Panasonic CSE9RKUAW User Manual

Order No: PAPAMY1503085AE

/

TEMP

O

S

O
123

C

Indoor Unit

CS-ME5RKUA
CS-ME7RKUA

FAN

AUTO

SPEED

HEAT

AIR

COOL

SWING
DRY
FAN

AUTO

OFF/ON

FF/ON

ECONAVI

COMFORT

MODE

TEMP

AIRSWING

POWERFUL/

FANSPEED

QUIET

TIMER

TIMER

ET

ON

SET

123

CANCELONOFF

CANCEL

FF

AC RC

SETCHECK CLOCK RESET

HECK

Destination

USA

Canada

Please file and use this manual together with the service manual for Model No. CU-2E18NBU, CU-5E36QBU and CU-3E19RBU
CU-4E24RBU, Order No. PHAAM1111120A1, PAPAMY1312037CE and PAPAMY1505100CE.

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the products dealt with in this service information by anyone else could result in serious injury or death.

In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.

PRECAUTION OF LOW TEMPERATURE

© Panasonic Corporation 2015.

TABLE OF CONTENTS

1. Safety Precautions ............................................. 3

2. Specification ....................................................... 5

3. Features ............................................................... 9

4. Location of Controls and Components .......... 10

4.1 Indoor Unit .................................................. 10

4.2 Outdoor Unit ............................................... 10

4.3 Remote Control .......................................... 10

5. Dimensions ....................................................... 11

5.1 Indoor Unit .................................................. 11

6. Wiring Connection Diagram ............................ 12

6.1 Indoor Unit .................................................. 12

7. Electronic Circuit Diagram .............................. 13

7.1 Indoor Unit .................................................. 13

8. Printed Circuit Board ....................................... 14

8.1 Indoor Unit .................................................. 14

9. Installation Instruction ..................................... 16

9.1 Select the Best Location ............................. 16

9.2 Indoor Unit .................................................. 17

14. Exploded View and Replacement Parts

List .....................................................................71

14.1 Indoor Unit ..................................................71

10. Operation Control ............................................. 21

10.1 Basic Function ............................................ 21

10.2 Cooling operation ....................................... 21

10.3 Soft Dry Operation ...................................... 21

10.4 Heating Operation ...................................... 21

10.5 Automatic Operation ................................... 22

10.6 Indoor Fan Speed Control .......................... 22

10.7 Indoor Fan Motor Operation ....................... 23

10.8 Outdoor Fan Motor Operation .................... 24

10.9 Airflow Direction .......................................... 24

10.10 Quiet Operation (Cooling Mode/Cooling

Area of Dry Mode) ...................................... 25

10.11 Quiet Operation (Heating) .......................... 25

10.12 Powerful Mode Operation ........................... 25

10.13 Timer Control .............................................. 26

10.14 Auto Restart Control ................................... 26

10.15 Indication Panel .......................................... 26

10.16 ECONAVI and AUTO COMFORT

Operation .................................................... 27

11. Servicing Mode ................................................. 30

11.1 Auto Off/On Button ..................................... 30

11.2 Remote Control Button ............................... 31

12. Troubleshooting Guide .................................... 32

12.1 Refrigeration Cycle System ........................ 32

12.2 Breakdown Self Diagnosis Function ........... 34

12.3 Error Code Table ........................................ 35

12.4 Self-diagnosis Method ................................ 37

13. Disassembly and Assembly Instructions ...... 67

13.1 Indoor Electronic Controllers,
Cross Flow Fan and Indoor Fan Motor

Removal Procedures .................................. 67

2

1. Safety Precautions

 Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
 Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the

power plug and main circuit for the model installed.

 The caution items stated here must be followed because these important contents are related to safety. The

meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction
will cause harm or damage, and the seriousness is classified by the following indications.

WARNING

CAUTION

 The items to be followed are classified by the symbols:

 Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation,

care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for
future reference.

Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit on veranda of a high rise building, child may

1.
climb up to outdoor unit and cross over the handrail causing an accident.

Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single outlet with

2.
other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.

3. Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen.

4. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.

5. Do not sit or step on the unit, you may fall down accidentally.

6. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.

When installing or relocating air conditioner, do not let any substance other than the specified refrigerant, eg. air etc mix into

7.

refrigeration cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury
etc.

8. Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc.

For R410A model, use piping, flare nut and tools which is specified for R410A refrigerant. Using of existing (R22) piping, flare nut and tools
may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury.

9.
Thickness or copper pipes used with R410A must be more than 1/32" (0.8 mm). Never use copper pipes thinner than 1/32" (0.8 mm).

It is desirable that the amount of residual oil is less than 0.0008 oz/ft (40 mg/10 m).
Engage authorized dealer or specialist for installation. If installation done by the user is incorrect, it will cause water leakage, electrical

10.
shock or fire.

11. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire.

Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical

12.
shock.

Install at a strong and firm location which is able to withstand weight of the set. If the strength is not enough or installation is not properly

13.
done, the set will drop and cause injury.

For installation work, follow all electrical, building, plumbing, local codes, regulations and these installation instructions. If electrical circuit

14.
capacity is not enough or a defect is found in electrical work, it will cause electrical shock or fire.

Do not use spliced wires for indoor / outdoor connection cable. Use the specified indoor / outdoor connection cable, refer to instruction

15.

INDOOR UNIT ELECTRICAL WIRING and connect tightly for indoor connection. Clamp the cable so that no external force will have impact
on the terminal. If connection or fixing is not perfect, it will cause heat-up or fi re at the connection.

Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause

16.
fire or electrical shock.

This equipment must installed with an Earth Leakage Circuit Breaker (ELCB) or Ground Fault Current Interrupter (GFCI) or Appliance

17.

Leakage Current Interrupter (ALCI) that has been certified by an NRTL Certified Testing Agency and that is suitable for the voltages and
amperages involved. Otherwise, if may cause electrical shock and fire in case of equipment breakdown.

During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing refrigeration

18.

piping and valves at opened position will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury
etc.

During pump down operation, stop the compressor before removing the refrigeration piping. Removal of refrigeration piping while

19.

compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.

Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may

20.
break and cause refrigerant gas leakage.

This indication shows the possibility of causing death or serious injury

This indication shows the possibility of causing injury or damage to properties.

This symbol denotes item that is PROHIBITED from doing.

WARNING

3

After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant contacts with

21.
fire.

22. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire.

This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and telephone.

23.
Otherwise, it may cause electrical shock in case of equipment breakdown or insulation breakdown.

WARNING

CAUTION

Do not install the unit in a place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of

1.
the unit, it may cause fire.

Do not release refrigerant during piping work for installation, re-installation and during repairing refrigeration parts. Take care of the

2.
liquid refrigerant, it may cause frostbite.

3. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

4. Do not touch the sharp aluminium fin, sharp parts may cause injury.

Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the

5.
furniture.

6. Select an installation location which is easy for maintenance.

Installation work.

7.
It may need two people to carry out the installation work.

4

2. Specification

Model

Performance Test Condition AHRI AHRI

Power Supply

Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max.

Capacity

Running Current A - 2.3 - - 2.0 - - 2.8 - - 2.5 -

Input Power W 250 400 640 250 400 640 340 500 810 340 500 810

Cooling

Heating

Indoor Fan

Speed

Moisture Removal L/h (Pt/h) 0.3 (0.6) 0.4 (0.8)

Indoor

Airflow

Dimension

Weight Net (I/D) kg (lb) 9 (20) 9 (20)

Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8)

Drain Hose

EER

Indoor Noise (H / L)

Capacity

Running Current A - 3.4 - - 3.0 - - 4.1 - - 3.7 -

Input Power W 300 600 960 300 600 960 300 740 1.23k 300 740 1.23k

COP

Indoor Noise (H / L)

Type Cross-flow fan Cross-flow fan

Material ASG20K1 ASG20K1

Motor Type DC (8 poles) DC (8 poles)

Input Power W 47.0 - 47.0 47.0 - 47.0

Output Power W 40 40

QLo rpm

Lo rpm

Me rpm

Hi rpm

SHi rpm

QLo m

Lo m3/min (ft3/min)

Me m3/min (ft3/min)

Hi m3/min (ft3/min)

SHi m3/min (ft3/min)

Height (I/D) mm (inch) 290 (11-7/16) 290 (11-7/16)

Width (I/D) mm (inch) 870 (34-9/32) 870 (34-9/32)

Depth (I/D) mm (inch) 214 (8-7/16) 214 (8-7/16)

Inner Diameter mm (inch) 16.7 (5/8) 16.7 (5/8)

Length mm (inch) 650 (25-5/8) 650 (25-5/8)

Indoor CS-ME5RKUA CS-ME7RKUA

Outdoor CU-3E19RBU CU-3E19RBU

Phase, Hz Single, 60 Single, 60

V 208 230 208 230

kW 1.30 1.62 2.30 1.30 1.62 2.30 1.80 2.01 2.90 1.80 2.01 2.90

BTU/h 4400 5500 7800 4400 5500 7800 6100 6900 9900 6100 6900 9900

W/W 5.20 4.05 3.59 5.20 4.05 5.20 5.29 4.02 3.58 5.29 4.02 3.58

Btu/hW 17.60 13.75 12.20 17.60 13.75 12.20 17.95 13.80 12.20 17.95 13.80 12.20

dB-A 38 / 25 38 / 25 39 / 25 39 / 25

Power Level dB 54 / - 54 / - 55 / - 55 / -

kW 1.20 2.61 3.20 1.20 2.61 3.20 1.20 3.21 4.10 1.20 3.21 4.10

BTU/h 4100 8900 10900 4100 8900 10900 4100 10900 14000 4100 10900 14000

W/W 4.00 4.35 3.33 4.00 4.35 3.33 4.00 4.34 3.33 4.00 4.34 3.33

Btu/hW 13.65 14.85 11.35 13.65 14.85 11.35 13.65 14.75 11.40 13.65 14.75 11.40

dB-A 40 / 29 40 / 29 41 / 29 41 / 29

Power Level dB 56 / - 56 / - 57 / - 57 / -

3

/min (ft3/min)

Cooling : 570
Heating : 690
Cooling : 660
Heating : 780
Cooling : 820
Heating : 950

Cooling : 990
Heating : 1120
Cooling : 1080
Heating : 1210

Cooling : 6.00 (212)
Heating : 6.88 (243)
Cooling : 7.00 (247)
Heating : 7.89 (279)
Cooling : 8.80 (311)

Heating : 9.79 (346)
Cooling : 10.70 (380)
Heating : 11.70 (415)
Cooling : 11.71 (413)
Heating : 12.70 (448)

Cooling : 570
Heating : 690
Cooling : 660
Heating : 780
Cooling : 840

Heating : 960
Cooling : 1020
Heating : 1150
Cooling : 1100
Heating : 1240

Cooling : 6.06 (214)
Heating : 6.95 (245)
Cooling : 7.06 (249)
Heating : 7.96 (281)
Cooling : 9.08 (321)

Heating : 9.97 (352)
Cooling : 11.10 (390)
Heating : 12.10 (425)
Cooling : 12.10 (425)
Heating : 13.11 (463)

5

Model

Fin Material Aluminium (Pre Coat) Aluminium (Pre Coat)

Indoor Heat

Exchanger

Air Filter

Indoor Operation Range

(Cooling) (°F / °C)

Indoor Operation Range

(Heating) (°F / °C)

1. Cooling capacities are based on indoor temperature of 27°C DRY BULB (80.6°F DRY BULB), 19.0°C WET BULB (66°F WET BULB) and
outdoor air temperature of 35°C DRY BULB (95°F DRY BULB), 24°C WET BULB (75.2°F WET BULB)

2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F
Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)

3. Specifications are subjected to change without prior notice for further improvement.

Fin Type Slit Fin Slit Fin

Row x Stage x FPI 2 x 15 x 21 2 x 15 x 21

Size (W x H x L) inch 1 x 12-13/32 x 24 1 x 12-13/32 x 24

Material Polypropelene Polypropelene

Type One-touch One-touch

DRY BULB WET BULB DRY BULB WET BULB

Indoor CS-ME5RKUA CS-ME7RKUA

Outdoor CU-3E19RBU CU-3E19RBU

Maximum 89.6 / 32 73.4 / 23 89.6 / 32 73.4 / 23

Minimum 60.8 / 16 51.8 / 11 60.8 / 16 51.8 / 11

Maximum 86.0 / 30 - / - 86.0 / 30 - / -

Minimum 60.8 / 16 - / - 60.8 / 16 - / -

6

Model

Performance Test Condition AHRI AHRI

Power Supply

Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max.

