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DELUXE HIGH WALL MINI SPLIT SERVICE MANUAL MODEL : HMC009KD HMH012KD / HMC012KD HMH018KD / HMC018KD HMH024KD / HMC024KD CAUTION -BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL. -ONLY FOR AUTHORIZED SERVICE PERSONNEL. International Comfort Products...
Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting Temp. Starting Current Control • Indoor fan is delayed for 5 seconds at the starting. Time Delay Safety Control •...
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Remote Controller Operation ON/OFF Operation Mode Selection Auto Operation Mode. ( Cooling Operation Mode. ( Heating Operation Mode. ( Soft Dry Operation Mode. (Heating (Cooling model only) model only) Fan Speed Selection (Low) (Med) (High) (AUTO WIND) Room Temperature Display : (High: 98°F LOW : 54°F) Temperature Setting...
Operation Details (1) The function of main control 1. Time delay Safety Control • 3min.; The compressor operation is delayed for 3 minutes to balance the pressure of cycle. (Protection of compressor) • 5sec.; The indoor fan is delayed for 5 seconds, when operating initially, to prevent noises occurred by the vertical louver and wind.
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4. Auto Operation (Electronic control mode) • The operation procedure is shown below. (Cooling & Heating Model) Press Start/Stop Button Select Auto Operation Mode Check the Room temperature Operation mode Indoor fan speed are decided automatically by the unit electronic control. Setting temperature Intake-air Over...
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Auto Operation for Soft Dry(only Heating Model) • The Setting temperature will be same that of the auto operation for cooling. - Compressor ON temperature; Setting temperature +2°F - Compressor OFF temperature; Setting temperture -1°F Intake-air temp. below 68°F Over 68°F~below 70°F over 86°F Setting temp.
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5. Soft Dry Operation Mode • During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 2°F, the compres- sor OFF temperature is the setting temperature minus 1°F. • When the room temperature rises over the compressor ON temperature, the operation mode is switched to the Cooling operation.
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6. Heating Operation Mode(only Heating Model) The unit will operate according to the setting conditions by the remote controller. The operation diagram is shown below. INTAKE AIR TEMP. SETTING TEMP. + 6°F (Compressor OFF) SETTING TEMP. (Compressor ON) minimum minimum minimum 1 min.
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Defrost Control • Defrost operation is controlled by timer and sensing temperature of outdoor pipe. • The first defrost starts only when the outdoor pipe temperature falls below 21°F after 60 minutes passed from starting of heating operation and more than 10 minutes operation of compressor. •...
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7. Cooling or Heating Mode with Sleep Mode Auto Control • When selecting the Cooling( ) or the Heating( ) combined with the Sleep Mode Auto Control( ), the operation diagram is as following. Cooling Mode with the Sleep Mode •...
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8. Forced Operation • If you lose wireless remote controller, you can operate the unit with forced operation button. • The standard conditions are shown below. Heating Model Cooling Room Temp ≥ 76°F 70°F ≤ Room Temp < 76°F Model Room temp <...
Test Mode Test operation will be set by pushing the "Test key" on the main PWB Assy. Each test operation by pushing count of "Test key" is as well as the following. (1) Indoor • Once push : Ignore communication error. •...
Installation IMPORTANT! Please read this instruction sheet completely before installing the product. This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. WARNING •...
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(1) Installation Parts Provided 1. Type "A" screw 3. Type "B" screw 4. Holder Remote-Controller 2. Installation Plate (2) Installation of Indoor, Outdoor unit 1) Selection of the best location 1. Indoor unit. There should not be any heat source or steam near •...
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2) Indoor Unit Installation The mounting wall should be strong and solid enough to protect it from the vibration. 1.Mount the installation plate on the wall with four Installation Plate Type "A" screws. (if mounting the unit on the concrete wall, consider using anchor bolts.) •...
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(3) Piping and Drainage of Indoor Unit 1) PREPARATION OF PIPINGS Pipe cutter 1. Cut the pipes and the cable. • Use the pipes purchased locally. • Measure the distance between the indoor and the Rough Slanted outdoor unit. • Cut the pipes a little longer than measured distance. •...
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2) Connection of Pipings 1. Remove the indoor tubing with Drain hose from the hole • Remove tubing holder and pull the tubing out of the chassis. 2. Replace the tubing holder into original position. • Recommended SPEC. of a additional Drain Hose. Joint Part The material of Drain hose Inner size...
