Panasonic Cs W50btp Cu W50bbp8 Cu V50bbp8 Repair Manual

							 1 SERVICE INFORMATION 3
 2 FEATURES 
4
 3 SPECIFICATION (HEAT PUMP TYPE ) 
9
 4 SPECIFICATION (COOLING ONLY TYPE ) 
10
 5 TECHNICAL DRAWING 
11
 6 CIRCUITDIAGRAM 
13
 7 OPERATING INSTRUCTION 
25
 8 REFRIGERATION CYCLE 
27
 9 OPERATIO N RANGE 
28
 10  PIPE LENGTH 
29
 11  OPERATING CHARACTERISTIC 
31
 12  FAN PERFORMANCE 
32
© 2002 Matsushita Industrial Corporation. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-W50BTP CU-V50BBP8
CS-W50BTP CU-W50BBP8
 13  SAFETYDEVICE 33
 14  COMPONENT SPECIFICATION 
34
 15  CAPACITY AND POWERCONSUMPTION 
35
 16  DISCHARGE AND SUCTION PRESSURE 
38
 17  REACHING DISTANCE 
39
 18  SOUNDDATA 
40
 19  TWIN AND TRIPLE 
42
 20  WIRING MISTAKE PREVENTION 
47
 21  TEST OPERATIO N AND SELF DIAGNOSIS 
48
 22  SETTING OF SAVEENERGY AND THERMISTOR SWITCH 
52
 23  GROUP CONTROL 
53
 24  TROUBLESHOOTING  
54
AIR CONDITIONER
CONTENTS
 Page  Page
ORDER NO. MAC0210059C2 
						

							 25  EMERGENCY OPERATIO N 59
 26  CONTROL 
60
 27  WIRED REMOTE CONTROLINSTALLA TION MANUAL 
70
 28  WIRELESS REMOTE CONTROLINSTALLA TION MANUAL 
75 29  INSTALLA TION (INDOOR UNIT) 
82
 30  INSTALLA TION (OUTDOOR UNIT) 
92
 31  REPLACEMENT PARTS 
104
2 
						

							1 SERVICE INFORMATION
Caution:
OPb 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).
OPb 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 fortwin / triplecontrol or group control
automatically when main powersupply is switched on.
(Manual address setting is also possible by usingDSW1 switch on the indoor unit P.C. board.) However,this address setting is
onlypossible 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.
Theref ore, please inspect the address setting.
 1. LCD display of the wiredremote control is not illuminated although the main powersupply switch is ‘on’.
 2. LCD display had indicated as normal illumination when power supply switch is ‘on’, however outdoo r 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. Whenchanging the connection or combination of units due to re-installation etc.
 
    • 
• •  • 
W hen changing the system from twin to triple (triple to twin).
 
    • 
• •  • 
W hen changing the system from group control to normal one to one system.
 
    • 
• •  • 
W hen 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 powersupply 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 mainpower supply switch is ‘on’, the P.C. board willautomatically memorize the connecting system.
Consequently , when initial power supply is ‘on’, there mustn’t be any interchanging of units even of the same type andsame
capacity unit.
Theref ore, connection of the unit to another system is prohibited.
3 
						

							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 49 dB noise (W50BT - 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 speed 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. Automaticswinging louvre
 
    • 
• •  • 
The horizon tal air flow angle is a wide 100 degrees
(manual). The louvre can swing automatically (through 70
degrees vertically) using theremote 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.
2 FEATURES
4 
						

							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 installa tion.
2.3.2. Two installation methods :
standard andwall
 
    • 
• •  • 
In additio n to the standard (1) ceiling installa tion, a wall (2)
installa tion method (using a wall-hanging bracket) is
available for cases where the ceiling is too high for the main
unit to be suspended.
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).
2.5. Easy maintenance
2.5.1. Long life filter (standard
equipment)
 
    • 
• •  • 
In general office environments, cleanin g (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.
2.5.2. Maintenance is possible from
underneath the unit.
 
