Panasonic Cs W18bd3n Cs W24bd3n Cs W28bd3n Series Repair Manual

							ModelCooling capacities are based conditions.
CS-W43BD3N!Indoor temp. 27°C D.B. 19°C W.B.
!Outdoor temp. 35°C D.B.
!Standard air volume 40 m
3/min
!External Static Pressure (69Pa)Cooling capacity
12.5kW
EnteringTemperatu re Air Entering Condenser (°C D.B.)
Air25°C30°C35°C40°C45°C
Temperatu reTCSHCIPTTCSHCIPTTCSHCIPTTCSHCIPTTCSHCIPT
D.B.W.B.kWkWkWkWkWkWkWkWkWkWkWkWkWkWkW
1713.08.724.2212.58.634.4611.88.354.8010.97.945.1710.17.585.38
231913.77.284.4713.37.324.7312.67.205.0911.86.955.4811.06.745.64
2215.06.154.8314.66.285.1113.96.275.4913.06.135.9212.36.016.04
1712.910.24.2012.410.04.4611.69.74.7910.89.185.1510.18.815.35
251913.88.944.4713.38.904.7412.68.675.1011.78.315.4811.08.055.66
2215.07.354.8314.57.425.1213.87.335.5112.46.825.9212.26.975.99
1712.712.14.1812.211.94.4611.511.54.7910.710.75.1210.110.15.32
271913.810.54.4713.310.34.7612.510.05.1211.69.535.4711.09.245.68
2215.08.544.8314.58.545.1413.78.375.5311.87.425.9112.27.946.02
1712.712.04.1612.211.94.4111.611.64.7210.810.85.0410.310.35.22
291913.712.64.4413.312.54.7212.512.05.0411.711.55.3811.111.15.57
2214.910.04.9014.49.905.2013.79.705.5512.49.035.9312.29.146.09
1712.712.04.1412.211.94.3911.611.64.6710.910.94.9810.310.35.15
321913.713.04.4313.312.94.6912.612.64.9911.811.85.3211.211.25.50
2214.912.44.9414.412.25.2313.611.95.5712.811.45.9412.211.16.14
HEATING PERFORMANCE
ModelHeating capacities are based conditions
CS-W18BD3N!Indoor temp. 20°C D.B.
!Outdoor temp. 7°C D.B. 6°C W.B.
!Standard air volume 17 m
3/min
!External Static Pressure (69Pa)Heating capacity
5.6kW
Inlet AirOutdoor Temperatu re (°C W.B.)
External Static Pressure (Pa)
Air Volume (m3/min)Entering Air
Dry Bulb (°C)-6°C0°C6°C12°C
H.C.IPTH.C.IPTH.C.IPTH.C.IPT
69Pa 17m3/min153.981.304.821.485.881.727.002.01
203.701.574.541.575.601.816.662.12
253.421.454.261.675.321.906.382.15
ModelHeating capacities are based conditions
CS-W24BD3N!Indoor temp. 20°C D.B.
!Outdoor temp. 7°C D.B. 6°C W.B.
!Standard air volume 20 m
3/min
!External Static Pressure (69Pa)Heating capacity
7.1kW
Inlet AirOutdoor Temperatu re (°C W.B.)
External Static Pressure (Pa)
Air Volume (m3/min)Entering Air
Dry Bulb (°C)-6°C0°C6°C12°C
H.C.IPTH.C.IPTH.C.IPTH.C.IPT
69Pa 20m3/min155.041.866.112.127.462.458.882.86
204.692.245.752.247.102.588.453.02
254.332.065.402.376.752.718.093.08
51 
						

							ModelHeating capacities are based conditions
CS-W28BD3N!Indoor temp. 20°C D.B.
!Outdoor temp. 7°C D.B. 6°C W.B.
!Standard air volume 25 m
3/min
!External Static Pressure (69Pa)Heating capacity
8.0kW
Inlet AirOutdoor Temperatu re (°C W.B.)
External Static Pressure (Pa)
Air Volume (m3/min)Entering Air
Dry Bulb (°C)-6°C0°C6°C12°C
H.C.IPTH.C.IPTH.C.IPTH.C.IPT
69Pa 25m3/min155.682.046.882.338.402.7010.003.15
205.282.476.482.478.002.849.523.32
254.882.276.082.617.602.989.123.62
ModelHeating capacities are based conditions
CS-W34BD3N!Indoor temp. 20°C D.B.
!Outdoor temp. 7°C D.B. 6°C W.B.
!Standard air volume 35 m
3/min
!External Static Pressure (69Pa)Heating capacity
11.2kW
Inlet AirOutdoor Temperatu re (°C W.B.)
External Static Pressure (Pa)
Air Volume (m3/min)Entering Air
Dry Bulb (°C)-6°C0°C6°C12°C
H.C.IPTH.C.IPTH.C.IPTH.C.IPT
69Pa 35m3/min157.952.999.633.4011.83.9414.04.61
207.393.619.073.6111.24.1513.34.86
256.833.328.513.8210.64.3612.84.76
ModelHeating capacities are based conditions
CS-W43BD3N!Indoor temp. 20°C D.B.
!Outdoor temp. 7°C D.B. 6°C W.B.
!Standard air volume 40 m
3/min
!External Static Pressure (69Pa)Heating capacity
14.0kW
Inlet AirOutdoor Temperatu re (°C W.B.)
External Static Pressure (Pa)
Air Volume (m3/min)Entering Air
Dry Bulb (°C)-6°C0°C6°C12°C
H.C.IPTH.C.IPTH.C.IPTH.C.IPT
69Pa 40m3/min159.93.6912.04.2014.74.8617.55.68
209.244.4511.34.4514.05.1216.75.99
258.544.1010.64.7113.35.3816.06.10
52 
						