Capacity

Running Current A - 2.8 - - 2.5 - - 2.8 - - 2.5 -

Input Power W 340 500 810 340 500 810 340 500 810 340 500 810

Cooling

Heating

Indoor Fan

Speed

Moisture Removal L/h (Pt/h) 0.4 (0.8) 0.4 (0.8)

Indoor

Airflow

Dimension

Weight Net (I/D) kg (lb) 9 (20) 9 (20)

Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8)

Drain Hose

EER

Indoor Noise (H / L)

Capacity

Running Current A - 4.1 - - 3.7 - - 4.1 - - 3.27 -

Input Power W 300 740 1.23k 300 740 1.23k 300 740 1.23k 300 740 1.23k

COP

Indoor Noise (H / L)

Type Cross-flow fan Cross-flow fan

Material ASG20K1 ASG20K1

Motor Type DC (8 poles) DC (8 poles)

Input Power W 47.0 - 47.0 47.0 - 47.0

Output Power W 40 40

QLo rpm

Lo rpm

Me rpm

Hi rpm

SHi rpm

QLo m

Lo m3/min (ft3/min)

Me m3/min (ft3/min)

Hi m3/min (ft3/min)

SHi m3/min (ft3/min)

Height (I/D) mm (inch) 290 (11-7/16) 290 (11-7/16)

Width (I/D) mm (inch) 870 (34-9/32) 870 (34-9/32)

Depth (I/D) mm (inch) 214 (8-7/16) 214 (8-7/16)

Inner Diameter mm (inch) 16.7 (5/8) 16.7 (5/8)

Length mm (inch) 650 (25-5/8) 650 (25-5/8)

Indoor CS-ME7RKUA CS-ME7RKUA

Outdoor CU-2E18NBU CU-5E36QBU

Phase, Hz Single, 60 Single, 60

V 208 230 208 230

kW 1.80 2.01 2.90 1.80 2.01 2.90 1.80 2.01 2.90 1.80 2.01 2.90

BTU/h 6100 6900 9900 6100 6900 4900 6100 6900 9900 6100 6900 9900

W/W 5.29 4.02 3.58 5.29 4.02 3.58 5.29 4.02 3.58 5.29 4.02 3.58

Btu/hW 17.95 13.80 12.20 17.95 13.80 12.20 17.95 13.80 12.20 17.95 13.80 12.20

dB-A 39 / 25 39 / 25 39 / 25 39 / 25

Power Level dB 55 / - 55 / - 55 / - 55 / -

kW 1.20 3.21 4.10 1.20 3.21 4.10 1.20 3.21 4.10 1.20 3.21 4.10

BTU/h 4100 10900 14000 4100 10900 14000 4100 10900 14000 4100 10900 14000

W/W 4.00 4.34 3.33 4.00 4.34 3.33 4.00 4.34 3.33 4.00 4.34 3.33

Btu/hW 13.65 14.75 11.40 13.65 14.75 11.40 13.65 14.75 11.40 13.65 14.75 11.40

dB-A 41 / 29 41 / 29 41 / 29 41 / 29

Power Level dB 57 / - 57 / - 57 / - 57 / -

3

/min (ft3/min)

Cooling : 570
Heating : 690
Cooling : 660
Heating : 780
Cooling : 840

Heating : 960
Cooling : 1020
Heating : 1150
Cooling : 1100
Heating : 1240

Cooling : 6.06 (214)
Heating : 6.95 (245)
Cooling : 7.06 (249)
Heating : 7.96 (281)
Cooling : 9.08 (321)

Heating : 9.97 (352)
Cooling : 11.10 (390)
Heating : 12.10 (425)
Cooling : 12.10 (425)
Heating : 13.11 (463)

Cooling : 570
Heating : 690
Cooling : 660
Heating : 780
Cooling : 840

Heating : 960
Cooling : 1020
Heating : 1150
Cooling : 1100
Heating : 1240

Cooling : 6.06 (214)
Heating : 6.95 (245)
Cooling : 7.06 (249)
Heating : 7.96 (281)
Cooling : 9.08 (321)

Heating : 9.97 (352)
Cooling : 11.10 (390)
Heating : 12.10 (425)
Cooling : 12.10 (425)
Heating : 13.11 (463)

7

Model

Fin Material Aluminium (Pre Coat) Aluminium (Pre Coat)

Indoor Heat

Exchanger

Air Filter

Indoor Operation Range

(Cooling) (°F / °C)

Indoor Operation Range

(Heating) (°F / °C)

1. Cooling capacities are based on indoor temperature of 27°C DRY BULB (80.6°F DRY BULB), 19.0°C WET BULB (66°F WET BULB) and
outdoor air temperature of 35°C DRY BULB (95°F DRY BULB), 24°C WET BULB (75.2°F WET BULB)

2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor air temperature of 7°C Dry Bulb (44.6°F
Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb)

3. Specifications are subjected to change without prior notice for further improvement.

Fin Type Slit Fin Slit Fin

Row x Stage x FPI 2 x 15 x 21 2 x 15 x 21

Size (W x H x L) inch 1 x 12-13/32 x 24 1 x 12-13/32 x 24

Material Polypropelene Polypropelene

Type One-touch One-touch

DRY BULB WET BULB DRY BULB WET BULB

Indoor CS-ME7RKUA CS-ME7RKUA

Outdoor CU-2E18NBU CU-5E36QBU

Maximum 89.6 / 32 73.4 / 23 89.6 / 32 73.4 / 23

Minimum 60.8 / 16 51.8 / 11 60.8 / 16 51.8 / 11

Maximum 86.0 / 30 - / - 86.0 / 30 - / -

Minimum 60.8 / 16 - / - 60.8 / 16 - / -

8

3. Features

 Inverter Technology

o Wider output power range
o Energy saving
o Quick Cooling
o More precise temperature control

 Environment Protection

o Non-ozone depletion substances refrigerant (R410A)

 Long Installation Piping

o Long piping up to 82 feet (25 meters) for 1 room, 164 feet (50 meters) for total room

 Easy to use remote control

 Quality Improvement

o Random auto restart after power failure for safety restart operation
o Gas leakage protection
o Prevent compressor reverse cycle
o Inner protector to protect Compressor
o Noise prevention during soft dry operation

 Operation Improvement

o Quiet mode to reduce the indoor unit operating sound
o Powerful mode to reach the desired room temperature quickly

 Serviceability Improvement

o Breakdown Self Diagnosis function

9

4. Location of Controls and Components

Alu

miniu

mFin

A

TEMP

O

O

N

TIMER

S

CANCEL

O

N

O

2

CHEC

K

4.1 Indoor Unit

Front Panel

Air Filters

Human activity

sensor

Horizontal Airflow
Direction Louver

• Manually adjustable.

4.2 Outdoor Unit

ir inlet (side)

Air inlet (rear)

R
E

W
O
P

R
E
M

I
T

I

V

A

N

O
C
E

T

R
O
F

M

O

C

O
T
U

A

L
U

F

R

E

W

O
P

T
E

I

U

Q

Remote control
receiver and Indicator

Vertical Airflow
Direction Louver

• Do not adjust by hand.

Auto OFF/ON button

Air Purifying Filter

INDICATOR

POWER

TIMER

ECONAVI

AUTO COMFO RT

POWERFUL

QUIET

(Green)
(Orange)
(Green)
(Green)
(Orange)
(Orange)

4.3 Remote Control

Remote control

Econavi operation

Operation mode

Temperature setting

Powerful/Sleep mode

display

operation

Check

AUTO

HEAT

COOL

DRY

FAN

OFF/ON

FF/

ECONAVI

MODE

TEMP

POWERFUL/

FAN SPEED

QUIET

TIMER

ON

1

2

OFF

FF

SET CHECK CLOCK RESET

AUTO

COMFORT

AIR SWING

CANCEL

AC

FAN
SPEED

AIR
SWING

ET

SET

3

RC

Air outlet

OFF/ON

Auto comfort operation

Vertical airflow
direction selection

Fan speed selection

Timer setting

Clock setting

10

5. Dimensions

/

TEM

O

S
CANC

O
OFF1

3

CHEC

K

5.1 Indoor Unit

<Side View> <Side View>

Air intake
direction

<Top View>

<Front View>

(8-7/16)

8-7/16

Left piping
hole

Air outlet
direction

1/32~1/16

<Bottom View>

4-29/32

<Rear View>

16-1/8

34-9/32

Gas s ide

Liquid si de

2-11/322-11/32

(1-5/8~2-13/32)

1/32~1/16

4-17/32

11- 7/ 16

Right piping
hole

Remote control

1-7/8

FAN

AUTO

SPEED

HEAT

AIR

COOL

SWING
DRY
FAN

AUTO

OFF/ON

FF/ON

ECONAVI

COMFORT

MODE

TEMP

P

AIRSWING

POWERFUL/

QUIET

FANSPEED

5-1/4

TIMER

TIMER

ET

N

SET

3

2

12

EL

CANCELONOFF

AC RC

SETC HECKCLOC K RESET

Remote control holder

2-3/8

2

2-13/32

1-49/64

7/8

Installation
plate

Indoor unit
external
dimensions
line

Relative position between the indoor unit and the installation plate <Front View>

29-29/64

1717-9/32

5-1/16

Right
piping
hole

Left
piping
hole

5-1/16

3-3/4

1-11/16

9-17/32 9-17/32

11

5/8

10-3/8

Unit: inch

6. Wiring Connection Diagram

6.1 Indoor Unit

TERMINAL

TO
OUTDOOR
UNIT

BOARD

TEMP.
FUSE
102°C
(3A)

GROUNDING
TERMINAL

EVAPORATOR

1

2

3

Y/G

BL

W

R

AC306 (BLK)

AC303 (WHT)

AC304 (RED)

G301 (GRN)

G

FUSE301

T3.15A L250V

COMMUNICATION

CIRCUIT

NOISE FILTER

RECTIFICATION

AUTO SW

(SW01)

CIRCUIT

CIRCUIT

REMARKS

4

(WHT)

1

CN–RMT

5

(WHT)

CN–CNT

1

1

(WHT)

CN–STM1

5

6

(RED)

CN–TH

1

BR

R
O
Y
P

t

t

t

1

5

PIPING TEMP. SENSOR 2
(THERMISTOR)

PIPING TEMP. SENSOR 1
(THERMISTOR)

SUCTION TEM P. SENSOR
(THERMISTOR)

B : BLUE P : PINK
BR : BROWN O : ORANGE
BL : BLAC K Y : YELLOW
W : WHITE G : GREEN
R : RED
Y/G : YELLOW/GREEN

UP DOWN

M

LOUVER MOTOR

FAN MOTOR

M

Y

7

B

6

W

5

BL

4

R

1

CONTROLLER

CN–FM (WHT)

(MAIN)

CN–DISP (YLW)

1

WWWWWWWWW

11

CN–DISP (WHT)

ELECTRONIC CONTROLLER

(DISPLAY & RECEIVER)

REMOTE CONTROLLER

12

1

ELECTRONIC

W

3

1

(WHT)

CN–MSENS

1

W
W

W

1

(WHT)

CN–MSENS

8

CN-SENS1

(COMPARATOR)

ELECTRONIC CONTROLLER

1

3

CN–SENS1

ELECTRONIC
CONTROLLER

(YLW)

(ECO SENSOR)

W
W

(WHT)

3

12

7. Electronic Circuit Diagram

TEMP

OFF/O

N

TIMER

S

CANCEL

O

N

O

2

3

C

T

7.1 Indoor Unit

O
OUTDOOR
UNIT

TERMINAL
BOARD

1
2
3

TEMP.
FUSE
102°C
(3A)

GROUNDING
TERMINAL

Y/G

EVAPORATOR

FAN MOTOR

M

AC306 (BLK)

BL

R

AC303 (WHT)

W

FUSE301

T3.15A L250V

AC304 (RED)

G301 (GRN)

G

COMMUNICATION

7
6
5

4

1

CN–FM ( WHT)

ELECTRONIC

CONTROLLER

(MAIN)

Y
B
W

BL

R

CIRCUIT

AUTO SW

(SW01)

NOISE FILTER

CIRCUIT

RECTIFICATION

CIRCUIT

R62

15.0k

C52

1000p

5V

R90

10k

C25

1u

R82
10k

1000p

C51

20.0k

R61

*R54

270

*C56 *C57

12V

VCC

9

1

16

IC03

2

15

IC03

3

14

IC03

4

13

IC03

5

12

IC03

6

11

IC03

7

10

IC03

GND

8

C27

*R63

1u

5V

*R37

10k

*C45

5V

0.1u

4

1

*C49

CN–RMT

NONE

(WHT)

5V12V

*L5*L6

5

1

CN–CNT

(WHT)

CN–STM1

12V

(WHT)

1

BR

1

R
O
Y
P

5

5V

6

R46R47

1

CN–TH

(RED)

*C28

PIPING TEMP. SENSOR 2

t

(THERMISTOR)
PIPING TEMP. SENSOR 1

t

(THERMISTOR)
SUCTION TEMP. SENSOR

t

(THERMISTOR)

M

5

UP DOWN
LOUVER MOTOR

ELECTRONIC CONTROLLER

(DISPLAY & RECEIVER)

IC201

R213

R208

GND-A

45

JP201R210

JP200R211

JP203R212

JP204

Vout

Vcc

GND

GNDGND

+

C201

47u

c

e

R209

1
2
3

C202

0.01u

R218

0

SEN201

PCB3

LED205

2

POWERFUL/QUIET

(orange/green)

5V_

47

3

1

CN–DISP ( YLW)

CN–DISP (WHT)

POWER

(green)

LED201

TIMER

(orange)

LED202

ECO NAVI

(green)

LED203

NANOE G/AUTO COMF

(green)

LED204

R207

620

R206

2.7k

5V

R89

1

WWWWWWWW W

11

BZ201

BZ

R201 470

R202

2k

R203

27k

R204

820

R216

0

b

4.7k

R217

0

b

4.7k

Q201

10k

Q202

10k

5V

*R74

*R75

*C41

C3

0.1u

CN–MSENS

(WHT)

3

W
W
W

1

12

1

12V

R215

0

5V_

e

c

5V_

e

c

REMOTE CONTR OLLER

DRY

FAN

OFF/ON

ECONAVI

MODE

TEMP

FAN SPEED

QUIET

TIMER

ON

12

FF

OFF

SET CHECK CLOCK RESET

HECK

COMFORT

AIRSWING

CANCEL

AC

FAN
SPEED

AIR
SWING

AUTO

ET

SET

3

RC

AUTO

HEAT

COOL

POWERFUL/

S

M

–

S

E

N

N

C

5V_3

)

H

(

T

W

1

8

ELECTRONIC CONTROLLER

(COMPARATOR)

R401

R402

R403

5V_3

C403

6

7

IC401

5

2

8

1

IC401

3

4

W

1

1

ELECTRONIC

W
W

3

CN–SENS1

CONTROLLER

(YLW)

(ECO SENSOR)

(WHT)

3

CN-SENS1

13

8. Printed Circuit Board

JP1(Ran

dom

R

e

e

nable/d

e

)

8.1 Indoor Unit

8.1.1 Main Printed Circuit Board

CN-FM

CN-CNT
CN-RMT

Auto

start

isabl

8.1.2 Indicator Printed Circuit Board

CN-STM1

CN-MSENS

CN-DISP

CN-TH

CN-DISP

14

8.1.3 Comparator Printed Circuit Board

CN-SENS1

CN-SENS2

CN-MSENS

15

9. Installation Instruction

9.1 Select the Best Location

9.1.1 Indoor Unit

 Do not install the unit in excessive oil fume area

such as kitchen, workshop and etc.

 There should not be any heat source or steam

near the unit.

 There should not be any obstacles blocking the air

circulation.

 A place where air circulation in the room is good.
 A place where drainage can be easily done.
 A place where noise prevention is taken into

consideration.

