Panasonic CS-A18BTP, CU-A18BBP5, CU-C18BBP5 Service Manual

5 (2)

ORDER NO. MAC0208029C8

AIR CONDITIONER

CS-A18BTP CU-A18BBP5

CS-A18BTP CU-C18BBP5

CONTENTS

 

 

Page

 

 

Page

1

SERVICE INFORMATION

3

18

REACHING DISTANCE

39

2

FEATURES

4

19

SOUND DATA

40

3

SPECIFICATION (HEAT PUMP TYPE )

8

20

TWIN AND TRIPLE

42

4

SPECIFICATION (COOLING ONLY TYPE )

9

21

WIRING MISTAKE PREVENTION

47

5

TECHNICAL DRAWING

10

22

TEST OPERATION AND SELF DIAGNOSIS

48

6

CIRCUIT DIAGRAM

12

23

SETTING OF SAVE ENERGY AND THERMISTOR SWITCH

52

7

OPERATING INSTRUCTION

24

24

GROUP CONTROL

53

8

REFRIGERATION CYCLE

26

25

TROUBLESHOOTING

54

9

OPERATION RANGE

28

26

EMERGENCY OPERATION

59

10

PIPE LENGTH

29

27

CONTROL

60

11

OPERATING CHARACTERISTIC

31

28

WIRED REMOTE CONTROL INSTALLATION MANUAL

70

12

FAN PERFORMANCE

32

29

WIRELESS REMOTE CONTROL INSTALLATION MANUAL

75

13

SAFETY DEVICE

33

30

INSTALLATION (INDOOR UNIT)

82

14

COMPONENT SPECIFICATION

34

31

INSTALLATION (OUTDOOR UNIT)

91

15

CAPACITY AND POWER CONSUMPTION

35

32

REPLACEMENT PARTS

101

16

DISCHARGE AND SUCTION PRESSURE

37

33

HEATING CAPACITY PERFORMANCE DATA

110

17

POSITION OF THE CENTRE GRAVITY

38

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

© 2002 Matsushita Industrial Corporation Sdn. Bhd.

 

 

 

 

 

(11969-T). All rights reserved. Unauthorized copying

 

 

 

 

 

and distribution is a violation of law.

 

 

 

 

 

 

 

 

34 COOLING CAPACITY PERFORMANCE DATA

111

2

1 SERVICE INFORMATION

Caution:

Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).

● Pb free solder will tend to splash when heated too high (about 1100° F/600°C).

Notice of Address setting for NEW Ceiling / NEW Outdoor Unit.

The new Ceiling / new Outdoor models are possible to have address setting for twin / triple control or group control automatically when main power supply is switched on.

(Manual address setting is also possible by using DSW1 switch on the indoor unit P.C. board.) However, this address setting is only possible when proper wiring connection is made and indoor unit must be of original unit.

1.1.Example of trouble during test operation

If the below phenomenon is found during test operation, wrong address setting is possible.

Therefore, please inspect the address setting.

1.LCD display of the wired remote control is not illuminated although the main power supply switch is ‘on’.

2.LCD display had indicated as normal illumination when power supply switch is ‘on’, however outdoor unit cannot be operated. (But, it is necessary to take 3 to 5 minutes for outdoor unit to start from the timing of remote control OFF/ON button is ‘on’.) (For normal operation, the outdoor unit will only start its operation after 3 to 5 minutes upon pressing the OFF/ON button.)

3.P.C. board had memorized wrong setting information.

a.If main power supply is switched on with the wrong connection.

b.When changing the connection or combination of units due to re-installation etc.

When changing the system from twin to triple (triple to twin).

When changing the system from group control to normal one to one system.

When making the replacement of units of master and slave etc.

1.2.Caution during test operation

Do not touch the remote control button and do not change any wirings for one minute when the main power supply switch is ‘on’. (Because the unit is having automatic address setting during the first one minute.)

1.3.Caution during automatic address setting

When the main power supply switch is ‘on’, the P.C. board will automatically memorize the connecting system. Consequently, when initial power supply is ‘on’, there mustn’t be any interchanging of units even of the same type and same

capacity unit.

Therefore, connection of the unit to another system is prohibited.

3

2 FEATURES

2.1.New design

2.1.1.Gentle curved styling

The base has gentle curves which express a functional beauty. It spreads the air quietly over a wide area.

2.2.Such quietness!

2.2.1.Several new mechanism add up to low 36 dB noise (A18BT - High Fan Speed)

1.Delta throat fan

A delta throat (projection) has been attached to the fan outlet to suppress the generation of vortexes. This helps maintain air flow sped even at lower fan speeds and is effective in reducing noise.

