ACiQ-24-ACL Split Horizontal Vertical Duct Air Conditioner Indoor Unit Owner’s Manual

ACiQ-24-ACL Split Horizontal Vertical Duct Air Conditioner Indoor Unit Owner’s Manual

**IMPORTANT NOTE:**
Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

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.
WARNING
This symbol indicates the possibility of personnel injury or loss of life.
CAUTION
This symbol indicates the possibility of property damage or serious consequences.
**WARNING
This appliance can be used by children aged from 8 years and above and persons with reduced  physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
WARNINGS FOR PRODUCT USE**

• If an abnormal situation arises (like a burning smell), immediately turn o the unit and disconnect the power. Call your dealer for instructions to avoid electric shock, re or injury.
• Do not insert fingers, rods or other objects into the air inlet or outlet. This may cause injury, since the fan may be rotating at high speeds.
• Do not use flammable sprays such as hair spray, lacquer or paint near the unit. This may cause fire or combustion.
• Do not operate the air conditioner in places near or around combustible gases. Emitted gas may collect around the unit and cause explosion. Do not operate your air conditioner in a wet room such as a bathroom or laundry room. Too much exposure to water can cause electrical components to short circuit.
• Do not expose your body directly to cool air for a prolonged period of time.
• Do not allow children to play with the air conditioner. Children must be supervised around the unit at all times.
• If the air conditioner is used together with burners or other heating devices, thoroughly ventilate the room to avoid oxygen deficiency.
• In certain functional environments, such as kitchens, server rooms, etc., the use of specially designed air-conditioning units is highly recommended.
• Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional HVAC installer or equivalent, service agency, or the gas supplier.

CLEANING AND MAINTENANCE WARNINGS

Turn off 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 can cause re or deformation.

CAUTION

• Turn off the air conditioner and disconnect the power if you are not going to use it for a long time.
• Turn off and unplug the unit during storms.
• Make sure that water condensation can drain unhindered from the unit.
• Do not operate the air conditioner with wet hands. This may cause electric shock.
• Do not use device for any other purpose than its intended use.
• Do not climb onto or place objects on top of the outdoor unit.
• Do not allow the air conditioner to operate for long periods of time with doors or windows open, or if the humidity is very high.
• As with any mechanical equipment, contact with sharp sheet metal edges can result in personal injury. Take care while handling this equipment and wear gloves and protective clothing.

ELECTRICAL WARNINGS

• Only use the specified power cord. If the power cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualied persons in order to avoid a hazard.

• Keep power plug clean. Remove any dust or grime that accumulates on or around the plug. Dirty plugs can cause re or electric shock.

• Do not pull power cord to unplug unit. Hold the plug firmly and pull it from the outlet. Pulling
  directly on the cord can damage it, which can lead to fire or electric shock.

• Do not modify the length of the power supply cord or use an extension cord to power the unit.

• Do not share the electrical outlet with other appliances. Improper or insucient power supply can cause re or electrical shock.

• The product must be property grounded at the time of installation, or electrical shock may occur.

• For all electrical work, follow all local and national wiring standards, regulations, and the Installation Manual. Connect cables tightly, and clamp them securely to prevent external forces from damaging the terminal. Improper electrical connections can overheat and cause fire, and may also cause shock. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units.

• All wiring must be properly arranged to ensure that the control board cover can close properly. If the control board cover is not closed properly, it can lead to corrosion and cause the connection points on the terminal to heat up, catch fire, or cause electrical shock.

• If connecting power to fixed wiring, an all-pole disconnection device which has at least 3mm clearances in all poles, and have a leakage current that may exceed 10mA, the residual current device(RCD) having a rated residual operating current not exceeding 30mA, and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

TAKE NOTE OF FUSE SPECIFICATIONS

The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent protection.
The specifications of the fuse are printed on the circuit board ,examples of such are T5A/250VAC and T10A/250VAC.