 Do not install the unit near the door way.
 Ensure the spaces indicated by arrows from the

wall, ceiling, fence or other obstacles.

 Mount with the lowest moving parts at least 8 ft

(2.4 mm) above floor or grade level.

9.1.2 Indoor/Outdoor Unit Installation
Diagram

Piping dir ection

Right
Rear

Right
bottom

31

1

/

32

"

(50 mm) or

more

Insulation of piping connections

• C arry out insulation after
checking for gas leaks and
secure wit h vinyl tape.

Attaching the remote control holder to the wall

Remote control holder fixing screws

Remote
control

3

It is advisable to avoid more than 2 blockage
directions. For better ventilation & multiple­outdoor installation,please consult authorized
dealer/specialist.

• T his illustration is for explanation purposes only.
The indoor unit will actually face a different way.

• R espective outdoor unit installation procedure shall
refer to instruction manual provided in the outdoor
unit packaging.

(Front side)

Left
Rear

Left bottom

(Left and right are identical)

Floor / Grade level

Remote control ho lder

Left

9

Vinyl tape

6

Attention no t to bend
up drain hose

)

e

"

r

m

6

o

1

m

/

m

5

r

6

2

o

(

5

Installation par ts you
should purchase ()

Installation p late 1

Bushing-Sleeve (

Sleeve (

Putty (

)
m

e
r

4

o

.
2

m

(

r

t

f

o

8

(Gum Type Sealer)

Bendthepipeas
closely o n the wall as
possible, but be careful
that it doesn’t break.

Vinyl tape (wide) (

• Apply after carrying
out a drainage test.

• To carry out the
drainage test,
remove the air filters
and pour water into
the heat exchanger.

Saddle (





)



)



)

)



)

16

9.2 Indoor Unit

W

9.2.1 How to Fix Installation Plate

The mounting wall shall be strong and solid enough to prevent it from the vibration.

Measuring

T ape

Wal l

917/32"

(241.5 mm )

51/16"

(128 mm)

More than 1

PIPE HOL E CENTER

DISTANCE

TO PIPE

HOLE
CENTER
128 mm

2

screw

51/16"

(128 mm)

Installation plate

For best strength of
INDOOR unit installation,
it is highly recommended
to locate “
as shown.

all

More

than 2

1

”at5position

DISTANCETO
PIPE HOLE
CENTER 128 mm

More than 1

PIPE HOLE

CENTER

917/32"

(241.5 mm )

51/16"

(128 mm)

Wal l

Dimension

179/32"

(439 mm)

17"

(432 mm)

111/16"

(43 mm)

ME7***

Model

123 456

or

199/32"

(490 mm)

37/32"

(82 mm)

The center of installation plate should be at more than  at right and left of the wall.
The distance from installation plate edge to ceiling should more than .
From installation plate center to unit’s left side is .
From installation plate center to unit’s right side is .

B : For left side piping, piping connection for liquid should be about  from this line.

○

: For left side piping, piping connection for gas should be about  from this line.

1 Mount the installation plate on the wall with 5 screws or more (at least 5 screws).

(If mounting the unit on the concrete wall, consider using anchor bolts.)
o Always mount the installation plate horizontally by aligning the marking-off line with the thread and using

a level gauge.

2 Drill the piping plate hole with ø2 3/4" (ø70 mm) hole-core drill.

o Line according to the left and right side of the installation plate. The meeting point of the extended line is

the center of the hole. Another method is by putting measuring tape at position as shown in the diagram
above. The hole center is obtained by measuring the distance namely 5 1/16" (128 mm) for left and right
hole respectively.

o Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor

side.

9.2.2 To Drill a Hole in the Wall and
Install a Sleeve of Piping

1 Insert the piping sleeve to the hole.
2 Fix the bushing to the sleeve.

Wall

Indoor

3 Cut the sleeve until it extrudes about 19/32"

(15 mm) from the wall.

CAUTION

When the wall is hollow, please be sure
to use the sleeve for tube assembly to
prevent dangers caused by mice biting
the connection cable.

Sleeve for
tube
assembly

4 Finish by sealing the sleeve with putty or

caulking compound at the final stage.

3

/4"(ø70mm)

ø2
through hole

33/4"

(95 mm)

Outdoor

19

Putty or caulking compound

/32" (15 mm)

Approx.

Bushing for tube
assembly

7

/32" -9/32"

(5-7 mm )

17

9.2.3 Indoor Unit Installation

Do n ot tu rn over the unit without it’s shock absorber du ring pull out the piping.

It may cause intake grille damage.

Use shock absorber during pull out the piping to p rotect the intake grille from damage.

p

u

l

l

o

u

t

t

h

e

p

i

p

i

n

g

Piping

Piping

p

u

l

l

o

u

t

t

h

e

p

i

p

i

n

g

PUSH PUSH

Intake grille

9.2.3.1 For the right rear piping

Step-1

Step-2

Step-3

Step-4

Pull out the Indoor piping

Install the Indoor Unit

Secure the Indoor Unit

Insert the connection cable

9.2.3.2 For the right bottom piping

Step-1

Step-2

Step-3

Step-4

Pull out the Indoor piping

Install the Indoor Unit

Insert the connection cable

Secure the Indoor Unit

9.2.3.3 For the embedded piping

Step-1

Step-2

Step-3

Step-4

Step-5

Step-6

Step-7

Step-8

Replace the drain hose

Bend the embedded piping

• Use a spring bender or equivalent to bend the
piping so that the piping is not crushed.

Pull the connection cable into Indoor Unit

• The inside and outside connection cable can be
connected without rem oving the front grille.

Cut and flare the embedded piping

• When determining the dimensions of the piping,
slide the unit all the way to the left on the installation
plate.

• Refer to the section “Cutting and flaring the piping”.

Install the Indoor Unit

Connect the piping

• Please refer to “C onnecting the piping” column in
outdoor unit section. (Below steps are done after
connecting the outdoor piping and gas-leakage
confirmatio n .)

Insulate and finish the piping

• Please refer to “Insulation of piping connection”
column as mentioned in indoor/outdoor unit
installation.

Secure the Indoor Unit

PUSH PUSH

Shock absorber

Right Rear piping

T ape it with

piping in a position as

mentioned in

Fig. bel ow.

Piping

Cover for

Drain

the right
piping

Cover for the
bottom piping

hose

Cover for the
bottom piping

Howtokeepthecover

In case of the cover is cut, keep the
cover at the rear of chassis as shown
in the illustration for future
reinstallation.
(Left, right and 2 bottom covers for
piping.)

Cover
for the
left
piping

Cover for pipin g

Right and Right Bottom piping

T ape it with piping in a

position as mentioned in

Fig. below.

Drain hose

Install the indoor unit

Hook the indoor unit onto the upper
portion of installation plate.(Engage
the indoor unit with the upper edge
of the installation plate). Ensure the
hooks are properly seated on the
installation plate by moving it in left
and right.

Piping

Cover for
the right
piping

Cover for the
bottom piping

Indoor unit

Cover for
the left
piping

Hooks at
installation
plate

Sleeve for
piping hole

Piping

Drain hose

Secure the Indoor Unit

1. Press the lower left and right side
of the unit against the installation
plate until hooks engages with their
slot (sound click).

Unit’s
hook

To take out the unit, push the
marking at the bottom unit, and pull it
slightly towards you to disengage the

n

k

m

i

r

a

g

hooks from the unit.

Installation
plate

Insert the connection cable

A

2

b

3

o

/

(

4

u

7

"

t

0

-

-

3

8

5

0

/

m

3

2

m

"

)

Guide
surface

Connection cable

Connection cable

Gas side
piping

Liquid side
piping

Drain hose

(This can be used for left rear piping and bottom
piping also.)

18

Replace the drain hose

Rear view for left piping installation

Drain cap

Drain hose

Connection cable

Drain hose

Adjust the piping slightly downwards.

Piping

Drain hose

Sleeve for pip ing hole

More than 37

Connection
cable

13

/32"(950mm)

How to pull the piping and drain hose out, in case of embedded piping.

•

Apply putty or
caulking material
to seal the wa ll
opening.

PVC tube for
drain hose (VP-20)

PVC tube
for d rain
hose

Drain hose adapter

Join indoor drain hose to 3/4" (20 mm) nominal PVC pipe size

•

by using drain hose adapter

Remarks :
Make sure indoor unit drain hose & 3/4" (20 mm ) nom inal PVC pipe
are fully inserted to drain hose adapter

8

usage

"

16

/

9

More than 27

(700 mm)

Indoor unit

3

when necessary.

8

8

.

h

t

e

r

o

/

M

3

1

7

3

e

r

o

M

"

1/2

18

PVC tube (VP-65) for piping
and connection cable

PVC tube for drain hose (VP-30)

Cable

Piping

15

/16"(100mm)

n

a

2

3

h

t

70

4

(

5

9

(

"

n

a

m

)

m

m

0

Connection
cable

Piping

)

Drain hose

m

from main unit

In case of left piping how to insert the connection

•

cable and drain hose.

°

5

4

Drain
hose

Cable

Piping

(For the right piping, follow the same procedure)

Indoor unit
drain hose

Close join by Vinyl Tape ( )

Drain hose adapter

3/4" (20 mm) nominal PVC pipe

- Install incline downward more than 1°

- Apply PVC glue at the join.

8

9.2.4 Connect the Cable to the Indoor Unit

1. The inside and outside connection cable can
be connected without removing the front grille.

2. Unscrew the conduit cover and fix the conduit
connector to conduit cover with lock nut, then
secure it against chassis.

3. Connection cable between indoor unit and
outdoor unit should be UL listed or CSA
approved 4 conductor wires minimum AWG16
in accordance with local electric codes.
o Ensure the colour of wires of outdoor unit

and terminal number are the same as the
indoor's respectively

Terminals on the indoor unit 1 2 3

Colour of wires (connection cable)

Terminals on the outdoor unit 1 2 3

WARNING

This equipment must be properly earthed.

o Earth lead wire shall be Yellow/Green

(Y/G) in colour and shall be longer than
other lead wires as shown in the figure for
electrical safety in case of the slipping.

Conduit
Connector

Conduit
Cover

Lock Nut

Chassis

Rear Side of Indoor Unit

Ter m i n a l
Board

Indoor and
outdoor
connection
cable

123

Holder

Earth Wire
longer than
others AC
wires for
safety
reason

19

9.2.5 Wiring Stripping and connecting requirement



mproperfla

rin

g



Wire stripping

Indoor/outdoor
connection
terminal board

No loose strand
when inserted

WARNING

Do not joint wires

(10±1 mm)

13/32" ± 1/16"

RISK OF FIRE

JOINING OF WIRES
MAY CAUSE
OVER HEATING
AND FIRE.

7

/32"

(5 mm)

or more

(gap between wires)

Conductor

fully inserted

ACCEPT PROHIBITED PROHIBITED

Conductor

over inserted

OR

Conductor not

fully inserted

OR

OR

Use complete wire without joining.

Use approved socket and plug with ear th pin.

Wire connection in this area must follow to
national wiring rules.

9.2.5.1 Cutting and flaring the piping

1 Please cut using pipe cutter and then remove the burrs.
2 Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.

Turn the piping end down to avoid the metal powder entering the pipe.

3 Please make flare after inserting the flare nut onto the copper pipes.

1

Bar

0–

/32"

(0-0.5 mm)

Copper
pipe

When properly flared, the internal surface of the
flare will evenly shine and be of even thickness.
Since the flare part comes into contact with the
connections, carefully c heck the flare finish.

.Tocut

Pipe

Poin t down

2. T o remove burrs

Reamer

Bar

Clamp handle

3. To flare

Handle

Yo k e

Core

Red arrow mark

I

Inclined Surface

damaged

Cracked Uneven

thickness

20

10. Operation Control

10.1 Basic Function

Inverter control, which equipped with a microcomputer in determining the most suitable operation mode as time
passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operation
mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and
performing temperature shifting. The compressor at outdoor unit is operating following the frequency instructed by
the microcomputer at indoor unit that judging the condition according to internal setting temperature and intake air
temperature.

10.1.1 Internal Setting Temperature

Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting
processes. These shifting processes are depending on the air conditioner settings and the operation environment.
The final shifted value will be used as internal setting temperature and it is updated continuously whenever the
electrical power is supplied to the unit.

Remote Control Setting Temperature

Outdoor Air Temperature Shifting

60.8°F - 86°F

Auto Operation Mode Shifting

Indoor Air Temperature Shifting

Powerful Mode Shifting

Setting Temperature Limit Checking

(Min: 60.8°F; Max 91.4°F)

Internal Setting Temperature

10.2 Cooling operation

10.2.1 Thermostat control

 Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature - Internal setting

temperature < -3.6°F.

 Capability resume supply to indoor unit after waiting for 3 minutes, if the Intake Air temperature - Internal setting

temperature > Capability supply OFF point.

10.3 Soft Dry Operation

10.3.1 Thermostat control

 Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature - Internal setting

temperature < -5.4°F.

 Capability resume to indoor unit after waiting for 3 minutes, if the Intake Air temperature - Internal setting

temperature > Capability supply OFF point.

10.4 Heating Operation

10.4.1 Thermostat control

 Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature - Internal setting

temperature > 1.8°F.

 During this condition, the indoor fan is stopped if compressor is ON.
 Capability resume supply to indoor unit after waiting for 3 minutes, if the Intake Air Temperature - Internal setting

temperature < Capability supply OFF point.

21

10.4.2 Temperature Sampling Control

 Temperature sampling is controlled by outdoor unit where room temperature for all power supply ON indoor unit

could be obtained.

 When capability supply to the indoor unit is OFF and the compressor is ON during heating operation, the indoor

fan motor is stopped. During this condition, 15 seconds after sampling signal from outdoor unit is received, the
indoor fan start operation at low fan speed.

 However, within first 4 minutes of capability stopped supply to the indoor unit, even sampling signal is received,

the sampling control is cancelled.

10.5 Automatic Operation

 This mode can be set using remote control and the operation is decided by remote control setting temperature,

remote control operation mode, indoor intake and outdoor air temperature.

 During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for

30 seconds to detect the indoor intake and outdoor air temperature. The operation mode is decided based on
below chart.

