Panasonic CS-A181KR User manual

ServiceManual

Room Air Conditioners

Contents

●Features ..........................................................1

●Functions ...................................................2 – 4

●Product Specifications ...............................5 – 8

●Dimensions..............................................9 – 10

●Refrigeration Cycle Diagram .........................10

●Block Diagram ...............................................11

●Wiring Diagram..............................................12

●Operation Details...................................13 – 22

●Installation Information ..........................23 – 24

●3-way Valves .........................................25 – 31

●Servicing Information.............................32 – 35

●Troubleshooting Guide ..........................36 – 37

●Technical Data.......................................38 – 40

●Exploded View.........................................41, 43

●Replacement Parts List ...........................42, 44

●Electronic Parts List...............................45 – 46

CS-A181KR / CU-A181KR

CS-A241KR / CU-A241KR

ORDER NO. MAC9903022C3

 1999 Matsushita Air-Conditioning Corp. Sdn. Bhd.

(183914D)

tion is a violation of law.

Untitled-5 6/10/00, 3:21 PM1

– 1 –

MAC9512086C2

CS-A181KR

WARNING

Thisserviceinformationisdesigned forexperienced repair techniciansonlyandisnotdesignedfor useby thegeneralpublic.It doesnotcontain

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.

• High Efficiency

• High Efficiency Airflow Circuit

• Compact Design

• Removable and Washable

Front Panel

• Auto Restart after Power Failure

• Long Piping up to 25m

• Deodorizing Air Filter

• Deodorizing Control during

operation

• Cold draught Control

Features

Untitled-1 6/10/00, 9:27 AM1

– 2 –

MAC9512086C2

CS-A181KR

Remote Control

Functions

Operation OFF / ON

OFF / ON IRoom Temperature Setting

TEMP.

• Temperature Setting (16˚C to 30˚C)

• Automatic Operation

m /n 2˚C lower than standard

n Standard

n -o 2˚C higher than standard

Operation Mode Selection

•AUTO Automatic Operation Mode

•HEAT Heating Operation Mode

•COOL Cooling Operation Mode

•DRY Soft Dry Operation Mode

MODE

TIME Time / Timer Setting

• Hours and minutes setting.

Clock Setting

• Current time setting.

Sleep Mode Operation OFF / ON

SLEEP

Indoor Fan Speed Selection

FAN SPEED

•h j k Low Speed

•h j k Medium Speed

lll

•h j k High Speed

lllll

•AUTOFAN Automatic Fan Speed

•SWING Automatic Airflow Direction

Control

•MANUAL Airflow Direction Manual Control

Airflow Direction Control

• 24-hour, OFF / ON Real Timer Setting.

ON-TIMER

OFF-TIMER Timer Operation Selection

SET

CANCEL Timer Operation Set / Cancel

• ON Timer and OFF Timer setting and

cancellation.

CLOCK

(q)

AIR SWING

Untitled-1 6/10/00, 9:27 AM2

– 3 –

MAC9512086C2

CS-A181KR

Indoor Unit

Functions

Power Switch OFF / ON

POWER IAuto Restart Control

• Operation is restarted after power failure

at previous setting mode.

Anti-Freezing Control

• Anti-Freezing control for indoor heat

exchanger. (Cooling and Soft Dry)

Sleep Mode Auto Control

• Indoor Fan operates at Super Low fan

speed.

• Operation stops after 8 hours.

Indoor Fan Speed Control

• High, Medium and Low.

• Automatic Fan Speed Mode

– Heating : Fan speed varies from Me

SLo in accordance with indoor

heat exchanger.

– Cooling : Fan rotates at Hi and Me

speed. Deodorizing control is

available.

– Soft Dry : Fan rotates at SLo speed.

Deodorizing control is

available.

Hot-Start Control

• Automatic air swing and manual adjusted

by remote control for vertical airflow.

• Manually adjusted by hand for horizontal

airflow.