2.Reflux orifice

The orifice at the intake port is equipped with an air flow guide which minimizes the flow disturbances which occur at the orifice and inside the impeller.

This reduces pressure losses inside the casing and also helps reduce noise.

3. Adoption of wing-shaped vanes

The vanes of the fan have been changed to “aerodynamic” shaped vanes, so that the air flow more smoothly over the vane surfaces and noise is thus suppressed.

Side filters have been adopted in the pipe partitions. These allow the air intake space to be increased and also further reduce noise.

2.2.2.Automatic swinging louvre

The horizontal air flow angle is a wide 100 degrees (manual). The louvre can swing automatically (through 70 degrees vertically) using the remote control. This increases the area of comfortable air flow and warms the air even to floor level.

2.2.3.Newly-shaped louvre

The newly-shaped louvre and air outlet effectively distribute the air flow. During cooling, this stops warm air from collecting near the louvre, and prevents freezing.

4

If renewing the system, existing refrigerant pipes can be utilized so that only the indoor and outdoor units need to be replaced.

2.3.Easy installation

2.3.1.Easy suspension

A suspension bolt fixing bracket with 4-point support is attached to the main unit, which increases the space available for installation.

2.3.2.Two installation methods : standard and wall

In addition to the standard (1) ceiling installation, a wall (2) installation method (using a wall-hanging bracket) is available for cases where the ceiling is too high for the main unit to be suspended.

2.5.2.Maintenance is possible from underneath the unit.

If the bottom panel is detached, the drain pan can then be removed and installed from underneath the unit, and inspection and servicing of component such as the control panel also becomes easier.

2.6.Auto fan mode (indoor unit)

Auto fan mode is added besides high, medium and low. It automatically adjusts the fan speed according to the indoor unit’s temperature.

2.4.Piping

2.4.1.3-direction pipe lead-out

The refrigerant piping can lead out in one of three directions (right, rear-right and top-right), and the drain pipe direction can be selected from four directions (right, rear-right, left and rear-left).

2.7.Hot start system (heat pump models)

2.8.Automatic changeover function (heat pump models)

The unit automatically switches between cooling and heating in accordance with operating load in order to maintain a comfortable indoor temperature.

2.9.Greatly improved workability increases system renewal capability

Pipes that are one size larger can also be connected for renewal.

2.5.Easy maintenance

2.5.1.Long life filter (standard equipment)

In general office environments, cleaning (maintenance) is not required until after approximately 2,500 hours of operation, thus reducing maintenance work.

For optimum comfort, it is recommended to clean the air filter every 1-1/2 months.

For example, liquid and gas pipes from 10 years ago can be connected to current pipes with the same size or one size larger. Effective utilization of materials reduces working time and trouble. (Adaptor sockets are not supplied.)

5

Additional refrigerant charging unnecessary for 10 m

All models do not require any additional charging of refrigerant for 10 m of pipe length. This makes installation much easier.

Drain water dripping-prevention structure

The base of the outdoor unit is provided with a single drain hole in order to prevent drain water from leaking out of the unit. By connecting a drain elbow and a discharge pipe, water leakages can be prevented even when the unit is installed to a wall.

Long pipe design for refrigerant pipes

Maximum piping length of 25m for all models.

2.10.A brand-new control method using the latest in technology

Easier power supply wiring connection

Power supply wiring and other wiring tasks can be carried out more easily.

Twin non-polar wires used to connect indoor and outdoor units.

Adoption of connection error prevention circuits for drive wires and signal wires. If a connection error is made, the relay does not operate and current does not flow to the circuit boards.

Twin and Triple operation

Simultaneous air conditioning of wide spaces and corners is possible. Indoor units of different horsepowers can even be used in combination.

Master unit and slave-units can be set automatically in twin and triple systems. No address setting is necessary.

Multiple indoor units can be operated simultaneously with a single remote control. Note that individual operation is not possible.

Separate indoor/outdoor unit power supplies

The power supply can be connected to (1) just the outdoor units, or (2) to both the indoor and outdoor units.

Easy test operation

Test operation can be carried out for both indoor and outdoor units.

Automatic setting initialization function (Remote control and Indoor unit)

In accordance with the indoor and outdoor units connected and the connection methods, conditions such as the connection configuration (twin or triple format) and remotecontrol functions such as automatic louvre operation and cooling or heating mode are automatically detected and set instantly.

2.11. Wired Remote Control

The new design includes an easily-visible red pilot lamp. The power can be turned on and off at a single touch, without opening the cover.

