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Service Manual

25

Features of Controller

2. Feature of Main Controller

IC02K

D06D

RY13

HEAT(A)

RY14

HEAT(B)

FAN_OUT

RY10

FAN(IN)

RY12

RY11

(A)

(B)

FAN_OUT

CN_POWER

FUSE

(L)

(N)

ZNR01J

C01J

NF01J

CN_PHASE

SR

IN

CN_HAETER

A

B

R03D

T

D07D

IC03K

A

CN_FAN

B

D11K

R18K

D08D

R08K

R17K

C01D

D11D

D01D

R11D

NTC01D

4WAY(A)

COMP(B)

RY3

HYMID

RY4

COMP(A)

RY5

RY9

4WAY(B)

RY7

RY8

BP(B)

RY6

BP(A)

JP12

CN_THMO

CN_SUB

CN_RETURN_AIR

C05D

D03D

IC01K

S/TRANS

IC01D

OP_J1

IC02D

CN_HUMID

C03D1

COMP(B)

CN_COMP

COMP(A)

C03D

C09D

ZD02D

L01D

D02D

JP02

C07D

ASM:6871A10041

PWB:6870A20012A

JP11

CN_BYPASS

4WAY(B)

4WAY(A)

JP07

MICOM

BP(B)

BP(A)

JP01

IC03D

OUT

JP03

JP04

JP05

JP06

IN

1

5

10

15

JP09

JP08

JP10

60

OUT

IN

50

55

12

3

CN_B_CYCLE

CN_A_CYCLE

CN_TEMP_OUT

ZD01F

(B)

CN_H/P (WH)

(B)

(A)

CN_L/P(YL)

(A)

TEST_SW

JP18

JP17

20

C02A

25

30

L02K

LED4

JP14

D09K

SWITCH

45

4

LED3

LED2

LED1

35

40

CN_ZONE

OSC01B

IC01A

CN_CC

JP15

L01K

CN_REMO

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Содержание EK-H2408C00

Страница 1: ...Single Packaged Air Conditioner SERVICE MANUAL MODEL EK H2408C00 ...

Страница 2: ...F CONTENTS Safety Precautions 3 Model Number Nomenclature 8 General Data 9 Dimensions 10 Refrigerant Circuit diagram 11 Wiring Diagram 12 Trouble Shooting Guide 13 Electric Parts Trouble Shooting Guide 17 Feature of Controller 24 Exploded View and Replacement Parts List 30 ...

Страница 3: ...ity of injury or damage to properties only WARNING Installation Be sure not to do Be sure to follow the instruction Safety Precautions Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair...

Страница 4: ...ge to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Take care to ensure that power ca...

Страница 5: ...product on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk o...

Страница 6: ... exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody ...

Страница 7: ...etal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anything on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every four weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause prod...

Страница 8: ...t Air Conditioner 3 Type C Cooling Only H Heat pump 4 Capacity Btu h 036 36000 Btu h 360 360000Btu h 8 380 415V 50Hz 3Phase 5 Voltage frequency phase 9 380V 60Hz 3Phase B 220V 60Hz 3Phase D 440 460V 60Hz 3Phase 6 Air flow Top Side C Convertible Air Flow Down Horizontal H Horizontal Air Flow 0 MICOM Control 10 7 Method SEER A Mechanic Control 10 D Mechanic Control 13 8 Development Sequence Given Nu...

Страница 9: ...an Type No Used Diameter in Drive Type CFM No Motor Motor Output Hp Motor RPM Indoor Fan Type No Used Diameter Width inch inch Drive Type Motor Step No Motors Motor Output standard oversized hp hp Motor rpm standard oversized hp hp Drain Connection Size in Dimensions WxHxD inch mm Net Weight kg lbs 20 EK H2408C00 225 000 65 941 56 699 250 000 73 268 62 999 380 415V 3PH 70 26 500 27 800 7 500 8 5 9...

Страница 10: ...re 1C Figure 1A UNITS H I J K L M N 49 7 32 1250 86 5 8 2200 114 3 32 2898 7 3 32 180 48 13 32 1230 3 5 32 80 3 5 32 80 34 5 8 880 17 5 8 448 23 5 8 600 3 31 32 101 7 5 32 182 39 3 8 1000 5 1 8 137 5 25 19 32 650 UNITS A B C D E F G H HORIZONTAL FLOW APPLICATION Figure 1B Unit inch mm Unit inch mm 20RT 20RT 23 5 8 600 15 5 8 396 34 5 8 880 6 11 16 170 6 4 8 165 39 3 8 1000 6 11 16 170 25 19 23 650...

