ICP HMC030KD1, HMH030KD1 Service Manual

DELUXE HIGH WALL MINI SPLIT

SERVICE MANUAL

MODEL : HMC030KD1

HMH030KD1

CAUTION

-BEFORE SERVICING THE UNIT, READ THE "SAFETY
PRECAUTIONS" IN THIS MANUAL.

-ONLY FOR AUTHORIZED SERVICE PERSONNEL.

International Comfort Products

- 2 -

Contents

Functions

.................................................................................................................................3

Product Specifications

..........................................................................................................5

Dimensions

..............................................................................................................................7

Refrigeration Cycle Diagram

..................................................................................................9

Pipe Length and the Elevation.............................................................................................10

Wiring Diagram

......................................................................................................................11

Operation Details

..................................................................................................................13

Display Function

...................................................................................................................20

Self-diagnosis Function

........................................................................................................20

Installation

.............................................................................................................................21

Operation

...............................................................................................................................37

Disassembly of the parts (Indoor Unit)

...............................................................................39

3-way Valve

............................................................................................................................43

Cycle Troubleshooting Guide

...............................................................................................48

Electronic Parts Troubleshooting Guide

.............................................................................49

Electronic Control Device

.....................................................................................................55

Schematic Diagram

...............................................................................................................58

Exploded View and Replacement Parts List

.......................................................................60

- 3 -

Functions

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Time Delay Safety Control

Indoor Fan Speed Control

Operation indication Lamps (LED)

Healthy Dehumidification Mode

Sleep Mode Auto Control

Auto Air Control by the unit electronic control

Chaos Swing

Defrost control(Heating)

Hot-start Control (Heating)

• Room temperature sensor (THERMISTOR)

• Maintains the room temperature in accordance with the Setting Temp.

• Indoor fan is delayed for 5 seconds at the starting.

• Restarting is inhibited for approx. 3 minutes.

• High, Med, 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 pipe temperature will be
reached at 28°C(82°F).

• The fan is switched to low(Cooling), med(Heating) speed.

• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

• The fan is switched to intermittent or irregular operation.

• The fan speed is automatically switched from high to low speed.

• The louver can be set at the desired position or swing up
and down automatically.

--- Lights up in operation

--- Lights up in Sleep Mode

--- Lights up in Timer Mode

--- Lights up in Defrost Mode or Hot Start Mode (only Heating Model)

--- Lights up during compressor running (only Cooling Model)

OUT

DOOR

- 4 -

Healthy Dehumidification Operation Mode.

( )

Remote Controller

Operation ON/OFF

Reset

Operation Mode Selection

Temperature Setting

Timer Selection

Timer Setting

JET COOL

Timer Cancel

Sleep Operation

Airflow Direction Control

(Cooling

model only)

(Heating

model only)

TEMPERATURE

LOW HIGH

Cooling Operation Mode.( )

Heating Operation Mode.( )

Auto Operation Mode.( )

Fan Operation Mode

Horizontal Airflow Direction Control Button(Option)

Room, Temperature Display

Setting the Time or Timer

ON OFF

SET

CANCEL

Fan Speed Selection

(Low) (Med) (High) (CHAOS)

: (High:39°C Low:11°C)

: 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.

Cooling

Down to 18°C
Up to 30°C

Heating

Down to 16°C
Up to 30°C

- 5 -

Product Specifications(Cooling Only)

* Design and Specifications subject to change without prior notice for product improvement.

