Panasonic CW-C180BN User manual

CONTENTS

• PRODUCT SPECIFICATIONS ................................................................................................1

• DIMENSIONS ..........................................................................................................................2

• WIRING DIAGRAM............................................................................................................3 ~ 4

• REFRIGERATION CYCLE DIAGRAM.....................................................................................5

• AIR CONDITIONER PERFORMANCE EVALUATION............................................................5

• HOW TO INSTALL.............................................................................................................6 ~ 7

• HOW TO OPERATE..........................................................................................................8 ~ 9

• TROUBLESHOOTING GUIDE ..............................................................................................10

• CARE AND MAINTENANCE .................................................................................................11

• TECHNICAL DATA...............................................................................................................12

• EXPLODED VIEW .........................................................................................................13 ~ 14

• REPLACEMENT PARTS LIST ..............................................................................................15

• ELECTRONIC CIRCUIT DIAGRAM ......................................................................................16

ORDER NO. MAC9604015C3

Panasonic

CW-C180BN

CW-A180BN

ServiceManual

Room Air Conditioners

MODELS : CW-C180BN, CW-C240SN,

CW-A180BN, CW-A240SN.

distribution is a violation of law.

CW-C240SN

CW-A240SN

CW-C180BN

– 1 –

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 product or products dealt with in this service information by anyone else could result in serious injury

or death.

PRODUCT SPECIFICATIONS

MODELS CW-C180BN CW-C240SN CW-A180BN CW-A240SN

COOLING HEATING COOLING HEATING

CAPACITY (Btu/h) 17,900 –17,700 22,700 –22,510 15,690 –15, 510 15,340 –14,830 21,140 –20,630 20,800 –19,780

(W) 5,250 –5,200 6,650 –6,600 4,600 –4,550 4,500 –4,350 6,200 –6,050 6,100 –5,800

MOISTURE REMOVAL (s/h) 2.9 4.0 2.5 –– 3.4 ––

(Pints/h) 6.1 8.5 5.3 7.2

AIR CIRCULATION (m3/min) 14.0 17.0 14.0 16.0

(Cft/min) 490 600 490 560

COMPRESSOR OUTPUT (W) 1,700 2,200 1,700 2,200

ELECTRICAL Phase Single

DATA Cycle (Hz) 50

Voltage (V) 240 –220

Running

Current (A) 11.6 –11.2 15.2 –15.4 11.7 –11.0 9.9 –8.9 14.8 –14.6 13.6 –12.8

Starting

Current (A) 50 60 50 60

Input (W) 2,360 –2,230 3,100 –3,050 2,450 –2,300 1,950 –1,700 3,150 –3,050 2,800 –2,650

CABINET Height (mm) 16 –7/8" (428) 16 –7/8" (428) 16 –7/8" (428) 16 –7/8" (428)

DIMENSIONS Width (mm) 26" (660) 26" (660) 26" (660) 26" (660)

Depth (mm) 25 –7/32" (640) 28 –3/4" (730) 25 –7/32" (640) 28 –3/4" (730)

NET WEIGHT (kg) 59 72 59 74

(Ibs) 130 160 130 164

REFRIGERANT (R-22) (g) 980 1,350 1,090 1,030

(oz) 34.6 47.7 38.5 36.4

NOISE LEVEL High Indoor dB (A) 52 –51 58 –57 52 –51 52 –51 58 –58 ––

Outdoor dB (A) 60 - 59 67 –66 60 –59 61 –60 68 –69 ––

Low Indoor dB (A) 49 –48 54 –53 49 –48 48 –47 54 –54 ––

Outdoor dB (A) 56 –55 66 –63 57 –56 59 –58 65 –65 ––

* Specifications are subject to change without notice for further improvement.

All illustration shown inside caters for models CW-C180BN, CW-A180BN unless stated otherwise

CW-C180BN

–2 –

Panasonic

DIMENSIONS

CW-C180BN

CW-A180BN

CW-C240SN

CW-A240SN

FRONT VIEW

TOP VIEW

13-25/32"

(350)

SIDE VIEW

GGH

ITEM CW-C240SN, CW-A240SN

AWidth 26" (660)

BHeight 16 –7/8" (428)

CDepth 28 –25/32" (730)

D26 –25/32" (680)

E1 –31/32" (50)

F11 –13/16" (300)

G2 –3/64" (75)

I3/64" (15)

J10 –13/16" (288)

K15 –11/32" (389.6)

L12 –17/32" (318)

M3 –5/32" (80)

N3 –35/64" (90)