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6. Indoor unit installation • Hook the indoor unit onto the upper portion of installation plate. (Engage the two hooks of the rear Connecting top of the indoor unit with the upper edge of the cable installation plate.) Ensure the hooks are properly seated on the installation plate by moving it left and right.
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For the left pipings 3. Route the indoor tubing with the drain hose to the piping hole as desired position. Tubing holder To remove the holder, press the bottom of chassis near the holder upward and pull the tab Press out of its hole.
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5. Insert the connecting cable into the indoor unit. • Don't connect the cable to the indoor unit. • Make a small loop with the cable for easy connection later. Indoor/outdoor connecting cable 6. Tape the tubing, drain hose and the connecting cable.
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10. Set the pipings and the connecting cable to the back of the chassis with the tubing holder • Hook the edge of tubing holder to tap on chassis and push the bottom of tubing holder to be engaged in the bottom of chassis.
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(4) Connecting Pipings and the cable to Outdoor unit 1) Connecting the pipings to the Outdoor unit 1. Align the center of the pipings and sufficiently tighten the flare nut with fingers. 2. Finally, tighten the flare nut with torque wrench Outdoor unit until the wrench clicks.
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Connection method of the connecting cable(Example) (1) Dismount two-caps on the conduit panel. (2) Make a hole appropriate for the passage of connection cable through on cap by tool. (for low voltage line) (3) Pass the connecting cable through the hole. (4) Properly connect the cable on the terminal block.
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(5) Checking the Drainage and Connecting the cable to Indoor unit 1) Checking the Drainage 1. Remove the Grille from the cabinet. Chassis Grille • Set the up-and-down air direction louver to open position (horizontally) by finger pressure. • Remove 3 screws. •...
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2) Connect the cable to the indoor unit 1. Connect the wires to the terminals on the control board individually according to the outdoor unit connection. • Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively.
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3) Forming the pipings 1. Wrap the connecting portion of indoor unit with Seal a small opening the Insulation material and secure it with two around the pipings with Plastic Bands.(for the right pipings) gum type sealer. • If you want to connect an additional drain hose, the end of the drain-outlet should keep distance from the ground.(Do not dip it into water, and fix it on the wall Drain hose...
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(6) Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. • Pressure in the system rises. Indoor unit • Operating current rises. • Cooling(or heating) efficiency drops. • Moisture in the refrigerant circuit may freeze and block capillary tubing.
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§ Evacuation 1. Connect the charge hose end described in the Indoor unit preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo" knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varied with the tubing length and capacity of the pump.
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(7) Test running (1) Check that all tubing and wiring have been properly connected. (2) Check that the gas and liquid side service valves are fully open. Prepare to Remote Control • Insert two batteries provided. Remove the battery cover from the remote controller.
Operation Name and Function-Remote Controller 1) Cooling Model ⁄AOperation display Displays the operation conditions. Remote Controller ⁄BStart/Stop Button • Operation starts when this button is pressed, and stops when Signal transmitter the button is pressed again. • The fan blows at low speed when start button is pressed Transmits the signals to the room initially, after a while the fan speed will be reached at the air conditioner.
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2) Heating Model ⁄AOperation display Displays the operation conditions. Remote Controller ⁄BStart/Stop Button • Operation starts when this button is pressed, and stops when the button is pressed again. Signal transmitter Transmits the signals to the room • The fan blows at low speed when start button is pressed air conditioner.
Disassembly of the parts (Indoor unit) (1) 9K 12K Models(Cooling Only, Cooling & Heting) WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Turn off circuit breaker before you start Up-and-down air checking or servicing. direction louver 1. To remove the Grille from the Chassis •...
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• Remove 2 securing screws. • Unhook the three hooks. • Pull the control box out from the chassis carefully. Hooks 3. To remove the Discharge Grille. • Remove the securing screw. • Pull the discharge grille out from the chassis carefully.
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• Push right carefully in order to unhook the taps on the right side of the chassis and pull the evapora- tor toward you. 5. To remove the Cross-Flow Fan • Loosen the screw securing the cross-flow fan to the fan motor(do not remove). •...
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(2) 18K, 24K Models(Cooling Only, Cooling & Heting) WARNING Grille Chassis Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Turn off circuit breaker before you start checking or servicing. 1. To remove the Grille from the Chassis • Set the up-and-down air discharge louver to open position (horizontally) by finger pressure.
