Mitsubishi Electric PCA-A24KA, PCA-A30KA, PCA-A36KA, PCA-A42KA Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS

SERVICE MANUAL

Indoor unit
[Model names] [Service Ref.]

PCA-A24KA

PCA-A30KA

PCA-A36KA

PCA-A24KA
PCA-A30KA
PCA-A36KA

March 2009

No. OCH455

NOTE:

• This manual describes only
service data of the indoor
units.

• RoHS compliant products
have <G> mark on the
spec name plate.

PCA-A42KA

INDOOR UNIT

PCA-A42KA

Model name
indication

CONTENTS

1. REFERENCE MANUAL

2. SAFETY PRECAUTION

3. PART NAMES AND FUNCTIONS

4. SPECIFICATIONS

5. NOISE CRITERION CURVES

6. OUTLINES AND DIMENSIONS

7. WIRING DIAGRAM

8. REFRIGERANT SYSTEM DIAGRA

9. TROUBLESHOOTING

10. SPECIAL FUNCTION

11. DISASSEMBLY PROCEDURE

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12

13

11

28

31

2
3

4
6
8

9

TEMP.

REMOTE CONTROLLER

ON/OFF

PARTS CATALOG (OCB455)

1

REFERENCE MANUAL

1-1. OUTDOOR UNIT’S SERVICE MANUAL

Model name Service Ref. Service Manual No.
PUZ-A18/24/30/36/42NHA3 PUZ-A18/24/30/36/42NHA3

PUZ-A18/24/30/36/42NHA3-BS PUZ-A18/24/30/36/42NHA3-BS
PUY-A18/24/30/36/42NHA3 PUY-A18/24/30/36/42NHA3
PUY-A18/24/30/36/42NHA3-BS PUY-A18/24/30/36/42NHA3-BS
PUZ-HA30/36NHA2 PUZ-HA30/36NHA2 OCH426 OCB426

OCH
OCB

1-2. TECHNICAL DATA BOOK

Series (Outdoor unit) Manual No.
PUZ-A•NHA3(-BS) PUY-A•NHA3(-BS) OCS14

PUZ-HA•NHA2 OCS15

2

2

SAFETY PRECAUTION

2-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminal, all supply
circuits must be disconnected.

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilising refrigerant R410A

Use new refrigerant pipes.

Make sure that the inside and outside of refrige­rant piping is clean and it has no contamination
such as sulfur hazardous for use, oxides, dirt,
shaving particles, etc.
In addition, use pipes with specified thickness.

Contamination inside refrigerant piping can cause deterio­ration of refrigerant oil etc.

Store the piping to be used indoors during
installation, and keep both ends of the piping
sealed until just before brazing. (Leave elbow
joints, etc. in their packaging.)

If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com­pressor.

Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.

If large amount of mineral oil enters, that can cause deterio­ration of refrigerant oil etc.

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrige­rant can cause deterioration of refrigerant oil etc.

Use a vacuum pump with a reverse flow check
valve.

Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.

Use the following tools specifically designed for
use with R410A refrigerant.

The following tools are necessary to use R410A refrigerant.

Tools for R410A
Gauge manifold
Charge hose

Gas leak detector

Torque wrench

Flare tool
Size adjustment gauge
Vacuum pump adaptor

Electronic refrigerant
charging scale

Handle tools with care.

If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com­pressor.

Charge refrigerant from liquid phase of gas
cylinder.

If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.

[1] Cautions for service

(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigera­nt will change and the efficiency will be lowered.

Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.

3

[2] Additional refrigerant charge

When charging directly from cylinder

· Check that cylinder for R410A on the market is syphon type.

· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

Unit

Gravimeter

[3] Service tools

Use the below service tools as exclusive tools for R407C refrigerant.

No. Tool name Specifications
1 Gauge manifold · Only for R410A

· Use the existing fitting

· Use high-tension side pressure of 5.3MPa·G or over.
2 Charge hose · Only for R410A

· Use pressure performance of 5.09MPa·G or over.
3 Electronic scale
4 Gas leak detector · Use the detector for R134a, R407C or R410A.
5 Adaptor for reverse flow check · Attach on vacuum pump.
6 Refrigerant charge base
7 Refrigerant cylinder · Only for R410A Top of cylinder (Pink)

· Cylinder with syphon
8 Refrigerant recovery equipment

specifications

. (UNF1/2)

3

PART NAMES AND FUNCTIONS

Indoor Unit

Vane

Air outlet

Louver

Filter

Air intake

(Inside of Air intake)

4

Wired remote controller

Display Section

For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.

