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ACIQ -24TD-AH Installation Manual

Top-discharge ducted air handler
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TOP-DISCHARGE DUCTED AIR HANDLER
INSTALLATION MANUAL
Models Covered:
ACiQ-24TD-AH
ACiQ-36TD-AH
ACiQ-48TD-AH
ACiQ-60TD-AH
All phases of this installation must comply with National, State and Local Codes.
This document is customer's property and is to remain with this unit. Please return it to customer with service
information upon completion of work.
These instructions are intended as an assist to qualified and licensed personnel for proper installation, adjustment and
operation of ECM air handler units. Read it thoroughly before attempting installation or service work.
Failure to follow these instructions may result in fire, electrical shock, property damage, personal injury or
death.
The instructions do not cover all varitions in systems or provide for every possible contingency to be met in connection
with the installation.
Appearance of unit may vary.
NOTE:
Installation must be performed in
accordance with the requirements of
NEC and CEC by authorized
personnel only.
VERSION DATE: 1-25-25

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Summary of Contents for ACIQ ACiQ-24TD-AH

  • Page 1 TOP-DISCHARGE DUCTED AIR HANDLER INSTALLATION MANUAL Models Covered: ACiQ-24TD-AH ACiQ-36TD-AH ACiQ-48TD-AH ACiQ-60TD-AH 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.

  • Page 2: Table Of Contents

    CONTENTS .................1 1. INSTRUCTION FOR SERVICING(R454B) .................5 2. INSTALLATION PRECAUTIONS(R454B) 3. SAFETY PRECAUTIONS .......................11 ..........................13 4. DIMENSIONS ......................15 5. APPLICATIONS .....................25 6. ELECTRICAL WIRING ......................29 7. AIRFLOW PERFORMANCE ..........................31 8. DUCTWORK .............................32 9. AIR FILTER ......................33 10. REFRIGERANT SENSOR ............34 11.

  • Page 3: Instruction For Servicing(R454B)

    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.
  • Page 4 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.
  • Page 5 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.
  • Page 6 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.

  • Page 7: Installation Precautions(R454B)

    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.
  • Page 8 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.
  • Page 9 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.
  • Page 10 2. INSTALLATION PRECAUTIONS(R454B) The required minimum room area Table 2-3 Mc(□lbs□oz) Mc(□lbs□oz) Amin/Tamin(ft2) Amin/Tamin(ft2) 66.1 165.3 72.7 171.9 79.3 178.5 86.0 185.1 92.6 191.7 99.2 198.4 105.8 205.0 112.4 211.6 119.0 218.2 125.6 224.8 132.2 231.4 138.8 238.0 145.5 244.6 152.1 251.2 158.7...
  • Page 11 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.
  • Page 12 2. INSTALLATION PRECAUTIONS(R454B) Suggested Tools Tool Picture Tool Picture Tool Picture Standard Wrench Pipe Cutter Vacuum Pump Adjustable/ Screw drivers Safety Glasses Crescent Wrench (Phillips & Flat blade) Anti-static Manifold and Torque Wrench Gloves Gauges Hex Keys or Level Refrigerant Scale Allen Wrenches Flaring tool Micron Gauge...

  • Page 13: Safety Precautions

    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.
  • Page 14 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...

  • Page 15: Dimensions

    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.
  • Page 16 4. DIMENSIONS Unit Dimensions Dimensions (in.) Model Liquid Line Gas Line Connection Connection ACIQ-24TD-AH 46-1/2 19-1/4 ACIQ-36TD-AH ACIQ-48TD-AH 24-1/2 22-3/4 ACIQ-60TD-AH 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.

  • Page 17: Applications

    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...
  • Page 18 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.
  • Page 19 5. APPLICATIONS Indication of the position of each temperature sensor of the evaporator: illustrate: Refrigerant Sensor Temperature Sensor Refrigerant Sensor 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.
  • Page 20 5. APPLICATIONS 5. Remove CN17、CN18 cable ties. 6. Take out the evaporator and drain pan and rotate 180°. 7. Reinstall the evaporator.
  • Page 21 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...
  • Page 22 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.
  • Page 23 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 ...
  • Page 24 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.
  • Page 25 5. APPLICATIONS 5.3 Installation of drainpipe ① ②...
  • Page 26 5. APPLICATIONS ② ①...

