Panasonic Cs W18bd3p Cs W24bd3p Cs W28bd3p Series Repair Manual

 1 SERVICE INFORMATION 3
 2 FEATURES 
4
 3 SPECIFICATION (HEAT PUMP TYPE) 
10
 4 SPECIFICATION (COOLING ONLY TYPE) 
16
 5 TECHNICAL DRAWING 
23
 6 CIRCUITDIAGRAM 
31
 7 OPERATING INSTRUCTION 
46
 8 REFRIGERATION CYCLE 
48
 9 OPERATIO N RANGE 
51
 10  PIPE LENGTH 
52
 11  OPERATING CHARACTERISTIC 
54
 12  FAN PERFORMANCE 
55
 13  SAFETYDEVICE 
59
 14  COMPONENT SPECIFICATION 
60
© 2002 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D). All rights reserved. Unauthorized copying
and distribution is a...

 28  REPLACEMENT PARTS 128
2 

1 SERVICE INFORMATION
Notice of Address setting for NEW Cassette / NEW Outdoor Unit.
The new Ceiling / New Outdoor models are possible to have address setting fortwin / triplecontrol or group control by
automatic when main powersupply is switched on.
(Manual address setting is also possible by using Dip switch on Indoor unit P.C. board.) However,this address setting isonly
possible when made proper wiring connection and also Indoor unit should be original virgin unit
.
1.1. Example of trouble at test...

2.1. Variety of excellent features
2.1.1. Compact design, height 27 cm
 
    • 
• •  • 
The height has been reduced to 27 cm (for 2.5HP to
5.0HP), the equipment can be installe d in limited spaces.
2.1.2. Versatile installation
 
    • 
• •  • 
The indoor unit is designed in order that air will also enter
from below, for easier installa tion under different conditions.
 
    • 
• •  • 
The equipment has two drain outlets on the right and left
side for adoption to the installa tion conditions in the...

[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...

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 outdoo r units need
to be replaced.
 
    • 
• •  • 
For example, liquid and gas pipes from 10years 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 supplie d.)
2.3.2. Additional refrigerant...

2.3.8. 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 improve
appearance.
2.4. A brand-new control method
using the latest in technology
2.4.1. Powersupplywiring 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 outdoo r
units.
 
    • 
• •...

 

Twin 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 installa tion and charging work are
different from before. Care should be taken whencarrying
out this work.
2.5.2. Installation and precautions
2.5.2.1. Before installation
 1. Determine the installa tion division.
 2. Check the refrigerant to be used....

 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 time60 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. Additio nal...

3 SPECIFICATION (HEAT PUMP TYPE)
3.1. CS-W18BD3P / CU-W18BBP5
ITEM / MODELIndoor UnitOutdoor unit
Main BodyCS-W18BD3PCU-W18BBP5
Cooling CapacitykW5.00
(BTU/h)(17,100)
Heating CapacitykW5.60
(BTU/h)(19,000)
Refrigerant Charge-lessm30
Standard Air Volume for High Speedm3/minHi 17
cfmHi 600
External Static PressuremmAqHi 5-
PaHi 49
Air InletBackward SuctionBack sided Suction
Air OutletFront blow-outFront blow-out
Outside Dimension (H x W x D)mm290 x (780 + 100) x 650900 x 900 x 320
Net Weightkg (lbs)34...