1. Manuals
  2. Brands
  3. ACIQ Manuals
  4. Air Handlers
  5. ACiQ-12-AHD
  6. Installation manual

ACIQ -12-AHD Installation Manual

Ducted air handler 12k-60k units
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
DUCTED AIR HANDLER 12K-60K UNITS
INSTALLATION MANUAL
Models Covered:
ACiQ-12-AHD
ACiQ-18-AHD
ACiQ-24-AHD
ACiQ-30-AHD
ACiQ-36-AHD
ACiQ-42-AHD
ACiQ-48-AHD
ACiQ-60-AHD
WARNING: DO NOT destroy or lose this manual. Please read the manual thoroughly. Also, store the manual in a place that
allows for easy retrieval and future reference. As a result of continuous product improvement, the specification and design
of this product are subject to change without advanced notice. Consult your manufacturer or your dealer for further
details regarding this product. The images and illustrations within this this manual are for reference only. The actual shape
and size of your product may vary.
VERSION DATE: 1-25-25

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ACiQ-12-AHD and is the answer not in the manual?

Questions and answers

Related Manuals for ACIQ ACiQ-12-AHD

Summary of Contents for ACIQ ACiQ-12-AHD

  • Page 1 DUCTED AIR HANDLER 12K-60K UNITS INSTALLATION MANUAL Models Covered: ACiQ-12-AHD ACiQ-18-AHD ACiQ-24-AHD ACiQ-30-AHD ACiQ-36-AHD ACiQ-42-AHD ACiQ-48-AHD ACiQ-60-AHD WARNING: DO NOT destroy or lose this manual. Please read the manual thoroughly. Also, store the manual in a place that allows for easy retrieval and future reference. As a result of continuous product improvement, the specification and design of this product are subject to change without advanced notice.

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ACCESSORIES INDOOR UNIT INSTALLATION REFRIGERANT PIPING CONNECTION INSTALLATION OF ELECTRIC AUXILIARY HEAT MODULE (ONLY FOR HEAT FUNCTION MODELS) CONFIRMATION OF INDOOR UNIT OUTDOOR UNIT INSTALLATION WIRING PRECAUTIONS SPECIFICATION AIR EVACUATION NOTE ON ADDING REFRIGERANT TEST RUN Read this manual Inside you’ll find many helpful hints on how to use and maintain your air conditioner properly.

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS It is really important you read Safety Precautions Before Operation and Installation Incorrect installation due to ignoring instructions can cause serious damage or injury. The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION. Explanation of Symbols WARNING This symbol indicates the possibility of personal injury or loss of...
  • Page 4 WARNINGS FOR PRODUCT INSTALLATION Turn o the air conditioner and disconnect the power before performing any ● installation or repairs. Failure to do so can cause electric shock. Installation must be performed by an authorized dealer or specialist according to ●...
  • Page 5 WARNING FOR USING FLAMMABLE REFRIGERANT 1. Installation (Space) - That the installation of pipe-work shall be kept to a minimum. - That pipe-work shall be protected from physical damage. - Where refrigerant pipes shall be compliance with national gas regulations. - That mechanical connections shall be accessible for maintenance purposes.
  • Page 6 NOTE ABOUT FUSE SPECIFICATIONS The air conditioner’s circuit board (PCB) may be designed with a fuse to provide • overcurrent protection. This fuse must be replaces with identical component. The specifications of the fuse, if equipped, are printed on the circuit board, •...
  • Page 7 NOTE The nouns in this section are explained as follows : Mc: The actual refrigerant charge in the system. A: the actual room area where the appliance is installed. Amin: The required minimum room area. Mmax: The allowable maximum refrigerant charge in a room. Qmin: The minimum circulation airllow.
  • Page 8 Note: Take the Mc =5.0kg 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 9: Indoor Unit