ITEM CW-C180BN, CW-A180BN

AWidth 26" (660)

BHeight 16 –7/8" (428)

CDepth 25 –7/32" (640)

D23 –7/32" (590)

E1 –31/32" (50)

F10 –15/16" (220)

G3 –11/32" (92)

H3 –1/32" (77)

I15 –32" (12)

J10 –15/16" (278)

K1 –1/16" (27)

L12 –17/32" (318)

M3 –5/32" (80)

N3 –35/64" (90)

Unit : (mm)

B13-25/32"

(350)

2-3/32"

(53)

FRONT VIEW SIDE VIEW

TOP VIEW

FGG

2-3/32"

(53)

CW-C180BN

–3 –

CW-C180BN

WIRING DIAGRAM

CW-C180BN

CW-C240SN

Connection CWA92125

BLUE–YELLOW 18.8Ω

YELLOW–ORANGE 6.25Ω

RED–YELLOW 51.5Ω

CWA31244

CAPACITOR 3µF, 400VAC

Resistance of Fan Motor windings and rated Capacitor

CW-C240SN

Connection 2JS442D4AA01

C-R 0.95Ω

C-S 4.39Ω

CAPACITOR CWA31338

45µF, 370VAC

* Resistance at 20°C of Ambient Temp.

Resistance of Compressor windings and rated Capacitor

CW-C180BN

Connection CWA95263

BLUE–YELLOW 47.9Ω

YELLOW–ORANGE 25.2Ω

RED–YELLOW 103.3Ω

CWA31357

CAPACITOR 3.5µF, 450VAC

Resistance of Fan Motor windings and rated Capacitor

CW-C180BN

Connection 2JS350D6BA02

C-R 0.95Ω

C-S 4.18Ω

CAPACITOR CWA31504

35µF, 370VAC

* Resistance at 20°C of Ambient Temp.

Resistance of Compressor windings and rated Capacitor

POWER SUPPLY CORD

POWER

SUPPLY

CORD

1ø, 240–220V, 50Hz

1ø,

240–220V,

50Hz

CAPACITOR

MAIN SWITCH

MAIN

SWITCH

BROWN

AIR SWING

SELECT SWITCH

AIR SWING MOTOR

BLUE

RED

WHITE

BLACK

WHITE

YELLOW

YELLOW/GREEN

YELLOW

BLUE

BLACK

ORANGE

FAN MOTOR

COMPRESSOR

THERMOSTAT

RED (RED)

BLUE (BLU)

YELLOW (YEL)

TRADE MARK

THE PARENTHESIZED LETTER IS

INDICATED ON TERMINAL COVER.

COMPRESSOR TERMINAL

FUSE (5A)

CAPACITOR

LOW

FAN

HIGH

FAN

HIGH

COOL

LOW

COOL

OFF

POWER SUPPLY CORD

POWER

SUPPLY

CORD

1ø, 240–220V, 50Hz

1ø,

240–220V,

50Hz

CAPACITOR

MAIN SWITCH

MAIN

SWITCH

BROWN

AIR SWING

SELECT SWITCH

AIR SWING MOTOR

BLUE

YELLOW/GREEN

BLUE

RED

WHITE

BLACK

WHITE

YELLOW

YELLOW/GREEN

YELLOW

BLUE

BLACK

ORANGE

FAN MOTOR

COMPRESSOR

THERMOSTAT

(TEMP. CONTROL)

(TEMP.

CONTROL)

THERMOSTAT

(LOW TEMP.)

(LOW

TEMP.)

RED (RED)

BLUE (BLU)

YELLOW (YEL)

TRADE MARK

THE PARENTHESIZED LETTER IS

INDICATED ON TERMINAL COVER.

COMPRESSOR TERMINAL

FUSE (5A)

LOW

FAN

HIGH

FAN

HIGH

COOL

LOW

COOL

OFF

CW-C240SN

CW-C180BN

–4 –

RED (RED)

BLUE (BLU)

YELLOW (YEL)

TRADE MARK

THE PARENTHESIZED LETTER IS

INDICATED ON TERMINAL COVER.