Indoor intake air
temperature (F)

96.8

Heating Mode

Soft Dry Mode

T1

T2

T3

Cooling Mode

Remote Control
setting temperature

60.8

66.255.4 69.8 73.4 77

10.6 Indoor Fan Speed Control

 Indoor Fan Speed can be set using remote control.

10.6.1 Fan Speed Rotation Chart

Mode Fan Tap Application rpm rpm

SHi Pwr Me+ 1080 1110

Hi Fc, RC 990 1020

Me+ RC 900 930

Me RC 820 840

COOL

Mode Fan Tap Application rpm rpm

HEAT

Me- RC 740 750

Lo Fcmin, RC 660 660

Lo- QuietLo 570 570

SLo Dry 550 550

SSLo Auto Cut 540 540

SSHi Pwr Me+ 1210 1240

SHi Fh, RC 1120 1150

Me+ RC 1030 1050

Me RC 950 960

Me- RC 860 870

Lo Fhmin, RC 780 780

Lo- QuietLo 690 690

SLo Thermo Off, Hot start 580 580

SSLo Thermo Off 570 570

Outdoor air
temperature (F)

ME5RKUA ME7RKUA

ME5RKUA ME7RKUA

22

10.7 Indoor Fan Motor Operation

H

FanS

M

10.7.1 Residual Heat Removal Control

 To prevent high pressure at indoor unit, when heating mode thermostat-off condition or power supply OFF,

indoor fan continue to operate at controlled fan speed for maximum 30 seconds then stop.

10.7.2 Basic Rotation Speed (rpm)

 Manual Fan Speed

[Cooling, Dry]
o Fan motor’s number of rotation is determined according to remote control setting.

Remote control ○ ○ ○ ○ ○

Tab Hi Me+ Me Me- Lo

[Heating]
o Fan motor’s number of rotation is determined according to remote control setting.

Remote control ○ ○ ○ ○ ○

Tab Shi Me+ Me Me- Lo

 Auto Fan Speed

[Cooling, Dry]

o According to room temperature and setting temperature, indoor fan speed is determined automatically.
o The indoor fan will operate according to pattern below.

peed

igher

edium

Lower

abc def gh

o During operation, indoor fan motor may stop due to odor prevention.

[Heating]
o According to indoor pipe temperature, automatic heating fan speed is determined as follows.

[1 pattern : 10 s]

ab

RPM Increased

o

F

102.2

o

F

66.2

Indoor Pipe Temp.

RPM Maintain

RPM Reduced

OFF

95oC

60.8oF

 Feedback control

o Immediately after the fan motor started, feedback control is performed once every second.
o During fan motor on, if fan motor feedback ≥ 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor

error counter increase, fan motor is then stop and restart. If the fan motor counter becomes 7 times, then
H19 - fan motor error is detected. Operation stops and cannot on back.

23

10.8 Outdoor Fan Motor Operation

0

Outdoor fan motor is operated with fan speed number of rotation. It starts when compressor starts operation and it
stops 30 seconds after compressor stops operation.

ON ON

Compressor OFF

ON Fan Speed ON

Outdoor Fan 30 sec OFF

10.9 Airflow Direction

 There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by

vertical vanes).

 Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat

exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using
remote control).

10.9.1 Vertical Airflow

Operation Mode Airflow Direction

Auto with Heat Exchanger

Heating

Cooling

Soft Dry

Temperature

Manual 20 32 45 57 68

Auto 20 ~ 45

Manual 20 26 32 37 45

Auto 20 ~ 45

Manual 20 26 32 37 45

A 20

B 57

C 32

1 2 3 4 5

 Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the

angles as stated above. For heating mode operation, the angle of the vane depends on the indoor heat
exchanger temperature as Figure 1 below. When the air conditioner is stopped using remote control, the vane
will shift to close position.

 Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated above and

the positions of the vane are as Figure 2 below. When the air conditioner is stopped using remote control, the
vane will shift to close position.

36.4°F

96.8°F

Indoor Heat Exchanger
Temperature

C

B

A

122°F

86°F

°

1

2

3

4

5

140°

Vane angle (°)

Side View

Close position

10.9.2 Horizontal Airflow

The horizontal airflow direction louvers can be adjusted manually by hand.

24

Figure 2Figure 1

10.10 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode)

 Purpose

o To provide quiet cooling operation compare to normal operation.

 Control condition

o Quiet operation start condition

 When “Quiet” button at remote control is pressed.

Quiet LED illuminates.

o Quiet operation stop condition

 When one of the following conditions is satisfied, quiet operation stops:

 POWERFUL/QUIET button is pressed.
 Stop by OFF/ON button.
 OFF Timer activates.
 POWERFUL/QUIET button is pressed again.

 When quiet operation is stopped, operation is shifted to normal operation with previous setting.
 When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.
 When operation mode is changed, quiet operation is shifted to quiet operation of the new mode.
 During quiet operation, if ON timer activates, quiet operation maintains.
 After off, when on back, quiet operation is not memorised.

 Control contents

o Auto fan speed is change from normal setting to quiet setting of respective fan speed. This is to reduce

sound of Hi, Me, Lo for 3dB.

o Manual fan speed for quiet operation is -1 step from setting fan speed.

10.11 Quiet Operation (Heating)

 Purpose

o To provide quiet heating operation compare to normal operation.

 Control condition

o Quiet operation start condition

 When “POWERFUL/QUIET” button at remote control is pressed.

Quiet LED illuminates.

o Quiet operation stop condition

 When one of the following conditions is satisfied, quiet operation stops:

 Stop by OFF/ON button.
 Timer “off” activates.
 POWERFUL/QUIET button is pressed again.

 When quiet operation is stopped, operation is shifted to normal operation with previous setting.
 When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.
 When operation mode is changed, quiet operation is shifted to quiet operation of the new mode.
 During quiet operation, if timer “on” activates, quiet operation maintains.
 After off, when on back, quiet operation is not memorised.

 Control contents

o Fan speed auto

 Indoor FM RPM depends on pipe temperature sensor of indoor heat exchanger. Auto fan speed is

changed from normal setting to quiet setting of respective fan speed. This is to reduce sound of Hi, Me,
Lo for 3dB.

o Fan speed manual

 Manual fan speed for quiet operation is -1 step from setting fan speed.

10.12 Powerful Mode Operation

 When the power mode is selected, the internal setting temperature will shift lower up to 7.2F for Cooling/Soft

Dry or higher up to 10.8°F for heating than remote control setting temperature, the powerful operation continue
until user cancel the Powerful operation by pressing powerful button again.

25

10.13 Timer Control

e

air

e

air

10.13.1 ON Timer Control

 ON Timer can be set using remote control, where the unit with timer set will start operation earlier than the setting

time. This is to provide a comfortable environment when reaching the set ON time.

 60 minutes before the set ON time, indoor (at fan speed of Lo-) and outdoor fan motor start operation for

30 seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the
operation starting time.

 From the above judgment, the decided operation will start operation earlier than the set time as shown below.

Indoorintak
temperature (oF)

86

77

5min

15 min

10 min

86 95

o

F)

(

Outdoor air
temperature (

Indoorintak
temperature (oF)

59

41

35 min

o

F)

25 min

30 min

32 41

o

F)

(

Outdoor air
temperature (

o

F)

Cooling/Soft Dry

Heating

10.13.2 OFF Timer Control

 OFF Timer can be set using remote control, the unit with timer set will stop at set time.

10.14 Auto Restart Control

 When the power supply is cut off during the operation of air conditioner, the compressor will re-operate between

three to four minutes (10 patterns to be selected randomly) after power resume.

 During multi split connection, Indoor unit will resume previous mode, include unit standby mode.

10.15 Indication Panel

LED POWER TIMER QUIET POWERFUL AUTO COMFORT ECONAVI

Color Green Orange Orange Orange Green Green

Light ON Operation ON Timer Setting ON Quiet Mode ON Powerful Mode ON Auto Comfort ON Econavi Mode ON

Light OFF Operation OFF Timer Setting OFF Quiet Mode OFF Powerful Mode OFF Auto Comfort OFF Econavi Mode OFF

Note:
 If POWER LED is blinking (0.5 second ON, 0.5 second OFF), the possible operation of the unit are during Indoor

Residual Heat Removal, Hot Start, during Deice operation, operation mode judgment, or ON timer sampling.

 If POWER LED is blinking (2.5 seconds ON, 0.5 second OFF), the unit is in standby mode.
 If TIMER LED is blinking, there is an abnormality operation occurs.

26

10.16 ECONAVI and AUTO COMFORT Operation

 A Pyoelectric infrared sensor is used to detect injection strength variation of infrared at setting area to determine

the presence or absence of human and its activity level. Human detection area is shown in figure below:

Top V i ew

90°

2m

Angle of detection

7m

Area of detection

 ECONAVI and AUTO COMFORT operation – Human presence/absence detection outlined flow

Process infrared sensor output signal

Human detection (movement) every 3 seconds.

▼

Human detection records

Records human detection (movement) result for 30 seconds and determine its activity level i.e. Hi/Lo.

▼

Presence / absence detection

Compares current and previous human detection result every 30 seconds to determine the presence
or absence of human.

▼

Presence / absence determination

Based on human presence / absence detection, if human presence detection showed within
30 minutes, it is recognised that human is present. If human absence detection showed continuously
for more than 30 minutes, it is recognised that no human is present.

 ECONAVI and AUTO COMFORT Sensor abnormality detection

1. Connector pulled out (disconnected), Wire cut Abnormality (Fix Output at Hi)

a. Abnormal judgment start condition.
Start from ECONAVI and AUTO COMFORT Sensor power ON, and end after 30 seconds.
b. Control content.
Judge ECONAVI and AUTO COMFORT Sensor power level every 100ms.
c. Abnormal Judgment condition.
When ECONAVI and AUTO COMFORT Sensor has continues for 25 seconds Hi level.

2. Circuit Abnormal (Fix Output Lo)

a. Abnormal judgment start condition.
After ECONAVI and AUTO COMFORT Sensor unit power ON, and after pressed 70 seconds.
b. Control content.
Judge ECONAVI and AUTO COMFORT Sensor power level every 100ms.
c. Abnormal Judgment condition.
When ECONAVI and AUTO COMFORT Sensor has continues at Lo level for 25 seconds.

3. Abnormal treatment

Any one of the above self-diagnosis result is abnormal

 Abnormal counter +1 and ECONAVI and AUTO COMFORT Sensor power supply OFF.
 After ECONAVI and AUTO COMFORT Sensor unit power is OFF for 5 seconds, Retry the ECONAVI and

AUTO COMFORT operation.
 When Abnormal counter reach 4 counts, ECONAVI and AUTO COMFORT sensor abnormality is

confirmed.
(Abnormal counter is cleared when sensor power ON and maintain normal for 120 seconds and above or
Clear Abnormal counter by power reset)

 Save ECONAVI and AUTO COMFORT Sensor Abnormality H59 (no Timer LED blinking).
 ECONAVI & AUTO COMFORT Sensor operation OFF, but ECONAVI and AUTO COMFORT LED

maintain ON.

 The unit still operate as normal.
 Sensor error counter can be cleared only after power supply reset or AC Reset button on the remote

control is pressed.

27

 ECONAVI and AUTO COMFORT Demo Mode

 To enable ECO DEMO mode, during unit is OFF (power standby):

Remote control normal mode

Press continously for 5s

SET

SET

Transmit ECO demo code
and after 30 seconds return to normal
mode.

TEMP

TEMP

SET

Transmit sunlight sensor check code
and after 30 seconds return to normal
mode.

TEMP

TEMP

SET

Transmit check code
and after 30 seconds return to normal
mode.

 To disable ECO Demo MODE:

 Transmit ECO Demo signal again.

Control details:
 During ECONAVI and AUTO COMFORT Demo mode, operation LED ON and horizontal vane will set to Auto

Swing.

 When Hi activity judge, Fan speed change to Hi Fan and ECONAVI and AUTO COMFORT LED ON.
 When Lo activity judge, Fan speed change to Lo Fan and ECONAVI and AUTO COMFORT LED OFF.
 No setting temperature adjustment.

 During ECONAVI and AUTO COMFORT operation, the internal setting temperature and fan speed are adjusted

in order to provide comfort and energy saving.

 ECONAVI Start condition.

 Press ECONAVI button.

 ECONAVI Stop condition.

 Press ECONAVI button again.
 OFF Timer activates.
 Press OFF/ON button to turn off the air conditioner.
 Press AUTO OFF/ON button to turn off the air conditioner.
 Press POWERFUL/QUIET button.

 AUTO COMFORT Start condition.

 Press AUTO COMFORT button.

 AUTO COMFORT Stop condition.

 Press AUTO COMFORT button again.
 OFF Timer activates.
 Press OFF/ON button to turn off the air conditioner.
 Press AUTO OFF/ON button to turn off the air conditioner.
 Press POWERFUL/QUIET button.

 ECONAVI and AUTO COMFORT operation could ON when any of the following conditions is fulfilled:

 During forced cooling or forced heating operation.

 Power Failure

 ECONAVI and AUTO COMFORT operation will be resuming after recovered from power failure.

28

 Timer Operation

V

 When unit is turn on by ON Timer and ECONAVI and AUTO COMFORT operation is ON during previous

operation before OFF, ECONAVI and AUTO COMFORT operation will not be ON automatically.

 When unit is turn on by ON Timer and ECONAVI and AUTO COMFORT operation is OFF during

previous operation before OFF, ECONAVI and AUTO COMFORT operation will not be ON automatically.

 Other Information

 ECONAVI and AUTO COMFORT, Powerful, Quiet and Mild Dry Cooling cannot be operated at the same

time.

 ECONAVI and AUTO COMFORT sensor initialized time is 70 seconds from power supplied to ECONAVI

and AUTO COMFORT sensor, or 70 seconds from the operation start.

 Setting Temperature and Fan Speed Shift

 Mono Sensor

I ; Detecting human presence and activity, the unit controls room temperature to save energy.

ECONA

Mode

COOL/DRY

HEAT

AUTO COMFORT ; Detecting human presence and activity, the unit controls room temperature to keep human
comfortable consistently.

Mode

COOL/DRY

HEAT

* During low activity, fan speed 1 tap up for first 15 minutes or until set temperature is reached.
** During human absence, maximum fan speed for COOL/DRY mode is medium fan.