    Products Model Indoor unit Outdoor unit series 12K(208/230V) ACIQ-12-EHPD ACIQ-12-AHD ACIQ-18-EHPD 18K(208/230V) ACIQ-18-AHD ACIQ-18-HPD ACIQ-24-EHPD 24K(208/230V) ACIQ-24-AHD ACIQ-24-HPD ACIQ-30-EHPD 30K(208/230V) ACIQ-30-AHD ACIQ-30-HPD 2GenAHU ACIQ-36-EHPD 36K(208/230V) ACIQ-36-AHD ACIQ-36-HPD 42K(208/230V) ACIQ-42-AHD ACIQ-42-HPD ACIQ-48-EHPD 48K(208/230V) ACIQ-48-AHD ACIQ-48-HPD ACIQ-60-EHPD 60K(208/230V) ACIQ-60-AHD ACIQ-60-HPD c or...
  • Page 10 1. Installation(where refrigerant pipes are allowed) - Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification. - Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.
  • Page 11 a. The minimum test pressure for the low side of the system shall be the low side design pressure and the minimum test pressure for the high side of the system shall be the high side design pressure, unless the high side of the system can not be isolated from the low side of the system in which case the entire system shall be pressure tested to the low side design pressure.
  • Page 12 9. No ignition sources No person carrying out work in relation to a REFRIGERATING SYSTEM which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept su ciently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space.
  • Page 13 14. Detection of flammable refrigerants Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch(or any other detector using a naked flame) shall not be used. The following leak detection methods are deemed acceptable for refrigerant systems.
  • Page 14 17. Charging procedures In addition to conventional charging procedures, the following requirements shall be followed: Works shall be undertaken with appropriate tools only (In case of uncertainty, please consult the manufacturer of the tools for use with flammable refrigerants) Ensure that contamination of di erent refrigerants does not occur when using charging equipment.
  • Page 15 20. Recovery When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available.
  • Page 16 22. Transportation, marking and storage for units that employ flammable refrigerants a. General The following information is provided for units that employ FLAMMABLE REFRIGERANTS. b. Transport of equipment containing flammable refrigerants Attention is drawn to the fact that additional transportation regulations may exist with respect to equipment containing flammable gas.

  • Page 17: Accessories

    ACCESSORIES The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or equipment failure. Accessories (Packed with the indoor unit) Manual Cable ties Insulation sleeve...

  • Page 18: Indoor Unit Installation

    INDOOR UNIT INSTALLATION CAUTION Install the indoor and outdoor units, cables and wires at least 3-1/5ft (1m) from televisions or radios to prevent static or image distortion. Depending on the appliances, a 3-1/5ft (1m) distance may not be su cient. The Indoor unit must be electrically grounded per national and local electrical code.
  • Page 19 WARNING There must be an airtight seal between the bottom of the air handler and the return air plenum. Use fiberglass sealing strips, foil duct tape, caulking, or equivalent sealing method between the plenum and the air handler cabinet to ensure a tight seal. Return air must not be drawn from a room where this air handler or any gas-fueled appliance (i.e., water heater), or carbon monoxide-producing device (i.e., wood fireplace) is installed.
  • Page 20 Indoor unit parts installation size (unit: inch/mm) Model(Btu/h) 12K/18K/24K 30K/36K 42K/48K/60K Dimensions inch Length of A 1143 1245 1346 inch Length of B inch 17-1/2 21-1/50 24-1/2 Length of C inch 15-3/4 19-5/16 22-27/32 Length of D inch 10-1/4 10-1/4 10-1/4 Length of E Recommended size of filter...