Items Unit HMC030KD1
Power Supply ø, V, Hz 230/208,60
Cooling Capacity BTU/h 28,000/27,000
Input W 3,600/3,450
Running Current A 16.0/16.5
COMP. Locked Rotor AMP. A 68
E.E.R BTU/hW 7.81/7.79
Air Circulation m3/min(cfm) 21(740)
Moisture Removal l/h(pts/hr) 3.7(7.8)
Noise Level Indoor, High dB(A) 49
(Sound Med dB(A) 46

Pressure, 1m) Low dB(A) 43

Outdoor, Max dB(A) 63

Features Temperature Control Thermistor

Air Deflection 4-way
Steps, Fan/Cool 3/3
Airflow Direction Control(up&down) Auto
Airflow Direction Control(left&right) Manual
Remocon Type Wireless LCD
Setting Temperature Range, Cooling Mode 64~86°F
Temperature Increment 2°F
Auto Operation(electronic control) Yes
Self Diagnosis Yes
Timer 24hr, On/Of
Sleep Operation Yes
Healthy Dehumidification Mode Yes

Restart Delay minutes 3
Refrigerant(R-22) Charge g(oz) 2550(89.9)
Power cord AWG #: P*mm

2

14:3*2.5
Fuse or breaker Capacity A 30A
Connecting Cable AWG #: P*mm

2

16:4*0.75
Connecting Tube Liquid Side mm(in) 6.35(1/4)
(ø. Socket Flare) Gas Side mm(in) 12.7(1/2)

Length, std m(ft) 7.62(25)
Additional Drain Hose(Outer Dia.) mm(in) 15.5(5/8)
Dimensions Indoor mm 1259*349*205
(WxHxD) in 49.6*13.7*8.1

Outdoor mm 870*800*320

in 34.3*31.5*12.6

Net Weight Indoor kg(lbs) 20

Outdoor kg(lbs) 71

- 6 -

Product Specifications(Cooling & Heating)

Items Unit HMH030KD1
Power Supply ø, V, Hz 1,230/208,60
Cooling Capacity BTU/h 28,000/27,000
Heating Capacity BTU/h 29,000/28,000
Input Cooling W 3,600/3,450

Heating W 3,750/3,550

Running Current Cooling A 16.0/16.5

Heating A 16.5/17.0
COMP. Locked Cooling A 68
Rotor AMP. Heating A 68
E.E.R BTU/hW 7.78/7.82
C.O.P 2.26/2.30
Air Circulation m3/min(cfm) 21(740)
Moisture Removal l/h(pts/hr) 3.7(7.8)
Noise Level Indoor, High dB(A) 49
(Sound Med dB(A) 46

Pressure, 1m) Low dB(A) 43

Outdoor, Max dB(A) 63
Features Temperature Control Thermistor

Air Deflection 4-way

Steps, Fan/Cool/Heat 3/3/3

Airflow Direction Control(up&down) Auto

Airflow Direction Control(left&right) Manual

Remocon Type Wireless LCD

Setting Temperature Range, Cooling Mode

64~86°F
Heating Mode 60~86°F
Temperature Increment 2°F
Auto Operation(electronic control) Yes
Self Diagnosis Yes
Timer 24hr, On/Off
Sleep Operation Yes
Healthy Dehumidification Mode Yes
Restart Delay minutes 3
Defrost Control Yes
Hot Start Yes

Refrigerant(R-22) Charge g(oz) 2550(89.9)
Power cord AWG #: P*mm

2

14:3*2.5

Fuse or breaker Capacity A 30A
Connecting Cable AWG #: P*mm

2

18:4*0.75
Connecting Tube Liquid Side mm(in) 9.52(3/8)
(ø. Socket Flare) Gas Side mm(in) 15.88(5/8)

Length, std m(ft) 7.62(25)
Additional Drain Hose(Outer Dia.) mm(in) 15.5(5/8)
Dimensions Indoor mm 1259*349*205
(WxHxD) in 49.6*13.7*8.1
Outdoor mm 770*540*245 870*800*320

in 34.3*31.5*12.6
Net Weight Indoor kg(lbs) 20
Outdoor kg(lbs) 33(72.8) 71

* Design and Specifications subject to change without prior notice for product improvement.