COMPRESSOR TERMINAL

POWER SUPPLY CORD

POWER

SUPPLY

CORD

1ø, 240–220V, 50Hz

1ø,

240–220V,

50Hz

MAIN SWITCH

MAIN

SWITCH

BROWN

BLACK

YELLOW

YELLOW/GREEN

BLACK

BLUE

BLACK

RED

YELLOW

YELLOW/GREEN

ORANGE

AIR SWING

SELECT

SWITCH

AIR SWING

MOTOR

BLACK

BLUE

RED

BLUE

RED

GRAY

FAN

MOTOR

FUSE

(5A)

B A

CAPACITOR

COMPRESSOR

THERMOSTAT

COIL-REVERSING

VALVE

ELECTRIC DEICER

ELECTRIC

DEICER

ZNR

Ry –D

COM

OFF

LOW

HIGH

COOL

HEAT

LOW

FAN

CW-A180BN

Connection CWA95263

BLUE–YELLOW 47.9Ω

YELLOW–ORANGE 25.2Ω

RED–YELLOW 103.3Ω

CWA31357

CAPACITOR 3.5µF, 450VAC

CW-A180BN

Connection 2JS356D6DA01

C-R 0.86Ω

C-S 3.45Ω

CAPACITOR CWA31506

45µF, 370VAC

* Resistance at 20°C of Ambient Temp.

Resistance of Fan Motor windings and rated Capacitor

Resistance of Compressor windings and rated Capacitor

CW-A240SN

Connection CWA92125

BLUE–YELLOW 18.8Ω

YELLOW–ORANGE 6.3Ω

RED–YELLOW 51.5Ω

CWA31244

CAPACITOR 3µF, 400VAC

CW-A240SN

Connection 2JS442D4AA01

C-R 0.95Ω

C-S 4.39Ω

CAPACITOR CWA31506

45µF, 370VAC

* Resistance at 20°C of Ambient Temp.

Resistance of Fan Motor windings and rated Capacitor

Resistance of Compressor windings and rated Capacitor

CW-A180BN

CW-A240SN

RED (RED)

BLUE (BLU)

YELLOW (YEL)

TRADE MARK

THE PARENTHESIZED LETTER IS

INDICATED ON TERMINAL COVER.

COMPRESSOR TERMINAL

POWER SUPPLY CORD

POWER

SUPPLY

CORD

1ø, 240–220V, 50Hz

1ø,

240–220V,

50Hz

MAIN SWITCH

MAIN

SWITCH

BROWN

BLACK

BLACK BLACKBLACK

YELLOW

BLUE

YELLOW/GREEN

BLUE

BLACK

RED

YELLOW

YELLOW/GREEN

ORANGE

AIR SWING

SELECT

SWITCH

AIR SWING

MOTOR

BLACK

BLUE

RED

BLUE

RED

GRAY

BLACK

FAN

MOTOR

FUSE (5A)

B A

CAPACITOR

THERMOSTAT

CAPACITOR

COMPRESSOR

THERMOSTAT

COIL-REVERSING

VALVE

ELECTRIC DEICER

ELECTRIC

DEICER

ZNR

Ry –D

COM

OFF

LOW

HIGH

COOL

HEAT

LOW

FAN

CW-C180BN

–5 –

REFRIGERATION CYCLE DIAGRAM

CW-A180BN

CW-A240SN

ITEM PRESSURE (kg/cm2) TEMP. (°C)

A 15.5 ~ 19.0 55 ~ 70

B 4.0 ~ 4.5 0 ~ 5

C 15.0 ~ 18.5 37 ~ 47

D 15.4 ~ 18.9 45 ~ 55

* Indoor temp. at 21°C (DB), and Outdoor at 7°C (DB), 6°C (WB).

ITEM PRESSURE (kg/cm2) TEMP. (°C)

A 17.5 ~ 21.0 75 ~ 90

B 17.2 ~ 20.7 38 ~ 45

C 5.5 ~ 6.1 7 ~ 15

D 5.3 ~ 5.8 5 ~ 15

* Indoor temp. at 27°C (DB), 19°C (WB) and Outdoor at 35°C , 24°C.

SUCTION & DISCHARGE AIR CURRENT DETERMINATION REMEDY

TEMPERATURE DIFFERENCE

12°C and over As specified •Nothing wrong •None

12°C and over Higher than specified •Nothing wrong, outdoor temperature •None

is high

•Something is preventing heat •Clean air-filter

radiation at indoor heat-exchanger

Under 12°C Lower than specified •Nothing wrong, outdoor temperature •None

is too low

•Something is preventing heat •Improve heat radiation at outdoor

radiation at outdoor heat-exchanger heat-exchanger

•Leakage of refrigerant •Locate & repair leak

•Refrigerant system is blocked •Flush refrigeration leak

Under 12°C Higher than 150% of specified •Compressor defect •Replace compressor

•Compressor capacitor defect •Replace compressor capacitor

1Compressor

24-Way Valve

3Evaporator

4Capillary Tube

5Strainer

6Condenser

7Accumulator

HEATING

COOLING

ITEM PRESSURE (kg/cm2) TEMP. (°C)

A 18.5 ~ 22.0 80 ~ 95

B 18.2 ~ 21.7 44 ~ 52

C 5.7 ~ 6.3 7 ~ 15

D 5.5 ~ 6.0 6 ~ 16

1Compressor

2Condenser

3Strainer

4Capillary Tube

5Evaporator

6Accumulator

CW-C180BN

CW-C240SN

HEATING

COOLING

* Note: Room air humidity is relatively higher, the Temp. difference will be smaller.