  • Page 21: Installation Position Requirements

    Installation Position Requirements Vertical installations Horizontal installations NOTICE FOR DUCT CONNECTIONS： It should be assembled It should be insulated It should be Flexible It should be fabricated accordance to the and use a Vapor Barrier. suspension mounted and installed in and not fastened instructions.
  • Page 22 CAUTION A field-fabricated secondary drain pan, with a drain pipe to the outside of the building, is required in all installations over a finished living space or in any area that may be damaged by overflow from the main drain pan. In some localities, local codes may require a secondary drain pan for any horizontal installation.
  • Page 23 Connecting the wire and pipes(pipes and drainage pipes) Vertical down Horizontal right Please follow these steps to perform installation and installation: Step 1 Open the upper cover. Step 2 Open the cover of the electronic control box. Step 3 Connect the wire according to the wiring diagram. Step 4 Connect the pipes and install the drainage pipes.
  • Page 24 Step 4 Step 5 Indication of the position of each Unplug temperature sensors T1, T2, T2A, T2B, temperature sensor of the evaporator: refrigerant detection sensor and electronic expansion valve (EEV) from the control board. T1: IDU room temp. sensor(T1) T2: IDU coil temp. sensor(T2) T2A: Evaporator coil temperature sensor(T2A) 12-24K model T2B: Evaporator coil inlet temperature sensor(T2B)
  • Page 25 Step 6 Step 9 Take out the evaporator and drain pan and rotate 180° Reinstall T1, T2, T2A, T2B sensor plugs and electronic expansion valve (EEV) and tie up (when your equipment need to be vertical the sensor wires. downed configuration). Cut the foam gasket.
  • Page 26 Step 10 The evaporator is assembled in place. Step 11 Step 13 Use cable ties to fix the room temperature sensor as shown in the figure. Connect the wire according to the wiring diagram. Step 14 cable ties Reassenble the upper cover and Reinstall the filter, filter cover plate.

  • Page 27: Vertical Discharge

    NOTICE ON PURCHASING PIPES Installation requires pvc pipe or other suitable material per local and national codes, which can be obtained at your local hardware store or dealer. WARNING • After removal of drain pan plug(s), check drain hole(s) to verify that drain opening is fully open and free of any debris.

  • Page 28: Refrigerant Piping Connection

    REFRIGERANT PIPING CONNECTION WARNING All field piping must be completed by a licensed technician and must comply with the local and national regulations. • When 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.

  • Page 29: Connection Instructions-Refrigerant Piping

    Connection Instructions—Refrigerant Piping CAUTION • Insulate both the gas and liquid piping to prevent condensation. Outdoor Unit Air Handler Air Handler Unit Adapter Required at Air Outdoor Adapter Required at Outdoor Connection Unit Model Connection(in.flare) Handler Unit (in.flare to braze) Model Unit (in.flare to flare or braze) (in.flare)

  • Page 30: Step 4: Connect Pipes

    Outdoor unit Liquid side piping (Smaller diameter) • Clamp flare from on the end of the pipe. The end of the pipe must extend beyond the flare form. (Bigger Flare form Pipe • Place flaring tool onto the form. Torque wrench •...
  • Page 31 CAUTION • Thread this pipeline through the wall and connect it to the outdoor unit. Check to make sure there is no refrigerant • Insulate all the piping, including the valves of leak after completing the installation work. the outdoor unit. If there is a refrigerant leak, ventilate the area Open the stop valves of the outdoor unit to •...

  • Page 32: (Only For Heat Function Models)

    INSTALLATION OF ELECTRIC AUXILIARY HEAT MODULE (ONLY FOR HEAT FUNCTION MODELS) NOTICE Installation must be performed by an licensed contractor. Please make necessary precaution when performing the installation operation. Accessories Preparations for Installation Before installation, please confirm the electric Name Quantity Name Quantity...
  • Page 33 Step 3 Step 5 Remove the terminal block and power wires, Tighten the mounting screws. loosen the screws, and remove the electric auxiliary heating cover.Remove the power cable terminal CN11 on the mainboard. screws. Step 6 Wire according to the wiring nameplate. Step 4 Apply the wiring diagram to the inside cover wiring is completed for future reference and...

  • Page 34: Confirmation Of Indoor Unit

    CONFIRMATION OF INDOOR UNIT NOTICE Electric auxiliary heating wiring diagram packed with the accessories. If branch circuit wire lenght exceeds 100 ft, consult NEC 210-19a to determine maximum wire length. Use 2% voltage drop. After the electric heating wiring is connected, please confirm before power on: •...

  • Page 36: Outdoor Unit Installation

    OUTDOOR UNIT INSTALLATION NOTICE Install the unit by following local switchs and regulations , there may be di er slightly between di erent regions. Select the installation location of outdoor units Before installing the outdoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit.
  • Page 37 DO NOT install unit in the following locations: Near an obstacle that will Near animals or plants that will Near a public street, block air inlets and outlets. be harmed by hot air discharge. crowded areas, or where noise from the In a location that is exposed Near any source of unit will disturb others.