Has a build-in thermistor, allowing indoor temperature detection in accordance with indoor conditions by switching with main unit thermistor.

Twin non-polar wires make installation work easy. (10 m cable supplied as accessory.)

6

2.12. Wireless Remote Control

2.13. Group Control Equipment

New design with compact size. (Operation range within approximately 8 m.)

Built-in timer with ON/OFF timer setting (within 24 hours)

 

Wired

Wireless

Heat Pump

CZ-RD51P

CZ-RL51P

 

 

 

Cooling

CZ-RD51P

CZ-RL01P

NOTE: Both of the above remote control is packed separately from the indoor unit.

7

3 SPECIFICATION (HEAT PUMP TYPE )

3.1.CS-A18BTP / CU-A18BBP5

 

ITEM / MODEL

 

 

 

Indoor Unit

 

Outdoor unit

 

 

 

Main Body

 

CS-A18BTP

 

CU-A18BBP5

 

 

 

Remote

 

CZ-RD51P (Wired)

 

 

 

Control

 

CZ-RL51P (Wireless)

Cooling Capacity

 

 

kW

5.0

 

 

 

 

BTU/h

17,100

 

Heating Capacity

 

 

kW

5.6

 

 

 

 

BTU/h

19,100

 

Refrigerant Charge-less

 

m

10

 

Standard Air Volume for High,

 

m3/min

14

 

 

Hi 43

Medium and Low Speed

 

cfm

494

 

 

1518

Outside Dimension (H x W x D)

 

mm

 

210 x 1245 x 700

 

685 x 800 x 300

 

 

 

inch

 

8-17/32 x 49-1/64 x 27-9/16

 

26-31/32 x 31-1/2 x 11-13/16

Net Weight

 

 

kg

33

 

 

56

 

 

 

lbs

73

 

 

123

Piping

Refrigerant

Gas

mm (inch)

 

O.D Ø 12.7 (1/2) Flared Type

Connection

 

Liquid

mm (inch)

 

O.D Ø 6.35 (1/4) Flared Type

 

Drain

 

mm

 

O.D Ø 20

 

I.D Ø 20 x 1

Compressor

Type, Number of Set

 

-

 

 

Hermetic-1 (Rotary), 1

 

Starting Method

 

 

-

 

 

Direct on-line starting

 

Motor

Type

 

-

 

 

2-pole single phase induction

 

 

 

 

 

 

 

 

motor

 

 

Input

kW

-

 

 

Cool/Heat 2.31/2.30

 

 

Rated Output

kW

-

 

 

1.5

Fan

Type, Number of Set

 

 

Sirocco fan-4

 

Propeller fan-1

 

Motor

Type

 

 

4-pole single phase induction motor

 

4-pole single phase induction

 

 

 

 

 

 

 

 

motor

 

 

Input

kW

0.08

 

 

0.11

 

 

Rated Output

kW

0.03

 

 

0.045

Air-heat Exchanger

 

 

 

Slit-fin type

 

Louvre-fin type

Refrigerant Control

 

Cool

 

Capillary tube

 

-

 

 

 

Heat

-

 

 

Capillary tube

Refrigerant Oil (Charged)

 

litre

-

 

 

M60 (0.67)

Refrigerant (Charged)

 

kg

-

 

 

(2.0)

 

 

 

oz

 

 

 

 

(71)

Running

Control Switch

 

 

 

Wireless or Wired Remote Control

 

-

Adjustment

Room Temperature

 

 

 

Thermostat (Main Body)

 

-

Safety Devices

 

 

 

 

Internal protector for compressor, Internal thermostat for fan motor,

 

 

 

 

 

Crankcase heater, High and heating pressure switch, Current

 

 

 

 

 

transformer

Noise Level

 

 

dB (A)

 

Hi 40 Lo 36

 

Heating:55 Cooling:54

 

 

 

Power level dB

 

Hi 57 Lo 53

 

Heating:68 Cooling:67

1.Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)

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

ELECTRICAL DATA (50Hz)

ITEM / MODEL

 

 

 

 

CS-A18BTP, CU-A18BBP5

 

 

 

 

 

 

 

Condition by JIS B 8615

 

Volts

 

V

 

 

220

230

240

Phase

 

 

 

 

Single

Single

Single

 

 

 

 

 

 

 

 

Power Consumption

 

kW

Cool

 

1.90

1.90

1.90

 

 

 

Heat

 

1.88

1.88

1.88

Running Current

 

A

Cool

 

8.7

8.5

8.4

 

 

 

Heat

 

8.6

8.4

8.3

Starting Current

 

A

 

 

38

40

42

Power Factor

 

%

Cool

 

99

97

94

 

 

 

Heat

 

99

97

94

*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.

