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ACiQ Concealed Duct Air Handler Owner’s Manual & Installation Manual ACiQ-09CD-HH-MB, ACiQ-12CD-HH-MB, ACiQ-18CD-HH-MB, ACiQ-24CD-HH-MB IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.
Table of Contents Safety Precautions ................04 Owner’s Manual Unit Specifications and Features ............07 1. Indoor unit ....................................07 2. Operating temperature..............................08 3. Other features ..................................09 Care and Maintenance ..............10 Troubleshooting ................12...
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Installation Manual Accessories ..................15 Installation Summary .................16 Unit Parts .....................17 Indoor Unit Installation ..............18 1. Select installation location..............................18 2. Hang indoor unit..................................19 3. Duct and accessories installation ............................21 4. Adjust the air inlet direction..............................21 5. Fresh air duct installation..............................22 6. Motor and drain pump maintenance..........................22 7.
Safety Precautions 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. CAUTION WARNING This symbol indicates the possibility of This symbol indicates the possibility property damage or serious consequences.
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CLEANING AND MAINTENANCE WARNINGS Turn o the device and disconnect the power before cleaning. Failure to do so can cause • electrical shock. Do not clean the air conditioner with excessive amounts of water. • Do not clean the air conditioner with combustible cleaning agents. Combustible cleaning agents •...
WARNINGS FOR PRODUCT INSTALLATION 1. Installation must be performed by an authorized dealer or specialist. Defective installation can cause water leakage, electrical shock, or re. 2. Installation must be performed according to the installation instructions. Improper installation can cause water leakage, electrical shock, or re. (In North America,installation must be performed in accordance with the requirement of NEC and CEC by authorized personnel only.) 3.
Unit Specifications and Features Indoor unit NOTE: Di erent models have di erent display panel. Not all the indicators describing below are available for the air conditioner you purchased. Please check the indoor display panel of the unit you purchased. Illustrations in this manual are for explanatory purposes.
Display panel Timer Infrared indicator receiver Manual LED display button Operation Alarm indicator indicator PRE-DEF (pre-heating/defrost) indicator MANUAL button : This button selects the mode in the following order: AUTO, FORCED COOL, OFF. • FORCED COOL mode : In FORCED COOL mode, the Operation light flashes. The system will then turn to AUTO after it has cooled with a high wind speed for 30 minutes.
Care and Maintenance Cleaning Your Indoor Unit CAUTION BEFORE CLEANING OR Any maintenance and cleaning of outdoor • MAINTENANCE unit should be performed by an authorized dealer or a licensed service provider. ALWAYS TURN OFF YOUR AIR CONDITIONER SYSTEM AND DISCONNECT ITS POWER SUPPLY Any unit repairs should be performed •...
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Maintenance – Pre-Season Inspection After long periods of non-use, or before periods of frequent use, do the following: Check for damaged wires Check for leaks Make sure nothing is blocking all air inlets and outlets Page 12 ...
Troubleshooting SAFETY PRECAUTIONS If any of the following conditions occurs, turn o your unit immediately! The power cord is damaged or abnormally warm • You smell a burning odor • The unit emits loud or abnormal sounds • A power fuse blows or the circuit breaker frequently trips •...
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Issue Possible Causes The outdoor unit The unit will make di erent sounds based on its current operating mode. makes noises Dust is emitted from The unit may accumulate dust during extended periods of non-use, which will be either the indoor or emitted when the unit is turned on.
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Problem Possible Causes Solution Wait for the power to be restored Power failure The power is turned o Turn on the power The unit is not The fuse is burned out Replace the fuse working Replace batteries Remote control batteries are dead The Unit’...
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 re, or cause the equipment to fail. The items are not included with the air conditioner must be purchased separately.
Installation Summary Install the indoor unit Install the drainpipe Install the outdoor unit L(L1) N(L2) Evacuate the Connect the wires Connect the refrigeration system refrigerant pipes Perform a test run Page 17 ...
Unit Parts NOTE: The installation must be performed in accordance with the requirement of local and national standards. The installation may be slightly di erent in di erent areas. Air outlet Air inlet Electric control cabinet Drain pipe Connecting pipe Air inlet Air outlet Outdoor unit A...
Indoor Unit Installation Installation Instructions – Indoor unit NOTE: Panel installation should be performedafter piping and wiring have been completed. Step 1: Select installation location DO NOT install unit in the following locations: Before installing the indoor unit, you must choose an appropriate location.
Step 2: Hang indoor unit. 1. Please refer to the following diagrams to locate the four positioning screw bolt holes on the ceiling. Be sure to mark the paces where you will drill ceiling hook holes. Air outlet dimensions Air inlet dimensions Air lter Descending ventilation opening and mounted hook Air lter...
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Wood 2. Install and t pipes and wires after you have nished installing the main body.When The mounting holes for upper foam are used for choosing where to start, determine the auxiliary positioning bolts (if the foam is damaged direction of the pipes to be drawn out. or damaged, the spacing between the actual lifting Especially in cases where there is a ceiling lugs shall be the standard).
Step 3: Duct and accessories installation Step 4: Adjust the air inlet direction (From rear side to under-side) 1. Install the lter (optional) according to the size of the air inlet. 1. Take o the ventilation panel and ange. 2. Install the canvas tie-in between the body and Air return ange duct.
