Panasonic CS-W50BD3P User manual

1 SERVICE INFORMATION 2
2 FEATURES 3
3 SPECIFICATION (HEAT PUMP TYPE) 9
4 SPECIFICATION (COOLING ONLY TYPE) 10
5 TECHNICAL DRAWING 11
6 CIRCUIT DIAGRAM 13
7 OPERATING INSTRUCTION 22
8 REFRIGERATION CYCLE 24
9 OPERATION RANGE 25
10 PIPE LENGTH 26
11 OPERATING CHARACTERISTIC 28
12 FAN PERFORMANCE 29
13 SAFETY DEVICE 30
14 COMPONENT SPECIFICATION 31
© 2002 Matsushita Industrial Corporation. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-W50BD3P CU-V50BBP8
CS-W50BD3P CU-W50BBP8
15 CAPACITY AND POWER CONSUMPTION 33
16 DISCHARGE AND SUCTION PRESSURE 34
17 SOUND DATA 35
18 TWIN OPERATION 37
19 WIRING MISTAKE PREVENTION 42
20 TEST OPERATION AND SELF DIAGNOSIS 43
21 SETTING OF SAVE ENERGY AND THERMISTOR SWITCH 47
22 GROUP CONTROL 48
23 TROUBLE SHOOTING 49
24 EMERGENCY OPERATION 55
25 CONTROL 56
26 INSTALLATION (INDOOR UNIT) 66
27 INSTALLATION (OUTDOOR UNIT) 78
28 REPLACEMENT PARTS 90
AIR CONDITIONER
CONTENTS
Page Page
ORDER NO. MAC0210060C2

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 Cassette / NEW Outdoor Unit.
The new Hide-away / New Outdoor models are possible to have address setting for twin / triple control or group control
by automatic when main power supply is switched on.
(Manual address setting is also possible by using Dip switch on Indoor unit P.C. board.) However, this address setting is only
possible when made proper wiring connection and also Indoor unit should be original virgin unit.
1.1. Example of trouble at test operation
If found out as following phenomenon at test operation on site, it may have possibility of wrong address setting.
Therefore, please ensure of the address setting.
1.LCD display of wired remote control had not illuminate 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 ON/OFF switch is ‘on’.)
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 as master and slave etc.
1.2. Caution of test operation
Do not touch the remote control switch 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 main power supply switch is ‘on’, the P.C. board will automatically memorized the connecting system.
Consequently, when initial power supply is ‘on’, there will not be interchangeability of units even of the same type and same
capacity unit. Therefore unable to connect the unit to another system.
2

2.1. Variety of excellent features
2.1.1. Compact design, height 27 cm
• • •
• The height has been reduced to 27 cm, the equipment can
be installed in limited spaces.
2.1.2. Versatile installation
• • •
• The indoor unit is designed in order that air will also enter
from below, for easier installation under different conditions.
• • •
• The equipment has two drain outlets on the right and left
side for adoption to the installation conditions in the
building.
2.1.3. Easy maintenance
• • •
• Equipped with a filter as standard. The filter can be
removed in three directions for easier maintenance.
2.1.4. Static pressure selection
• • •
• The static pressure is selectable; 5mmAq or 7mmAq. The
static pressure can be selected according to the condition
of the duct.
2.1.5. Quiet operation
• • •
• The sound level is as low as 40dB (A) for 6HP. The models
is ideal for installation in offices, shop and houses where
quiet operation is important.
2.1.6. Auto fan mode operation (indoor
unit)
• • •
• Auto fan mode is added to existing modes Hi, Me and Lo.
It automatically adjusts the fan speed according to the
indoor temperature.
2.1.7. Dry mode function
• • •
• Dry mode can make a comfortable indoor environment
during wet season.
2.1.8. Automatic changeover function
(heat pump models)
• • •
• The unit automatically switches between cooling and
heating in accordance with operating load in order to
maintain a confortable indoor temperature.
2.1.9. Common design for Indoor unit
and Remote Control
• • •
• The indoor unit and the wired remote control are design as
a common specification between Cooling only and Heat
Pump models.
2.1.10. 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.
• • •
• 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 accessories).
2 FEATURES
3