Identifies the current operation

Shows the operating mode, etc.
*Multilanguage display is available.

“Centrally Controlled” indicator

Indicates that operation from the
remote controller has been prohib­ited by a master controller.

“Timer is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Day-of-Week

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, the time to be
switched off is shown.

TIME SUN MON TUE WED THU FRI SAT
TIMER

AFTER

ERROR CODE

°F°C

Hr

AFTER

°F°C

ONLY1Hr.

Up/Down Air Direction indica­tor

The indicator shows the direc­tion of the outcoming airflow.

“One Hour Only” indicator

Displayed if the airflow is set to
Low or downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off in one hour,
at which time the airflow direction
also changes.

Room Temperature display

Shows the room temperature. The room
temperature display range is 46-102°F.
The display blinks if the temperature
is less than 46°F or 102°F or more.

Louver display

Indicates the action of the swing louver.
Does not appear if the louver is not
running.

(Power On indicator)

Indicates that the power is on.

ON

OFF

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

“Sensor” indication

Displayed when the remote controller
sensor is used.

“Locked” indicator

Indicates that remote controller but­tons have been locked.

“Clean The Filter” indicator

To be displayed on when it is time to
clean the filter.

Timer indicators

The indicator comes on if the corre­sponding timer is set.

Fan Speed indicator

Shows the selected fan speed.

Ventilation indicator

Appears when the unit is running in
Ventilation mode.

Operation Section

Temperature setting buttons

Down

Up

Timer Menu button
(Monitor/Set button)

Mode button (Return button)

Set Time buttons

Back

Ahead

Timer On/Off button
(Set Day button)

Opening the
lid

Note:

●

“PLEASE WAIT” message

TEMP.

MENU

BACK DAY

MONITOR/SET

PAR-21MAA

CLOCK

ON/OFF

OPERATION

ON/OFF

FILTER

CHECK

TEST

CLEAR

Built-in temperature sensor

This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure.

●

“NOT AVAILABLE” message
This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have).
If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as
far as any of the indoor units is equipped with the function.

ON/OFF button

Fan Speed button

Filter button
(<Enter> button)

Test Run button

Check button (Clear button)

Airflow Up/Down button

Louver button
( Operation button)

To return operation
number

Ventilation button
( Operation button)

To go to next operation
number

5

4

SPECIFICATIONS

4-1. SPECIFICATIONS

Service Ref.

Power supply(phase, cycle, voltage)

External finish
Heat exchanger
Fan Fan(drive) % No.

INDOOR UNIT

Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Field drain pipe O.D.
Dimensions

Weight

Service Ref.

Power supply(phase, cycle, voltage)

External finish
Heat exchanger
Fan Fan(drive) % No.

INDOOR UNIT

Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Field drain pipe O.D.
Dimensions

Weight

Max. Fuse Size
Min.Circuit Ampacity

Fan motor output
Fan motor

Airflow(Low-Medium2-Medium1-High)

External static pressure

W

D
H

Max. Fuse Size
Min.Circuit Ampacity

Fan motor output
Fan motor

Airflow(Low-Medium2-Medium1-High)

External static pressure

W

D
H

A
A

kW

F.L.A

3

/min(CFM)

m

Pa(mmAq)

dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)

kg(lbs)

A

A

kW

F.L.A

*/min(CFM)

Pa(mmAq)

dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)

kg(lbs)

PCA-A24KA

1 phase, 60Hz, 208/230V

15

1

White Munsell 6.4Y 8.9/0.4

Plate fin coil

Sirocco fan (direct) % 3

0.095

0.54

Dry: 15-16-17-19(530-565-600-670)

Wet: 14-15-16-18(495-530-565-635)

0(direct blow)

Remote controller & built-in

33-35-37-40

26(1-1/32)

1,280(50-3/8)

680(26-3/4)

230(9-1/16)

32(71)

PCA-A30KA

1 phase, 60Hz, 208/230V

15

1

White Munsell 6.4Y 8.9/0.4

Plate fin coil

Sirocco fan (direct) % 3

0.095

0.54
Dry: 16-17-18-20(565-600-635-705)
Wet:15-16-17-19(530-565-600-670)

0(direct blow)

Remote controller & built-in

35-37-39-41

26(1-1/32)

1,280(50-3/8)

680(26-3/4)

230(9-1/16)

32(71)

Service Ref.

Power supply(phase, cycle, voltage)

External finish
Heat exchanger
Fan Fan(drive) % No.