  • Page 38: Anchor Outdoor Unit

    IN COLD CLIMATES In cold climates, make sure that the drain hose is as vertical as possible to ensure swift water drainage.If water drains too slowly, it can freeze in the hose and flood the unit. Anchor outdoor unit The outdoor unit can be anchored to the ground or to a wall-mounted bracket with bolt(M10). Prepare the installation base of the unit according to the dimensions below.
  • Page 39 Outdoor Unit Dimensions Mounting Dimensions inch inch inch inch inch 31-11/16 21-13/16 20-1/8 12-1/2 26-1/2 13-15/32 26-1/8 13-15/16 37-1/4 31-29/32 16-5/32 26-1/2 15-7/8 38-19/32 38-3/8 16-11/32 24-1/4 15-5/8 37-1/2 52-1/2 1333 16-11/32 24-35/36 15-29/32 (unit: inch/mm) Rows of series installation The relations between H, A and L are as follows.

  • Page 40: Wiring Precautions

    WIRING PRECAUTIONS WARNING BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE WARNINGS. All wiring must comply with local and national Do not let wires touch or rest against ● ● electrical codes, regulations and must be installed refrigerant tubing, the compressor, or any by a licensed electrician.

  • Page 41: In North America

    OUTDOOR UNIT WIRING WARNING Before performing any electrical or wiring work, turn o the main power to the system. Step 1: Prepare the cable for connection. 208/230V~60Hz Power Supply 1. You must first choose the right cable size. 2. Using wire strippers, strip the rubber jacketfrom both ends of the signal cable to reveal approximately 5.9in(150mm) of wire.
  • Page 42 INDOOR UNIT WIRING CAUTION • While connecting the wires, please strictly follow the wiring diagram. • The refrigerant circuit can become very hot. Keep the interconnection cable away from the copper tube. Step 1: Prepare the cable for connection. WARNING Using wire strippers, strip the insulating jacket ISOLATE THE POWER SUPPLY LEADS AND from both ends of the signal cable to reveal...
  • Page 43 INSTALLATION GUIDE FOR AHU USING 115V POWER SUPPLY Step 1: Remove the two screws Open the upper cover Step 5: Remove the blue connector from the control board CN12. Step 2: When using 115V power supply, the fan motor wiring requires the use of 115V fan motor pair plug.
  • Page 44 Step 7: Replace the electronic control box with the entire machine, fix it with screws, and insert the wire body properly. Plug temperature sensors T1, T2, T2A, T2B, refrigerant detection sensor and electronic expansion valve(EEV), and fan motor power pair plug(CN11) from the control board. CN12 CN11 Remove...
  • Page 45 Y/Y2 COM OY2 OY1 OB/O S4-2 Default on, DH function off. S4-4 Default on, W1 and W2 Turn switch off to activate DH shorted for single stage Aux heat function. operation. Turn off to separate stages. COM OY2 OY1 Y/Y2 OB/O S4-2 Default on, DH function off.

  • Page 46: Condensate Overflow Switch

    Condensate overflow switch: The unit will accommodate a remote condensate overflow switch. To enable, remove jumper J7, and connect the installer provided condensate overflow device to CN23 per below. When an overflow condition is present, the device should open connection signaling the unit to turn o the system.

  • Page 47: Led Display

    UV,fresh air or ion generator wiring LED display The control displays unit status as well as any active fault codes on the LED display. If the unit is functioning normally, the LED will display current temperature setpoint. When a fault code is active, the display will flash quickly the active fault code.