* Indoor temp. at 27°C (DB), 19°C (WB) and Outdoor at 35°C , 24°C.

SUCTION & DISCHARGE AIR CURRENT DETERMINATION REMEDY

TEMPERATURE DIFFERENCE

8°C and over As specified Nothing wrong •None

8°C and over Higher than specified Nothing wrong, outdoor temperature is •Improve heat radiation

too high, heat radiation is not efficient

Under 8°C Higher than specified but below Something is preventing heat radiation •Excessive amount of refrigerant

150% of specified •Improve heat radiation

Under 8°C Lower than specified Leakage of refrigerant or refrigerant •Locate repair leak

system is blocked •Flush refrigeration cycle

Under 8°C Higher than 150% of specified Compressor defect or compressor •Replace the compressor or

capacitor defect compressor capacitor

HEATING

AIR CONDITIONER PERFORMANCE EVALUATION

COOLING

CW-C180BN

–6 –

Over

15 cm

Over

15 cm

66 cm

43 cm

Front Grille

Less than

22 cm

Outdoor

(wall) Over

50 cm

Fence or

likewise

Indoor

Ceiling (TOP VIEW)

Outdoor

Over

15 cm

Over 50 cm

Over

15 cm

Indoor

(wall)

Fence or

likewise

(SIDE VIEW)(FRONT VIEW)

Please read the following before installing the Air Conditioner.

Select the best location for the most efficient cooling.

Location

•The air conditioner should be installed in a dry place where there are no draughts.

•Condensation from the air conditioner must be drained to an appropriate location.

•Do not install in a location where flammable gas leaks are a possibility.

•Using in locations where the air is salty such as beside the sea or near hot spas, or

where sulphurous gas is generated, may lead to a malfunction. Please consult your dealer.

•Select a installation location which is rigid and strong enough to support or hold the unit and select a

location for easy maintenance.

How to install

•There should not be any obstacles surrounding the unit.

•Prepare the installation hole slightly bigger than cabinet size.

1) PREPARE CHASSIS

•Remove chassis locking bracket by loosening the screw.

•Slide the chassis out from the cabinet.

2) Place cabinet into opening and secure it by wood screws or

nails.

•The cabinet should be installed tilted slightly lower to the

rear for necessary condensate drainage. (Max. 10mm).

3) Slide Chassis into the cabinet which installed the above 2.

•The tubings or ducting part should not touch the cabinet

4) Lock the chassis into cabinet by chassis locking bracket.

5) Place FRONT GRILLE onto CABINET by screws.

•To place the grille, hook top of grille onto top of cabinet, push

bottom of grille in until it snaps into place. Secure the Front Grille

with the screws at the right, left and center of the grille.

GrilleCabinet

To place the Grille

Chassis

Locking

Bracket

HOW TO INSTALL

CW-C180BN

–7 –

HOW TO INSTALL

3. Drain Water....

To get the maximum cooling efficiency this air conditioner is designed to splash the condensate on the condenser coil.

This method is called “Slinger-Up System”. (For cooling model only)

If the splashing sound annoys you, you can provide an outside drain by using the following procedure which may, however cause

a small loss of performance.

1. Slide out the chassis from the cabinet.

2. Remove the rubber plug from the body base plate. (For cooling model only)

3. Install the drain pan prepared in the accessory kit to the corner of the cabinet with 2 screws.

4. Connect the drain hose to the outlet on the drain pan bottom.

5. Slide the chassis into its original place in the cabinet.

Note: Drain hose or tubing can be purchased locally to satisfy your particular needs.

4. Plug line cord into wall receptacle.

<240–220V, 50Hz>

•Power should be from independent circuit.

•Nominal cross sectional area of power supply wire must be 3 core x 2.5 mm2or above.

EXTERNAL VIEW

INTERNAL VIEW

SCREWS

DRAIN PAN

DRAIN HOSE

Install drain pan at left corner of cabinet.

