1-4 is on the digital end. The cold air protection function takes effect. When the heat pump is started, the unit will first run in accordance with the lower wind gear for a period of time to prevent the cold air from blowing into the room at the initial stage of heating operation and affecting the comfort, and then adjust the speed according to the temperature control wind gear.
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11. INTERNAL FUNCTION DIP SWITCH DESCRIPTION 11.5 Cold Air Provention In 24V ON/OFF control mode, you can use SW2-3 DIP switches to adjust whether the exhaust air temperature control function takes effect. 1. The default DIP switch position of SW2-3 is on the digital end, and the exhaust air temperature control function takes effect.
12. FAULT INDICATION Blinking definition: The Led light on 200ms and then off 200ms, defined as a Led light flashing. LED light color LED light status Failure Green light Turn off Standby mode Green light stay lit In operation Anti-cold air running Green light beat 1 (blink once, off for 1s)
13. TROUBLESHOOTING CAUTION If one of the following conditions occurs, switch off the power supply immediately and contact your dealer for further assistance: The operation light continues to flash rapidly after the unit has been restarted. The unit continually trips fuses or circuit breakers. ...
13. TROUBLESHOOTING 13.2 Troubleshooting Advice When troubles occur, please check the following points before contacting a repair company. Problem Possible Cause Solution Power failure Wait for the power to be restored The power switch is off Turn on the power The unit is not The fuse is burned out Replace the fuse...
14. DISPOSAL GUIDELINE 1.Minimum installation height,minium room area(operating or storage) refer to installation manual. 1.La taille minimale d’installation, la surface minimale de pièce (opération ou stockage) se réfèrent au manuel d’installation. 2.Risk Of Fire-Auxiliary devices which may be ignition sources shall not be installed in the ductwork,other than auxiliary devices listed for use with the specific appliance.
15. SUPPLEMENTARY STATEMENT WARNING -Do not use means to accelerate the defrosting process or to clean, other than those recommended by the ’ manufacturer; -The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater. -Do not pierce or burn.
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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.
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