Daikin FXKQ25MVE Installation Manual page 11

9-3 WIRING EXAMPLE
• Fit the power supply wiring of each unit with a switch and fuse
as shown in the drawing.
COMPLETE SYSTEM EXAMPLE (3 systems)
Power supply
Main
switch
BS unit
(Only for
Heat
recovery system)
Indoor unit
Remote controller
1. When using 1 remote controller for 1 indoor unit. (Nor-
mal operation)
Power supply
220-240V
Outdoor unit
50Hz
Control box
IN/D OUT/D
or
F F F F
1 2 1 2
220V
No. 1
L N
System
60Hz
Indoor
Indoor
unit B
unit A
L N P P F F T T L N
1 2 1 2 1 2
P P
1 2
2. For group control or use with 2 remote controllers
Note: It is not necessary to designate
Power supply
220-240V
Outdoor unit
Control box
50Hz
IN/D OUT/D
F 1 F 2 F 1 F 2
L N
or
No. 2
220V
System
60Hz
Indoor unit B
Indoor unit A
L N P P F F T T L N P
1 2 1 2 1 2
P P
1 2
10
Power supply wiring
Transmission wiring
Switch
Fuse
Most
downstream
Indoor
Indoor unit
unit C
P P F F T T L N P P F F T T L N P P
1 2 1 2 1 2 1 2 1 2 1 2 1
P P P P
1 2 1 2
indoor unit address when using
group control.
The address is automatically set
when power is activated.
Most
downstream
Indoor unit C
indoor unit
P F F T T L N P P F F T T L N P P F F T T
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
P P
1 2
For use with 2
Fig. 5
remote controllers
3. When including BS unit
Power
Outdoor unit
supply
220-240V
Control box
F
L N
50Hz
or
220V
60Hz
Indoor unit A
L N
[ PRECAUTIONS ]
1. A single switch can be used to supply power to units on the
same system. However, branch switches and branch circuit
breakers must be selected carefully.
2. Do not ground the equipment on gas pipes, water pipes or
lightning rods, or crossground with telephones. Improper
grounding could result in electric shock.
9-4 CONTROL BY 2 REMOTE CONTROLLERS
(Controlling 1 indoor unit by 2 remote control-
lers)
• When using 2 remote controllers, one must be set to "MAIN"
and the other to "SUB".
MAIN/SUB CHANGEOVER
(1) Insert a
and lower part of remote controller and, working from the 2
positions, pry off the upper part.
The remote controller PC board is attached to the upper
part of remote controller.
F F T T
2 1 2 1 2
P P
1 2
Insert the screwdriver here and gently work
off the upper part of remote controller.
(2) Turn the MAIN/SUB changeover switch on one of the two
remote controller PC boards to "S".
(Leave the switch of the other remote controller set to "M".)
P P
1 2
(Factory setting)
Only one remote controller
needs to be changed if
factory settings have
remained untouched.
IN/D OUT/D
1 F 2 F 1 F 2
BS unit
No. 3
Control box
System
OUT/D IN/D
F F F F
1 2 1 2
P P F F T T L N P P
1 2 1 2 1 2 1
P P
1 2
screw driver into the recess between the upper
Upper part of
remote controller
Lower part of
remote controller
S S
M
Remote controller
PC board
S
M
BS unit
Control box
OUT/D IN/D
F F F F
1 2 1 2
Most
F F T T
2 1 2 1 2
downstream
indoor unit
P P
1 2
English