Table of Contents
Troubleshooting
Related Manuals for ICP HMC036KDT1
Summary of Contents for ICP HMC036KDT1
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Page 1: Service Manual
DELUXE HIGH WALL MINI SPLIT SERVICE MANUAL MODEL : HMC036KDT1 HMH036KDT1 CAUTION -BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL. -ONLY FOR AUTHORIZED SERVICE PERSONNEL. International Comfort Products... -
Page 2: Table Of Contents
Multi Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions............................3 About MPS ..............................7 Product Specifications ............................8 Dimensions ................................10 Refrigeration Cycle Diagram ..........................12 Wiring Diagram ..............................13 Electronic Control Device..........................14 Schematic Diagram ............................17 Functions ................................20 Operation Details..............................23 2-way, 3-way Valve..............................30 Cycle Troubleshooting Guide..........................34 Electronic Parts Troubleshooting Guide ......................35 Installation ................................42 Operation ................................56... -
Page 3: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury. - Page 4 Safety Precautions Do not modify or extend the Do not install, remove, or re- Be cautious when unpacking power cable. install the unit by yourself and installing the product. (customer). • There is risk of fire or electric shock. • There is risk of fire, electric shock, •...
- Page 5 Safety Precautions Do not store or use flammable gas or com- If strange sounds, or smell or smoke comes bustibles near the product. from product. Turn the breaker off or discon- nect the power supply cable. • There is risk of fire or failure of product. •...
- Page 6 Safety Precautions CAUTION Installation check for gas (refrigerant) Install the drain hose to Keep level even when leakage after installation or ensure that water is drained installing the product. repair of product. away properly. • Low refrigerant levels may cause fail- •...
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Page 7: About Mps
About MPS About MPS MPS (Multi Power System) Conventional (On/Off Operation) • During a Conventional Air Conditioning Cycle, the Compressor must turn on and off to reach desired Temperature setting. • A large portion of power is used during Restart. This causes unnecessary power consumption. -
Page 8: Product Specifications
Product Specifications Product Specifications 1. HMC036KDT1 Operation Remarks 3-Unit On 2-Unit On 1-Unit On Unit Item 34,200/36,000 22,800/24,000 11,400/12,000 208/230V Cooling Capacity Btu/h(kcal/h) Heating Capacity Moisture Removal at 230V Power Source ø, V, Hz 1Ø, 208/230V, 60Hz Indoor – –... - Page 9 Product Specifications 2. HMH036KDT1 Operation Remarks 3-Unit On 2-Unit On 1-Unit On Unit Item 34,600/36,000 23,040/24,000 11,500/12,000 208/230V Cooling Capacity Btu/h(kcal/h) Heating Capacity – – – Moisture Removal at 230V Power Source ø, V, Hz 1Ø, 208/230V, 60Hz Indoor – –...
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Page 10: Dimensions
Dimensions Dimensions 1. Indoor Unit Tubing hole cover Installation plate Left rear piping Right rear piping MODEL HMC036KDT1, HMH036KDT1 10 MPS Multi Air Conditioner... -
Page 11: Service Manual
Dimensions 2. Outdoor Unit Gas side 3-way valve Liquid side 2-way valve MODEL HMC036KDT1, HMH036KDT1 1038 1035 64.5 Service Manual 11... -
Page 12: Refrigeration Cycle Diagram
Refrigeration Cycle Diagram Refrigeration Cycle Diagram 1. HMH036KDT1 Indoor Side Outdoor Side 4- WAY Valve COMP A COMP B 2. HMC036KDT1 Indoor Side Outdoor Side COMP A COMP B Capillary Solenoid Valve L.E.V 3-Way Valve 2-Way Valve 12 MPS Multi Air Conditioner... -
Page 13: Wiring Diagram
Wiring Diagram Wiring Diagram Indoor Unit HMC036KDT1 HMH036KDT1 MAIN PCB ASSY FORCED OPERATION AUTO MOTOR RESTART REMOTE CONTROL THERMISTOR (OUT PIPE) THERMISTOR (IN PIPE/AIR) STEP MOTOR CN-DISP1 RD BK BR BL PILLAR TERMINAL DISPLAY PCB ASSY TO OUTDOOR UNIT INDOOR WIRING DIAGRAM... -
Page 14: Electronic Control Device
Electronic Control Device Electronic Control Device Indoor Unit • MAIN P.C.B DC ASM 14 MPS Multi Air Conditioner... - Page 15 Electronic Control Device Outdoor Unit • MAIN P.C.B DC ASM Service Manual 15...