INDOOR UNIT

Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Field drain pipe O.D.
Dimensions

Weight

Max. Fuse Size
Min.Circuit Ampacity

Fan motor output
Fan motor

Airflow(Low-Medium2-Medium1-High)

External static pressure

*/min(CFM)

Pa(mmAq)

W

D
H

A
A

kW

F.L.A

dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)

kg(lbs)

PCA-A36KA

1 phase, 60Hz, 208/230V

15

2

White Munsell 6.4Y 8.9/0.4

Plate fin coil

Sirocco fan (direct) % 4

0.160

0.97
Dry: 22-24-26-28(775-850-920-990)
Wet:20-22-24-26(705-775-850-920)

0(direct blow)

Remote controller & built-in

37-39-41-43

26(1-1/32)

1,600(63)
680(26-3/4)
230(9-1/16)

36(79)

66

Service Ref.

Power supply(phase, cycle, voltage)

External finish
Heat exchanger
Fan Fan(drive) % No.

INDOOR UNIT

Operation control & Thermostat
Noise level(Low-Medium2-Medium1-High)
Field drain pipe O.D.
Dimensions

Weight

Max. Fuse Size
Min.Circuit Ampacity

Fan motor output
Fan motor

Airflow(Low-Medium2-Medium1-High)

External static pressure

W

D
H

A
A

kW

F.L.A

*/min(CFM)

Pa(mmAq)

dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)

kg(lbs)

PCA-A42KA

1 phase, 60Hz, 208/230V

15

2

White Munsell 6.4Y 8.9/0.4

Plate fin coil

Sirocco fan (direct) % 4

0.160

0.97
Dry: 23-25-27-29(810-885-955-1025)
Wet: 21-23-25-27(740-810-885-955)

0(direct blow)

Remote controller & built-in

39-41-43-45

26(1-1/32)

1,600(63)
680(26-3/4)
230(9-1/16)

38(84)

77

NOISE CRITERION CURVES5

NOTCH

PCA-A24KA PCA-A30KA

SPL(dB)

High
Medium1
Medium2

Low

90

80

70

60

50

40

30

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)

PCA-A36KA

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NOTCH

High

SPL(dB)

Medium1
Medium2

Low

90

LINE
40
37
35
33

90

80

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

10

63 125 250 500 1000 2000 4000 8000

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

LINE

43

PCA-A42KA

41
39
37

90

NOTCH

High
Medium1
Medium2

Low

BAND CENTER FREQUENCIES, Hz

NOTCH

High
Medium1
Medium2

Low

SPL(dB)

41
39
37
35

SPL(dB)

45
43
41
39

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

LINE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

3.3ft

3.3ft
about 4.62ft

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 bar)

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

ceiling

unit

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

MICROPHONE

8

OUTLINES AND DIMENTIONS6

PCA-A24KA PCA-A30KA Unit: inch (mm)

Drainage

liquid Φ3/8(Φ9.52)

gas Φ5/8(Φ15.88)

When drain socket

is installed

9-5/16(236)

7-7/8(200)

9-3/16(233)

9-11/16(246)

7-1/16(180)

Emergency operation

switch <Heating>

DEFROST/STAND BY lamp

Operation lamp

Receiver

In case of wireless remote controller

and i-see sensor(Optional Parts)

Emergency operation

switch <Cooling>

2-1/4(57)

i-see sensor

NOTES.

1.Use M10 or W3/8 screw for anchor bolt.

2.Please be sure when installing the drain lift up

mechanism(option parts),refrigerant pipe will be only upward.

26-3/4(680)

18-3/4(476)

10(254)

6

2-7/16(62)

3-1/8(80)

12-5/8(320)

26-3/4(680)

2(51)

3/8(10)

3/16(5)

14

9/16

In case of wireless

remote controller

and i-see sensor

9-1/16(230)

7-11/16(195)

3-7/16(88)

3-5/16(84)

(Optional Parts)

3-3/8(85)

5-1/2(140)

11/16(18)

5-7/8(150)

48-11/16(1237) (Suspension bolt pitch)

46-3/16(1173)

7-3/16(182)

47-3/16(1198)

Air outlet

4-15/16(126)

1/16(1)

7-1/12(190)

1-7/16(37)

1/16(2) 1/16(2)50-3/8(1280)

Air intake

4

3-3/8(85)

10-1/4(260)

1/16(2)

3-3/8(86)

120°

Ceiling

3(76)

5-7/16(138)

11/16(18)

1-1/2(38)

Φ4-15/16(Φ125)

4-3/4(121)

4-7/8(124)

15-1/4(387)

7

7

8

8

18-1/8(461)

In case of the rear pipe arrangement, make sure to

remove the shaded portions from the independent piece.