 

Panasonic

 

 

Power source

 

AC, 1~220, 230, 240V 50Hz

8

4 SPECIFICATION (COOLING ONLY TYPE )

4.1.CS-A18BTP / CU-C18BBP5

ITEM / MODEL

 

 

 

 

Indoor Unit

 

 

Outdoor unit

 

 

 

 

Main Body

 

 

CS-A18BTP

 

 

CU-C18BBP5

 

 

 

 

Remote

 

 

 

 

CZ-RD51P (Wired)

 

 

 

 

Control

 

 

 

 

CZ-RL01P (Wireless)

Cooling Capacity

 

 

kW

 

 

 

 

5.0

 

 

 

 

 

BTU/h

 

 

 

 

17,100

 

Refrigerant Charge-less

 

m

 

 

 

 

10

 

Standard Air Volume for High,

 

m3/min

Hi 17

 

Me 15

 

Lo 14

 

Hi 43

Medium and Low Speed

 

cfm

600

 

530

 

494

 

1518

Outside Dimension (H x W x D)

 

mm

 

210 x 1,245 x 700

 

685 x 800 x 300

 

 

 

 

inch

8-17/32 x 49-1/64 x 27- 9/16

 

26-31/32 x 31-1/2 x 11-13/16

Net Weight

 

 

kg

 

33

 

 

 

52

 

 

 

 

lbs

 

73

 

 

 

115

 

 

 

 

 

 

 

 

 

 

Piping Connection

Refrigerant

Gas

mm (inch)

 

 

O.D Ø 12.7 (1/2) Flared Type

 

 

 

Liquid

mm (inch)

 

 

O.D Ø 6.35 (1/4) Flared Type

 

 

Drain

 

mm

 

 

O.D Ø 20

 

 

I.D Ø 20 x 1

Compressor

Type, Number of Set

 

 

-

 

 

 

Hermetic-1 (Rotary), 1

 

 

Starting Method

 

 

 

-

 

 

 

Direct on-line starting

 

 

Motor

Type

 

 

-

 

 

 

2-pole single phase induction

 

 

 

 

 

 

 

 

 

 

 

motor

 

 

 

Input

kW

 

-

 

 

 

Cool 2.31

 

 

 

Rated Output

kW

 

-

 

 

 

1.5

Fan

Type, Number of Set

 

 

Sirocco fan-4

 

 

Propeller fan-1

 

 

Motor

Type

 

4-pole single phase induction motor

 

4-pole single phase induction

 

 

 

 

 

 

 

 

 

 

 

motor

 

 

 

Input

kW

 

0.08

 

 

 

0.11

 

 

 

Rated Output

kW

 

0.03

 

 

 

0.045

Air-heat Exchanger

 

 

 

 

 

Slit-fin type

 

 

Louvre-fin type

Refrigerant Control

 

 

 

 

Capillary tube

 

 

-

Refrigerant Oil (Charged)

 

litre

 

-

 

 

 

M60 (0.67)

Refrigerant (Charged)

 

kg

 

-

 

 

 

(1.6)

 

 

 

 

oz

 

 

 

 

 

 

(56)

Running

Control Switch

 

 

Wireless or Wired Remote Control

 

-

Adjustment

 

Room Temperature

 

Thermostat (Main Body)

 

-

Safety Devices

 

 

 

Internal protector for compressor, Internal thermostat for fan motor,

 

 

 

 

 

Crankcase heater, High pressure switch, Current transformer

Noise Level

 

 

dB (A)

 

 

Hi 40 Lo 36

 

 

Cooling: 54

 

 

 

 

Power level dB

 

 

Hi 57 Lo 53

 

 

Cooling: 67

1.Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)

ELECTRICAL DATA (50Hz)

ITEM / MODEL

 

 

 

 

CS-A18BTP, CU-C18BBP5

 

 

 

 

 

 

 

Condition by JIS B 8615

 

Volts

 

V

 

 

220

230

240

Phase

 

 

 

 

Single

Single

Single

Power Consumption

 

kW

Cool

 

1.90

1.90

1.90

Running Current

 

A

Cool

 

8.7

8.5

8.4

Starting Current

 

A

 

 

38

40

42

Power Factor

 

%

Cool

 

99

97

94

*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.

 

Panasonic

 

 

Power source

 

AC, 1~220, 230, 240V, 50Hz

 

 

 

 

 

 

 

 

9

5 TECHNICAL DRAWING

10

11

6 CIRCUIT DIAGRAM

12

13

14

15

16

17

18

19

20

Panasonic CS-A18BTP, CU-A18BBP5, CU-C18BBP5 Service Manual

21

22

23

7 OPERATING INSTRUCTION

7.1.Wired Remote Control (OPTIONAL PARTS)

NOTES:

Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct.