    • 
• •  • 
If the bottom panel is detached, the drain pan can then be
removed and installe d 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 beside s high, medium and low. It
automatically adjusts the fan speed according to the indoor
unit’s temperature.
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.
5 
						

							2.9.1. Product features
 
    • 
• •  • 
Low-noise design improves comfort in surrounding
areas
 1. The noise-suppressing winglet fan is a result of new
research into vane design theory. The unique curved
shape suppresses the generation of vortexes, thus
reducing air flow noise.
 2. The adoption of double -orifice rings reduces air
passage resistance.
 3. Strengthening of the noise insulation materials in the
compressor and the sealing-in of mechanical noise
allows vibration noise to be greatly enclosed and
suppressed.
 4. The heat exchan ger has an L-shaped design to allow air
to flow more smoothly.
 5. Noise is automatically reduced further during night-time
operation with lower outdoor air temperatures.
2.10. 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 outdoo r units need to
be replaced.
 
    − 
− −  − 
For example, liquid and gas pipesfrom 10years 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
supplie d.)
2.9. Low-noise outdoor units
6 
						

							 
    • 
• •  • 
Additional refrigerant charging unnecessary for 30 m
 
    − 
− −  − 
All models do not require any additio nal charging of
refrigerant for 30 m of pipe length. This makes
installa tion much easier.
 
    • 
• •  • 
Drain water dripping-prevention structure
 
    − 
− −  − 
The base of the outdoo r 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 installe d to a wall.
 
    • 
• •  • 
Save space design allows units to be installed side-by-
side continuously
 
    − 
− −  − 
Servicing after installa tion can be carried out by
removing the front covers.
 
    • 
• •  • 
Long pipe design for refrigerant pipes
 
    − 
− −  − 
Maximum piping length of 50m for all models.
 
    • 
• •  • 
Internal pipe connection
 
    − 
− −  − 
Pipes are connected inside the units (inside the side
covers), making the final appearance more attractive.
 
    − 
− −  − 
Pipes can be diverted outward in any of four directions
(forward, right, down, rear).
 
    − 
− −  − 
Small liquid pipe diameters of 9.52mm for 50BB models,
making installa tion work much easier.
 
    • 
• •  • 
Centralized draining method
 
    − 
− −  − 
Even when multiple outdoo r units are installe d to a wall,
the drain outlets can be concentrated into a single drain
pipe. This makes installa tion easier and also improves
appearance.
2.11. 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 simultaneousl y
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 outdoo r
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 remote-
control functions such as automatic louvre operation and
cooling or heating mode are automatically detected and set
instantly.
7 
						

							2.12. Wired Remote Control
 
    • 
• •  • 
The new design include s an easily- visible red pilot lamp.
The power can be turned on and off at a single touch,
without openin g 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 installa tion work easy. (10 m
cable supplie d as accessory.)
2.13. 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)
WiredWireless
Heat PumpCZ-RD51PCZ-RL51P
CoolingCZ-RD51PCZ-RL01P
NOTE: Both of the above remote control is packed separately
from the indoor unit.
2.14. Group Control Equipment
8 
						