**** WARNINGS FOR PRODUCT INSTALLATION

1. Installation must be performed by an authorized dealer or specialist. Defective installation can cause water leakage, electrical shock, or fire.
2. Installation must be performed according to the installation instructions. Improper installation can cause water leakage, electrical shock, or fire. (In North America, installation must be performed in accordance with the requirement of NEC and CEC by authorized personnel only.)
3. Contact an authorized service technician for repair or maintenance of this unit. This appliance shall be installed in accordance with national wiring regulations.
4. Only use the included accessories, parts, and specified parts for installation. Using non-standard parts can cause water leakage, electrical shock, fire, and can cause the unit to fail.
5. Install the unit in a firm location that can support the unit’s weight. If the chosen location cannot support the unit’s weight, or the installation is not done properly, the unit may drop and cause serious injury and damage.
6. Install drainage piping according to the instructions in this manual. Improper drainage may cause water damage to your home and property.
7. For units that have an auxiliary electric heater, do not install the unit within 1 meter (3 feet) of any combustible materials.
8. Do not install the unit in a location that may be exposed to combustible gas leaks. If combustible gas accumulates around the unit, it may cause fire.
9. Do not turn on the power until all work has been completed.
10. When moving or relocating the air conditioner, consult experienced service technicians for disconnection and reinstallation of the unit.
11. Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available.
12. Excessive Weight Hazard – Use two or more people when moving and installing the unit. Failure to do so can result in back or other type of injury.
13. Take precautions to ensure Aluminum tubes do not come in direct contact or allow for condensate run off with a dissimilar metal. Dissimilar metals can cause galvanic corrosion and possible premature failure.
14. 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.

INTRODUCTION

Use this instruction manual to install indoor coil on multipoise furnaces.
The coil is enclosed in a casing.

Horizontal Right Furnace Installation

Typical Coil Installation on Furnace

INSTALLATION

INSTALLATION OF EVAPORATOR COILS

Upflow coil installation
The cased coil is designed to t furnaces of the same width.

1. Set coil in place on upow furnace discharge air opening.

2. Ensure coil is level for proper condensate drainage. Do not tip coil toward condensate drain. Coil casing need not be fastened or screwed to furnace.

3. When installing wider coil on narrow furnace, create eld fabricated adapter.
   Horizontal Right & Left Installation **
   Vertical Upow & Down folw Installation
   NOTE: On upow installations where the indoor coil is placed in an unconditioned space, a 6” wide piece of insulation should be applied and wrapped around the outside of coil casing and supply duct contact point.
   NOTE: Consult the furnace installation instructions for any special requirements when installing the coil to the furnace.
   Downflow Coil Installation
   IMPORTANT:** Installing “A” coils rotated 90 degrees from the front of the furnace in downow applications can cause water blow off or coil freeze up. This is due to the concentration of air on one coil slab or lack of air on the opposite coil slab. If the airow is high due to ductwork or other causes, and there is a chance for water blow off, it is recommended that a 4-in. minimum eld-supplied adapter be placed between the coil and the furnace to allow the air to distribute evenly to both coil slabs.

   ---

   Downow Installation with Coil Rotated 90°

4. Set cased coil on supply duct opening.

5. Place eld fabricated 4-in. minimum adapter on coil casing. Adapter should be tapered to t coil/furnace combination when one of them is larger than the other.

6. Set furnace on adapter.
   NOTE: In downow installation with a 4-way multipoise furnace, break off perforated duct anges on furnace. See furnace installation instructions.

Horizontal Coil Installation
The unit can be installed on a work platform, secured to roof truss in attic, suspended from hangers on oor joists in crawl space, or installed on blocks. It is designed to allow airow in either direction, to mate with horizontal- left or horizontal-right furnace installations. Ensure coil cabinet is level side to side and front to back.
It is allowable to add up to 1/2-in. additional slope over length and depth of coil cabinet in the direction of drain pan connection.

Horizontal Right Installation

1. Use eld fabricated attachment plates to secure coil to furnace.
2. Use self-tapping screws to mount attachment plates to coil casing.
3. Connect furnace snugly against coil casing.
4. Use self-tapping screws to attach furnace.
5. Seal joint between coil casing and furnace to create an air tight seal using locally approved materials.
6. Use cork tape to create air seal between the undersides of the pan extension and front of the vertical drain pan as shown below.
7. Install included condensate pan extension and two corner screws as shown below.
8. If coil is wider than furnace, use 4-in minimum transition and self tapping screws to attach furnace.

Horizontal Left Installation

1. Unbend the 4 tabs at the right side of the casing.
2. Connect furnace snugly against coil casing.
3. Use self-tapping screws to attach furnace.
4. Seal joint between coil casing and furnace to create air tight seal using locally approved materials.
5. If coil is wider than furnace, use 4-in. Minimum transition and self tapping screws to attach furnace.

REFRIGERANT LINE CONNECTIONS

**WARNING**

• Failure to follow this warning could result in personal injury. Wear eye protection.
• Coil is factory charged with 15 psi nitrogen.
  The coil is under pressure and TXV screen is in place behind liquid line plug. DO NOT remove liquid line plug rst, always remove the suction line plug rst to depressurize the coil.

NOTE: Factory nitrogen charge may escape past rubber plugs during storage. This does not indicate a leaking coil nor warrant return of the coil.
Size and install refrigerant lines according to information provided with outdoor unit. Coil connection tube sizes are shown in Table .
Route refrigerant lines to the coil in a manner that will not obstruct service access to the unit or removal of the lter.
Do not use damaged, dirty, or contaminated tubing because it may plug refrigerant ow-control device. ALWAYS evacuate the coil and eld-supplied tubing before opening outdoor unit service valves.