Airflow Direction Control

• The indoor fan stops until the indoor heat

exchanger temperature over 30°C.

• The indoor fan operates at SLo and Lo–

when indoor heat exchanger temperature

reaches 30°C ~ 42°C.

• Hot start is completed when indoor heat

exchanger reaches 42°C.

Auto Operation Switch

• Used when the remote control cannot be

used.

AUTO

OFF / ON

Remote Control Signal Receiving

Sound Control

• It can be controlled by pressing Auto

Operation Switch for 10 seconds.

Operation Test Running / Pump

Down Switch

TEST RUN

OFF / ON

• Used when test running or servicing.

Operation Indication Lamps (LED)

•POWER (Red)...... Lights up in operation,

blinks in Automatic

Operation Mode judging

and Hot Start operation.

•SLEEP (Orange)..... Lights up in Sleep

Mode Operation.

•TIMER (Orange)..... Lights up in Timer

Setting.

Operation Mode

• Heating, Cooling, Soft Dry, and Automatic

Mode.

Time Delay Safety Control

• Restarting is inhibited for appro. 3 minutes.

7 Minutes Time Save Control

• Cooling Operation only.

➝

Untitled-1 6/10/00, 9:27 AM3

– 4 –

MAC9512086C2

CS-A181KR

Outdoor Unit

Functions

4-Way Valve Control

• When the unit is switched to "OFF" during

Heating operation, 4-way valve stays at

Heating Position for 5 minutes.

60 Secs. Forced Operation Control

• Once the compressor is activated, it does

not stop for 60 secs. (Stops immediately

with remote control stop signal.)

Outdoor Fan Operation Control

•

4-pole induction motor (2-speed)

• For Cooling or Soft Dry Operation

Hi-speed … when outdoor temperature

reaches to 31°C

Lo-speed … when outdoor temperature

reaches to 29°C

• For Heating Operation

Hi-speed ... when outdoor temperature

reaches to 13.5°C.

Lo-speed ... when outdoor temperature

reaches to 15.5°C.

• For Over-heating Protection, the Fan is

switched ON or OFF depending on the

piping temperature and the outdoor tem-

perature.

Overload Protector

• Inner protector (Compressor, Fan Motor).

Deice Control

•

To prevent frosting at outdoor heat

exchanger during Heating Operation.

2-Way Valve Control

• 2-way valve is ON for 1 minutes after

compressor start. Other than this, 2-way

valve is OFF. (A241K only)

Untitled-1 6/10/00, 9:27 AM4

– 5 –

MAC9512086C2

CS-A181KR

Product Specifications

Input

Running Current

COP

Starting Current

Cooling Capacity

Heating Capacity

Moisture Removal

Power Source

Airflow Method

Air Volume

Noise Level

Electrical

Data

Piping Connection Port

(Flare piping)

Pipe Size

(Flare piping)

Drain

Hose

Power Cord Length

Number of core-wire

Dimensions

Net Weight

Compressor

Air Circulation

Indoor Air (Lo)

Indoor Air (Me)

Indoor Air (Hi)

Outdoor Air

Inner diameter

Length

CU-A181KR

TOP VIEW

–

G ; 3-way valve 1/2"

L ; 3-way valve 1/4"

G (gas side) ; 1/2"

L (liquid side) ; 1/4"

–

26-31/32 (685)

31-1/2 (800)

11-13/16 (300)

137 (62)

Rotary (1 cylinder)

rolling piston type

Induction (2-poles)

1.7

Propeller Fan

PC + AES + Glass Fiber 15%

Induction (4-poles)

139

670 - 635

–

1,030 - 990

CS-A181KR

SIDE VIEW

–

G ; Half Union 1/2"

L ; Half Union 1/4"

G (gas side) ; 1/2"

L (liquid side) ; 1/4"

0.75

2.1

3 (1.5 mm2)

11-7/16 (290)

38-19/32 (980)

7-11/16 (195)

29 (13)

