ICP HMC009KD Service Manual Download Page 52

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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).

When the sensor circuit for indoor temperature and connector are in bad
connection or are not engaged, Compressor/Outdoor Fan is stopped.

• Check the related circuit of R11(12.1K), R12(1.0K), R13(6.2K), R14(1.0K)

Micom (No.55) (Indoor unit).

• Check the indoor temperature sensor is disconnected or not(About 10k

Ω

/ at 25°C).

When the temperature around Outdoor PWB Ass'y is above 163°F the
compressor is stop and only Outdoor Fan is operating.

Turn off Main Power

• Check the electrical wiring diagram of outdoor side.
• Check the abnormal condition for the component of Compressor/Outdoor

Fan Motor.

Check Relay(RY - COMP) for driving compressor.

• When the power(About AC200V) is applied to the connecting wire termi-

nal support transferred to compressor, PWB Ass'y is normal.

• Check the circuit related to the relay(Outdoor unit).

Check point

COMP ON

COMP OFF

Between Micom(No.

DC5V

DC0V

27) and GND

Between IC8(No. 16)

Below DC 1V

About DC12V

and GND

(app)

Summary of Contents for HMC009KD

Page 1: ...ERVICE 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 In...

Page 2: ...gram 11 Operation Details 14 Test Mode 22 Display Function 23 Self diagnosis Function 23 Installation 24 Operation 41 Disassembly of the Parts Indoor Unit 43 Cycle Troubleshooting Guide 49 Electronic...

Page 3: ...Low and Auto Intermittent operation of fan at low speed Both the indoor and outdoor fan stops during defrosting Hot start will be operated after defrosting ends The indoor fan stops until the indoor...

Page 4: ...F Cooling OFF ON OFF ON Cancel Sleep Mode Timer ON or Timer OFF 1 2 3 4 5 6 7 Off Timer Fan Operates without cooling or heating Auto Operation Mode Heating Operation Mode Operation Mode Selection Fan...

Page 5: ...ting Temperature Range Cooling Mode 64 86 F 64 86 F 64 86 F 64 86 F Temperature Increment 2 F 2 F 2 F 2 F Auto Operation electronic control Yes Yes Yes Yes Self Diagnosis Yes Yes Yes Yes Timer 24hr On...

Page 6: ...tion Control left right Manual Manual Manual Remocon Type Wireless LCD Wireless LCD Wireless LCD Setting Temperature Range Cooling Mode 64 86 F 64 86 F 64 86 F Heating Mode 60 86 F 60 86 F 60 86 F Tem...

Page 7: ...1 Indoor Unit 7 Dimensions D W H Tubing hole cover Tubing hole cover Installation plate MODEL 9K 12K 18K 24K DIM W mm inch 900 35 4 1 080 42 5 H mm inch 290 11 4 290 11 4 D mm inch 183 7 2 183 7 2...

Page 8: ...24K DIM W mm inch 801 31 5 870 34 3 H mm inch 555 21 8 655 25 8 D mm inch 262 10 3 320 12 6 L1 mm inch 339 13 3 370 14 6 L2 mm inch 37 1 5 25 1 0 L3 mm inch 543 6 21 4 630 24 8 L4 mm inch 11 4 0 45 25...

Page 9: ...ANGER EVAPORATOR HEAT EXCHANGER CONDENSER COMPRESSOR GAS SIDE CAPILLARY TUBE LIQUIDSIDE OUTDOOR UNIT Cooling Only Models MODEL 9K 12K Cooling Only 18K 24K Cooling Only Pipe size Diameter Piping length...

Page 10: ...4K Cooling Heating Pipe size Diameter Piping length Elevation Gas Liquid Rated Max Rated Max 1 2 1 4 7 62m 25ft 15m 50ft 5m 16ft 8m 26ft 5 8 3 8 7 62m 25ft 15m 50ft 5m 16ft 8m 26ft For installation ov...

Page 11: ...24K Cooling Only Models Cooling Heating Models 4 3 2 1 BLDC MOTOR STEP MOTOR MAIN P C B INDOOR WIRING DIAGRAM TO OUTDOOR UNIT DISPLAY P C B ROOM PIPE THERMISTOR CN UP DOWN 3854AR7074A CN MOTOR PILLAR...

Page 12: ...ERMINAL BLOCK POWER INPUT TRANSFORMER CAPACITOR G OUTDOOR WIRING DIAGRAM TO INDOOR UNIT 3854AR2262X BL 4 3 BL BL BK BK CN TRANS RY COMP CN POWER ZNR CN DC DC FUSE 3 15A YL YL RD GN YL BR BR BR BR RD R...