(1) Indoor Unit

- 7 -

Dimensions

W

H

Tubing hole cover

Tubing hole cover

Installation plate

D

W

mm(inch)

1,259(49.6)

H

mm(inch)

349(13.7)

D

mm(inch)

205(8.1)

Model

Dimension

30K SERIES

- 8 -

MODEL

DIM

- 8 -

W

L7 L6 L8 L9

D

L1

L2

L3

L10L11

L4L5

H

Gas side
3-way valve

Liquid side
3-way valve

W mm(in ch) 870(34.3)

H mm(in ch) 800(31.5)

D mm(in ch) 320(12.6)
L1 mm(in ch) 370(14.6)
L2 mm(in ch) 340(13.4)
L3 mm(in ch) 25(1.0)
L4 mm(in ch) 775(30.5)
L5 mm(in ch) 25(1.0)
L6 mm(in ch) 546(21.5)
L7 mm(in ch) 162(6.4)
L8 mm(in ch) 162(6.4)
L9 mm(in ch) 54(2.1)

L10 mm(in ch) 74.5(2.9)
L11 mm(in ch) 79(3.1)

30K SERIES

(2) Outdoor Unit

- 9 -

Refrigeration Cycle Diagram

INDOOR UNIT OUTDOOR UNIT

INDOOR UNIT OUTDOOR UNIT

HEAT
EXCHANGER
(EVAPORATOR)

HEAT
EXCHANGER
(EVAPORATOR)

HEAT
EXCHANGER
(CONDENSER)

HEAT
EXCHANGER
(CONDENSER)

COMPRESSOR

COMPRESSOR

ACCUMU
LATOR

Suction Line

Suction Line

3-WAY VALVE

Evaporator Line

Evaporator Line

3-WAY VALVE

CAPILLARY TUBE

CAPILLARY TUBE

CHECK VALVE

(Heating Model only)

COOLING
HEATING

REVERSING
VALVE
(Heating Model Only)

(1) Cooling Only Models

(2) Cooling & Heating Models

- 10 -

Pipe length and the elevation

* Capicity is based on standard length and maximum allowance length is the basis of

reliability.

* Oil trap should be installed per 5~7 meters(16.4~23.0ft).

CAUTION

Outdoor unit

Indoor unit

A

B

A

Oil trap

Outdoor unit

Indoor unit

B

In case more than 5m (16.4ft)

30k

5/8" 3/8" 7.5(25) 15(50) 30(100) 30(0.32)

(50Hz, 60Hz)

Pipe Size

Capacity

(Btu/h)

GAS LIQUID

Additional

Refrigerant

g/m(oz/ft)

Max.

Length

A m(ft)

Max.

Elevation

B m(ft)

Standard

Length

m(ft)

- 11 -

Wiring Diagram

(1) Indoor Unit (Cooling Only Models, & Heating Models)

MOT OR

SH-CAPA.

YL

PILLAR
TERMINAL

AUTO RESTART

FORCED OPERATION

CN-DISP

CN-L/R CN-U/D CN-TH

THERMISTOR

STEP

MOTOR

(UP/DOWN)

STEP

MOTOR

(L/R)

H.V.B ASM

LIMITS S/W

Negative ion

OPTION

STEP

MOTOR

(L/R)

CN-L/R

DISPLAY PCB ASM

3854A20065A

TO OUTDOOR UNIT

BL

3(L)

4(N) 5

BR

GN/YL

BL

RD RD

BR

GN/YL

BR

FUSE

AC250V/T2A

TRIAC

OR

BK

ZNR

CN-POWER

CN-MOTOR

WIRING DIAGRAM

- 12 -

(2) Outdoor Unit

• Cooling Only Models

• Heating Models

TO INDOOR

UNIT

POWER

INPUT

FMo

T/B

Comp(B)

OLP

CAPACITOR(B)

CAPACITOR(A)

C

C

S

S

R

R

Comp(A)

5

RD
BL
BR

BK

YL

YL BR

BL BK

RD

RD

BL

BK

BKBKOR

OR

GN/YL

BL
BR

FUSE

(250V,5A)

FUSE

(250V,5A)

FUSE(250V,3A)

CN-POWER

CN-FAN

CN-CON

CN-COMP

H

HCCF

CN-LEV

CN-TH2

PIPE-IN
TEMP-IN

COIL EXPANSION

RY-HI

RY-COMP(B)

RY-COMP(A)

3(L1)

2(L2)

4(L2)

1(L1)

MAIN
PCB ASM

3854A20153W

WIRING DIAGRAM

- 13 -

(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.

