Daikin Split Series, Installation Manual

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FDBQ25B8V1
Split series room air conditioners
Multi system room air conditioners
4PW23698-1
Installation manual
4
FIELD SUPPLY
K1R........................ Magnetic relay
EH.......................... Electrical heater
Field cable and field fuse
■
Do not connect wires of different gauge to the same power
supply terminal. (Looseness in the connection may cause
overheating.)
■
When connecting wires of the same gauge, connect them
according to the figure.
I
NSTALLING THE REMOTE CONTROLLER
Installation instructions and field settings
Refer to the installation manual delivered with the optional remote
controller.
Setting the air filter replacement
Setting
■
The remote controller displays when it is time to clean the
air filters.
■
Change the second code n° according to the table depending on
the amount of dirt or dust in the room (the 2nd code n° is factory
set to '01' for light air filter contamination).
Setting the remote sensor
The customer has the ability to select the thermistor. Both unit and
remote controller are equipped with a thermistor.
Setting
■
Change the second code n° according to the table to enable or
disable the remote sensor
Wired remote
controller :
Details of wired
remote controller :
Adaptor for wiring :
Terminals for
operation indicator :
Fan operation :
Compressor operation :
Switch box :
NOTE 1. When using the central remote controller, see manual
for connection to the unit.
2. The remote controller model varies according to the
combination system. See technical materials and
catalogs, etc. before connecting.
NOTE
In case of installing an electric heater, execute the
additional wiring and use a separate power supply of
1~50 Hz 230 V.
■
Use solid core cables to avoid loosening of the wires.
■
Refer to the installation manual of the outdoor unit for the
required field cable section and field fuse.
■
Remove maximum 8 mm of the wire insulation when
connecting the wires to the terminals.
■
Open the switch box cover. Pull the wires through rubber bush
5
(See figure 1) and connect them to the matching power
supply terminal.
NOTE Observe the notes mentioned below when wiring to
the power supply terminal board.
■
Do not install the remote controller near a heater or in
a position exposed to direct sunlight.
■
Do not directly touch the PC board with your hand
during installation.
By installing an air suction and discharge filter, lifetime of
the unit can be prolonged.
Setting Display interval Mode n° 1st code n° 2nd code n°
light air filter
contamination
±2500 hrs. 20 0 01
heavy air filter
contamination
±1250 hrs. 20 0 02
Setting Mode n° 1st code n° 2nd code n°
enabled 20 2 01
disabled 20 2 02
CAUTION for multi heat pump system
Enable the remote sensor when combined to a multi split
heat pump system.
When the thermostat is switched off in heating mode, the
expansion valve of the outdoor unit will not close
completely. Some refrigerant will pass through, causing a
temperature rise of the heat exchanger. The thermistor of
the unit is sensing a higher temperature than the actual
room temperature. This can cause a problem for the unit
during start up in heating mode. By enabling the thermistor
in the remote controller, the actual room temperature is
sensed instead of the heat exchanger temperature.