- Page 16 Electronic Control Device Display P.C.B ASM 16 MPS Multi Air Conditioner...
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Page 17: Schematic Diagram
Schematic Diagram Schematic Diagram Indoor Unit Service Manual 17... - Page 18 Schematic Diagram Outdoor Unit 18 MPS Multi Air Conditioner...
- Page 19 Schematic Diagram Service Manual 19...
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Page 20: Functions
Functions 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 •... -
Page 21: Remote Controller
Functions Remote Controller Operation ON/OFF Operation Mode Selection Cooling Operation Mode.( Auto Operation Mode.( (Cooling (Heating Healthy Dehumidification Operation Mode.( Heating Operation Mode.( model only) model only) Fan Speed Selection (Low) (Med) (High) (CHAOS) Room, Temperature Display : High: 39°C(102˚F) LOW : 11°C(52˚F) Temperature Setting HIGH... - Page 22 Display Function Display Function 1. Heating Model 2. Cooling Model Operation Indicator Operation Indicator • Cooling, Soft Dry, Fan • Cooling, Soft Dry, Fan, Heating Sleep Timer Indicator Sleep Timer Indicator • Sleep Mode • Sleep Mode Timer Indicator Timer Indicator •...
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Page 23: Operation Details
Operation Details Operation Details Main Unit Function 1) C/O Model Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on) Sleep Timer Indicator •... - Page 24 Operation Details • While in compressor off, the indoor fan repeats low airflow speed and pause. • While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidifica- tion operation and 4-min compressor off repeat. Compressor ON Temp.
- Page 25 Operation Details Fuzzy Operation (C/O Model) • According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on. Compressor ON Temp Setting Temp + 0.5°C Compressor OFF Temp...
- Page 26 Operation Details 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.
- Page 27 Operation Details Off-Timer Operation • When the set time is reached after the time is input by the remote control, the appliance stops operating. • The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. •...
- Page 28 Operation Details Auto Restarting Operation • When the power is restored after a sudden power failure while in appliance operation, the mode before the power failure is kept on the memory and the appliance automatically operates in the mode on the memory. •...
- Page 29 Operation Details Remote Control Operation Mode • When the remote control is selected by the slide switch on the main unit, the appliance operates according to the input by the remote control. Protection of the evaporator pipe from frosting • If the indoor pipe temp is below 0°C in 7 min. after the compressor operates without any pause while in cool- ing cycle operation mode, the compressor and the outdoor fan are turned off in order to protect the indoor evaporator pipe from frosting.
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Page 30: 2-Way, 3-Way Valve
2-way, 3-way Valve 2-way, 3-way Valve 2-way Valve (Liguid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench Open position (4mm) Closed position Flare nut Flare nut Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit Works... - Page 31 2-way, 3-way Valve (1) Pumping down Liquid side Indoor unit Outdoor unit Close 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Close 2-Way valve Gas side Open 3-Way valve manifold gauge Low- handle Hi- handle (CLOSE) (CLOSE) Procedure •...
- Page 32 2-way, 3-way Valve (2) Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Open 2-Way valve Gas side Open 3-Way valve manifold gauge Vacuum pump Low- handle Hi- handle...
- Page 33 2-way, 3-way Valve (3) Gas Charging (After Evacuation) Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Open 2-Way valve Gas side Open 3-Way valve manifold gauge Charging cylinder Low-handle Hi- handle (OPEN) Check valve (OPEN)
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Page 34: Cycle Troubleshooting Guide
Cycle Troubleshooting Guide Cycle Troubleshooting Guide Trouble analysis 1. Check temperature difference between intake and discharge air and operating current. Temp. difference : approx. 0°C All amount of refrigerant leaked out. Current : less than 80% of Check refrigeration cycle. rated current Temp. -
Page 35: Electronic Parts Troubleshooting Guide
Electronic Parts Troubleshooting Guide Electronic Parts Troubleshooting Guide 1. The Outdoor Unit 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. - Page 36 Electronic Parts Troubleshooting Guide 2. 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.