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• Remove three screws fixing control box and motor. • Remove control box assembly holding two hooks fixing upper sides of motor. Hooks 3. To remove the Discharge Grille. • Remove a screw on the left side of chassis. • Pull the right side of the discharge grille out from the chassis first and left side carefully.
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• Slightily pull the evaporator until left tab on end- plate is clear of the chassis. • Lift the left side of evaporator slightly from the chassis carefully. • Push right carefully in order to unhook the tabs on the right inside of the chassis and pull the evapo- rator toward you.
Cycle Troubleshooting Guide 1. Trouble analysis 1. Check temperature difference between intake and discharge air and operating current. Temp. difference :approx. 0°F All amount of refrigerant leaked out. Current :less than 80% of Check refrigeration cycle. rated current Temp. Difference Temp.
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2. Product does not operate at all. (* Refer to Electronic Control Device drawing and Schematic diagram.) Turn off Main Power (After 10 seconds) Turn on Main Power Does "beeping" sound is made from the Indoor Unit? Primarily, the operating condition of Micom is OK. Check the voltage of power(About AC 208V/AC230V, 60Hz) •...
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3. The product is not operate with the remote controller. Turn on Main Power While the compressor has been stopped, the compressor does not operate owing to the delaying function for 3 minutes after stopped. When the compressor stopped Indoor Fan is driven by a low speed. At this point the wind speed is not controlled by the remote controller.
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4. Compressor/Outdoor Fan are unable to drive. Turn on Main Power Operate "Cooling Mode( )" by setting the desired temperature of the remote controller is less than one of the indoor temperature by 2°F at least. When in Fan Mode, Compressor/Outdoor Fan is stopped. Check the sensor for indoor temperature is attached as close as to be effected by the temperature of Heat Exchanger(EVA).
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5. When Indoor Fan does not operate. Does the voltage of each terminals of CN-MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 51? Does the voltage of terminal of CN-DC/DC CONNECTOR in Check connecting condition of the CN-MOTOR CON- Indoor unit corresponds to the values in the table of page 51? NECTOR Do the voltage of terminal of...
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6. When Vertical Louver does not operate. • Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the Vertical Louver with hands ¢¡ Normal • Check the connecting condition of CN-UP/DOWN Connector •...
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7. When a comunication error occurs. • The operation indicator of Indoor unit blinks five times. • The red indicator of Outdoor unit blinks five times. Check the connecting wires between Indoor and Outdoor unit for the connecting error and the contacting condition. Check the installation condition of outdoor unit.
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8. The phenomena in case of connecting error INDOOR UNIT Connector Type Phenomena Condition CN-DC/DC Open and connecting error • The same as the phenomenon of Outdoor Unit. ¤ ¤Ł¤Ø¤Œ¤º ¤ Blue ¤Ł Black ¤Ø Brown ¤Œ Red • The indoor fan does not operate. CN-MOTOR Open •...
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OUTDOOR UNIT Connector Type Phenomena Condition • All functions stop. • The operation with the remote controller, forced and OPEN test one do not operate. CN-POWER Connecting reversely • PWB pattern is damaged when applying the power. • All functions stop or the compressor does not operate. OPEN •...
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9. Voltage of Connectors according to Indoor Fan Speed - 58 -...
Electronic Control Device (1) MAIN PWB ASSY(Indoor Unit) • PWB ASSY SVC PART LIST OPTIONAL FUNCTION MODEL P/No. 6871AQ2318C OPEN OPEN KPT-1112 12K Heating Model 9K, 12K Cooling 6871AQ2318D 5.1K OPEN KPT-1112 Model 18K/24K Heating 6871AQ2318A OPEN OPEN KPT-1122A Model 18K/24K Cooling 6871AQ2318B 5.1K...
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(2) MAIN PWB ASSY(Outdoor Unit) • PWB ASSY SVC PART LIST OPTIONAL FUNCTION MODEL P/No. OR4 OR5 OR6 OR7 OR8 R15 R81 FUSE RY-FAN CN-TH HEATER 4WAY 4WAY 12K 15K 12K OPEN 12K Heating Model 6871AQ1050F 9K, 12K Cooling Model 12K 15K 12K 6871AQ1050G 18K Heating Model...