The illustration above is for explanatory purposes only. The appearance will be different during actual operation.

Do not operate the remote control with wet hands. Otherwise, electric shock or malfunction may occur.

Do not press the remote control buttons with sharp object as this may damage the remote control.

Buttons marked with * are not needed for normal operation. If one of these buttons is pressed by mistake, press the same button once more to cancel the operation.

When the power resumed after power failure, the unit will restart automatically with all the previous settings preserved by the memory function. (Auto restart function)

24

7.2.Wireless Remote Control (OPTIONAL PARTS)

NOTES:

Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct.

The illustration above is for explanatory purpose only. The appearance will be different during actual operation.

If using the wireless remote control in conjunction with the wired remote control, the settings made from the wireless remote control will appear on the wired remote control display (except when making timer settings).

Buttons marked with * are not needed for normal operation. If one of these buttons is pressed by mistake, press the same button once more to cancel the operation.

When the power resumed after power failure, the unit will restart automatically with all previous settings preserved by the memory function. (Auto restart function)

25

8 REFRIGERATION CYCLE

CS-A18BTP/CU-A18BBP5

26

CS-A18BTP/CU-C18BBP5

27

9 OPERATION RANGE

Power Supply

The applicable voltage range for each unit is given in the following table. The working voltage among the three phases must be balanced within a 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% of the rated voltage.

Power Supply

MODEL

Unit Main Power

 

 

Applicable Voltage

 

Phase, Volts

 

Hz

Max

 

Min

 

 

 

 

 

 

 

A18BB

1~220

 

50

242

 

198

 

1~230

 

50

253

 

207

 

 

 

 

 

 

 

 

1~240

 

50

264

 

216

Indoor and Outdoor Temperature

 

 

 

 

 

Cooling only type

 

 

 

 

 

 

Model 50Hz CU-C18BBP5

 

 

 

 

 

 

 

 

 

 

 

 

Operating

Hz

Indoor Temp. (D.B./W.B.) (°C)

Outdoor Temp. (D.B./W.B.) (°C)

 

 

 

Max

Min

Max

Min

 

Cooling

50/60

32/23

21/15

43/-

-5/-

 

 

 

 

 

 

 

Heat pump type

Model 50Hz CU-A18BBP5

Operating

Hz

Indoor Temp. (D.B./W.B.) (°C)

Outdoor Temp. (D.B./W.B.) (°C)

 

 

Max

Min

Max

Min

 

 

 

 

 

 

Cooling

50

32/23

21/15

43/-

-5/-

Heating

50

27/-

16/-

24/18

-10/-

 

 

 

 

 

 

28

10 PIPE LENGTH

■ CORRECTION OF COOLING CAPACITY AND HEATING CAPACITIES

Correction of cooling and heating capacities according to the connecting pipe length.

The data of cooling capacities (marked on the name plate) are based on 5 meters connecting pipe and horizontal installation. For other pipe length of other installation multiply by the following correction factor to determine the revised cooling capacity.

REFRIGERANT ADDITIONAL CHARGE

1.Piping installation by standard piping

At the time of shipment from the factory, this unit is charged with enough refrigerant for an equivalent pipe length of 10m. (Refer to the following table)

But when the piping length exceeds 10m, additional charge is required according to the following table.

Example: CU-C18BBP5

In case of 11m long pipe (one way), the amount of refrigerant to be replenished is: (11 - 10) x 20 = 20g

29

Cooling only type

Model Name

 

Standard piping specification

 

 

Liquid piping (dia.mm)

Gas piping (dia.mm)

Gas charge-less length

Additional gas volume

 

 

 

(m)

(g/m)

 

 

 

 

 

CU-C18BBP5

6.35

12.70

10

20

 

 

 

 

 

Heat pump type

Model Name

 

Standard piping specification

 

 

Liquid piping (dia.mm)

Gas piping (dia.mm)

Gas charge-less length

Additional gas volume

 

 

 

(m)

(g/m)

CU-A18BBP5

6.35

12.70

10

20

2.Piping installation by existing piping

The above models change the liquid pipe size of the previous series. It is to use the existing piping by adjusting the refrigerant gas volume.

Please do correct piping installation referring to the above table.

Attention

Please do not decrease the gas piping size. (It causes the breakdown of the compressor).

The equivalent piping length and the cooling and heating capacity change rate are same as the standard piping specification.

30

Loading...
+ 81 hidden pages