Human

Set
temperature

Human

Set
temperature

Set
Fan Speed

Low activity Normal activity

+2°F / +1°C

Low activity Normal activity

+2°F / +1°C

+0.5°F / +0.3°C

+1 tap*

High activity Absent

-4°F / -2°C

High activity Absent

-2°F / -1°C

-4°F / -2°C

+1 tap

+4°F /
+2°C

+4°F /
+2°C

-4°F /

-2°C

-4°F /

-2°C

10.16.1 Human Activity Sensor Check Mode

 To enable Human Activity sensor abnormality check mode, during ECONAVI operation ON:

Remote control normal mode

Press continously for 5s

SET

SET

TEMP

TEMP

SET

TEMP

TEMP

SET

 During ECONAVI is ON, when CHECK signal received, if either sensors has abnormality, the 4 times abnormality

counter is ignored, ECONAVI Indicator will blink immediately and error code is memorized.

 The unit could operate without ECONAVI or AUTO COMFORT.
 The ECONAVI indicator blinking could be cancelled by pressing ECONAVI button again.
 If the human activity sensor has no abnormality, the CHECK process will end and continue with normal operation.

Tran sm it EC O dem o c od e
and after 30 seconds return to normal
mode.

Transmit sunlight sensor check code
and after 30 seconds return to normal
mode.

Transmit check code
and after 30 seconds return to normal
mode.

29

11. Servicing Mode

11.1 Auto Off/On Button

Auto OFF/ON
Button pressed

Auto Operation Test Run Operation

Beep Beep x 2

5 sec

(Forced Cooling Operation)

1 AUTO OPERATION MODE

The Auto operation will be activated immediately once the Auto OFF/ON button is pressed. This operation
can be used to operate air conditioner with limited function if remote control is misplaced or malfunction.

2 TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)

The Test Run operation will be activated if the Auto OFF/ON button is pressed continuously for more than
5 seconds. A “beep” sound will heard at the fifth seconds, in order to identify the starting of Test Run
operation (Forced cooling operation). Within 5 minutes after Forced cooling operation start, the Auto OFF/ON
button is pressed for more than 5 seconds. A 2 “beep” sounds will heard at the fifth seconds, in order to
identify the starting of Forced heating operation.

The Auto OFF/ON button may be used together with remote control to set / change the advance setting of air
conditioner operation.

Auto OFF/ON button

pressed

Auto Operation

5sec 8sec 11sec 16sec

Te st R u n O pe r a ti o n

(Forced Cooling Operation)

Main unit always continue Test Run (forced cooling) operation

Test Run Operation

(Forced Heating Operation)

Auto OFF/ON

Button pressed

Remote Control Number

Stop Test Run Operation

Switch Mode

5 sec

(Forced Cooling Operation)

Remote Control Receiving

Sound OFF/ON

Auto OFF/ON

Button pressed

Stop

Beep Beep x 2

Press “AC RESET” Press “AC RESET”, then any

3 REMOTE CONTROL NUMBER SWITCH MODE

The Remote Control Number Switch Mode will be activated if the Auto OFF/ON button is pressed
continuously for more than 11 seconds (3 “beep” sounds will occur at 11th seconds to identify the Remote
Control Number Switch Mode is in standby condition) and press “AC RESET” button and then press any
button at remote control to transmit and store the desired transmission code to the EEPROM.

There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor
unit. The indoor unit will only operate when received signal with same transmission code from remote control.
This could prevent signal interference when there are 2 or more indoor units installed nearby together.
To change remote control transmission code, short or open jumpers at the remote control printed circuit
board.

J1

D2

Jumper A (J1) Jumper B (D2) Remote Control No.

Short Open A (Default)

Open Open B

Short Short C

Open Short D

 During Remote Control Number Switch Mode, press any button at remote control to transmit and store

the transmission code to the EEPROM.

4 REMOTE CONTROL RECEIVING SOUND OFF/ON MODE

The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed
continuously for more than 16 seconds (4 “beep” sounds will occur at 16
Control Receiving Sound OFF/ON Mode is in standby condition) and press “AC Reset” button at remote
control.

Beep x 3 Beep x 4

key at remote control

Remote Control Printed Circuit Board

th

seconds to identify the Remote

Press “AC RESET”

at remote control

30

Press Auto OFF/ON button to toggle remote control receiving sound.

- Short “beep”: Turn OFF remote control receiving sound.

- Long “beep”: Turn ON remote control receiving sound.

After Auto OFF/ON button is pressed, the 20 seconds counter for Remote Control Receiving Sound OFF/ON
Mode is restarted.

11.2 Remote Control Button

11.2.1 SET Button

 To check remote control transmission code and store the transmission code to EEPROM

o Press “Set” button continuously for 10 seconds by using pointer
o Press “Timer Set” button unit a “beep” sound is heard as confirmation of transmission code change.

11.2.2 RESET (RC)

 To clear and restore the remote control setting to factory default.

o Press once to clear the memory

11.2.3 RESET (AC)

 To restore the unit’s setting to factory default.

o Press once to restore the unit’s setting

11.2.4 TIMER ▲

 To change indoor unit indicator’s LED intensity:

o Press continuously for 5 seconds.

11.2.5 TIMER ▼

 To change remote control display from Degree Celsius (°C) to Degree Fahrenheit (°F)

o Press continuously for 10 seconds.

11.2.6 CLOCK Button

 To change the remote control time format:

o Press for more than 5 seconds

31

12. Troubleshooting Guide

12.1 Refrigeration Cycle System

In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the
refrigeration cycle depends on various conditions, the standard
values for them are shown in the table on the right.

Normal Pressure and Outlet Air Temperature (Standard)

Cooling Mode

Heating Mode

Condition: Indoor fan speed = High

Gas Pressure

PSI

2

G)

(kg/cm

130.53 ~ 174.04
(9 ~ 12)

333.58 ~ 420.60

(23 ~ 29)

Outdoor temperature 95°F at cooling mode
and 44.6°F at heating mode.
Compressor operate at rated frequency

Outlet air

Temperature

(°F)

53.6 ~ 60.8

96.8 ~ 113

Difference in the intake

and outlet

air temperatures

Less than 14.4°F at the cooling mode.
Less than 25.2°F at the cooling mode.

Value of electric

current during operation

Lower than specified

More than 14.4°F

(15 minutes after an

operation is started.)

at cooling mode.

Above 25.2°F

(15 minutes after an

operation is started.)

at heating mode

Higher than specified

Normal

Dusty condenser

preventing heat radiation

Excessive amount

of refrigerant

● Measuring the air temperature
difference

● Measuring electric current
during operation

Gas side
pressure

Cooling Mode

Heating Mode

High

Low

Low

Low

Low

Low

Inefficient compressor

Insufficient refrigerant

Clogged strainer or

expansion valve

Inefficient compressor

Insufficient refrigerant

Clogged strainer or

capillary tube

32

● Measuring gas side pressure

12.1.1 Relationship between the condition of the air conditioner and pressure and
electric current

edoMgnitaeHedoMgnilooC

Condition of the air

conditioner

Insufficient refrigerant

(gas leakage)

Clogged capillary tube

or Strainer

Short circuit in the

indoor unit

Heat radiation deficiency

of the outdoor unit

Inefficient compression

Low Pressure High Pressure

Electric current

during operating

Low Pressure High Pressure

Electric current

during operating

 Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is

started.

33

12.2 Breakdown Self Diagnosis Function

T

E

M

P

O

F

F

/

O

N

T

I

M

E

R

S

C

C

L

O

N

O

2

3

C

C

K

12.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)

 Once error occurred during operation, the unit will stop its operation, and Timer LED blinks.
 Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown

condition, the LED will ON again.

 In operation after breakdown repair, the Timer LED will not blink. The last error code (abnormality) will be stored

in IC memory.

12.2.2 To Make a Diagnosis

1 Timer LED starts to blink and the unit automatically stops the operation.
2 Press the CHECK button on the remote control continuously for

5 seconds.

3 “- -“ will be displayed on the remote control display.

Note: Display only for “- -“ (No signal transmission, no receiving sound
and no Power LED blinking)

4 Press the TIMER ▲ or ▼ button on the remote control. The code “H00”

(no abnormality) will be displayed and signal will be transmit to the main
unit.

5 Each press of the button (▲ or ▼) will increase error code number and

transmit error code signal to the main unit.

"Check" button

6 When the latest abnormality code on the main unit and code transmitted

from the remote control are matched, Power LED will light up for
30 seconds and a “beep” sound (continuously for 4 seconds) will be
heard. If no codes are matched, Power LED will light up for 0.5 seconds and no sound will be heard.

7 The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for

5 seconds or operating the unit for 30 seconds.

8 The LED will be off if the unit is turned off or the RESET button on the main unit is pressed.

A

U

T

O

H

E

A

T

F

A

C

O

O

L

D

R

Y

F

A

N

E

C

O

N

A

V

M

O

D

E

P

O

W

E

R

F

U

L

/

Q

U

I

E

T

F

A

T

I

M

E

R

O

N

1

O

F

F

F

F

S

E

T

C

H

H

E

E

C

K

C

L

O

C

N

S

P

E

E

D

A

I

R

S

W

I

N

G

O

F

F

/

O

N

I

A

U

T

O

C

O

M

F

O

R

T

T

E

M

P

A

I

R

S

W

I

N

G

N

S

P

E

E

D

S

E

E

T

T

2

3

C

A

A

N

N

C

E

E

L

A

C

R

C

K

R

E

S

E

T

12.2.3 To Display Memorized Error Code (Protective Operation)

1 Turn power on.
2 Press the CHECK button on the remote control
3 “- -“ will be displayed on the remote control display.

Note: Display only for “- -“ (No signal transmission, no receiving sound and no Power LED blinking)

4 Press the TIMER ▲ or ▼ button on the remote control. The code “H00” (no abnormality) will be displayed

and signal will be transmit to the main unit.

5 Each press of the button (▲ or ▼) will increase error code number and transmit error code signal to the main

unit.

6 When the latest abnormality code on the main unit and code transmitted from the remote control are matched,

Power LED will light up for 30 seconds and a “beep” sound (continuously for 4 seconds) will be heard. If no
codes are matched, Power LED will light up for 0.5 seconds and no sound will be heard.

7 The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for

5 seconds or operating the unit for 30 seconds.

8 The same diagnosis can be repeated by turning power on again.

12.2.4 To Clear Memorized Error Code after Repair (Protective Operation)

1 Turn power on (in standby condition).
2 Press the AUTO button for 5 seconds (a “beep” sound is heard) on the main unit to operate the unit at

Forced Cooling Operation Mode.

3 Press the CHECK button on the remote control for about 1 second with a pointed object to transmit signal to

main unit. A “beep” sound is heard, and the Error Code is cleared.

12.2.5 Temporary Operation (Depending On Breakdown Status)

1 Press the Auto OFF/ON button on the main unit (a “beep” sound is heard) to operate the unit. (Remote

control is enable again).

2 The unit can be temporarily be used until repaired.

Error Code Operation Temporary items

H23 Cooling

H27, H28 Cooling, Heating

Emergency Operation

with limited power

34

12.3 Error Code Table

Diagnosis

display

H11 Indoor/outdoor

H12 Indoor unit capacity

H14 Indoor intake air

H15 Compressor

H16 Outdoor current

H19 Indoor fan motor

H23 Indoor heat exchanger

H24 Indoor heat exchanger

H25 Indoor ion device

H27 Outdoor air temperature

H28 Outdoor heat exchanger

H30 Outdoor discharge pipe

H32 Outdoor heat exchanger

H33 Indoor / outdoor

H34 Outdoor heat sink

H36 Outdoor gas pipe

H37 Outdoor liquid pipe

H38 Indoor/Outdoor

Abnormality /

Protection control

abnormal
communication

unmatched

temperature sensor
abnormality

temperature sensor
abnormality

transformer (CT)
abnormality

merchanism lock

temperature sensor
abnormality

temperature sensor 2
abnormality

abnormality

sensor abnormality

temperature sensor 1
abnormality

temperature sensor
abnormality

temperature sensor 2
abnormality

misconnection
abnormality

temperature sensor
abnormality

temperature sensor
abnormality

temperature sensor
abnormality

mismatch (brand code)

Abnormality

Judgement

After operation for
1 minute

90s after power
supply

Continuous for 5s — Indoor intake air temperature

Continuous for 5s — Compressor temperature

— — Current transformer faulty or

Continuous
happen for 7 times

Continuous for 5s — Indoor heat exchanger

Continuous for 5s — Indoor heat exchanger

Port is ON for 10s — • ion device PCB
during ion device
off

Continuous for 5s — Outdoor air temperature

Continuous for 5s — Outdoor heat exchanger

Continuous for 5s — Outdoor discharge pipe

Continuous for 5s — Outdoor heat exchanger

— — Indoor and outdoor rated

Continuous for 2s — Outdoor heat sink

Continuous for 5s Heating protection

Continuous for 5s Cooling protection

— — Brand code not match

Protection

operation

Indoor fan only
operation can
start by entering
into force cooling
operation

— Total indoor capability more

— Indoor fan motor lock or

operation only

operation only

Indoor/outdoor
communication not establish

than maximum limit or less
than minimum limit, or
number of indoor unit less
than two.

sensor open or short circuit

sensor open or short circuit

compressor faulty

feedback abnormal

temperature sensor open or
short circuit

temperature sensor 2 open
or short circuit

sensor open or short circuit

temperature sensor 1 open
or short circuit

temperature sensor open or
short circuit

temperature sensor 2 open
or short circuit

voltage different

temperature sensor open
or short circuit

Outdoor gas pipe
temperature sensor open or
short circuit

Outdoor liquid pipe
temperature sensor open or
short circuit

Problem Check location

• Indoor/outdoor wire terminal

• Indoor/outdoor PCB

• Indoor/outdoor connection wire

• Indoor/outdoor connection wire

• Indoor/outdoor PCB

• Specification and combination
table in catalogue

• Indoor intake air temperature
sensor lead wire and connector

• Compressor temperature sensor
lead wire and connector

• Outdoor PCB faulty or
compressor faulty

• Fan motor lead wire and
connector

• Fan motor lock or block

• Indoor heat exchanger
temperature sensor lead wire and
connector

• Indoor heat exchanger
temperature sensor 2 lead wire
and connector

—

• Outdoor air temperature sensor
lead wire and connector

• Outdoor heat exchanger
temperature sensor 1 lead wire
and connector

• Outdoor discharge pipe
temperature sensor lead wire and
connector

• Outdoor heat exchanger
temperature sensor 2 lead wire
and connector

• Indoor and outdoor units check

• Outdoor heat sink sensor

• Outdoor gas pipe temperature
sensor lead wire and connector

• Outdoor liquid pipe temperature
sensor lead wire and connector

• Check indoor unit and outdoor
unit.