EXTERNAL VIEW

INTERNAL VIEW

Install drain pan at right corner of cabinet.

SCREWS

(CW-C180BN, CW-A180BN) (CW-C240SN, CW-A240SN)

DRAIN PAN

DRAIN HOSE

CW-C180BN

–8 –

°C

1. Power Supply

Set the Main Control Knob to the “”OFF

position; confirm that the power supply cord is

connected to a proper AC outlet.

Recommended

Use the air conditioner under

the following conditions:

•Operating temperature range.

(unit in °C)

Indoor unit Outdoor unit

D.B.T. W.B.T. D.B.T. W.B.T.

Maximum

Temperature

Minimum

Temperature D.B.T.: Dry Bulb Temperature

W.B.T.: Wet Bulb Temperature

•Humidity does not exceed 90%.

Continuous operation at over 90% humidity

may create condensation and waterdrops on

the intake and outlet vents.

32 23 43 26

21 15 21 15

Illustration

only for

CW-C180BN

2. Open the

cover

3. Main Control Knob

Set to either “”LOW COOL or “”HIGH

COOL as required.

(FAN setting operates the fan only.)

* Caution: If the Main Control Knob is turned

off or changed to a fan setting from a cooling

operation setting, WAIT at least 3 minutes

before resetting to a cooling operation.

4. Thermostat Control Knob

Set the Thermostat Control Knob at the

desired setting. (Usually “~ ”is a

recommended setting position.) If the room

temperature is unsatisfactory after a

reasonable amount of time, turn the control

knob clockwise to cool the room more, or

anticlockwise to cool the room less.

•When the Thermostat Control Knob is set to

“”, moisture may freeze onto the coils and

prevent effective cooling. If this happens, turn

the knob to “”HIGH FAN, and the thermostat

control knob anticlockwise. This will quickly

defrost the cooling coil so that normal cooling

can be resumed.

5. Air Swing Switch

(Airflow direction adjustment

Side-to-Side)

For fixed side-to-side air direction, set the Air

Swing Switch to “”ON until the desired air

direction is obtained, then move it to “”OFF.

For continuous side-to-side air circulation, set

the Air Swing Switch to “”ON and leave it

there.

HOW TO OPERATE

CW-C180BN, CW-C240SN (Cooling Only)

CW-C180BN

–9 –

°C

1. Power Supply

Set the Main Control Knob to the “”OFF

position; confirm that the power supply cord is

connected to a proper AC outlet.

32 23 43 26

21 15 21 15

Recommended

Use the air conditioner under

the following conditions:

•Operating temperature range. (unit in °C)

Indoor unit Outdoor unit

D.B.T. W.B.T. D.B.T. W.B.T.

Maximum

Temperature

Minimum

Temperature

Maximum

Temperature

Minimum

Temperature D.B.T.: Dry Bulb Temperature

W.B.T.: Wet Bulb Temperature

•Humidity does not exceed 90%.

Continuous operation at over 90% humidity

may create condensation and waterdrops on

the intake and outlet vents.

HEATING COOLING

27 –21 15

20 –-5 -6

2. Open the

cover

3. Main Control Knob

Set to either “”LOW COOL or “”HIGH

COOL and “”LOW HEAT or “”HIGH

HEAT as required.

(FAN setting operates the fan only.)

* Caution: If the Main Control Knob is turned

off or changed to a fan setting from a cooling

or heating operation setting, WAIT at least 3

minutes before resetting to a cooling or

heating operation.

4. Thermostat Control Knob

Set the Thermostat Control Knob to the desired

setting. (Usually “~ ”(Red) is a

recommended setting for heating and “~ ”

(Blue) for cooling.) If the room temperature is

unsatisfactory after a reasonable amount of

time, turn the control knob clockwise or anti-

clockwise to make the room cooler or warmer.

•When the Thermostat Control Knob is set to

“ ” (Blue), moisture may freeze onto the coils

and prevent effective cooling. If this happens,

turn the knob to “”(Gray) FAN, and the

thermostat control knob anticlockwise. This will

quickly defrost the cooling coil so that normal

cooling can be resumed.

5. Air Swing Switch

(Airflow direction adjustment

Side-to-Side)

For fixed side-to-side air direction, set the Air

Swing Switch to “”ON until the desired air

direction is obtained, then move it to “”OFF.

For continuous side-to-side air circulation, set

the Air Swing Switch to “”ON and leave it

there.

HOW TO OPERATE

CW-A180BN, CW-A240SN (Cooling & Heating)

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