							15 DISCHARGE AND SUCTION PRESSURE
15.1. SATURATION TEMPERATURE OF DISCHARGE AND SUCTION
PRESSURE
!
!! !
Commonness TO ALL THE MODELS
!
!! !
SATURATIONTEMPERATURE OF DISCHARGE AND SUCTION PRESS URE
*For intake temperature, consult the pressure - Enthalpy Table (R407C) at the end.
53 
						

							16 SOUNDDATA
54 
						

							55 
						

							56 
						

							57 
						

							58 
						

							17.1.1. Operation
 
    • 
• •  • 
Simultaneous air conditioning of wide spaces and corners is
possible. Indoor units with different horsepower can even
be used in combination.
 
    • 
• •  • 
Master units and slave-units can be set automatically in twin
systems. No address setting is necessary.
 
    • 
• •  • 
Multiple indoor units can be operated simultaneousl y with a
single remote control unit. Note that individual operation is
not possible.
17 TWIN OPERATION
17.1. TWIN
(Twinoperation setting)
 
    • 
• •  • 
The master units and slave units are set automatically when the power is turned on. At this time, the indoor unit which is
connected to the remote control unit becomes the master unit.
(If automatic setting is not possible, carry out the settings manua lly.)
 
    • 
• •  • 
No distinction is made between master units and slave units (slave unit 1) at the indoor or remote control.
 
    • 
• •  • 
Install the remote control unit to the master unit. (It cannot be connected to slave units.)
If indoor unit models with louvres and models without louvres have been connected together, use an indoor unit with louvres
as the master unit.
 
    • 
• •  • 
The remote control thermostat can also be set.
 
    • 
• •  • 
Optional circuit boards can only be installe d to the master unit.
 
    • 
• •  • 
Setting the master unit and slave units can also be carried out manua lly by using DIP switches. However, manua l settings will
alwaystake priority. If you have made manua l settings but would like to return to using automatic settings, set all slave unit DIP
switches (refer to the table below) to the OFF position, and then press the ADDRESS RESET switch on the outdoo r unit (SW3
on the outdoor unit printed circuit board).
(Do not mix manua l settings and automatic settings.)
59 
						

							Automatic address setting fortwinsystem
Procedure:Turn on the power supply for the indoor and outdoor units.
Operation:Automatic address setting will start 10 to 30 seconds after the power supply is turned on, and will be completed after about 1
minute.
If the power supplies for the indoor unit and outdoor unit cannot be turned on at the same time, turn on the power supply for the
outdoor unit, the indoor unit which is connected to the remote control, and then the other indoor units in that order.
If the order of turning on the power supply is incorrect, the master unit setting may overlap. In such a case, turn on the power supplies
for all units in the correct order as given above, or carry out a twin/triple automatic address reset (press dip switch 3 on the outdoor
unit continuously for 4 seconds or longer).
 
    • 
• •  • 
The indoor unit which is connected to the remote control unit (receptor) will have priority for becoming the master unit.
 
    • 
• •  • 
The master unit thermostat will be used as the indoor temperature thermostat. If the master unit thermostat is turned on, the
slave unit thermostats cannot be adjusted even if they happen to be on.
 
    • 
• •  • 
DIP switch settings take priority in the setting of twin and triple addresses.
 
    • 
• •  • 
If address setting using the DIP switches is carried out after automatic address setting has been carried out, use DIP switch
No.3 on the outdoor unit to carry out automatic address resetting.
 
    • 
• •  • 
If you would like to designate a particular indoor unit as the master unit because no master unit has been set, use the DIP
switches on the slave units to make the setting.
If automatic address setting is carried out once and then the slave unit addresses are set, the addresses will then be stored inside the
EEPROM. Thus it is not necessary to repeat automatic address setting if the power is turned off and back on again.
DIP switch settings fortwinslave unit addresses
Procedure:Turn off the power supply, and then set DIP switch 1-8 to ON.
The unit will become slave unit 1.
Turn on the power supply.
Operation:The unit will operate as slave unit 1. Automatic address setting is not carried out at this time.
If the setting can be made while the power is still turned on, it is easier to mis-combine the setting with group settings. So, the
setting be made better while the power is turned off.
 
    • 
• •  • 
Only slave unit addresses can be set in this way. Master unit setting is not possible.
 
    • 
• •  • 
If you make the DIP switch settings after the power has been turned back on, carry out twin/triple automatic address resetting.
 
    • 
• •  • 
Be sure to set DIP switch 1-8 to ON when setting twin/triple addresses. If DIP switch 1-1 is set to ON without setting 1-8 to ON
also, group addresses will be set instead, and the remote control open circuit error code (F26) will bedisplay ed.
60