Page 13: ...RANSFORMER THERMISTOR COIL CAPACITOR COMP G OUTDOOR WIRING DIAGRAM TO INDOOR UNIT 3854AR2262Y BL BR BR YL 4 3 BK BK BK BL BL BK BK RY 4WAY CN TH CN TRANS CN 4WAY CN FAN RY FAN RY HEATER RY COMP CN POW...

Page 14: ...e Airflow Direction Control Button to swing the vertical louver up and down automatically 3nd Repress the Airflow Direction Control Button to set the vertical louver at a fixed position 3 Cooling Oper...

Page 15: ...AIR TEMP SETTING TEMP 1 F Compressor OFF SETTING TEMP 1 F Compressor ON COMPRESSOR ON OFF ON OFF INDOOR FAN SPEED The electronic control operation Intake air Temperature Setting Temperature Over 78 F...

Page 16: ...ing only Heating Model Compressor ON temperature Setting temperature Compressor OFF temperature Setting temperature 6 F 16 Intake air temp below 68 F Over 68 F below 70 F over 86 F Setting temp 68 F I...

Page 17: ...en the room temperature falls between the compressor ON temperature and OFF temperature the opera tion mode is switched to the Soft Dry Operation The operation diagram is shown below 17 INTAKE AIR TEM...

Page 18: ...pe temperature is higher than 95 F indoor fan operates at low speed When the indoor pipe temperature becomes lower than 95 F indoor fan stops B point When the indoor pipe temperature is higher than 82...

Page 19: ...r pipe temperature rises over 54 F even if before 12 minutes The second defrost starts only when the outdoor pipe temperature falls below 21 F after 60 minutes passed from ending of the first defrost...

Page 20: ...hours Heating Mode with the Sleep Mode only Heating Model The operation will be stopped after 1 2 3 4 5 6 7 hours 20 INTAKE AIR TEMP SETTING TEMP 1 F Compressor ON SETTING TEMP 1 F Compressor OFF 30...

Page 21: ...fan speed for first 15 seconds then switched to proper operation mode according to intake air temperature Open the front panel upward Forced Operation Button Press the Forced Operation Button Press t...

Page 22: ...N Not on all Models 8 Times push Negative lon ON Not on all Models 9 Times push Reset Note For normal operation after checking by test mode you should reset main power 2 Outdoor Once push Ignore Commu...

Page 23: ...cator Defrost Indicator or Hot start Indicator OUT DOOR Cooling Heating Model only only Cooling Model CODE NO DIAGNOSIS Operation Indicator LED Blinks Unit Operation Once Still Operation Outdoor pipe...

Page 24: ...uce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your finger When installing in a wall Make sure the wall is strong enough to hold the unit s weight It may be n...

Page 25: ...hould not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles More than 5 cm 2 More than 5 cm 2...

Page 26: ...ugh to protect it from the vibration 1 Mount the installation plate on the wall with four Type A screws if mounting the unit on the concrete wall consider using anchor bolts Always mount the Installat...

Page 27: ...copper pipes Some gas may leak when the flare nuts are removed from the indoor unit as some gas is charged to prevent the inside of the pipe from rusting Fit the copper pipe end into the Bar of flare...

Page 28: ...oute the tubing and the drain hose straight backwards 4 Insert the connecting cable into the indoor unit through the piping hole Do not connect the cable to the indoor unit Make a small loop with the...

Page 29: ...der easily 9 Insulation of connecting tubing Because capillary tubing is installed in the outdoor unit both the liquid and gas side tubes of this air conditioner become cold or hot Heat pump model The...

Page 30: ...piping hole as desired position 4 Insert the pipings power supply cord and connecting cable into the piping hole Indoor Outdoor Connecting cable Piping To remove the holder press the bottom of chassi...

Page 31: ...ally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Indoor outdoo...

Page 32: ...oor unit onto the upper portion of installation plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate Ensure the hooks are properly seated on the...

Page 33: ...onduit panel Over 5mm 2 Connector trade size for this unit is 1 2 Refer to How to connect wiring to the terminals for instructions on connecting depending on the wire type you are using NOTE 1 shows f...

Page 34: ...id wire about 25mm 15 16 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using pliers bend the solid wire to from a loop suitable for the terminal screw 4 Shape the loop wire...

Page 35: ...raight upward Four tabs on the top inside edge of chassis are clear of their slots 2 Check the drainage Pour a glass of water on the evaporator Ensure if water flows drain hose of indoor unit without...

Page 36: ...30 Connecting cable 2 Attach the Grille onto the cabinet Grasp lower the left and right side of the Grille and engage four tabs on the top inside edge of the chassis Press the Grille toward the chassi...

Page 37: ...to the wall by saddle or equivalent 2 Tape the Pipings and Connecting cable from down to up 3 Form the pipings gathered by taping along the exterior wall make the Trap to be required to prevent water...

Page 38: ...dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the ma...

Page 39: ...ion procedure 2 When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side v...

