Panasonic CS-A18BB4P Service Manual
1 SERVICE INFORMATION 3
2 FEATURES
4
3 SPECIFICATION (HEAT PUMP TYPE )
7
4 SPECIFICATION (COOLING ONLY TYPE )
9
5 TECHNICAL DRAWING
10
6 CIRCUIT DIAGRAM
12
7 OPERATING INSTRUCTION
24
8 REFRIGERATION CYCLE
26
9 OPERATION RANGE
27
© 2002 Matsushita Industrial Corporation Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-A18BB4P CU-A18BBP5
CS-A18BB4P CU-C18BBP5
10 PIPE LENGTH 28
11 OPERATING CHARACTERISTIC
30
12 FAN PERFORMANCE
31
13 SAFETY DEVICE
32
14 COMPONE NT SPECIFICATION
33
15 CAPACITY AND POWER CONSUMPTION
34
16 DISCHARG E AND SUCTION PRESSURE
37
17 POSITION OF THE CENTER GRAVITY
38
AIR CONDITIONER
CONTENTS
Page Page
ORDER NO. MAC0208026C8
18 REACHING DISTANCE 39
19 SOUND DATA
40
20 TWIN AND TRIPLE
42
21 WIRING MISTAKE PREVENTI ON
47
22 TEST OPERATIO N AND SELF DIAGNOSI S
48
23 SETTING OF SAVE ENERGY AND THERMISTOR SWITCH
52
24 GROUP CONTROL
53
25 TROUBLESHOOTING
54
26 EMERGEN CY OPERATIO N
59
27 CONTROL
60
28 WIRED REMOTE CONTROL INSTALLATION MANUAL
71
29 WIRELESS REMOTE CONTROL INSTALLATION MANUAL
76
30 INSTALLATION (INDOOR UNIT)
83
31 INSTALLATION (OUTDOOR UNIT)
92
32 REPLACEM E NT PARTS
102
33 HEAT ING CAPACITY PERFORMANCE DATA
111
34 COOLING CAPACITY PERFORMANCE DATA
112
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 Cassette / NEW Outdoor Unit.
The new Cassette / 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
2.1. Variety of excellent features
•
• •
•
Compact design
Compact design 240 mm height, 840 mm width and 840
mm depth.
•
• •
•
Automatic restart function
When the electric power resumes after a power failure, the
unit will automatically restarts the operation in the prefailure mode.
•
• •
•
Auto fan mode (indoor unit)
Auto fan mode is added besides HI, ME and LO.
It automatically adjusts the fan speed according to the
indoor temperature.
•
• •
•
Dry mode function
Dry mode can make a comfortable indoor environment
during wet season.
•
• •
•
Quiet operation
The sound level is 37dB (A) for 18BB model during High
Fan speed and suitable for offices, shops, homes etc, when
quiet operation is essential.
•
• •
•
Auto Swing Louvre
The air flow angle can be changed automatically (or
manually) to an angle between 10° to 70° using the remote
control.
•
• •
•
Low ambient cooling operation
Cooling operation is possible at outdoor temperature of
-5°C (2.5 HP ~ 6 HP models), 10°C (2 HP model).
•
• •
•
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.
•
• •
•
Hot start system (heat pump models)
•
• •
•
Pipes and drainage
Built-in upward draining mechanism.
2.2. Greatly improved workability
increases system renewal
capability
•
• •
•
Pipes that are one size larger can also be connected for
renewal.
−
− −
− If renewing the system, existing refrigerant pipes can be
utilized so that only the indoor and outdoor units need to
be replaced.
−
− −
− 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.)
•
• •
•
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
2 FEATURES
4
−
− −
− Maximum piping length of 25m for all models.
2.3. 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.
2.4. 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 built-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.)
2.5. Wireless Remote Control
•
• •
• 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.