Please cover it with a wet towel when you are going to weld the pipe. ****

CONNECT REFRIGERANT, LIQUID, and SUCTION LINES

For matched systems, use line sizes recommended in outdoor unit Installation Instructions.
CAUTION
Failure to follow this caution may result in property damage.
Take precautions to ensure Aluminum tubes do not come in direct contact or allow for condensate run off with a dissimilar metal. Dissimilar metals can cause galvanic corrosion and possible premature failure.

The coil can be connected to outdoor units using eld-supplied tubing of refrigerant grade.
Always evacuate tubing and reclaim refrigerant when making connections or aring tubing.
Leak check connections before insulating entire suction line.
See Table for coil connection tube size.

1. Remove cabinet access door.

2. Remove rubber plugs, suction plug then liquid plug, from coil stubs using a pulling and twisting motion. Hold coil stubs steady to avoid bending or distorting.

3. Remove tubing plate with rubber grommets and slide plate with grommets onto the refrigerant lines (eld line-set), away from braze joints.

4. Fit refrigerant lines into coil stubs. Wrap a heat sinking material such as a wet cloth behind braze joints.

5. Wrap TXV and nearby tubing with a heat-sinking material such as a wet cloth.

6. Use 1/2 psig Nitrogen purge in the suction and out the the liquid line.

7. Braze using a Sil-Fos or Phos-copper alloy. Do not use soft solder.

8. After brazing, allow joints to cool. Carefully remove TXV bulb insulation and verify that the TXV bulb is securely fastened with hose clamp. Tighten screw a half-turn past hand tight with TXV bulb placed in the indentation with full contact with the vapor line tube.
   Re-wrap TXV bulb with insulation.

9. Leak check connections before insulating entire suction line.

10. Slide tubing plate with rubber grommets over joints. Position tubing at center of each grommet to ensure an air seal around the tube. Reinstall cabinet door.

CAUTION
Failure to follow this caution may result in property damage.
When installing over a nished ceiling and/ or living area, install a eld- fabricated secondary condensate pan under the entire unit.

The coil is designed to dispose of accumulated water through built-in condensate drain ttings.
It is recommended that PVC ttings be used on the condensate pan. Do not over- tighten. Finger tighten plus 1-1/2 turns. Be sure to install plastic plug in unused condensate drain tting. Two 3/4 inch female threaded pipe connections are provided in each coil condensate pan.
A trap is not necessary on the condensate line if on the supply air side of furnace. Consult local codes for additional restrictions or precautions.
If local codes require a trap then the following guidelines are suggested to assure proper drainage. Install a trap in condensate line of coil as close to the coil as possible. Make trap at least 3 inches (76 mm) deep and no higher than the bottom of unit condensate drain opening . Pitch condensate line 1 inch (25.4 mm) for every 10 ft. of length to an open drain or sump. Make sure that the outlet of each trap is below its connection to condensate pan to prevent condensate from overowing the drain pan. Prime all traps, test for leaks, and insulate traps and lines if located above a living area.
**WARNING**

• Failure to follow this warning could result in personal injury or death.
  Provide trap with air gap in drain line when connecting to waste (sewer) line。

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NOTE: If unit is located in or above a living space, where damage may result from condensate overow, a eld-supplied, external condensate pan should be installed underneath the entire unit, and a secondary condensate line (with appropriate trap) should be run from the unit into the pan. Any condensate in this external condensate pan should be drained to a noticeable place. As an alternative to using an external condensate pan, some localities may allow the running of a separate 3/4 inch (19 mm) condensate line (with appropriate trap) per local code to a place where the condensate will be noticeable. The owner of the structure must be informed that when condensate ows from secondary drain or external condensate pan, the unit requires servicing or water damage will occur. To further protect against water damaqe. install a oat switch to shut the unit off if the water in the secondary pan gets too high.

WASTE LINE CONNECTION

If the condensate line is to be connected to a waste (sewer) line, an open trap must be in stalled ahead of the waste line to prevent escape of sewer gases.

CARE AND MAINTENANCE

To continue high performance and minimize possible equipment failure, it is essential that periodic maintenance be performed on this equipment. Consult your local dealer as to the proper frequency of maintenance, but it should be done at least annually.
The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools. If you do not possess these, contact your dealer for maintenance. The only consumer service recommended or required is lter replacement or cleaning on a monthly basis.
CAUTION
Failure to follow this caution may result in environmental damage.
Remove and recycle all components or materials (i.e., oil, refrigerant,etc.) before unit nal disposal.

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