–

Cross-flow Fan

AS + Glass Fiber 30%

Transistor (4-poles)

61.9

Cooling ; 980 Heating ; 980

Cooling ; 1,090 Heating ; 1,090

Cooling ; 1,200 Heating ; 1,240

Unit

Btu/h

s/h

Pint/h

Phase

Cycle

OUTLET

INTAKE

m3/min (cfm)

dB (A)

W/W

inch

inch (mm)

lb (kg)

rpm

Height

Width

Depth

Type

Motor Type

Rated Output

Type

Material

Motor Type

Input

Rated Output

Fan Low

Speed Medium

High

5.20 - 5.15

17,700 - 17,600

6.20 - 6.15

21,100 - 21,000

2.9

6.1

Single

240 - 230

Cooling ; 11.2 (395)

Heating ; 11.6 (409)

Cooling ; 12.4 (437)

Heating ; 12.9 (455)

Cooling ; 13.7 (480)

Heating ; 14.2 (500)

Cooling ; 11.8 (416)

Heating ; 12.2 (430)

Cooling ; High 43 - 43, Low 38 - 38 Cooling ; High 56 - 56

Heating ; High 42 - 42, Low 38 - 38 Heating ; High 57 - 57

Cooling ; 2.19 - 2.10

Heating ; 2.28 - 2.17

Cooling ; 11.4 - 11.1

Heating ; 11.3 - 10.8

Cooling ; 2.37 - 2.45

Heating ; 2.72 - 2.83

Untitled-1 6/10/00, 9:27 AM5

– 6 –

MAC9512086C2

CS-A181KR

Product Specifications

Length

Flow Rate

Inner Diameter

Material

Style

Heat

Exchanger

Refrigerant Control Device

Refrigeration Oil

Refrigerant (R-22)

Thermostat

Protection Device

Capillary Tube

Air Filter

Compressor Capacitor

Fan Motor Capacitor

Description

Tube material

Fin material

Fin Type

Row / Stage

FPI

Size (W ×H ×L)

CS-A181KR

Evaporator

Copper

Aluminium

Slot Fin

2 ×14

732 ×294 ×25.4

–

Electronic Control

–

P.P.

Honeycomb

–

µF, VAC

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

Unit

(cm3)

g (oz)

s/min

769.2

732.9

CU-A181KR

Condenser

Copper

Aluminium

Corrugated Fin

2 ×26

×660.4 ×44

Capillary Tube

SUNISO 4GDID or

ATMOS M60 (700)

1,590 (56.1)

–

Inner Protector

Cooling ; 690 Heating ; 650

Cooling ; 13.0 Heating ; 20.9

Cooling ; 1.6 Heating ; 1.9

–

35 µF, 370VAC

3.0 µF, 400VAC

(Plate fin configuration, forced draft)

Untitled-1 6/10/00, 9:27 AM6

– 7 –

MAC9512086C2

CS-A181KR

Height

Width

Depth

Type

Motor Type

Rated Output

Type

Material

Motor Type

Input

Rated Output

Fan Low

Speed Medium

High

Unit

Btu/h

s/h

Pint/h

Phase

Cycle

OUTLET

INTAKE

m3/min (cfm)

dB (A)

W/W

inch

inch (mm)

lb (kg)

rpm

Cooling Capacity

Heating Capacity

Moisture Removal

Power Source

Airflow Method

Air Volume

Noise Level

Electrical

Data

Piping Connection Port

(Flare piping)

Pipe Size

(Flare piping)

Drain

Hose

Power Cord Length

Number of core-wire

Dimensions

Net Weight

Compressor

Air Circulation

Product Specifications

Input

Running Current

COP

Starting Current

Indoor Air (Lo)

Indoor Air (Me)

Indoor Air (Hi)

Outdoor Air

Inner diameter

Length

CS-A241KR

SIDE VIEW

–

G ; Half Union 5/8"

L ; Half Union 1/4"

G (gas side) ; 5/8"

L (liquid side) ; 1/4"