Страница 11: ...COIL PRESSURE CHECK PORT PRESSURE CHECK PORT INDOOR COIL HI PRESSURE SWTICH LOW PRESSURE SWTICH CHECK VALVE CHECK VALVE Cooling Heating ACCUM CAPILLARY TUBE 2 0 I D 3EA CHECK VALVE CHECK VALVE COMP A 1 COMP A 2 CAPILLARY TUBE 2 0 I D 1EA PRESSURE CHECK PORT PRESSURE CHECK PORT HI PRESSURE SWTICH LOW PRESSURE SWTICH CHECK VALVE CHECK VALVE Cooling Heating ACCUM COMP A 1 COMP A 2 Refrigerant Circuit...

Страница 12: ...12 Single Packaged Air Conditioner Wiring Diagram Wiring Diagram EK H2408C00 54 003399 19 Rev a 3854U20290U ...

Страница 13: ...tactor Measure power sypply with a tester in case that the same power source is supplied to other equipment except the unit what and where troubled can be discovered by checking the operation of other equipment Measure it with a tester Make short circuit then measure it with tester Check it with the eyes or tester Repair a switch box and relative instrument Replacement of fuse Request a power supp...

Страница 14: ...Only compressor does not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Magnetic switch for compressor motor Compressor motor High pressure switch Electric circuit Defective contact magnetic coil troubled Troubled over heated layer short Troubled or defective contact or operating Defective connection or disconnection of the circuit for compressor Check it with the eyes on with a tester Check ho...

Страница 15: ...Checking In the event that difference between the saturating temperature corresponding to high pressure and the temperature of air discharged from the outdoor coil is more than 15 C incondensable gas may be blended Check it with a pressure gauge Confirm the wind blowing out upward Check it with eyes Wash it by means of something like chemical washing Extract air by vacuum pump then replenish charg...

Страница 16: ...spot Correct or clear the foreign bodies Cleaning 4 All the functions are performed as specified but very noisy and vibrant WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Compressor Blower Screws Electric troubles Magnetic contactor Others Checking Checking Checking Checking Improper installation Checking Replace the compressor Repair or replace it Clear the foreign bodies Correct Repair and clean o...

Страница 17: ...7036 on the main PCB DC5V NO 1 Exchange IC03D 7805 on the main PCB 1 Exchange IC01A 7036 on the main PCB 1 Exchange OSC01B 2 Check the pattern around OSC01B on the main PCB Is the input voltage of remote controller DC12V YES NO YES Is the power ON NO 1 Check the FUSE 2 Check the input voltage of Main PCB ASS Y 1 Check or exchange the IC03D on the Main PCB 2 Check or exchange the Connector RED BROW...

Страница 18: ...ve cause of Check YES YES Is there OSC01B vibration on the remote controller PCB NO 1 Check 220V Power on the MAIN PCB 1 Exchange OSC01B 2 Check the pattern around OSC01B on the remote controller PCB Is any key on the remote controller keeping pressed 1 Check Keys 2 Repair or exchange Key Is there trouble in the remote controller PCB ASS Y NO YES NO Are there trouble in LCD parts YES 1 Check crack...

Страница 19: ... the MAIN PCB DC0V Is the magnetic contactor for compressor ON 1 Check Compressor and Capacitor for Compressor NOTE 3ø model has not capacitor for compressor YES NO 1 Set following Set Temp Room Temp NO NO 1 Check or exchange IC03D on the MAIN PCB NO YES Is the voltage between A B COMP B of CN COMP and NEUTRAL 220V NO 1 Check or exchange IC01M 2 Check 3 minutes time delay 1 Check or exchange RY4 R...

Страница 20: ...PIN on the MAIN PCB 0V Is the magnetic contactor for heater ON Check or exchange E Heater 1 Set following Set temp Room temp 1 Check or exchange IC03D IC02D on the MAIN PCB Is the voltage between A B Heat B of CN HEAT and NEUTRAL 220V 1 Check or exchange IC02M 1 Check or exchange RY13 RY14 Heat A B Set temp Room temp 1 Check the wiring of Magnetic contactor 2 Exchange Magnetic contactor YES YES YE...

Страница 21: ... MAIN PCB 0V Is the magnetic contactor for humidifier ON Check the humidifier 1 Press humidifier Key 1 Check or exchange IC03D IC02D on the MAIN PCB Is the voltage between 1PIN of CN HUMID and NEUTRAL 220V 1 Check or exchange IC01M 1 Check or exchange RY3 Is the HUMID LCD ON 1 Check the wiring or Magnetic contactor 2 Exchange Magnetic contactor YES YES YES NO YES YES NO NO NO NO YES NO Possible tr...