Step 5: Fresh air duct installation Pump maintainance: Remove four screws from the drain pump. Dimension : Duct joint for fresh air Unplug the pump power supply and water level switch cable. Detach the pump. MODLE 9-12 Ø92mm(3.62”) Ø113mm(4.45”) Pump Step 7: Drill wall hole for connective piping 1.
Step 8: Connect drain hose NOTE ON DRAINPIPE INSTALLATION When using an extended drainpipe, • The drainpipe is used to drain water away from tightenthe indoor connection with an the unit. Improper installation may cause unit additionalprotection tube. This prevents and property damage.
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3. Pass the drain hose through the wall hole. Units with a pump. Make sure the water drains to a safe location 1. Remove the test cover. where it will not cause water damage or a Fill the water pan with 2 liters of water. slipping hazard.
Outdoor Unit Installation Install the unit by following local codes and install unit in the following locations: DO NOT regulations , there may be di er slightly Near an obstacle that will block air inlets between di erent regions. and outlets Near a public street, crowded areas, or where noise from the unit will disturb others Near animals or plants that will be harmed...
Step 3: Anchor outdoor unit Step 2: Install drain joint(Heat pump unit only) The outdoor unit can be anchored to the Before bolting the outdoor unit in place, you must install the drain joint at the bottom of the unit. ground or to a wall-mounted bracket with Note that there are two di erent types of drain bolt(M10).
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(unit: mm/inch) Outdoor Unit Dimensions Mounting Dimensions W x H x D Distance A Distance B 760x590x285 (29.9x23.2x11.2) 530 (20.85) 290 (11.4) 810x558x310 (31.9x22x12.2) 549 (21.6) 325 (12.8) 845x700x320 (33.27x27.5x12.6) 560 (22) 335 (13.2) 900x860x315 (35.4x33.85x12.4) 590 (23.2) 333 (13.1) 945x810x395 (37.2x31.9x15.55) 640 (25.2) 405 (15.95)
Refrigerant Piping Connection When connecting refrigerant piping, do not let substances or gases other than the speci ed refrigerant enter the unit. The presence of other gases or substances will lower the unit’ s capacity, and can cause abnormally high pressure in the refrigeration cycle. This can cause explosion and injury.
Step 2: Remove burrs. Connection Instructions – Burrs can a ect the air-tight seal of refrigerant Refrigerant Piping piping connection. They must be completely removed. CAUTION 1. Hold the pipe at a downward angle to prevent burrs from falling into the pipe. The branching pipe must be installed •...
5. Clamp are form on the end of the pipe. Step 4: Connect pipes The end of the pipe must extend beyond Connect the copper pipes to the indoor unit rst, the are form. then connect it to the outdoor unit. You should rst connect the low-pressure pipe, then the high- pressure pipe.
7. Thread this pipeline through the wall and NOTE ON MINIMUM BEND RADIUS connect it to the outdoor unit. Carefully bend the tubing in the middle 8. Insulate all the piping, including the valves of according to the diagram below. DO NOT bend the outdoor unit.
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12.To avoid getting an electric shock, never Air switch touch the electrical components soon (purchased seperately) Indoor unit power wires after the power supply has been turned o . After turning o the power, always wait 10 minutes or more before you touch the electrical components.
2. Remove the 2 screws xed on the front panel Outdoor Unit Wiring and side panel, then take it down to perform wire connection(see the gure of outdoor WARNING unit A). Unscrew the electrical wiring cover and Before performing any electrical or wiring remove it.(see the gure of outdoor unit B) work, turn o the main power to the system.
Australia models Indoor Unit Wiring Please prepare spanner and at-blade 1. Prepare the cable for connection. before your installation work . screwdriver a. Using wire strippers, strip the rubber jacket from both ends of the signal cable to reveal 1. Remove two xing screws, then remove the front panel.
Power Specifications (Not applicable for North America) NOTE: Electric auxiliary heating type circuit breaker/fuse need to add more than 10 A. NOTE: Electric auxiliary heating type circuit breaker/fuse need to add more than 10 A. NOTE: The circuit breaker/fuse speci cation shall be subject to the unit nameplate. The circuit breaker/fuse speci cation shall be subject to the unit Nameplate.
Air Evacuation Preparations and Precautions Close the Low Pressure side of the manifold gauge, and turn o the vacuum pump. Air and foreign matter in the refrigerant circuit can Wait for 5 minutes, then check that there cause abnormal rises in pressure, which can damage has been no change in system pressure.
Note on Adding Refrigerant Some systems require additional charging depending on pipe lengths. The standard pipe length varies according to local regulations. For example, in North America, the standard pipe length is 7.5m (25’). In other areas, the standard pipe length is 5m (16‘). The refrigerant should be charged from the service port on the outdoor unit’...
Test Run f. Check to see that the drainage system is Before Test Run unimpeded and draining smoothly. A test run must be performed after the entire g. Ensure there is no vibration or abnormal system has been completely installed. Confirm noise during operation.
Packing and unpacking the unit Instructions for packing unpacking the unit: Unpacking: Indoor unit: 1.Cut the packing belt. 2. Unpack the package. 3. Take out the packing cushion and packing support. 4. Remove the packing lm. 5. Take out the accessories. 6.
Impedance Information (Applicable to some countries of Middle East Area only) To be in compliance with EN61000-3-11, the product MTI-48HWN1-R shall be connected only to a supply of the system impedance: Zsys = 0.267802236 or less. Before connecting the product to public power network, please consult your local power supply authority to ensure the power network meet above requirement.
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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.
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