• 2min.; The reversing valve is delayed for 2 minutes to prevent the refrigerant-gas for abnormal noise when the

heating operation is OFF or switched to the other operation mode while compressor is off.
While compressor is running, it takes 3~5 seconds to switch.

2. Chaos Swing Mode

• By the Chaos Swing key input, the upper/lower vane automatically operates with the Chaos Swing or they are

fixed to the desired direction.

• While in Chaos Swing mode, the angles of cooling and heating cycle operations are different.

Operation Details

INTAKE AIR TEMP.

SETTING TEMP. +1°F
(Compressor ON)

SETTING TEMP. -1

°

F

(Compressor OFF)

Setting
fan speed

Setting
fan speed

More than
3 minutes

More than
3 minutes

Setting
fan speed

COMPRESSOR ON OFF ON OFF ON

INDOOR FAN SPEED Low Low

■ Protection of the indoor heat exchanger from frosting

• Compressor and outdoor fan stop when indoor pipe temperature is below 0°C(32°F) and restart at the pipe
temperature is above 7°C(45°F).

3. Cooling Operation Mode

• When selecting the Cooling( ) Mode Operation, the unit will operate according to the setting by the
remote control and the operation diagram is shown below.

CLOSED

OPEN

< Cooling Mode >

8°

CLOSED

OPEN

< Heating Mode >

8°

. Auto Operation (Electronic control mode)

• The operation procedure is shown below. (Cooling & Heating Model)

❋ If initial mode is decided, that mode is continued without the room temperature changing.

■ Auto Operation for Cooling

- 14 -

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

temperature

Operation Mode

Over below
70°F76

°

F

Soft Dry

below 70°F

Heating

Over 76°F

Cooling

~

INTAKE 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°F77°F
Over 76°F~below 78°F Intake air -1°C
Over 72°F~below 76°F Intake air -0.5°C
Over 68°F~below 72°F Intake air temperature

below 64°F64°F

Over 64°F~below 86°F Electronic control

below 64°F64°F

over 86°F86°F

Operation Condition

When Auto Operation
initial start

Controlled by
the electronic
control

In this mode,
when pressing
the vertical air
direction control
button, vertical
louver swings up
and down
automatically.

Fan Speed Air Direction Control

When pressing room
temperature setting
button during Auto
Operation

- 15 -

■ Auto Operation for Dehumidification(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

■ Auto Operation for Heating(only Heating Model)

- Compressor ON temperature; Setting temperature

- Compressor OFF temperature; Setting temperature +6°F

Intake-air temp. below 68°F Over 68°F~below 70°F over 86°F

Setting temp. 68°F Intake air temperature +1°F86°F

■ Vertical louver auto operation

: During Auto Operation, pressing the chaos swing button makes the horizon­tal louvers swing up and down automatically.
If you want to stop auto-swing, press chaos swing button again.

- 16 -

5. Healthy Dehumidification

• When the dehumidification operation input by the remote control is received, the intake air temperature is
detected and the setting temp is automatically set according to the intake air temperature.

26°C ≤ Intake Air Temp ➲ 25°C
24°C ≤ Intake Intake Air Temp<26°C ➲ Intake Air Temp-1°C
18°C ≤ Intake Intake Air Temp<24°C ➲ Intake Air Temp-0.5°C
Intake Air Temp<18°C ➲ 18°C

• 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 dehumidification

operation and 4-min compressor off repeat.
Compressor ON Temp. ➲ Setting Temp+0.5°C
Compressor OFF Temp. ➲ Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

- 17 -

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)

Selecting
fan speed

Selecting
fan speed

A

B

A

minimum

10sec.

minimum

1 min.

minimum

10sec.

COMPRESSOR ON OFF ON OFF

• A point; While the indoor pipe 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 38°C(100°F), fan operates at selected fan speed.