Page 40: ...se when the vibration of the unit is conveyed to the house settle the unit with an anti vibration rubber Bolt Tubing connection 1 Check that all tubing and wiring have been properly connected 2 Check...

Page 41: ...starting operation EOFF Timer Button Used to set the time of stopping operation FTime Setting Button Used to adjust the time GTimer Set Button Used to set the timer when the desired time is obtained H...

Page 42: ...ting operation EOFF Timer Button Used to set the time of stopping operation FTime Setting Button Used to adjust the time GTimer Set Button Used to set the timer when the desired time is obtained HTime...

Page 43: ...ard 2 To remove the Control Box Remove the thermisters One from thermistor holder on evaporator the other from pipe holder Remove step motor connector motor connector from main P C B If necessary disc...

Page 44: ...ull the control box out from the chassis carefully 3 To remove the Discharge Grille Remove the securing screw Pull the discharge grille out from the chassis carefully 4 To remove the Evaporator Remove...

Page 45: ...Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Pull the left end of the cross flow fan with the selfaligning bearing out the groove Remove the cross flow fan by s...

Page 46: ...ers One from thermistor holder on evaporator the other from pipe holder Remove step motor connector motor connector from main P C B If necessary disconnect DC power supply cord from pillar terminal an...

Page 47: ...pper sides of motor 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 4 To remo...

Page 48: ...he chassis and pull the evapo rator toward you 5 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor shaft do not remove Pull the left end of the cross flow fan...

Page 49: ...When the room air humidity is relatively higher temperature difference is smaller When the room air humidity is relatively lower temperature difference is larger 2 Check temperature and pressure of r...

Page 50: ...CN FAN Connector contacting of Outdoor Fan Compressor Display PWB Ass y Check Connector related to CN DC DC Check each load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition...

Page 51: ...sor stopped Indoor Fan is driven by a low speed At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the low speed by for...

Page 52: ...1 12 1K R12 1 0K R13 6 2K R14 1 0K Micom No 55 Indoor unit Check the indoor temperature sensor is disconnected or not About 10k at 25 C When the temperature around Outdoor PWB Ass y is above 163 F the...

Page 53: ...PWB Assy s Check the connecting condi tion and disconnection of connecting wires between Indoor and Outdoor unit Check the pattern and the condition of Indoor unit PWB Ass y Check the interference of...

Page 54: ...N Connector Check the operating circuit of the Vertical Louver Confirm that there is DC 12V between pin RED of CN UP DOWN and GND Confirm that there is a soldering short at following terminals Between...

Page 55: ...controller then taking above 2 minutes Apply the power again after about 10 seconds by the power of Outdoor unit is off Check for the communication error and the operating condition of product after...

Page 56: ...ontroller The operation indicator blinks once on for 0 5 second off for 3 seconds The compressor operates continuously regardless of the setting temperature and the variation of room temperature The o...

Page 57: ...1 in the Outdoor unit are damaged when the indoor fan is operated No power for Indoor unit The signal input of the remote controller and opera tion of product is impossible The RED indicator of the Ou...

Page 58: ...6 22 1 0 0 0 12 0 12 0 12 0 12 17 0 17 0 17 0 17 0 28 2 25 2 22 6 0 0 DC Voltage 10 CONNECTORS Indoor PWB Assy CN MOTOR Indoor PWB Assy CN DC DC Outdoor PWB Assy CN DC DC 1 2 3 4 4 3 2 1 1 1 4 3 1 2...

Page 59: ...MODEL 18K 24K Heating Model 9K 12K Cooling Model 12K Heating Model 18K 24K Cooling Model P No 6871AQ2318A 6871AQ2318C 6871AQ2318B 6871AQ2318D OPTIONAL FUNCTION OR1 OR2 OR3 R15 SW2 91K 10K OPEN OPEN K...

Page 60: ...Model P No 6871AQ1050A 6871AQ1050G 6871AQ1050F 6871AQ1050C 6871AQ1050B 6871AQ1050D OPTIONAL FUNCTION OR4 OR5 OR6 OR7 OR8 R15 R81 FUSE 12K 15K 12K OPEN o o o o o o 12K 15K 12K 10K x x x x x x 56K 91K...

Page 61: ...3 DISPLAY PWB ASSY 61 9K 12K 18K 24K LD1 LD2 LD4 LD3 R ASM 6046AQ3020A 2 J1 LD1 LD2 CN MAIN LD3 LD4 1 7 REMOCN RECEIVER P C B ASM 6870AQ3148A 6870AQ3149A P No 6047AQ3021E P No 6871AQ3149A...

Page 62: ...62 Schematic Diagram...

Page 63: ...63...

Page 64: ...1 Indoor Unit 9 12K 3828AR7036Q 6 4 Exploded View Replacement Parts List 16 12 10 9 15 1 4 5 7 8 6 2 3 19 18 17 28 26 27 30 20 21 22 29 23 24 25 13 11 14...