5
2.6. Group Control Equipment
6
3 SPECIFICATION (HEAT PUMP TYPE )
3.1. CS-A18BB4P / CU-A18BBP5
ITEM / MODEL Indoor Unit Outdoor unit
Main Body CS-A18BB4P CU-A18BBP5
Panel CZ-BT01P
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 240 x 840 x 840 685 x 800 x 300
inch 9-7/16 x 33-1/24 x 33-1/24 26-31/32 x 31-1/2 x 11-13/16
Net Weight kg 26 56
lbs 57 123
Piping
Connection
Refrigerant Gas mm (inch) O.D Ø 12.70 (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/Heat 2.31/2.30
Rated Output kW - 1.5
Fan Type, Number of Set Turbo fan-1 Propeller fan-1
Motor Type 6-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
Adjustment
Control Switch Wireless or Wired Remote Control 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 Cool dB (A) Hi 37 Lo = 33 Hi 54
Heat Hi 37 Lo = 33 Hi 55
Cool Power level dB Hi 52 Lo = 48 Hi 67
Heat Hi 52 Lo = 48 Hi 68
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.)
7
ELECTRICAL DATA (50Hz)
ITEM / MODEL CS-A18BB4P, 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, 1~220V, 230V, 240V 50Hz
8
4 SPECIFICATION (COOLING ONLY TYPE )
4.1. CS-A18BB4P / CU-C18BBP5
ITEM / MODEL Indoor Unit Outdoor unit
Main Body CS-A18BB4P CU-C18BBP5
Panel CZ-BT01P
Remote CZ-RD51P (Wired)
Control CZ-RL01P (Wireless)
Cooling Capacity kW 5.00
BTU/h 17,100
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 240 x 840 x 840 685 x 800 x 300
inch 9-7/16 x 33-1/24 x 33-1/24 26-31/32 x 31-1/2 x 11-13/16
Net Weight kg 26 52
lbs 57 115
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 Turbo fan-1 Propeller fan-1
Motor Type 6-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
Adjustment
Control Switch Wireless or Wired Remote Control 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 Cool dB (A) Hi 37 Lo = 33 Hi 54
Cool Power level
dB
Hi 52 Lo = 48 Hi 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-A18BB4P, 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, 1~220V, 230V, 240V 50Hz
9
5 TECHNICAL DRAWING
10
11
6 CIRCUIT DIAGRAM
12
13
14
15
16
17
18
19
20
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-A18BB4P / CU-A18BBP5
CS-A18BB4P / CU-C18BBP5
26
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
CU-A18BBP5 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/-
27
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.
28
Attention
■■■■ 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
■ Cooling only type
Model Name Standard piping specification
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge-less length
(m)
Additional gas volume
(g/m)
CU-C18BBP5 6.35 12.7 10 20
■ Heat pump type
Model Name Standard piping specification
Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge-less length
(m)
Additional gas volume
(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.
•
• •
• 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.
29
11 OPERATING CHARACTERISTIC
Model Main Power Source Compressor Motor Indoor Unit Fan
Motor
Outdoor unit Fan
Motor
Voltage Frequency S.C. R.C. (A) IPT (kW) R.C. IPT R.C. IPT
(V) (Hz) (A) Cool/Heat Cool/Heat (A) (kW) (A) (kW)
COOLING ONLY
MODEL
CS-A18BB4P 220 50 38 7.9 / - 1.74 0.30 0.06 0.50 0.10
CU-C18BBP5 230 50 40 7.7 / - 1.74 0.30 0.06 0.50 0.10
240 50 42 7.6 / - 1.74 0.30 0.06 0.50 0.10
Model Main Power Source Compressor Motor Indoor Unit Fan
Motor
Outdoor unit Fan
Motor
Voltage Frequency S.C. R.C. (A) IPT (kW) R.C. IPT R.C. IPT
(V) (Hz) (A) Cool/Heat Cool/Heat (A) (kW) (A) (kW)
HEAT PUMP
MODEL
CS-A18BB4P 220 50 38 7.9 / 7.9 1.74 / 1.72 0.30 0.06 0.50 0.10
CU-A18BBP5 230 50 40 7.7 / 7.7 1.74 / 1.72 0.30 0.06 0.50 0.10
240 50 42 7.6 / 7.6 1.74 / 1.72 0.30 0.06 0.50 0.10
Legend :
S.C. = Starting Current
R.C. = Running Current
IPT = Power Consumption
30
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