Panasonic Cs W50bd2p Cu V50bbp8 Cu W50bbp8 Repair Manual

							21 
						

							7 OPERATING INSTRUCTION
7.1. Wired Remote Control
Name and function of each part
22 
						

							23 
						

							8 REFRIGERATION CYCLE
8.1. Heating Model
CS-W50BD2P / CU-W50BBP8
8.2. Cooling Only Model
CS-W50BD2P / CU-V50BB P8
24 
						

							9 OPERATION RANGE
The applicable voltage range for each unit is given in “thefollowing table”. The workingvoltage among the three phases
must be balanced within 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher
than 85% of the rated voltage.
Power Supply
Model
CU-Unit Main PowerApplicable Voltage
Phase, VoltsHzMaximumMinimum
W50BBP8 V50BBP83N~38050418342
3N~40050440360
3N~41550457374
Indoor and Outdoor Temperature
Q
QQ Q
Coolingonly type
Model 50Hz ... V50BB P8
OperatingHzIndoor Temp. (D.B./W.B.) (°C)Outdoor Temp. (D.B./W.B.) (°C)
MaximumMinimumMaximumMinimum
Cooling5032/2321/1543/--5/-
Q
QQ Q
Heat pumptype
Model 50Hz ...W50BBP8
OperatingHzIndoor Temp. (D.B./W.B.) (°C)Outdoor Temp. (D.B./W.B.) (°C)
MaximumMinimumMaximumMinimum
Cooling5032/2321/1543/--5/-
Heating5027/-16/-24/18-10/-
25 
						

							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 7.5 metres connecting pipe and horizontal
installation.
(Cooling)
Equivalent Length = actual pipe length +
number of elbow x ELE
ELE: equiva lent length ofelbow.
10.2. REFRIGERANT ADDITIONAL
CHARGE
 
    • 
• •  • 
The piping length exceeds 30 metres.
APPLICABLE FOR ALLMODELS
Before shipment, this air conditioner is filled with the rated
amoun t of refrigerant subject to 30m piping length. (The
rated amoun t of refrigerant is indicated on the name plate.)
But when the piping length exceed s 30m, additio nal charge
is required according to the following table.For other pipe length of other installation multiply
by the following correction factor to determine the
revised cooling capacity.
(Heating)
Outer diameter of gas
side pipe mm (inch)
9.52 (3/8)0.18
12.7 (1/2)0.20
15.88 (5/8)0.25
19.05 (3/4)0.35
ModelRef. Charge
2.5HP20g per 1m
3~6HP50g per 1m
Example:
CS-W50BD2P
In case of 50m long pipe (one-way), the
amoun t of refrigerant to be replenished is:
(50 - 30) x 50 = 1,000g
10 PIPE LENGTH
10.1. CORRECTION OF COOLING AND HEATING CAPACITIES
26 
						

							10.3. Piping installation by existing piping
Q
Coolingonly type(50Hz)
Model NameStandard piping specification
Liquid piping (dia.mm)Gas piping (dia.mm)Gas charge-less length
(m)Additional gas volume (g/m)
CU-V50BBP89.5219.053050
Q
Heat pumptype(50Hz)
Model NameStandard piping specification
Liquid piping (dia.mm)Gas piping (dia.mm)Gas charge-less length (m)Additional gas volume
(g/m)
CU-W50BBP89.5219.053050
Attention
 
    • 
• •  • 
Please never 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.
27 
						

							11 OPERATING CHARACTERISTIC
HEAT PUMPMODEL
ModelMain PowerCompressor MotorIndoor UnitOutdoor UnitElectrical Data (50Hz)
SourceFan MotorFan MotorR.CIPT
VoltageFrequencyS.C.R.C.(A)IPT(kW)R.C.IPTR.C.IPT(A)(kW)
(V)(Hz)(A)COOL / HEATCOOL / HEAT(A)(kW)(A)(kW)COOL / HEATCOOL / HEAT
CS-W50BD2P38050698.57 / 8.574.94 / 5.040.910.190.990.229.20 / 9.205.35 / 5.45
CU-W50BBP840050698.55 / 8.554.91 / 5.010.930.211.020.239.20 / 9.205.35 / 5.45
41550698.53 / 8.534.88 / 4.980.960.221.040.259.20 / 9.205.35 / 5.45
COOLING ONLY MODEL
CS-W50BD2P38050698.574.940.910.190.990.229.205.35
CU-V50BBP840050698.554.910.930.211.020.239.205.35
41550698.534.880.960.221.040.259.205.35
Legend:
S.C.: Starting Current
R.C.: Runnin g Current
IPT: Power Consumption
28 
						

							12 FAN PERFORMANCE
O
OO O
CS-W50BD2P
ModelCS-W50BD2P
External Static
PressureFan
SpeedCurrent
(A)Power Consumption
(kW)Power Factor
(%)RPM
(r/min)Air Volume
(m3/min)
98pA (10mmAq)Hi2.440.4998.9140645
90Pa (9.2mmAq)Me1.740.3898.8135043
79Pa (8.1mmAq)Lo1.370.3198.3126540.5
O
OO O
CS-W50BD2P
Fan Performance Curve
29 
						

							13 SAFETY DEVICE
 
    • 
• •  • 
INDOOR UNIT
Indoor unitModelCS-
W50BD2P
For fan motor protection
InternalOFF°C135
Protector (49F)ON°C87
For control protection
FuseCUTA5
 
    • 
• •  • 
OUTDOOR UNIT
Outdoor unitHeat
pump
model50HzCU-
W50BBP8
Cooling
only
model50HzCU-
V50BBP8
For refrigerant cycle
High pressureOFFMPa3.1
switch (63H1)ONMPa2.3
For compressor
Over current protection
Heat pump
modelOFFA15
Cooling
only modelOFFA
50Hz15
RESET-Automatic
Discharge temp.
protection
Discharge temperature
thermistor (Th1)Compressor
OFF°C120
Liquid compress
protection
Crankcase heaterInput
powerW34~41
Compressor protection
Internal protectorOFF°C
50Hz145
ON°C
50Hz61
Trip
time°C3-10sec/
48A
For fan motor
protectionOFF°C
50Hz135
Internal protector
(49F)ON°C
50Hz85
Heating control
(Heat pump only)
Pressure switchOFFMPa2.50
(Fan speed)(63H2)ONMPa2.05
Cooling control
Heat exchanger outlet
temperature thermistor
(Th2)Control
methodTh30°C---High speed
Th