  • Page 48: Dip Switch Definitions

    DIP switch definitions Function Rotary switch Function DIP swich Static pressure DIP swich KEY1 Function DIP swich display To CCM COMMUNICATION COMM. Bus TO OUTDOOR UNIT...
  • Page 49 Function DIP switch settings: Function combination table of SW1-1 and SW1-4: The 24V thermostat mode needs to refer Control type IDU and ODU Connection Note to the following settings: Wired controller / (S1+S2) / 24V Auto connection Discovery thermostat Wired S1+S2 Scenario 2 controller...
  • Page 50 [Default] Dehumidification Dehumidification feature is enabled S4-2 DH function selection control not available through thermostat L output 24V or alarm relay close only SW5-3 1,2,3 L or Alarm relay selection [default] L output 24V or alarm relay when refrigerant sensor fault or R454B close when any fault be detected refrigerant leakage be detected R stop ouput 24V when refrigerant...
  • Page 51 Air volume table 24V thermostat Wired controller Air flow External Static Electric auxiliary volume Capacity Fan speed Pressure Range heat module DIP Switch 24V terminal engaged DIP Switch Mode (CFM) Cooling Turbo — SW3-4=ON Y2/Y — Cool Cooling High SW3-4=OFF Y2/Y —...
  • Page 52 Air volume table 24V thermostat Wired controller Airflow External Static Electric auxiliary volume Capacity Fan Speed Pressure Range heat module DIP Switch 24V terminal engaged DIP Switch Mode (CFM) SW3-4=ON Y2/Y Cool Cooling Turbo — — 1188 — SW3-4=OFF Y2/Y —...

  • Page 53: Specification

    SPECIFICATIONS Cooling and Heating power specifications(Regular Heat Series) 12K/18K PHASE POWER (outdoor) FREQUENCY AND VOLT OUTDOOR UNIT 2+Ground LINE QUANTITY OUTDOOR UNIT POWER LINE LINE DIAMETER(AWG) LINE QUANTITY OUTDOOR-INDOOR SIGNAL LINE LINE DIAMETER(AWG) LINE QUANTITY THERMOSTAT SIGNAL LINE LINE DIAMETER(AWG) PHASE POWER (outdoor)
  • Page 54 Cooling and Heating power specifications(Hyper Heat Series) PHASE POWER (outdoor) FREQUENCY AND VOLT 29.5A OUTDOOR UNIT 2+Ground LINE QUANTITY OUTDOOR UNIT POWER LINE LINE DIAMETER(AWG) LINE QUANTITY OUTDOOR-INDOOR SIGNAL LINE LINE DIAMETER(AWG) LINE QUANTITY THERMOSTAT SIGNAL LINE LINE DIAMETER(AWG) 42K/48K PHASE POWER (outdoor)

  • Page 55: Air Evacuation

    AIR EVACUATION NOTICE When opening valve stems, turn the hexagonal wrench until it hits against the stopper. Do not try to force the valve to open further. Close the Low Pressure side of the manifold Preparations and precautions gauge, and turn o the vacuum pump. Wait for 5 minutes, then check that there Air and foreign matter in the refrigerant circuit has been no change in system pressure.

  • Page 56: Note On Adding Refrigerant

    NOTE ON ADDING REFRIGERANT CAUTION DO NOT mix refrigerant types. Some systems require additional charging depending on pipe lengths. In North America, the standard pipe length is 25ft (7.5m). The refrigerant should be charged from the service port on the outdoor unit’s low pressure valve.

  • Page 57: Test Run

    TEST RUN CAUTION Failure to perform the test run may result in unit damage, property damage, or personal injury. 5. For the Outdoor Unit Before test run a. Check to see if the refrigeration system is leaking. A test run must be performed after the entire b.
  • Page 58 24V SIGNAL CHART 24V input terminal Mode Priority Y/Y2 E/AUX Fan speed Display Cooling stage 1 Cooling stage 2 High Dehumidification 1 Dehumidification 2 Heat pump stage 1 Heat pump stage 2 High Heat pump stage 2 High Electric auxiliary Turbo heat module Electric auxiliary...
  • Page 60 The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. Any updates to the manual will be uploaded to the service website, please check for the latest version. QS002I-AHU(24V)R454B 16122700A24750...

This manual is also suitable for:

Aciq-18-ahdAciq-24-ahdAciq-30-ahdAciq-36-ahdAciq-42-ahdAciq-48-ahd ... Show all

Table of Contents