Table of Contents
Advertisement
9-2
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
or
Control box
IN/D OUT/D
220V
F
1
F
2
F
1
F
2
L N
No. 1 System
60Hz
Indoor
unit B
Indoor
L N
P
P
F
F
T
T
L N
1
2
1
2
1
2
unit A
P
P
1
2
2. For group control or use with 2 remote controllers
Power supply
220-240V
Outdoor unit
Control box
50Hz
IN/D OUT/D
F
1
F
2
F
1
F
2
or
L N
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
Indoor
downstream
unit C
Indoor unit
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
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
remote controllers
Fig. 6
3. When including BS unit
Power
Outdoor unit
supply
220-240V
Control box
IN/D OUT/D
F
L N
50Hz
or
220V
60Hz
Indoor unit A
L N
NOTE
• It is not necessary to designate indoor unit address when
using group control. The address is automatically set when
power is activated.
[ 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.
9-3
CONTROL BY 2 REMOTE CONTROLLERS (Con-
trolling 1 indoor unit by 2 remote controllers)
• When using 2 remote controllers, one must be set to "MAIN"
and the other to "SUB".
F
F
T
T
2
1
2
1
2
MAIN/SUB CHANGEOVER
(1) Insert a
screw driver into the recess between the
upper and lower part of remote controller and, working
P
P
1
2
from the 2 positions, pry off the upper part.
The remote controller PC board is attached to the upper
part of remote controller.
P
P
1
2
Insert the screwdriver here and gently work
off the upper part of remote controller.
F
F
F
1
2
1
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
2
P
P
1
2
Upper part of
remote controller
Lower part of
remote controller
BS unit
Control box
OUT/D
IN/D
F
F
F
F
1
2
1
2
Most
F
F
T
T
1
2
1
2
downstream
indoor unit
P
P
1
2
English
Hide quick links:
Advertisement
Table of Contents