- Page 37 Electronic Parts Troubleshooting Guide 3. When cooling does not operate 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 1°C at least. When in Air Circulation 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).
- Page 38 Electronic Parts Troubleshooting Guide 4. When indoor Fan does not operate.(or "ON/OFF" led of display blinks 8 times) Turn off Main power Check it (Indoor/Outdoor)the connection line is complied with Wiring Diagram Bad connection Good connection Correct connection line Check the line fuse in the outdoor unit Check the connection of CN-MOTOR check the operation of blower by manual Check POLY S/W in indoor PCB Ass'y...
- Page 39 Electronic Parts Troubleshooting Guide 5. 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 •...
- Page 40 Electronic Parts Troubleshooting Guide 6. When Heating does not operate Turn ON Main Power Operate “Heating Mode( )” by setting the desired temperature of the remote control is higher than one of the indoor temperature by 2°C at least. In heating Mode, the indoor fan operates in case the pipe temperature is higher than 28°C.
- Page 41 Electronic Parts Troubleshooting Guide 7. Outdoor unit does not operate at all. Check Outdoor Unit PCB Board Operation Check in Outdoor Content Remedy Items • Power Transformer - About AC220V/240V ± 10% - Check the power voltage (Outdoor unit) • Replace Trans - About AC14 ±...
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Page 42: Installation
Installation Installation (1) Installation of Indoor, Outdoor unit 1) Selection of the best location Front 1. Indoor unit There should not be any heat source or steam • Left near the unit. • There should not be any obstacles to prevent Rear left the air circulation. - Page 43 Installation 2) Indoor Unit Installation The mounting wall should be strong and solid enough to protect it from the vibration. Installation Plate 1. Mount the installation plate on the wall with four Type "A" screws. (If mounting the unit on the concrete wall, consid- er using anchor bolts.) marking-off line Type "A"...
- Page 44 Installation (2) Piping and Drainage of Indoor Unit 1) Preparation of pipings Pipe cutter 1. Cut the pipes and the cable. • Use the accessory piping kit or the pipes pur- chased locally. Slanted Rough • Measure the distance between the indoor and the outdoor unit.
- Page 45 Installation 2) Connection of Pipings Installation plate 1. Remove the installation plate • Pull the two '∆' marked portion of bottom of the chassis and pull the installation plate out of chas- sis. Pull 2. Route the drain hose and the indoor tubing. Pull For left rear piping 3.
- Page 46 Installation 6. Indoor unit installation. • Hook the indoor unit onto the upper position of the installation plate. (Engage the two hooks of the rear top of the indoor unit with the upper Connecting edge of the installation plate.) cable Ensure the hooks are properly seated on the installation plate by moving it in left and right.
- Page 47 Installation 9. 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 chas- sis and push the bottom of tubing holder to be engaged in the bottom of chassis.
- Page 48 Installation (3) 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 until the wrench clicks.
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Page 49: Outdoor Unit
Installation Connection of the cable Outdoor unit 1. Remove the cover control from the unit by Terminal block loosening the screw. Over 5mm Holder for A-UNIT B-UNIT C-UNIT power supply cord Power supply Power Source 208/230V AC Connecting cable(Low voltage) Connecting cable(Low voltage) Connecting cable(Low voltage) cable... - Page 50 Installation Connection method of the connecting cable(Example) (1) Dismount two-caps on the conduit panel. Terminal (2) Make a hole appropriate for the passage of connec- block tion cable through on cap by tool. (for low voltage line) (3) Pass the connecting cable through the hole. Clamp cord (4) Properly connect the cable on the terminal block.
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Page 51: Connect The Cable To The Indoor Unit
Installation CAUTION CAUTION If a power plug is not to be used, provide a circuit breaker between power source and the unit as shown below. Main power source Power source Fuse or breaker Model Capacity Circuit Breaker Conditioner 1ø,230/208V Use a circuit 1ø,230/208V breaker or time 1ø,230/208V... - Page 52 Installation (5) Form the piping (4) Checking the drainage 1. To remove the front panel from the indoor unit, 1. Form the piping by wrapping the connecting por- remove the front panel from the indoor unit cabinet. tion of the indoor unit with insulation material and Set the air direction louvers up-and-down to the posi- secure it with two kinds of vinyl tapes.