Then put the independent piece back in initial

1-7/8(48)5/16(8)

position.(The heat exchanger might be clogged because of dust)

When drain socket

2

Drainage

is installed

9-11/16(246)

9-3/16(233)

1

5

[FRONT VIEW]

3

Electrical box

7-1/2(190)

2-15/16(75)

2

When electrical box

is pulled down

1-13/16(46)

Electrical box

9

Drainage pipe connection(1(26mm)I.D.)

Drainage pipe connection(for the left arrangement)

Knockout hole for left drain-piping arrangement

Refrigerant-pipe connection(gas pipe side/flared connection)

Refrigerant-pipe connection(liquid pipe side/flared connection)

Knockout hole for upper drain pipe arrangement

Knockout hole for fresh air intake Φ3-15/16(Φ100)

Knockout hole for wiring arrangement Φ7/8(Φ22)

3

214

5

6

Accessory...Drain socket (1(26mm) I.D.)

8

7

PCA-A36KA PCA-A42KA Unit: inch (mm)

Drainage

When drain socket

is installed

gas Φ5/8(Φ15.88)

liquid Φ3/8(Φ9.52)

9-5/16(236)

9-3/16(233)

7-7/8(200)

7-1/16(180)

2(51)

3/8(10)

80

3-1/8

62

2-7/165-1/2

6

26-3/4(680)

12-5/8(320)

3/16(5)

1/16(2)

9-1/16(230)

9-11/16(246)

14

9/16

In case of wireless

remote controller

and i-see sensor

(Optional Parts)

7-11/16(195)

3-7/16(88)

3-5/16(84)

85

Emergency operation

switch <Heating>

DEFROST/STAND BY lamp

Operation lamp

Receiver

In case of wireless remote controller

and i-see sensor(Optional Parts)

Emergency operation

switch <Cooling>

57

2-1/4

26-3/4(680)

18-3/4(476)

10(254)

Air intake

140

11/16(18)

5-7/8(150)

61-5/16(1557) (Suspension bolt pitch)

NOTES.

1.Use M10 or W3/8 screw for anchor bolt.

2.Please be sure when installing the drain lift up

mechanism (option parts),refrigerant pipe will be only upward.

4-15/16(126)

1/16(1)

4

3-3/8(85)

10-1/4(260)

1/16(2)

3-3/8(86)

1

1

5

120°

7-1/2(190)

5-7/16(138)

11/16(18)

1-7/16(37)

1-1/2(38)

15/16(Φ125)

Φ4-

4-3/4(121)

15-1/4(387)

7

8

18-1/8(461)

Ceiling

3(76)

[FRONT VIEW]

4-7/8(124)

In case of the rear pipe arrangement, make sure to

remove the shaded portions from the independent piece.

Then put the independent piece back in initial

position.(The heat exchanger might be clogged because of dust)

58-3/4(1493)

1/16(2) 63(1600)

Electrical box

1-7/8(48)5/16(8)

Air outlet

Drainage

When drain socket

is installed

9-11/16(246)

9-3/16(233)

2

182

7-3/16 3-3/8

59-3/4(1518)

Knockout hole for upper drain pipe arrangement

Knockout hole for fresh air intake Φ3-15/16(Φ100)

Knockout hole for wiring arrangement Φ7/8(Φ22)

Drainage pipe connection(1(26mm)I.D.)

Drainage pipe connection(for the left arrangement)

Knockout hole for left drain-piping arrangement

Refrigerant-pipe connection

(gas pipe side/flared connection)

Refrigerant-pipe connection

(liquid pipe side/flared connection)

5

4

3

2

11

Accessory...Drain socket (1(26mm)I.D.)

8

7

6

Electrical box

2-15/16(75)

2-15/16(75)

3

7-1/2(190)

1-13/16(46)

When electrical box

is pulled down

2

10

WIRING DIAGRAM7

PCA-A24KA PCA-A30KA PCA-A36KA PCA-A42KA

[LEGEND]

SYMBOL SYMBOLNAME NAME

I.B

CN2L
CN24
CN30
CN32
CN41
CN51
DSA
FUSE
LED1
LED2
LED3
SW1
SW2
SWE
X1

ZNR01,02
R.B
MF
MV

INDOOR CONTROLLER BOARD
CONNECTOR (LOSSNAY)
CONNECTOR (BACK-UP HEATING)
CONNECTOR (LLC)
CONNECTOR (REMOTE SWITCH)
CONNECTOR (HA TERMINAL-A)
CONNECTOR (CENTRALLY CONTROL)
SURGE ABSORBER
FUSE (T6.3AL250V)
POWER SUPPLY (I.B)
POWER SUPPLY (R.B)
TRANSMISSION (INDOOR-OUTDOOR)
SWITCH (MODEL SELECTION) +See table 1
SWITCH (CAPACITY CODE) +See table 2
CONNECTOR (EMERGENCY OPERATION)
RELAY (DRAIN LIFT UP MECHANISM)
VAR IST OR
WIRED REMOTE CONTROLLER BOARD