							3 SPECIFICATION (HEAT PUMP TYPE )
CS-W50BTP / CU-W50BBP8
ITEM / MODELIndoor UnitOutdoor unit
Main BodyCS-W50BTPCU-W50BBP8
RemoteCZ-RD51P (Wired)
ControlCZ-RL51P (Wireless)
Cooling CapacitykW14.0
BTU/h47,700
Heating CapacitykW16.0
BTU/h54,600
Refrigerant Charge-lessm30
Standard Air Volume for High Speedm3/min35
cfm1236
Outside Dimension (H x W x D)mm250 x 1600 x 7001220 x 1100 x 320
inch9-27/32 x 62-31/32 x 27-9/1648-1/24 x 43-5/16 x 12-19/32
Net Weightkg47115
lbs104254
Piping
ConnectionRefrigerantGasmm (inch)O.D Ø 19.05 (3/4) Flared Type
Liquidmm (inch)O.D Ø 9.52 (3/8) Flared Type
DrainmmO.D Ø 20I.D Ø 20 x 1
CompressorType, Number of Set-Hermetic-1 (Scroll), 1
Starting Method-Direct on-line starting
MotorType-2-pole 3-phase induction motor
Rated OutputkW-4.10
FanType, Number of SetSirocco fanPropeller fan
MotorType4-pole single phase induction motor6-pole single phase induction motor
Rated OutputkW0.140.055 x 2
Air-heat ExchangerSlit-fin typeX-Louvre-fintype
Refrigerant ControlCoolCapillary tube-
Heat-Capillary tube
Refrigerant Oil (Charged)litre-MMMAPOE
Refrigerant (Charged)kg-R407C (4.4)
(oz)(155)
Running
AdjustmentControl SwitchWireless or Wired RemoteControl-
Room Temperatu reThermosta t (Main Body)-
Safety DevicesInternal protector for compressor, Internal thermostat for fan motor,
Crankcase heater, High and heating pressure switch, Current transformer
Noise LeveldB (A)Hi 49 Lo 45Cooling 56, Heating 58
Power level dBCooling : Hi 66 Lo 62
Heating : Hi 66 Lo 62Cooling 69, Heating 71
 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°CW.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°CW.B.(42.8°F W.B.)
ELECTRICAL DATA (50Hz)
ITEM / MODELCS-W50BTP, CU-W50BBP8
Condition by JIS B 8615
VoltsV380400415
Phase3N3N3N
Power ConsumptionkWCool5.355.355.35
Heat5.455.455.45
Running CurrentACool9.29.29.2
Heat9.29.29.2
Starting CurrentA696969
Power Factor%Cool888481
Heat908682
*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
PanasonicPower sourceAC, 3N~380V, 400V, 415V 50Hz
9 
						

							4 SPECIFICATION (COOLING ONLY TYPE )
CS-W50B TP / CU-V50BB P8
ITEM / MODELIndoor UnitOutdoor unit
Main BodyCS-W50BTPCU-V50BBP8
RemoteCZ-RD51P (Wired)
ControlCZ-RL01P (Wireless)
Cooling CapacitykW14.0
BTU/h47,700
Refrigerant Charge-lessm30
Standard Air Volume for High Speedm3/min35
cfm1236
Outside Dimension (H x W x D)mm250 x 1600 x 7001220 x 1100 x 320
inch9-27/32 x 62-31/32 x 27-9/1648-1/24 x 43-5/16 x 12-19/32
Net Weightkg47112
lbs104247
Piping
ConnectionRefrigerantGasmm (inch)O.D Ø 19.05 (3/4) Flared Type
Liquidmm (inch)O.D Ø 9.52 (3/8) Flared Type
DrainmmO.D Ø 20I.D Ø 20 x 1
CompressorType, Number of Set-Hermetic-1 (Scroll), 1
Starting Method-Direct on-line starting
MotorType-2-pole 3-phase induction motor
Rated OutputkW-4.10
FanType, Number of SetSirocco fanPropeller fan
MotorType4-pole single phase induction motor6-pole single phase induction motor
Rated OutputkW0.140.055 x 2
Air-heat ExchangerSlit-fin typeX-Louvre-fintype
Refrigerant ControlCapillary tubeCapillary tube
Refrigerant Oil (Charged)litre-MMMAPOE
Refrigerant (Charged)kg-R407C (4.4)
(oz)(155)
Running
AdjustmentControl SwitchWireless or Wired RemoteControl-
Room Temperatu reThermosta t (Main Body)-
Safety DevicesInternal protector for compressor, Internal thermostat for fan motor,
Crankcase heater, High pressure switch, Current transformer
Noise LeveldB (A)Hi 49 Lo 4556
Power level dBHi 66 Lo 6269
 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°CW.B.(75.2°F W.B.)
ELECTRICAL DATA (50Hz)
ITEM / MODELCS-W50BTP, CU-V50BBP8
Condition by JIS B 8615
VoltsV380400415
Phase3N3N3N
Power ConsumptionkWCool5.355.355.35
Running CurrentACool9.29.29.2
Starting CurrentA696969
Power Factor%Cool888481
*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
PanasonicPower sourceAC, 3N~380V, 400V, 415V 50Hz
10