——noitarepolamroN—eruliaffoyromemoN00H

35

Diagnosis

display

Abnormality /

Protection control

Abnormality

Judgement

Protection

operation

Problem Check location

H39 Abnormal indoor

operating unit or
standby units

H41 Abnormal wiring or

piping connection

H59 ECONAVI sensor

abnormality

H64 Outdoor high pressure

sensor abnormality

H97 Outdoor fan motor

mechanism lock

H98 Indoor high pressure

protection

H99 Indoor operating unit

freeze protection

F11 4-way valve switching

abnormality

F17 Indoor standby units

freezing abnormality

F90 Power factor correction

(PFC) circuit protection

F91 Refrigeration cycle

abnormality

F93 Compressor abnormal

revolution

F94 Compressor discharge

overshoot protection

F95 Outdoor cooling high

pressure protection

F96 Power transistormodule

overheating protection

F97 Compressor

overheating protection

F98 Total running current

protection

F99 Outdoor direct current

(DC) peak detection

3 times happen
within 40 minutes

— — Wrongwiringand

Continuous for
25s

Continuous for 1
minute

2 times happen
within 30 minutes

— — Indoor high pressure

— — Indoor freeze protection

4 times happen
within 30 minutes

3 times happen
within 40 minutes

4 times happen
within 10 minutes

2 times happen
within 20 minutes

4 times happen
within 20 minutes

4 times happen
within 30 minutes

4 times happen
within 20 minutes

4 times happen
within 30 minutes

3 times happen
within 30 minutes

3 times happen
within 20 minutes

Continuous
happen for 7 times

— Wrong wiring and connecting

pipe, expansion valve
abnormality, indoor heat
exchanger sensor open
circuit

connecting pipe, expansion
valve abnormality

— ECOANVI sensor open or

short circuit

— High pressure sensor open

circuit during compressor

— Outdoor fan motor lock or

feedback abnormal

protection (Heating)

(Cooling)

— 4-way valve switching

abnormal

— Wrong wiring and connecting

pipe, expansion valve
leakage, indoor heat
exchanger sensor open
circuit

— Power factor correction

circuit abnormal

— Refrigeration cycle abnormal • Insufficient refrigerant or valve

— Compressor abnormal

revolution

— Compressor discharge

pressure overshoot

— Cooling high pressure

protection

— Power transistor module

overheat

— Compressor overheat • Insufficient refrigerant

— Total current protection • Check refrigeration system

— Power transistor module

current protection

• Check the indoor/outdoor
connection wire and connection
pipe.

• Indoor heat exchanger sensor
lead wire and connector.

• Expansion valve and lead wire
and connector system.

• Check indoor/outdoor
connection wire and connection
pipe

• Expansion valve and lead wire
and connector

• ECONAVI sensor (defective or
disconnected)

• ECONAVI PCB

• High pressure sensor

• Lead wire and connector

• Outdoor fan motor lead wire and
connector

• Fan motor lock or block

• Check indoor heat exchanger

• Air filter dirty

• Air circulation short circuit

• Check indoor heat exchanger

• Air filter dirty

• Air circulation short circuit

•4-wayvalve

• Lead wire and connector.

• Check indoor/outdoor connection
wire and pipe

• Indoor heat exchanger sensor
lead wire and connector

• Expansion valve lead wire and
connector.

• Outdoor PCB faulty

close

• Power transistor module faulty or

compressor lock

• Check refrigeration system

• Check refrigeration system

• Outdoor air circuit

• PCB faulty

• Outdoor air circuit (fan motor)

• Power source or compressor lock

• Power transistor module faulty or

compressor lock

Note:
“○” – Frequency measured and fan speed fixed

The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until “beep”
sound heard following by pressing the CHECK button at remote control.
Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors
(refer to Error Code Table) by using remote control or Auto OFF/ON button at indoor unit. However, the remote
control signal receiving sound is changed from one “beep” to four “beep” sounds.

36

12.4 Self-diagnosis Method

12.4.1 H11 (Indoor/Outdoor Abnormal Communication)

Malfunction Decision Conditions

 During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal

transmission is checked whether it is normal.

Malfunction Caused

 Faulty indoor unit PCB.
 Faulty outdoor unit PCB.
 Indoor unit-outdoor unit signal transmission error due to wrong wiring.
 Indoor unit-outdoor unit signal transmission error due to breaking of wire in the connection wires between the

indoor and outdoor units.

 Indoor unit-outdoor unit signal transmission error due to disturbed power supply waveform.

Troubleshooting

When abnormality indication starts again.

For safety reason and to prevent

Check the indoor-outdoor units’ connection wires.

component breakdown, always switch
off the power before remove and
connect the component.

Is there any wiring error?

NO

Disconnect terminal 3 wire and measure Vdc between terminal
2 & 3 from the outdoor unit.

Is the Vdc fluctuate between 10~70 Vdc?

YES

Reconnect terminal 3 wire and measure Vdc between terminal
2 & 3 from the outdoor unit.

Is the Vdc fluctuate between 10~70Vdc?

YES

NO

NO

Correct the indoor-outdoor units
connection wires.

Replace outdoor PCB.

Replace indoor unit PCB.

37

12.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched)

Malfunction Decision Conditions

 During startup, error code appears when different types of indoor and outdoor units are interconnected.

Malfunction Caused

 Wrong models interconnected.
 Wrong indoor unit or outdoor unit PCBs mounted.
 Indoor unit or outdoor unit PCBs defective.
 Indoor-outdoor unit signal transmission error due to wrong wiring.
 Indoor-outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor

and outdoor units.

Troubleshooting

When abnormality indication starts again.

For safety reason and to prevent

Check the indoor and outdoor unit connection wires.

component breakdown, always switch
off the power before remove and
connect the component.

Is there any wiring error?

NO

Check indoor and outdoor units model number.

Is indoor unit and outdoor unit model numbers matched?

YES

Check the spare part numbers of the indoor and outdoor unit
PCBs and compare with their Part Lists.

YES

Matched compatibility?

YES

NO

NO

Correct the indoor-outdoor unit’s connection wires.

Match the compatible model(s).

Change for the specified indoor or outdoor unit
PCB.

Replace the indoor and outdoor unit PCBs.

38

12.4.3 H14 (Indoor Intake Air Temperature Sensor Abnormality)



Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the indoor intake air

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the indoor intake air temperature sensor:

Plug out connector from the indoor unit PCB.
Measure the resistance of the indoor intake air
temperature sensor.

Is the measured resistance of the indoor intake air
temperature sensor matches the value specified in its
characteristic chart?

YES

Sensor (Thermistor)

70

60

50

)

40

30

Characteristics



Pipe temp. Sensor

Intake Air Temp. Sensor







NO

NO

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Connector poor contact.
Correct the connection.

Defect in indoor intake air temperature sensor.
Replace the indoor intake air temperature sensor.

Defect in indoor unit PCB.
Replace the indoor unit PCB.

Resistance (K

20

10

0

14 50 68 86 104 12232

Temperature (°F)

39

12.4.4 H15 (Compressor Temperature Sensor Abnormality)



Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor compressor temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor compressor
temperature sensor.

Is the measured resistance of the outdoor compressor
temperature sensor matches the value specified in its
characteristic chart?

YES

Compressor Temp. Sensor

(Thermistor) Charateristics

70

60

NO

NO

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Connector poor contact.
Correct the connection.

Defect in outdoor compressor temperature sensor.
Replace the outdoor compressor temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

50

)

40

30

Resistance (K

20

10

0

68 104 140 176 212 248 284

Temperature (°F)

40

12.4.5 H16 (Outdoor Current Transformer)

Malfunction Decision Conditions

 An input current, detected by Current Transformer CT, is below threshold value when the compressor is

operating at certain frequency value for 3 minutes.

Malfunction Caused

 Lack of gas.
 Broken CT (current transformer).
 Broken Outdoor PCB.

Troubleshooting

When abnormality indication starts again.

For safety reason and to
prevent component breakdown,

Refer to Service Manual Technical Graph
for Temp vs Current and Pressure.

always switch off the power before
remove and connect the component.

Suction pressure and running current is
normal.

● Check & replace defected CT.

In forced cooling, check suction pressure
versus running current.

Running current and suction pressure is
very low.

● Check for gas leaking source; Repair
or replace defected part(s).

● Capillary tube/expansion valve
blockage; Replace defected part(s).

Running current is much too low and
suction pressure is much too high.

● Compressor Lack Compression.

● Replace Compressor.

41

12.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked)

Malfunction Decision Conditions

 The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor

(feedback of rotation > 2550rpm or < 50rpm)

Malfunction Caused

 Operation stops due to short circuit inside the fan motor winding.
 Operation stops due to breaking of wire inside the fan motor.
 Operation stops due to breaking of fan motor lead wires.
 Operation stops due to Hall IC malfunction.
 Operation error due to faulty indoor unit PCB.

Troubleshooting

When abnormality indication starts again.

For safety reason and to prevent
component breakdown, always switch

Turn off power supply and rotate fan by hand.

off the power before remove and
connect the component.

Does fan rotate smoothly?

YES

Turn power supply on and operate fan.

Does it rotate? Stop fan motor.

NO

Turn off power supply and disconnect fan motor connector,
then turn power on.

Check the output of fan motor from indoor PCB.

Is the motor power supply voltage~325Vdc (pin 1 & 4)
generated?

Is the motor control voltage 15Vdc (pin 5 & 4) generated?

Operate the fan, is the rotation command voltage 1~5Vdc
(pin 6 & 4) generated?

NO

YES

NO

NO

NO

Replace fan motor.

Check the rotation feedback output from fan motor.

Rotate the fan motor by hand, is the rotation
feedback voltage 15Vdc (pin 7 & 4) generated?

Replace indoor PCB.

NO

YES

YES

Replace fan motor.

42

12.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality)



Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Plug out connector from the indoor unit PCB.
Measure the resistance of the indoor pipe temperature
sensor.

Is the connector connection normal?

Check the outdoor air temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor intake air
temperature sensor.

Is the measured resistance of the outdoor intake air
temperature sensor matches the value specified in its
characteristic chart?

Sensor (Thermistor)

70

60

50

)

40

30

Characteristics

Pipe temp. Sensor



Intake Air Temp. Sensor







YES

YES

NO

NO

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Connector poor contact.
Correct the connection.

Defect in outdoor intake air temperature sensor.
Replace the outdoor intake air temperature
sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

20

Resistance (K

10

0

14 50 68 86 104 12232

Temperature (°F)

43

12.4.8 H27 (Outdoor Air Temperature Sensor Abnormality)



Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature

sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor air temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor air temperature
sensor.

Is the measured resistance of the outdoor air temperature
sensor matches the value specified in its characteristic
chart?

YES

Sensor (Thermistor)

Characteristics

Outdoor Air Sensor



Outdoor Heat Exchanger



Sensor





)

Resistance (K

70

60

50

40

30

20

NO

NO

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Connector poor contact.
Correct the connection.

Defect in outdoor air temperature sensor.
Replace the outdoor air temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

10

0

14 50 68 86 104 12232

Temperature (°F)

44

12.4.9 H28 (Outdoor Pipe Temperature Sensor Abnormality)



Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature

sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor heat exchanger temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor heat exchanger
temperature sensor.

Is the measured resistance of the outdoor heat exchanger
temperature sensor matches the value specified in its
characteristic chart?

YES

Sensor (Thermistor)

Characteristics

Outdoor Air Sensor



Outdoor Heat Exchanger



Sensor





)

Resistance (K

70

60

50

40

30

20

No

No

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

Connector poor contact.
Correct the connection.

Defect in outdoor heat exchanger
temperature sensor.
Replace the outdoor heat exchanger
temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

10

0

14 50 68 86 104 12232

Temperature (°F)

45

12.4.10 H30 (Compressor Discharge Temperature Sensor Abnormality)

Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor discharge pipe temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor discharge pipe
temperature sensor.

Is the measured resistance of the outdoor discharge pipe
temperature sensor matches the value specified in its
characteristic chart?

YES

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

NO

NO

Connector poor contact.
Correct the connection.

Defect in outdoor discharge pipe
temperature sensor.
Replace the outdoor discharge pipe
temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

46

12.4.11 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality)

Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor discharge pipe temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor discharge pipe
temperature sensor.

Is the measured resistance of the outdoor heat exchanger
temperature sensor matches the value specified in its
characteristic chart?

YES

NO

NO

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

Connector poor contact.
Correct the connection.

Defect in outdoor discharge pipe
temperature sensor.
Replace the outdoor discharge pipe
temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

47

12.4.12 H33 (Unspecified Voltage between Indoor and Outdoor)

Malfunction Decision Conditions

 The supply power is detected for its requirement by the indoor/outdoor transmission.

Malfunction Caused

 Wrong models interconnected.
 Wrong indoor unit and outdoor unit PCBs used.
 Indoor unit or outdoor unit PCB defective.

Troubleshooting

When abnormality indication starts again.

Check indoor and outdoor units model number.

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

Is the indoor and outdoor unit model number matched?

Check indoor and outdoor PCB part number and compare if
they matched the part list.

NO

Change for the specified indoor or outdoor unit PCB.

NO

YES

● Match the compatible model (follow specification).

● Replace the indoor and outdoor unit PCB.

48

12.4.13 H34 (Outdoor Heat Sink Temperature Sensor Abnormality)

Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor heat sink

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor discharge pipe temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor discharge pipe
temperature sensor.

Is the measured resistance of the outdoor gas pipe
temperature sensor matches the value specified in its
characteristic chart?

YES

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

No

No

Connector poor contact.
Correct the connection.