[Product features]
2.2.1. Low-noise design improves 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 reduces 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 exchanger 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.
2.2.2. Automatic restart function
When the electric power resumes after a power failure, the unit
will automatically restarts the operation in the pre-failure mode.
2.2.3. Low ambient cooling operation
Cooling operation is possible at outdoor temperature of -5°C.
2.2. New low-noise outdoor units
4

2.3.1. 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 units 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 for one size
larger. Effective utilization of materials reduces working
time and trouble. (Adaptor sockets are not supplied.)
2.3.2. Additional refrigerant charging
unnecessary for 30 m
• • •
• All models do not require any additional charging of
refrigerant for 30 m of pipe length. This makes installation
much easier.
2.3.3. 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. Body connecting a drain elbow and a discharge pipe,
water leakages can be prevented even when the unit is
installed against a wall.
2.3.4. Space saving design allows units
to be installed side by side
continuously
• • •
• Servicing after installation can be carried out by removing
the front covers.
2.3.5. Easy test operation
• • •
• Test operation can be carried out for both indoor and
outdoor units.
2.3.6. Long pipe design
Max piping length: 50 (m) 18BB~50BB
Height difference/equivalent pipe length 30/50
2.3.7. 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 model,
making installation work much easier.
2.3. Greatly improved workability increases system renewal capability
5

2.3.8. Centralized draining method
• • •
• Even when multiple outdoor units are installed to a wall, the
drain outlets can be concentrated into a single drain pipe.
This makes installation easier and also improve
appearance.
2.4. A brand-new control method
using the latest in technology
2.4.1. Power supply wiring is also easier
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 drives
2.4.5. Twin operation
• • •
• Simultaneous air conditioning of wide spaces and corners is
possible. Indoor units of different horsepowers and models
can even be used in combination.
• • •
• Master unit and slave-units can be set automatically in twin
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.
wires and signal wires. If a connection error is made, the
relay does not operate and current does not flow to the
circuit boards.
2.4.2. Separate indoor/outdoor unit
power supplies
The power supply can be connected to (1) just the outdoor
units, or (2) to both indoor and outdoor units.
2.4.3. 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 configuration
(twin or triple format) and remote-control functions such as
cooling only or heat pump model are automatically detected
and set instantly.
2.4.4. Group control equipment
6

Q
QQ
QTwin combination table
2.5. New refrigerant Series [R407C]
pipe installation
2.5.1. Procedure
• • •
• The new refrigerant (R407C) has a different composition to
the previously-used refrigerant (R22), so some contents
and method of pipe installation and charging work are
different from before. Care should be taken when carrying
out this work.
2.5.2. Installation and precautions
2.5.2.1. Before installation
1.Determine the installation division.
2.Check the refrigerant to be used.
• • •
• Check that the refrigerant is R407C.
• • •
• Check that the gauge pressure is at a maximum of 3.3
MPa.
3.Make a drawing of the Installation.
2.5.2.2. Installation
1.Install the sleeve and the insert.
2.Install the indoor unit.
3.Install the refrigerant piping.
• • •
• Pipe materials
• • •
• Refrigerant pipes which were previously used to carry
R22 must not be re-used. If replacing the indoor and
outdoor units, be sure to replace all refrigerant pipes
also.
• • •
• Check the pipe thickness.
• • •
• Clean the inside of the pipes.
• • •
• When storing pipes, seal both ends of the pipes and
store them indoors to prevent water, dust and other
foreign particles from getting inside.
• • •
• Take care not to let any foreign particles (oxide scales,
water or dirt) get inside the refrigerant lines (same as for
R22).
QRefrigerant pipe storing
Location Installation period Storing method
Outdoors 1 month or more Pinching
Less than 1 month Pinching or taping
Indoors Any
• • •
• Pinching method
Close off the ends of the pipes with pliers or similar tool
and seal the opening by brazing.
• • •
• Taping method
Wind PVC tape around the ends of the pipes to seal the
openings.
• • •
• Do not work for refrigerant piping on outdoor on rainy
days.
• • •
• Seal by brazing.
• • •
• Be sure to use only a non-oxidizing brazing material.
(Use nitrogen. Anti-oxidants cannot be used.)
• • •
• When brazing pipes together, or when brazing copper
pipes and copper joints, use a brazing material (Bcup-3)
which does not require flux.
• • •
• Flare processing and ester oil.
• • •
• Sealing can be improved by applying ester oil or mineral
oil (the minimum amount necessary) to flares and flange
connections.
• • •
• Due to the high hygroscopic tendency for ester oil, do
not mix or use any other impurities. (This can cause
deterioration of the compressor oil and problems with
the compressor.)
• • •
• After preparing the refrigerant pipes, close both ends of
the pipes by brazing if not immediately connecting them.
• • •
• A torque wrench must be used.
4.Install the drain pipe.
5.Install the ducts.
6.Insulate against heat.
7.Carry out the electrical work.
• • •
• Connecting cables and power cables.
8.Make all necessary settings.
9.Prepare the outdoor unit foundation.
10.Install the outdoor unit.
7