- Page 53 Installation (6) Air Purging of the Pipings and indoor unit The air which contains moisture remaining in the is refrigeration cycle may cause a malfunction on the compressor. 1. Confirm that both the liquid side valve and the gas side valve are set to the closed position. 2.
- Page 54 Installation (7) Maximum Length of Pipe and Freon Extra Charge Multi Piping Type Max Elevation Max total length Max length of Min length of Max elevation between each Capacity(Btu/h) of all pipes each pipe each pipe between indoor indoor unit and (A+B+C) (A/B/C) (A/B/C)
- Page 55 Installation (8) Test running 1) Connection of power supply 1. Connect the power supply cord to the inde- Battery Cover pendent power supply. 2. Prepare the remote control. • Insert two batteries provided. Remove the battery cover from the remote con- troller.
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Page 56: Operation
Operation Operation (1) Name and Function-Remote Control (Door Closed) REMOTE CONTROL Signal transmitter Transmits the signals to the room air conditioner. Signal transmitter START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. OPERATION MODE SELECTION BUTTON Used to select the operation mode. - Page 57 Operation (2) Name and Function-Remote Control (Door Opened) REMOTE CONTROL Signal transmitter Transmits the signals to the room air conditioner. Signal transmitter ON/OFF TIMER BUTTONS Used to set the time of starting and stopping operation. TIME SETTING BUTTONS Used to adjust the time. TIMER SET/CANCEL BUTTONS Used to set the timer when the desired time is obtained and to cancel the Timer operation.
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Page 58: Disassembly Of The Parts (Indoor Unit)
Disassembly of the parts (Indoor unit) Disassembly of the parts (Indoor unit) Warning : Disconnect the unit from power supply before mak- ing any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis. •... - Page 59 Disassembly of the parts (Indoor unit) 2. To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis care- fully. 3. To remove the Discharge Grille. • Pull the discharge grille out from the chassis carefully.
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Page 60: Exploded View And Replacement Parts List
Exploded View and Replacement Parts List Exploded View and Replacement Parts List 1. Indoor Unit HMC036KDT1, HMH036KDT1 60 MPS Multi Air Conditioner... - Page 61 Exploded View and Replacement Parts List Parts List - Indoor Unit PART No. LOCATION DESCRIPTION CODE HMC036KDT1 HMH036KDT1 131410 CHASSIS ASSEMBLY 3141A20003D 3141A20003D 135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10023X 3531A10023X 135316 GRILLE ASSEMBLY, FRONT 3531A10099J 3531A10099H 135500 COVER 3550A10107A 3550A10107A 146811 MOTOR ASSEMBLY, STEP...
- Page 62 Exploded View and Replacement Parts List 2. Outdoor Unit HMC036KDT1 62 MPS Multi Air Conditioner...
- Page 63 Exploded View and Replacement Parts List Parts List - Outdoor Unit PART No. LOCATION DESCRIPTION CODE HMC036KDT1 135301 GRILLE, DISCHARGE 3530A20006B 135314 GRILLE, REAR 3530A10176B 263230-1 THERMISTOR ASSEMBLY 6323A20028A 263230-2 THERMISTOR ASSEMBLY 6323A20026A 430410 BASE ASSEMBLY, OUTDOOR 3041AP7177D 435511 COVER ASSEMBLY, CONTROL(OUTDOOR)
- Page 64 Exploded View and Replacement Parts List HMH036KDT1 64 MPS Multi Air Conditioner...
- Page 65 Exploded View and Replacement Parts List Parts List - Outdoor Unit PART No. LOCATION DESCRIPTION CODE HMH036KDT1 135301 GRILLE, DISCHARGE 3530A20006B 135314 GRILLE, REAR 3530A10176B 263230-1 THERMISTOR ASSEMBLY 6323A20028A 263230-2 THERMISTOR ASSEMBLY 6323A20026A 430410 BASE ASSEMBLY, OUTDOOR 3041AP7177D 435511 COVER ASSEMBLY, CONTROL(OUTDOOR) 3551A10044A 435512 COVER ASSEMBLY, TOP(OUTDOOR)
- Page 66 April 2004 Printed in Korea P/No.: 3828A20412R...