Defect in outdoor heat exchanger
temperature sensor.
Replace the outdoor discharge pipe
temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

49

12.4.14 H36 (Outdoor Gas Pipe Sensor Abnormality)

Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor discharge pipe temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor discharge pipe
temperature sensor.

Is the measured resistance of the outdoor gas pipe
temperature sensor matches the value specified in its
characteristic chart?

YES

NO

NO

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

Connector poor contact.
Correct the connection.

Defect in outdoor discharge pipe
temperature sensor.
Replace the outdoor discharge pipe
temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

50

12.4.15 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality)

Malfunction Decision Conditions

 During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe

temperature sensor are used to determine sensor errors.

Malfunction Caused

 Faulty connector connection.
 Faulty sensor.
 Faulty PCB.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check the outdoor discharge pipe temperature sensor:

Plug out connector from the outdoor unit PCB.
Measure the resistance of the outdoor discharge pipe
temperature sensor.

Is the measured resistance of the outdoor liquid pipe
temperature sensor matches the value specified in its
characteristic chart?

YES

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

NO

NO

Connector poor contact.
Correct the connection.

Defect in outdoor discharge pipe
temperature sensor.
Replace the outdoor discharge pipe
temperature sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

51

12.4.16 H59 (Human Activity Sensor Abnormality)

Malfunction Decision Conditions

 Feedback signal of human activity sensor.

Malfunction Caused

 Feedback signal is fixed at 0 VDC or 5 VDC continuously for 25 seconds during ECONAVI or AUTO COMFORT

operation.

 Feedback signal is detected during ECONAVI or AUTO COMFORT off.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check if the feedback signal of human activity sensor
(pin 2 and 3) is normal.

When no motion, feedback is 0V.
When motion detected, feedback is between 1.5VDC
to 2.5VDC.

YES

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

NO

NO

Connector poor contact.
Correct the connection.

Defect in human activity sensor.
Replace the human activity sensor.

Defect in outdoor unit PCB.
Replace the outdoor unit PCB.

52

12.4.17 H70 (Light Sensor Abnormality)

Malfunction Decision Conditions

 Feedback signal of light sensor.

Malfunction Caused

 Feedback value is 0 VDC continuously.

Troubleshooting

When abnormality indication starts again.

Check the connector connection:

Turn off the power.
Check the connector connection.

Is the connector connection normal?

YES

Check if the feedback signal of sunlight sensor (pin 11 and 13)
is normal.

Depends on indoor light intensity, feedback voltage
= 0.06 ~ 4.8 VDC (from dim to bright).

YES

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

NO

NO

Connector poor contact.
Correct the connection.

Defect in sunlight sensor.
Replace the sinlight sensor.

Defect in indoor unit PCB.
Replace the indoor unit PCB.

53

12.4.18 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked)

Malfunction Decision Conditions

 The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor.

Malfunction Caused

 Operation stops due to short circuit inside the fan motor winding.
 Operation stops due to breaking of wire inside the fan motor.
 Operation stops due to breaking of fan motor lead wires.
 Operation stops due to Hall IC malfunction.
 Operation error due to faulty outdoor unit PCB.

Troubleshooting

When abnormality indication starts again.

For safety reason and to prevent
component breakdown, always switch

Turn off power supply and rotate fan by hand.

off the power before remove and
connect the component.

Does fan rotate smoothly?

YES

Turn power supply on and operate fan.

Does it rotate? Stop fan motor.

NO

Turn off power supply and disconnect fan motor connector,
then turn power on.

Check the output of fan motor from outdoor PCB.

Is the motor power supply voltage ~325Vdc (pin 7 & 4)
generated?

Is the motor control voltage 15Vdc (pin 3 & 4) generated?

Operate the fan, is the rotation command voltage 1~5Vdc (pin 2
& 4) generated?

NO

YES

NO

NO

NO

Replace fan motor.

Check the rotation feedback output from fan motor.

Rotate the fan motor by hand, is the rotation feedback
voltage 15 Vdc (pin 1 & 4) generated?

Replace outdoor PCB.

NO

YES

YES

Replace fan motor.

54

12.4.19 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED
flashing)

Malfunction Decision Conditions

 Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is

operating in heating operation.

 Phenomena: unit is stopping and re-starting very often in heating mode.

Malfunction Caused

 Indoor heat exchanger thermistor.
 Clogged air filter or heat exchanger.
 Over-bent pipe (liquid side).

Troubleshooting

When abnormality indication starts again.

Check the indoor unit intake air filter.

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

Is the air filter dirty?

NO

Check the dust accumulation on the indoor unit heat exchanger.

Is the indoor unit heat exchanger dirty?

NO

Check the indoor pipe temperature thermistor:

Plug out connector (CN-TH) from the indoor unit PCB.
Measure the resistance of the indoor heat exchanger
temperature thermistor.

Is the measured resistance of the indoor pipe temperature
thermistor matches the value specified in its characteristic
chart?

YES

YES

YES

NO

Clean the air filter.

Clean the indoor unit heat exchanger.

Defect in indoor pipe temperature
thermistor.
Replace the indoor pipe temperature
thermistor.

Check the piping & installation condition.
Replace piping / reinstall the unit if
necessary.

55

12.4.20 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry)

Error Code will not display (no Timer LED blinking) but store in EEPROM

Malfunction Decision Conditions

 Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C).

Malfunction Caused

 Air short circuit at indoor unit.
 Clogged indoor unit air filter.
 Dust accumulation on the indoor unit heat exchanger.
 2/3 way valve closed.
 Faulty indoor unit fan motor.
 Refrigerant shortage (refrigerant leakage).
 Clogged expansion valve or strainer.
 Faulty indoor pipe temperature sensor.
 Faulty indoor unit PCB.

Troubleshooting

When abnormality indication starts again.

For safety reason and to prevent
component breakdown, always switch

Check the air passage.

off the power before remove and
connect the component.

Is there any short circuit?

Check the indoor unit air filter.

Is the air filter dirty?

NO

Check the dust accumulation on the indoor unit heat
exchanger.

Is the indoor unit heat exchanger dirty?

NO

Check if 2/3 way valve is closed?

NO

Check if indoor fan motor operates normally?

YES

Check for gas leakage, Is oil oozing out from the 2/3 way
valve?

Check if expansion valve or strainer clogged (ice formed)?

NO

Check the indoor pipe temperature sensor.

YES

YES

YES

YES

NO

YES

YES

● Provide sufficient air passage.

● Clean the air filter.

● Clean the indoor unit heat exchanger.

● Open the 2/3 way valve.

● Replace the indoor unit fan motor and/or

indoor unit PCB.

● Repair the pipe flare or union nuts.

● Reclaim and recharge refrigerant.

● Reclaim and recharge with correct

amount of refrigerant.

Does it conform to the sensor characteristic chart?

YES

NO

● Replace the indoor pipe temperature
sensor.

● Replace the indoor unit PCB.

56

12.4.21 F11 (4-way Valve Switching Failure)

Malfunction Decision Conditions

 When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during

cooling and compressor operating, the 4-way valve is detected as malfunction.

Malfunction Caused

 Indoor heat exchanger (pipe) thermistor
 4-way valve malfunction

Troubleshooting

When abnormality starts again.

Check the indoor pipe temperature
thermistor:

● Plug out connector (CN-TH) from the
indoor unit PCB.

● Measure the resisitance of the indoor
heat exchanger temperature thermistor.

Is the measured resistance of the indoor pipe
temperature thermistor matches the value
specified in its characteristic chart?

YES

Problem occurs in heating mode only?

NO, it happen in cooling/dry as well.

Is 4-way solenoid valve being energised?

NO

The 4-way valve may have been damaged or
wrongly connected between discharge and
suction tube.

● Check connecting tubes to 4-way valve.

For safety reason and to prevent component
breakdown, always switch off the power before
remove and connect the component.

● Defect in indoor pipe temperature

NO

YES

thermistor.

● Replace the indoor pipe temperature
thermistor.

YES

Outdoor PCB fault

● Replace
Outdoor PCB.

4-way valve not working
(not energize).

Check CN-HOT
connection
(4-way valve connector).

OK

Check V-coil attach to
solenoid valve.

OK

Check valve v-coil
continuity.

OK

4 WAYS VALVE

No

Good.

No

Good.

No

continuity

(open).

Remove CN-HOT.
Measure continuity
of the coil.

YELLOW

YELLOW

COIL COMPLET E

● Reconnect CN-HOT
(4-way valve connector).

● Attach and screw the V-coil
to solenoid valve.

V-coil fault

● Replace
V-coil only.

1

CN-HOT

(WHT)

2

CN-HOT

(VH3-2)

1 2 3

4WAYS

VALVE

* Check gas side pipe – for hot gas flow in cooling mode

Measure voltage
supplied to CN-HOT at
the start of heating.

No supply.

Outdoor PCB fault

● Replace Outdoor PCB.

57

OK (Depending on 4-way valve model).

Reverse solenoid value faulty

● Replace the 4-way valve.

12.4.22 F17 (Indoor Standby Units Freezing Abnormality)

Malfunction Decision Conditions

 When the different between indoor intake air temperature and indoor pipe temperature is above 50°F or indoor

pipe temperature is below 30.2°F

Remark:

When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor
unit and H39 to other indoor unit(s).

Malfunction Caused

 Wrong wiring connection
 Faulty sensor
 Faulty expansion valve

Troubleshooting

When F17 indication happens.

Check the system wiring connection.

Is the wiring connection ok?

YES

Check the indoor intake air and indoor pipe temperature
sensors.

Does it conform to the sensor characteristic chart?

YES

Check the expansion valve.

Is the expansion valve ok?

NO

NO

NO

YES

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

Perform Auto Wiring to correct the wiring
connection.

Replace the indoor intake air or indoor
pipe temperature sensor.

Replace the solenoid coil or expansion
valve.

Replace outdoor unit PCB.

58

12.4.23 F90 (Power Factor Correction Protection)

Malfunction Decision Conditions

 To maintain DC voltage level supply to power transistor.
 To detect high DC voltage level after rectification.

Malfunction Caused

 During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at

the outdoor unit main PCB senses abnormal DC voltage level for power transistors.

 When DC voltage detected is LOW, transistor switching will turn ON by controller to push-up the DC level.
 When DC voltage detected is HIGH (391Vdc – 425Vdc), active LOW signal will send by the controller to turn OFF

relay RY-C.

Troubleshooting

When abnormality indication starts again.

Reset the error code and turn on the unit again.

Is AC power supply normal fluctuation?

YES

Verify PFC abnormality by measuring DC voltage between
DCP(+) and DCN(-) at the capacitor PCB.

Is the DC voltage between DCP(+) and DCN(-) normal?

NO (391.2Vdc ~ 425Vdc)

Confirm the DC voltage between CN-FM 1 and 4 when
compressor is running. Normal voltage range should be
between 265-325Vdc.

Is the DC voltage between CN-FM1 and 4 of the outdoor fan
motor normal?

Check the compressor winding resistance:

● Turn off the power and disconnect the harnesses U, V,
and W.

● Measure the winding resistance between U-V, V-W, and
W-U.

Are the compressor’s winding resistance (U-V, V-W, U-W)
uniform?

YES

NO

YES (~280Vdc)

NO

NO

● AC power supply abnormal surge.

● Defect in PFC circuitry.

● Replace the outdoor unit PCB.

● Defect in outdoor fan motor.

● Replace outdoor fan motor.

For safety reason and to prevent
component breakdown, always
switch off the power before remove
and connect the component.

● Defect in compressor.

● Replace compressor.

Check the reactor impedance.

Is the impedence of the reactor low?

YES

● Defect in reactor.

● Replace reactor.

59

12.4.24 F91 (Refrigeration Cycle Abnormality)

Malfunction Decision Conditions

 The input current is low while the compressor is running at higher than the setting frequency.

Malfunction Caused

 Lack of gas.
 3-way valve close.

Troubleshooting

When F91 indication happens.

Check 3 way valve.

For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.

3-way valve opened?

YES

Check for gas leaking source (Refer H16).

Gas leaking?

NO, gas amount is OK.

Check other parts in refrigeration cycles.

NO, closed.

YES

Open 3 way valve.

Check for gas leaking source;
Repair or replace defected part(s).
Re-claim and then re-charge the
right amount.

60

12.4.25 F93 (Compressor Rotation Failure)

Malfunction Decision Conditions

 A compressor rotation failure is detected by checking the compressor running condition through the position

detection circuit.

Malfunction Caused

 Compressor terminal disconnect.
 Faulty Outdoor PCB.
 Faulty compressor.

Troubleshooting

When F93 indication happens.

Check the U, V and W connector connection:

-TurnOFFthepower.

- Check the U, V and W connector connection at
outdoor PCB and compressor terminal.

For safety reason and to prevent
component breakdown, always
switch off the power before remove
and connect the component.

Is the connector connection normal?

YES

Disconnect the harnesses U, V and W from the
compressor terminal.

From the disconnected harnesses U, V and W,
correct them to the inverter checker. Turn ON the
power and operate the system. Check the inverter
checker 6 LEDs blinking condition.

Is the blinking of the 6 LEDs in same
sequence/condition.

YES

NO

NO

Connector poor contact.
Correct the connection.

IPM defective.
Replace outdoor unit PCB.

Replace compressor.

61

12.4.26 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry)

Malfunction Decision Conditions

 During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by

the outdoor unit heat exchanger thermistor.

Malfunction Caused

 Outdoor heat exchanger temperature rise due to short-circuit of hot discharge air flow.
 Outdoor heat exchanger temperature rise due to defective of outdoor fan motor.
 Outdoor heat exchanger temperature rise due to defective outdoor heat exchanger thermistor.
 Outdoor heat exchanger temperature rise due to defective of outdoor unit PCB.

Troubleshooting

When abnormality indication starts again.

Check the outdoor unit installation condition
(during cooling or soft dry operation).

● Reinstall the outdoor unit.

Is there any improper heat radiation?

NO

Reset the error code and turn on the unit
again.

YES

● Remove the obstacle(s).

● Clean the outdoor heat exchanger.

Is the outdoor fan motor operating?

YES

Check the outdoor heat exchanger
thermistor:

● Turn off the power and disconnect the
connector of outdoor heat exchanger
thermistor from the PCB.