11.Air-tightness test.
For the final check, there should be no pressure drop when
3.3 MPa is applied for 24 hours.
12.Vacuum drying.
Vacuum draw time 60 min. or more
* Vacuum pump capacity 60 l/min. or higher
• • •
• Drawing the vacuum will remove any moisture.
• • •
• The pressure after vacuum drawing should be 755
mmHg or less.
• • •
• Use a special vacuum pump (with backflow-prevention
mechanism).
• • •
• Gas must never be used for air purging.
13.Additional refrigerant charging.
• • •
• Check that refrigerant volume is correct.
• • •
• Be sure to charge refrigerant in liquid state.
• • •
• Always charge in liquid state.
When the refrigerant is charged from the cylinder, the
composition may change greatly (compounds which do
not easily evaporate may remain inside the cylinder), so
the refrigerant must always be charged in a liquid state.
(It is recommended that a manifold with sight glass be
used.)
QBoiling point at normal atmospheric pressure
(reference)
Refrigerant HFC32 HFC125 HFC134a
Boiling point -52°C -49°C -26°C
• • •
• Use a special gauge manifold and charging hose.
• • •
• If refrigerant leaks occur, replace all of the refrigerant
(same as for R22).
• • •
• Note that a R22 leak detector cannot be use to detect
leaks.
• • •
• Refer to the Installation Instructions included for the
correct charging amount.
• • •
• Make a note of additional refrigerant charging amounts
in the record table.
14.Test operation and adjustment.
15.Organize documentation before handover.
16.Handover and explanation of operation.
• • •
• Ventilation of closed rooms
R407C is a non-flammable refrigerant with low toxicity,
but in the gas state its specific gravity is heavier than
that of air, and so if leaks occur in a closed room,
suffocation may occur. Toxic gases may also be
generated if it comes into direct contact with flames, so
adequate ventilation must be provided.
8

3 SPECIFICATION (HEAT PUMP TYPE)
CS-W50BD3P / CU-W50BBP8
ITEM / MODEL Indoor Unit Outdoor unit
Main Body CS-W50BD3P CU-W50BBP8
Cooling Capacity kW 14.00
(BTU/h) (47,700)
Heating Capacity kW 16.00
(BTU/h) (54,600)
Refrigerant Charge-less m 30
Standard Air Volume for High Speed m3/min Hi 40
cfm Hi 1413
External Static Pressure mmAq Hi 7 -
Pa Hi 69
Air Inlet Backward Suction Back sided Suction
Air Outlet Front blow-out Front blow-out
Outside Dimension (H x W x D) mm 270 x (1500 + 100) x 650 1220 x 1100 x 320
Net Weight kg (lbs) 56 (123) 115 (254)
Piping Connection Refrigerant Gas mm (inch) O.D Ø 19.05 (3/4) Flared Type
Liquid mm (inch) O.D Ø 9.52 (3/8) Flared Type
Drain mm Female screw RC1 (PT1) I.DØ 20 x 1
Compressor Type, Number of Set -Hermetic-1 (Scroll), 1
Starting Method - Direct on-line starting
Motor Type -2-pole 3 phase induction motor
Rated Output kW - 4.10
Fan Type, Number of Set Sirocco fan Prop. fan
Air Volume Control Three-Step and Auto mode -
(Remote Control)
Motor Type 4-pole single phase induction motor 6-pole single phase induction motor
Rated Output kW 0.2 0.055 x 2
Air-heat Exchanger X-Louvre-fin type X-Louvre-fin type
Refrigerant Control Capillary tube Capillary tube
Refrigerant Oil (Charged) L - MMMAPOE (2.0)
Refrigerant (Charged) kg (oz) - R407C 4.40 (155)
Running
Adjustment Control Switch Wired Remote Control -
Room Temperature Thermostat (Main Body) -
Safety Devices Internal protector for compressor, Internal thermostat for F.M, Crankcase
heater, High pressure switch, Current Transformer
Noise Level dB (A) Hi 44 Lo 40 Cooling 56, Heating 58
Power level dB Hi 59 Lo 55 Cooling 69, Heating 71
1.Cooling capacities are based on indoor temp. 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air temp.
35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
2.Heating capacities are based on indoor temp. 20°C D.B. (68.0°F D.B.) and outdoor air temp. 7°C D.B. (44.6°F D.B.), 6°C
W.B. (42.8°F D.B.)
ELECTRICAL DATA (50Hz)
MODEL / ITEM CS-W50BD3P/CU-W50BBP8
Condition by JIS B 8615
Volts V 380 400 415
Phase 3N 3N 3N
Input Power kW Cool 5.35 5.35 5.35
Heat 5.45 5.45 5.45
Running Current ACool 9.2 9.2 9.2
Heat 9.2 9.2 9.2
Starting Current A 69 69 69
Power Factor % Cool 88 84 81
Heat 90 86 82
*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Panasonic Power source AC, 3N~380V, 400V, 415V 50Hz
9