FAN MOTOR
VANE MOTOR

TB4
TB5,TB6

TH1

TH2

TH5

OPTIONAL PARTS

W.B

BZ
LED1
LED2
RU
SW1
SW2

DP

FS

TERMINAL BLOCK (

INDOOR/OUTDOOR CONNECTING LINE
TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)

ROOM TEMP. THERMISTOR
(32ºF / 15kΩ, 77ºF/ 5. 4kΩ DETECT)
PIPE TEMP. THERMISTOR/LIQUID
(32ºF / 15kΩ, 77ºF/ 5. 4kΩ DETECT)
COND. / EVA. TEMP. THERMISTOR
(32ºF / 15kΩ, 77ºF/ 5. 4kΩ DETECT)

PCB FOR WIRELESS REMOTE CONTROLLER
BUZZER
LED (OPERATION INDICATION : GREEN)
LED (PREPARATION FOR HEATING : ORANGE)
RECEIVING UNIT
EMERGENCY OPERATION (HEAT / DOWN)
EMERGENCY OPERATION (COOL / UP)
DRAIN LIFT UP MECHANISM
DRAIN FLOAT SWITCH

)

I.B

VAN E

CNV

20

(WHT)

12345678910111213141516171819

I-SEE

WIRELESS

CN90

(WHT)

19

9

CNB

5

M

MV

W.B

(OPTIONAL PARTS)

<Table 2>SW2(CAPACITY CODE)

MODELS

PCA-A24KA

PCA-A30KA

BZ

SW1

LED2

SW2

LED1

RU

Service Service

12345

12345

SENSOR

CN4Y

(WHT)

141 6

4

I-SEE

SENSOR

I-SEE SENSOR

(OPTIONAL PARTS)

SW2

MODELS

PCA-A36KA

ON
OFF

PCA-A42KA

ON
OFF

LED3 LED2 LED1

I-SEE

SENSOR MOTOR

CN6Y
(RED)

5

When attaching

M

drain lift up

MT

mechanism
(optional parts),
remove the jumper
connector CN4F
and fit the drain
float switch (FS).

12345

ON
OFF

12345

ON
OFF

Refer to tables 1 and 2

2

1

TB6

R.B

SW2SW1

J42J41

Pair No.

51

CN2L

21

(RED)

FLOAT SW

CN4F

(WHT)

ON OFF

4

When attaching
drain lift up
mechanism
(optional parts)

FLOAT SW

CN4F

(WHT)

TB5

TRANSMISSION
WIRES
DC12V

CN32

(WHT)

113

CN51(WHT)

CN41(WHT)

SWE

CN24

(YLW)

41

14

FS

2
1

INDOOR/OUTDOOR

COMMUNICATION

12

21

REMOCON

CN22

(BLU)

LIQUID/PIPE

CN44
(WHT)

14

t° t° t°

TH2 TH5 TH1

<Table 1>SW1(MODEL SELECTION)

SW1

Service

12345

ON
OFF

OUTDOOR

135

CN01

ZNR02

FAN
CNMF
(WHT

)

MS

3~

MF

(OPTIONAL PARTS)

(BLK)

DSA

U

331

M

1~

DP

U

ZNR01

X1

D.U.M

CNP

(BLU)

FUSE

YLW

ORN

ORN
BRN

YLW
ORN

TB4

+

S1
S2
S3

3

1

CN3C

(BLU)

DC294~325V

RECTIFICATION

INTAKE

CN30

CN20

(GRN)

(RED)

1

21

741

+

Be sure to turn off the source power
and then disconnect fan motor connector.
(Failure to do so will cause trouble in Fan motor)

1

TO OUTDOOR
UNIT

1.SymboIs used in wiring diagram above are, : Connector, : Terminal block.

Notes:

2.

Indoor and outdoor connecting wires have poIarities, make sure to match terminal numbers (S1, S2, S3) for correct wirings.

3.Since the outdoor side electric wiring may change, be sure to check the outdoor unit electric wiring for servicing.

+

1: Use copper supply wire.

11