● Measure the resistance of the outdoor
heat exchanger thermistor.

Is the measured resistance of the outdoor
heat exchanger thermistor matches the
value specified in its characteristic chart?

YES

Measure the AC/DC voltage between

NO

pins of connector CN-FM outdoor unit
PCB.

Is the voltage supplied to the outdoor
fan motor normal?

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

● Defect in outdoor heat exchanger

NO

thermistor.

● Replace the outdoor heat exchanger
thermistor.

● Defect in outdoor unit PCB.

● Replace the outdoor unit PCB.

NO (0V)

YES (240VAC / 265~326VDC)

● Defect in outdoor unit PCB.

● Replace the outdoor unit PCB.

● Defect in outdoor fan motor.

● Replace the outdoor fan motor.

62

12.4.27 F96 (IPM Overheating)

Malfunction Decision Conditions

 During operating of cooling and heating, when IPM temperature data (212°F) is detected by the IPM temperature

sensor.

Multi Models only

o Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated.
o Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (194°F) is

detected by the heat sink temperature sensor.

Malfunction Caused

 IPM overheats due to short circuit of hot discharge air flow.
 IPM overheats due to defective of outdoor fan motor.
 IPM overheats due to defective of internal circuitry of IPM.
 IPM overheats due to defective IPM temperature sensor.

Multi Models Only

o Compressor OL connector poor contact.
o Compressor OL faulty.

Troubleshooting

When F96 indication happens.

Check the outdoor unit installation
condition (during cooling or soft-dry
operation).

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Is there any improper heat radiation?

NO

Is outdoor fan motor operating?

YES

YES

NO

Reinstall the outdoor unit.
Remove the obstacle(s).
Clean the outdoor heat exchanger.

Replace the outdoor fan motor.

Defect in IPM.
Replace the outdoor unit PCB.

63

12.4.28 F97 (Compress or Overheating)

Malfunction Decision Conditions

 During operation of cooling and heating, when compressor tank temperature data (233.6°F) is detected by the

compressor tank temperature sensor.

Malfunction Caused

 Faulty compressor tank temperature sensor
 2/3 way valve closed
 Refrigerant shortage (refrigerant leakage)
 Faulty outdoor unit PCB
 Faulty compressor

Troubleshooting

When F97 indication happens.

Check the compressor tank temperature
sensor.

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Does it conform to the sensor
characteristic chart?

YES

2/3 way valve closed?

NO

Check for gas leakage.

Oil oozing out from the 2/3 way valve?

NO

Check if expansion valve or strainer
clogged (ice formed).

NO

Reclaim and recharge for a specified
amount of refrigerant.

Refrigerant cycle abnormality error again?

NO

NO

YES

YES

YES

YES

Replace the compressor tank
temperature sensor.

Open the 2/3 way valve.

Repair the pipe flare or union nuts.
Reclaim and recharge refrigerant.

Replace expansion valve and/or strainer.
Reclaim and recharge refrigerant.

Replace outdoor unit PCB.
Replace outdoor unit compressor.

Procedure complete.

64

12.4.29 F98 (Input Over Current Detection)

Malfunction Decision Conditions

 During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is

detected by checking the input current value being detected by current transformer (CT) with the compressor
running.

Malfunction Caused

 Excessive refrigerant.
 Faulty outdoor unit PCB.

Troubleshooting

When F98 indication happens.

Get restarted and measure the input
current.

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Input current > limit?

YES

Turn off power supply. Check the main
circuit electrolytic capacitor.

Normal?

NO

Check refrigerant amount.

NO

Excess refrigerant?

NO

NO

YES

YES

Replace the outdoor unit PCB.

Repair the pipe flare or union nuts.
Reclaim and recharge refrigerant.

Reclaim and recharge with correct
amount of refrigerant.

Replace outdoor unit PCB.
Replace outdoor unit compressor.

65

12.4.30 F99 (DC Peak Detection)

Malfunction Decision Conditions

During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal
DC Peak sensing circuitry.

Malfunction Caused

 DC current peak due to compressor failure.
 DC current peak due to defective power transistor(s).
 DC current peak due to defective outdoor unit PCB.
 DC current peak due to short circuit.

Troubleshooting

When abnormality indication starts again.

Reset the error code and turn on the unit
again.

Is there a sound when compressor starts?

YES

Is compressor vibration even?

YES

Is there no change even if all refrigerant
is discharged?

YES (Stops after 2, 3 seconds
of noise during operation)

Check the compressor winding resistance:

Turn off the power and disconnect
the harnesses U, V and W.
Measure the winding resistance
between U-V, V-W and W-U.

Are the compressor’s winding resistance
(U-V, V-W or U-W) shorted?

YES

NO (Compressor stops)

NO (Quite a lot of vibration at
start operation)

NO (Normal)

NO (Normal)

Outdoor electronic circuit defect due to
power transistor short.
Replace the outdoor unit PCB.

Amplification IC defect.
Diode defect.

Defect in microcontroller.
Replace the outdoor unit PCB.

Excessive amount of refrigerant.

For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.

Compressor defective due to
mechanical locked.
Replace compressor.

Compressor defective due to winding
shorted.
Replace compressor.

66

13. Disassembly and Assembly Instructions

High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with
repair work. Failure to heed this caution may result in electric shocks.

13.1 Indoor Electronic Controllers, Cross Flow Fan and Indoor Fan Motor
Removal Procedures

13.1.1 To remove front grille

2. Remove 2 caps and 2 screws at the
bottom of discharge vane.

WARNING

3. Hold both sides of the front grille and
remove it by pulling up and toward
yourself gently.

1. Lift t o open the vertical vane
gently.

Figure 1

13.1.2 To remove power electronic controller

2 Hooks (left hand side)

4. Remove the eco sensor complete by screw.

Figure 2

5. Remove the control
board c over by releasing
the 2 hooks.

67

9. Pull out the main
electronic c ontroller and
power electronic
controller halfway.

8. Remove screw to
remove terminal board
complete.

7. Detach the CN-DISP
connector then remove
the indicator complete.

6. Detach the Earth wire

10. D etach c onnectors as labeled fr om the
electronic c ontroller. Then pull out
main controller gently

Figure 3 Figure 4

13.1.3 To remove discharge grille

CN-FM

CN-CNT
CN-RMT

CN-STM1

CN-MSENS
CN-DISP
CN-TH

13.1.4 To remove control board

11. Pull out to remove t he drain hose

12. Then pull the discharge grille
downward gently to dis mantle it

Figure 5

from the discharge grille

13. Remove 4 screws holding the
control board then pull out the
control board.

Figure 6

68

13.1.5 To remove cross flow fan and indoor fan motor

Figure 7

16. Remove the bearing by pulling it
out gently

14. Remove the screw that holding
the cross f low f an and fan mot or
axis.

15. Remove the screw f rom t he
evaporator.

Figure 8

17. Push the holdfast to the left and lift up the evaporator.

Evaporator

Cr oss f low fan

18. Remove the cross flow fan from the unit by
pulling it to the left and downward.

Figure 9

19. Fan motor can be removed after the
removal of cross flow f an.

Reminder: T o reinstall the f an motor, adjust
the fan motor connector to 45° towards you
before fixing control board.

69

Cross Flow Fan

Reminder: To reinstall the cross flow
fan, ensure cross flow fan is in line as
shown in figure 10

Figure 10

70

14. Exploded View and Replacement Parts List

14.1 Indoor Unit

46 47 48

O/I

I/I I/I

40

45

CWH55025J

CWH55051J

4

17

20

18

54

37

41

42

22

21

38

3

44

5

8

9

39

2

1

7

6

16

10

12

25

34

14

15

24

43

11

13

27

23

28

29

30

35

Note
The above exploded view is for the purpose of parts disassembly and replacement.
The non-numbered parts are not kept as standard service parts.

49

36

55

33

26

71

SAFETY REF. NO. DESCRIPTION & NAME QTY CS-ME5RKUA REMARK

1 CHASSIS COMPLETE 1 CWD50C1633

2 FAN MOTOR 1 L6CBYYYL0055 O

3 CROSS FLOW FAN COMPLETE 1 CWH02C1076

4 BEARING 1 CWH64K007

5 SCREW 1 CWH551146

7 EVAPORATOR CO. 1 CWB30C3504

8 FLARE NUT (1/4) - LIQUID 1 CWT251030

9 FLARE NUT (3/8) - GAS 1 CWT251031

11 CONTROL BOARD CASING 1 CWH102605A

12 TERMINAL BOARD COMPLETE 1 CWA28C2357

13 ELECTRONIC CONTROLLER - MAIN 1 CWA73C9301 O

15 ELECTRONIC CONTROLER - INDICATOR 1 CWA748158 O

16 SENSOR COMPLETE 1 CWA50C2800 O

17 SENSOR COMPLETE (ECO) 1 CWA50C2820 O

18 ELECTRONIC CONT (ECO SENSOR) 1 CWA745791

20 ELECTRONIC CONT (COMPARATOR) 1 CWA746769

21 LEADWIRE-PCB ECO 1 CWA67C9786

23 CONTROL BOARD TOP COVER 1 CWH131467

24 INDICATOR HOLDER 1 CWD933406

25 CONTROL BOARD FRONT COVER CO. 1 CWH13C1333

26 DISCHARGE GRILLE COMPLETE 1 CWE20C3495

27 BACK COVER CHASSIS 1 CWD933233B

28 FULCRUM 1 CWH621131

29 VERTICAL VANE 8 CWE241374

30 CONNECTING BAR 1 CWE261251

33 AIR SWING MOTOR 1 CWA981264 O

34 CAP 1 CWH521096

35 HORIZONTAL VANE COMPLETE 1 CWE24C1385

36 REMOTE CONTROL COMPLETE 1 CWA75C4567 O

37 FRONT GRILLE COMPLETE 1 CWE11C5960 O

38 INTAKE GRILLE COMPLETE 1 CWE22C1946

39 GRILLE DOOR COMPLETE 1 CWE14C1131

40 AIR FILTER 2 CWD001279 O

41 SCREW-F/GRILLE MOUNT 2 XTT4+16CFJ

42 CAP-FRONT GRILLE 2 CWH521227

43 DRAIN HOSE 1 CWH851173

44 INSTALLATION PLATE 1 CWH361134

45 BAG COMPLETE - INSTALLATION SCREW 1 CWH82C1705

46 OPERATING INSTRUCTION 1 CWF569978

47 INSTALLATION INSTRUCTION 1 CWF616708

48 INSTALLATION INSTRUCTION 1 CWF616709

49 REMOTE CONTROL HOLDER 1 CWH361078

54 AIR PURIFYING FILTER 1 CWD00C1141

55 BAG COMPLETE (TUBE CONNECTOR) 1 CWH82C2030

(Note)

 All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).
 “O” marked parts are recommended to be kept in stock.

72

SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-ME7RKUA REMARK

1 CHASSIS COMPLETE 1 CWD50C1633

2 FAN MOTOR 1 L6CBYYYL0055 O

3 CROSS-FLOW FAN COMPLETE 1 CWH02C1076

4 BEARING ASSY 1 CWH64K007

5 SCREW - CROSS - FLOW FAN 1 CWH551146

6 PARTICULAR PIECE 1 CWD933067

7 EVAPORATOR 1 CWB30C5033

8 FLARE NUT (LIQUID) 1 CWT251030

9 FLARE NUT (GAS) 1 CWT251031

10 CLIP FOR SENSOR 1 CWH321085

11 CONTROL BOARD CASING 1 CWH102605A

12 TERMINAL BOARD COMPLETE 1 CWA28C2357 O

13 ELECTRONIC CONTROLLER - MAIN 1 CWA73C9225 O

14 PARTICULAR PIECE - TERMINAL 1 CWD933137A

15 ELECTRONIC CONTROLLER - INDICATOR 1 CWA748158 O

16 SENSOR COMPLETE 1 CWA50C3228 O

17 SENSOR COMPLETE (ECO) 1 CWA50C2820 O

18 ELECTRONIC CONTROLLER (ECO SENSOR) 1 CWA745791

20 ELECTRONIC CONTROLLER (COMPARATOR) 1 CWA746769

21 LEAD WIRE - PCB ECO 1 CWA67C9786

22 CONTROL BOARD CASING FOR PCB ECO 1 CWD933427

23 CONTROL BOARD TOP COVER 1 CWH131467

24 INDICATOR HOLDER 1 CWD933406

25 CONTROL BOARD FRONT COVER CO. 1 CWH13C1333

26 DISCHARGE GRILLE COMPLETE 1 CWE20C3495

27 BACK COVER CHASSIS 1 CWD933233B

28 FULCRUM 1 CWH621131

29 VERTICAL VANE 8 CWE241374

30 CONNECTING BAR 2 CWE261251

33 AIR SWING MOTOR 1 CWA981264

34 CAP - DRAIN TRAY 1 CWH521259

35 HORIZONTAL VANE COMPLETE 1 CWE24C1385

36 REMOTE CONTROL COMPLETE 1 CWA75C4567 O

37 FRONT GRILLE COMPLETE 1 CWE11C5960 O

38 INTAKE GRILLE COMPLETE 1 CWE22C1946

39 GRILLE DOOR COMPLETE 1 CWE14C1131

40 AIR FILTER 2 CWD001279 O

41 SCREW - FRONT GRILLE 2 XTT4+16CFJ

42 CAP - FRONT GRILLE 2 CWH521227

43 DRAIN HOSE 1 CWH851173

44 INSTALLATION PLATE 1 CWH361134

45 BAG COMPLETE - INSTALLATION SCREW 1 CWH82C1705

46 OPERATING INSTRUCTION 1 CWF569978

47 INSTALLATION INSTRUCTION 1 CWF616708

48 INSTALLATION INSTRUCTION 1 CWF616709

49 REMOTE CONTROL HOLDER 1 CWH361078

73

SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CS-ME7RKUA REMARK

54 AIR PURIFYING FILTER 1 CWD00C1141

55 BAG COMPLETE (TUBE CONNECTOR) 1 CWH82C2030

(Note)

 All parts are supplied from PHAAM, Malaysia (Vendor Code: 00029488).
 “O” marked parts are recommended to be kept in stock.

Printed in Malaysia

FB0315-0

74