  • Page 27: Installation In An Unconditioned Space

    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.

  • Page 28: Power Wiring

    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.

  • Page 29: Control Wiring

    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...

  • Page 30: Electrical Data

    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) ACIQ-24TD-AH ACIQ-36TD-AH ACIQ-48TD-AH ACIQ-60TD-AH...

  • Page 31: Airflow Performance

    Super grade SCFM 1173 1130 1065 1021 Top grade SCFM 1139 1095 1028 Mid and SCFM 1105 1059 high grade ACIQ-24TD-AH Mid-range SCFM 1072 1024 Mid and SCFM 1038 low grade Low grade SCFM 1004 Mute tone SCFM Super grade SCFM...
  • Page 32 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.

  • Page 33: Ductwork

    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.

  • Page 34: Air Filter

    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 ACIQ-24TD-AH 18 x 20 19-3/4 13-7/8 ACIQ-36TD-AH ACIQ-48TD-AH 22 x 20 23-1/4 15-1/4 ACIQ-60TD-AH NOTE: ...

  • Page 35: Refrigerant Sensor

    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.

  • Page 36: Internal Function Dip Switch Description

    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...
  • Page 37 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.
  • Page 38 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.

  • Page 39: Fault Indication

    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)

  • Page 40: Troubleshooting

    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. ...

  • Page 41: Troubleshooting Advice

    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...

  • Page 42: Electrical

    Power Supply Motor Minmum Circuit Air Handler Model Motor HP Fuse (A) Phase-Hz Wiring Gauge Steps AMPS ACIQ-24TD-AH ACIQ-36TD-AH 208/230/240 14AWG 1Ph-60Hz ACIQ-48TD-AH ACIQ-60TD-AH NOTE：The parameters in the table do not include electric heating. 14.2 Electric Heat Data Table 14-2 MAX.
  • Page 43 Tap (7) 1173 1130 1086 1065 1021 Tap (6) 1139 1095 1050 1028 Tap (5) 1105 1059 1013 ACIQ-24TD-AH Tap (4) 1072 1024 Tap (3) 1038 Tap (2) 1004 Tap (1) 970 Tap (7) 1539 1510 1481 1467 1438 1395...

  • Page 44: Installation Instructions

    14.4 INSTALLATION INSTRUCTIONS "EAH**TD" Electric Heater Kits For use in Air Handlers ATTENTION INSTALLING PERSONNEL Prior to installation, thoroughly familiarize yourself with this installation manual. Observe all safety warnings. During installation or repair, caution is to be observed. It is your responsibility to install the product safely and to educate the customer on its safe use. STEP 1.
  • Page 45 STEP 2. Remove the cover plate from the air handler. STEP 3. Slide the heater kit into the slot and secure element plate with previously removed screws .
  • Page 46 When sliding the heater kit into the slot ensure that it is installed in the correct orientation described below. Thermostat will be on the left hand side and the fuse will be on the right hand side. When two elements are being used ensure that "UPPER" and "LOWER" elements are installed in the correct slots and orientations.
  • Page 47 STEP 4. Align the attachment clip and the hole and fasten the loose wires by using wire tie. STEP 5. Install the circuit breaker into the mounting rail, break out appropriate area of the plastic circuit breaker cover on the access panel of the air handler.
  • Page 48 STEP 6. The labels for the circuit diagram of the electric heater are to be pasted in this area. WARNING : FIRE, ELECTRICAL SHOCK, HAZARD After connecting all wires, check all screws of breaker and make sure all screws are properly tight. Failure to do so will result in breaker malfunction, fire, death, personal injury and properly damage.
  • Page 49 Figure 7-1 Wiring diagram for 5KW electric heat...
  • Page 50 Figure 7-2 Wiring diagram for 10KW electric heat...
  • Page 51 Figure 7-3 Wiring diagram for 15KW electric heat...
  • Page 52 Figure 7-4Wiring diagram for electric heat...

  • Page 53: Disposal Guideline

    1 . 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.

  • Page 54: Supplementary Statement

    1 . 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.
  • Page 56 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.

This manual is also suitable for:

Aciq-36td-ahAciq-48td-ahAciq-60td-ah

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