Page 65: ...251AR1222C 5009AR1179A 3530AR1117A 3530AR1118S 5231AR1561W 5990AR3299B 5990AR3300A 5230AR1151A 3530AR3301A 4025AR4107A 3509AR3459B 3508AR2243A 6711AR2905A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

Page 66: ...A 3530AR1117A 3530AR1118S 3531AR1365W 5990AR3299B 5990AR3300A 5230AR1151A 3530AR3301A 4025AR4107A 3509AR3459B 3508AR2243A 6711AR2905A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R R R...

Page 67: ...530AR1117A 3530AR1118S 3531AR1561X 5990AR3299B 5990AR3300F 5230AR1151A 3530AR3301A 4025AR4107A 3509AR3459A 3508AR2243A 6711AR2905B 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 R R R R R...

Page 68: ...2 Indoor Unit 18K 24K 3828AR7036Q 68 26 27 23 28 19 25 24 21 20 8 7 6 4 5 1 3 18 15 14 13 16 11 10 9 12 17 22 2...

Page 69: ...3C 4781AR2737T 5009AR1385G 5251AR1222G 3H03716B 3550AR3289Q 5231AR1143A 5990AR3544A 5990AR3583A 3530AR1319L 3530AR1254A 3531AR1347Q 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 R R R R R R...

Page 70: ...R2773C 4781AR2737P 5009AR1385G 5251AR1222G 3H03716B 3550AR3289Q 5231AR1143A 5990AR3544A 5990AR3583A 5237AR1445R 3530AR1254A 3531AR1347R 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 R R R R...

Page 71: ...631AR2773C 4781AR2737T 5009AR1385G 5251AR1222G 3H03716B 3550AR3289Q 5231AR1143A 5990AR3544A 5990AR3583A 3530AR1319L 3530AR1254A 3531AR1347Q 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 R R...

Page 72: ...R2773C 4781AR2737P 5009AR1385G 5251AR1222G 3H03716B 3550AR3289Q 5231AR1143A 5990AR3544A 5990AR3583A 5237AR1445R 3530AR1254A 3531AR1347R 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 R R R R...

Page 73: ...3828AR7036Q 7 3 3 Outdoor Unit 9 12K 5 28 33 9 8 6 4 26 10 11 12 13 7 3 34 22 21 20 25 1 23 24 2 29 27 30 31 32 15 16 14 18 17 19...

Page 74: ...1A20014B 4791AR7047A 2H02385F 1H00697H 3H03465E 3720AR7035B 3550AR2957B 5006AR4362A 5425AR2485C 5300AR2915C 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 1 R R R R R R R R R R R R R R...

Page 75: ...465E 3720AR7035B 3550AR2957B 5006AR4362A 5425AR6060B 5425AR6061A 5300AR2915C 1 1 1 1 1 1 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 R R R R R R R R R R R R R R R R R R R R R R R R R R R R R B...

Page 76: ...00697H 3H03465E 3720AR7035B 3550AR2957B 5006AR4362A 5425AR6060B 5425AR6061A 5300AR2915C 1 1 1 1 1 1 3 3 3 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 R R R R R R R R R R R R R R R R R R R R R...

Page 77: ...3828AR7036Q 77 31 32 2 28 6 5 3 7 4 15 14 23 24 25 30 1 33 29 27 26 18 19 17 16 20 21 22 8 9 11 13 10 12 4 Outdoor Unit 18K...

Page 78: ...3550AR2886B 5006AR4362A 4A01556A 4681A20013B 4960AP1361A 1A00195B 2H02110A 3721A20005B 3H03266K 3720AP0003D 1 1 1 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 R R R R R R R R R R R R R R R R R R R...

Page 79: ...3550AR2886B 5006AR4362A 4A01556A 4681A20013B 4960AP1361A 1A00195B 2H02110A 3721A20005B 3H03266K 3720AP0003D 1 1 1 3 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 R R R R R R R R R R R R R...

Page 80: ...5 Outdoor Unit 24K 3828AR7036Q 80 34 35 2 31 17 16 26 27 28 18 33 1 36 32 30 29 21 22 20 19 23 24 25 4 5 6 7 8 3 15 13 14 9 10 11 12...

Page 81: ...3550AR2886B 5006AR4362A 4A01556A 4681A20013B 4960AP1361A 1A00195B 2H02110A 3721A20005B 3H03266K 3720AP0003D 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 R R R R R R R R R R R R R R R R R...

Page 82: ...4A01556A 4681A20013B 4960AP1361A 1A00195B 2H02110A 3721A20005B 3H03266K 3720AP0003D 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 R R R R R R R R R R R R R R R R R R R R R R...

Page 83: ...P NO 3828AR7036Q Printed in Korea...

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