INDOOR FAN SPEED

Low

OFF

Low Low OFF

OFF OFFLOW

ON

Selecting
fan speed

INDOOR PIPE

TEMP.

82°F

78°F

1min

INDOOR FAN SPEED

COMPRESSOR

■ Hot-Start Control

• The indoor fan stops until the indoor pipe temperature will be reached at 82°F.

• During heating operation, if indoor pipe temperature falls below 78°F fan stops.

• The operation diagram is shown below.

- 18 -

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

• The setting temperature will be automatically raised by 2°F 30 minutes later and by 4

°

F 1 hour later.

• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

■ Heating Mode with the Sleep Mode(only Heating Model)

• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

INTAKE AIR TEMP.

SETTING TEMP. +1°F
(Compressor ON)

SETTING TEMP. -1°F
(Compressor OFF)

30 minutes

30 minutes

More than

3 minutes

2°F

2°F

More than

3 minutes

COMPRESSOR ON OFF ON OFF ON

INDOOR FAN SPEED Low Low Low Low Low

SETTING TEMP. +6

°

F

(Compressor OFF)

SETTING TEMP.
(Compressor ON)

COMPRESSOR ON OFF ON OFF ON OFF

INDOOR FAN SPEED Med Low or OFF Med Low or OFF Med Low or OFF

INTAKE AIR TEMP.

More than
3 minutes

More than
3 minutes

More than

3 minutes

- 19 -

8. Forced Operation

To operate the appliance by force in case that the remote controller is
lost, the forced operation button is on the main unit of the appliance to
operate the appliance in the standard conditions.

• Press the forced operation button, the forced operation is carried out.

• Press the forced operation button once again to stop operation.

In case the power comes on again after power failure on the Forced
Operation position, the operating conditions are automatically set as fol­lows:
During Forced Operation, the initial mode continues.

9. AUTO RESTART

In case the power comes on again after a power failure, Auto Restarting
Operation is the function to operate procedures automatically to the pre­vious operating conditions.

If you want to use this operation. The autorestart button is on the main
unit of the appliance in the standard condition.

• press the auto restart button, to make this function active.

• If you do not want to use this operation, free the auto restart button

once again.

If you do not want to use this operation, move the Slide Switch to the
Remote Control position.

Cooling Heat pump Model

Model

Room Temp. ≥ 24°C(76°F)

21°C(70°F) ≤ Room Temp. < 24°C(76°F)

Room Temp. < 21°C(70°F)

Operating mode Cooling Cooling Healthy Dehumidification Heating

Indoor FAN Speed

High High

Healthy Dehumidification Rule

High

Setting Temperature

22°C(72°F) 22°C(72°F) 23°C(74°F) 24°C(76°F)

FORCED

FORCED

OPERATION

OPERATION

FORCED

OPERATION

AUTO

RESTART

AUTO

RESTART

FORCED

OPERATION

- 20 -

Display Function

Self-diagnosis Function

Signal Receptor

Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.)

Operation Indication Lamps

On/Off : Lights up during the system operation.
Timer or Sleep Mode : Lights up during Timer operation or Sleep mode.
Defrost Mode : Lights up during Defrost Mode or Hot

Start operation. (Heat pump model only)

Outdoor unit operation : Lights up during outdoor unit operation. (Cooling model only)
Auto Restart Mode : Lights up during if Restart Button is pressed.
Auto Restart Button : In failure of electric power, if the button is pressed the unit runs as previous

setting operation when power returns.

Forced Operation Button

: Operation starts, when this button is pressed and stops when you press the

button again.

3sec 3sec 3sec

(once)

3sec 3sec

(twice)

3sec

(5times)

Error

Code

1

2

5

Error LED

(Indoor body operation LED)

Error contents

• Indoor room temperature
thermistor open/short

• Indoor pipe temperature
thermistor open/short.

• Outdoor pipe temperature
thermistor open/short.

• Poor communication.

• Indoor TH assy check

• Outdoor TH assy check

• Communication line/circuit

check

SVC check point