0.75

2.1

3 (2.5 mm2)

11-7/16 (290)

38-19/32 (980)

7-11/16 (195)

29 (13)

–

Cross-flow Fan

AS + Glass Fiber 30%

Transistor (4-poles)

72.2

Cooling ; 1,100 Heating ; 1,200

Cooling ; 1,200 Heating ; 1,320

Cooling ; 1,320 Heating ; 1,410

CU-A241KR

TOP VIEW

–

G ; 3-way valve 5/8"

L ; 3-way valve 1/4"

G (gas side) ; 5/8"

L (liquid side) ; 1/4"

–

26-31/32 (685)

31-1/2 (800)

11-13/16 (300)

146 (66)

Rotary (1 cylinder)

rolling piston type

Induction (2-poles)

2.2

Propeller Fan

PC + AES + Glass Fiber 15%

Induction (4-poles)

191.0

108

720 - 680

–

1,200 - 1,170

6.45 - 6.40

22,000 - 21,800

7.80 - 7.65

26,600 - 26,100

3.8

8.0

Single

240 - 230

Cooling ; 13.1 (462)

Heating ; 14.1 (497)

Cooling ; 14.3 (504)

Heating ; 15.4 (542)

Cooling ; 15.7 (550)

Heating ; 16.9 (600)

Cooling ; 14.3 (504)

Heating ; 15.4 (542)

Cooling ; High 47 - 47, Low 41 - 41 Cooling ; High 61 - 61

Heating ; High 46 - 46, Low 41 - 41 Heating ; High 62 - 62

Cooling ; 3.08 - 2.95

Heating ; 3.16 - 3.05

Cooling ; 15.7 - 15.6

Heating ; 14.7 - 14.2

Cooling ; 2.09 - 2.17

Heating ; 2.47 - 2.51

Untitled-1 6/10/00, 9:27 AM7

– 8 –

MAC9512086C2

CS-A181KR

Product Specifications

Length

Flow Rate

Inner Diameter

Material

Style

Heat

Exchanger

Refrigerant Control Device

Refrigeration Oil

Refrigerant (R-22)

Thermostat

Protection Device

Capillary Tube

Air Filter

Compressor Capacitor

Fan Motor Capacitor

Unit

(cm3)

g (oz)

s/min

Description

Tube material

Fin material

Fin Type

Row / Stage

FPI

Size (W ×H ×L)

µF, VAC

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

769.2

732.9

CS-A241KR

Evaporator

Copper

Aluminium

Slot Fin

2 ×14

732 ×294 ×25.4

–

Electronic Control

–

P.P.

Honeycomb

–

CU-A241KR

Condenser

Copper

Aluminium

Corrugated Fin

2 ×26

×660.4 ×44

Capillary Tube

SUNISO 4GDID or

ATMOS M60 (1,130)

1,770 (62.5)

–

Inner Protector

Cooling ; 700 Heating ; 649

Cooling ; 17.5 Heating ; 27.0

Cooling ; 1.8 Heating ; 2.4

–

50 µF, 370VAC

3.0 µF, 450VAC

(Plate fin configuration, forced draft)

Untitled-1 6/10/00, 9:27 AM8

– 9 –

MAC9512086C2

CS-A181KR

Dimensions

CS-A181K / CS-A241K

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

142

Remote control transmitter

Unit : mm

Approx. 706

Gas side Liquid side

Installation plate hooks

Drain ports

980

290

195

direction

Air intake

Air outlet direction

Left piping hole

Right piping hole

Lower piping hole

165

2,100

Approx

48.5

(39) 892 (49)

276 7

(59.5)

(165)

100 100

Slot (2 places)

Indoor unit external

dimensions line

Installation plate

Left piping hole

Arrow

Centre

Right piping hole

Installation plate positioning gauge

350

561

13.5

(Ø 70)

(335.5)

piping hole

(Ø 70)

Untitled-1 6/10/00, 9:27 AM9

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