4 SPECIFICATION (COOLING ONLY TYPE)
CS-W50BD3P / CU-V50BBP8
ITEM / MODEL Indoor Unit Outdoor unit
Main Body CS-W50BD3P CU-V50BBP8
Cooling Capacity kW 14.00
(BTU/h) (47,700)
Refrigerant Charge-less m 30
Standard Air Volume for High Speed m3/min Hi 40 -
cfm Hi 1413
External Static Pressure mmAq Hi 7 -
Pa Hi 69
Air Inlet Backward Suction Back sided Suction
Air Outlet Front blow-out Front blow-out
Outside Dimension (H x W x D) mm 270 x (1500 + 100) x 650 1220 x 1100 x 320
Net Weight kg (lbs) 56 (123) 112 (247)
Piping Connection Refrigerant Gas mm (inch) O.D Ø 19.05 (3/4) Flared Type
Liquid mm (inch) O.D Ø 9.52 (3/8) Flared Type
Drain mm Female screw RC1 (PT1) I.DØ 20 x 1
Compressor Type, Number of Set -Hermetic-1 (Scroll), 1
Starting Method - Direct on-line starting
Motor Type -2-pole 3-phase induction motor
Rated Output kW - 4.10
Fan Type, Number of Set Sirocco fan Prop. fan
Air Volume Control Three-Step and Auto mode -
(Remote Control)
Motor Type 4-pole single phase induction motor 6-pole single phase induction motor
Rated Output kW 0.20 0.055 x 2
Air-heat Exchanger X-Louvre-fin type X-Louvre-fin type
Refrigerant Control Capillary tube Capillary tube
Refrigerant Oil (Charged) L - MMMAPOE (2.0)
Refrigerant (Charged) kg (oz) - R407C 4.40 (155)
Running
Adjustment Control Switch Wired Remote Control -
Room Temperature Thermostat (Main Body) -
Safety Devices Internal protector for compressor, Internal thermostat for F.M, Crankcase
heater, High pressure switch, Current Transformer
Noise Level dB (A) Hi 44 Lo 40 56
Power level dB Hi 59 Lo 55 69
1.Cooling capacities are based on indoor temp. 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air temp.
35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
ELECTRICAL DATA (50Hz)
MODEL / ITEM CS-W50BD3P/CU-V50BBP8
Condition by JIS B 8615
Volts V 380 400 415
Phase 3N 3N 3N
Input Power kW Cool 5.35 5.35 5.35
Running Current ACool 9.2 9.2 9.2
Starting Current A 69 69 69
Power Factor % Cool 88 84 81
*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Panasonic Power source AC, 3N~380V, 400V, 415V 50Hz
10

5 TECHNICAL DRAWING
CS-W50BD3P
OUTSIDE DIMENSIONS
11

CU-V50BBP8
12

6 CIRCUIT DIAGRAM
CS-W50BD3P
13

CU-W50BBP8
14

CU-V50BBP8
15

APPLICABLE FOR ALL MODELS
16

APPLICABLE FOR ALL MODELS
17

APPLICABLE FOR ALL MODELS
18

19

20