Страница 22: ...ge RY10 NO Is the compressor operating Is it cooling operation 1 Press power ON OFF button 2 Select cooling operation 1 Set following Set temp Room temp 2 Wait if the unit has operating with 3 minute time delay YES NO YES NO Is the output voltage of IC02M s 13 12 OUT FAN B on the MAIN PCB 0V Is the Power relay for outdoor motor ON Check the outdoor motor A B 1 Check or exchange IC02M 1 Check the w...

Страница 23: ... s 16PIN on the MAIN PCB 0V Is the magnetic contactor for heater OK Check or exchange E Heater 1 Set following Set temp Room temp 1 Check or exchange IC03D on the MAIN PCB Is the voltage between 1PIN of CN5 and NEUTRAL 220V 1 Check or exchange IC01M 1 Check or exchange RY1 Set temp Room temp 1 Check the wiring of Magnetic contactor 2 Exchange Magnetic contactor YES YES YES NO YES YES NO YES NO NO ...

Страница 24: ...24 Single Packaged Air Conditioner Features of Controller 1 Main Controller Circuit Diagram Features of Controller ...

Страница 25: ...Y B RY7 RY8 BP B RY6 BP A JP12 CN_THMO CN_SUB CN_RETURN_AIR C05D D03D IC01K S TRANS IC01D OP_J1 IC02D CN_HUMID C03D1 COMP B CN_COMP COMP A C03D C09D ZD02D L01D D02D JP02 C07D ASM 6871A10041 PWB 6870A20012A JP11 CN_BYPASS 4WAY B 4WAY A JP07 MICOM BP B BP A JP01 I C 0 3 D OUT JP03 JP04 JP05 JP06 IN 1 5 10 15 JP09 JP08 JP10 60 OUT IN 50 55 1 2 3 CN_B_CYCLE CN_A_CYCLE CN_TEMP_OUT ZD01F B CN_H P WH B A...

Страница 26: ...ontroller PCB ASS Y 4 Feature of Remote Controller LCD HI MED LO JET AUTO Humidify ZONE 1 2 3 4 AUTO SWING OPERATION Program set SUB FUNCTION SET TEMP Room Temp Heater Defrost Filter Preheat Out door Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 Time Operation unit ...

Страница 27: ...CB 2 Check the temp sensor of outdoor room 1 Check Low Pressure Switch 2 Check Refrigerant pressure 1 Check Low Pressure Switch 2 Check Refrigerant pressure 1 Check High Pressure Switch 2 Check Refrigerant pressure 1 Check High Pressure Switch 2 Check Refrigerant pressure 1 Check Power Connection 1 Check Power Connection 1 Check the connecting wire between main PCB remote controller 2 Check the in...

Страница 28: ...Name Remarks 1 EAN30788301 MICOM MAIN H P 2 6920WRD008A RELAY RY3 4 5 10 11 13 14 3 6920AQ9054F RELAY RY1 2 8 9 12 4 6212A90001E RESONATOR 5 6900AQ9028N FUSE 6 6102AQ9075A 5400403601 5400403701 5400061906 5400314805 5400061413 5400057601 VARISTOR No Part Name Remarks 1 OITO641010B MICOM Remote Controller MICOM 2 6304A30001C LCD 3 6871A20043A Remote C PCB ASM Cooling Only 4 6871A20043H 5400403801 5...

Страница 29: ...ndition YES 1 Initialize micom 2 A D convert 3 Main PCB Waiting cooling operation 4 Remote controller Waiting input YES START Power supply Go to A Fan only operating Stop condition YES Go to A Dehumidification Mode Dehumidification operating YES Stop condition YES Go to A Set Temp Indoor Temp Heater operating YES Heater operation mode YES Stop condition YES NO NO NO NO NO NO NO NO A YES Go to A ...

Страница 30: ...2 435312 554031 546810 549610 552111 3 267110 346810 263230 263230 559010 552201 548490 566000 2 566000 1 237204 2 237204 2 137213 2 137213 3 237204 1 237204 1 137213 1 342800 359012 349600 W6920 249950 W0CZZ 268714 566001 2 566001 1 354210 152302 330870 552111 2 552111 1 145610 W4400 145610 137210 1 137210 2 554160 552202 561410 561410 ...

Страница 31: ...AB 559010 FAN ASSEMBLY PROPELLER 5901A10010A 566000 1 SWITCH PRESSURE 3A02524H Low Pressure Switch 566000 2 SWITCH PRESSURE 3A02524L High Pressure Switch 566001 1 SWITCH MAGNET 6600B000032 For Indoor Motor 566001 2 SWITCH MAGNET 6600B000041 For Compressor 137210 1 PANEL ASSEMBLY FRONT INDOOR 3721A10073B 137210 2 PANEL ASSEMBLY FRONT INDOOR 3721A10074B 137213 1 PANEL ASSEMBLY SIDE 3721A10075D 13721...

Страница 32: ...P No 3828A31005F P No 5400305106 Rev a ...

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