8
English
Wiring example
Fit the power supply wiring of each unit with a switch and fuse as
shown in figure 15.
1
Power supply
2
Main switch
3
Power supply wiring
4
Transmission wiring
5
Switch
6
Fuse/Breaker
7
Branch selector unit (Heat recovery system only)
8
Indoor unit
9
Remote controller
Complete system example (3 systems)
See figures 12, 13 and 14.
1
Outdoor unit
2
Indoor unit
3
Remote controller (Optional accessory)
4
Most downstream indoor unit
5
For use with 2 remote controllers
6
Branch selector unit (Heat recovery system only)
When using 1 remote controller for 1 indoor unit. (Normal
operation)
(See figure 12)
.
For group control or use with 2 remote controllers
(See figure 13)
.
When including Branch selector unit
(See figure 14)
.
NOTE
It is not necessary to designate indoor unit address
when using group control. The address is automatically
set when the 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
For a group control remote controller, choose the remote controller
that suits the indoor unit which has the most functions.
3
Do not connect the ground wire to gas or water pipes, lightning rods
or telephone ground wires.
Installation of the decoration panel
Refer to the installation manual supplied with the decoration panel.
After installing the decoration panel, ensure that there is no space
between the unit body and decoration panel. Otherwise air may leak
through the gap and cause condensation.
Field setting
Field setting must be made from the remote controller in accordance
with the installation condition.
Setting can be made by changing the “Mode No.”, “First code No.”
and “Second code No.”.
For setting and operation, refer to the “Field setting” in the
installation manual of the remote controller.
Summary of field settings
Mode
No.
(Note 1)
First
code
No.
Description of setting
Second code No. (Note 2)
01
02
03
04
10
(20)
0
Filter
contamination -
Heavy/Light
= Setting to
filter sign
interval
Long
Life
Filter
Light
±2,500 hrs.
Heavy
±1,250 hrs.
—
—
2
Thermostat sensor
selection
Use both
unit sensor
(or remote
sensor if
installed)
AND
remote
controller
sensor.
(See Note 4
and 5)
Use unit
sensor only
(or remote
sensor if
installed).
(See Note 4
and 5)
Use
remote
controller
sensor
only.
(See
Note 4
and 5)
—
3
Filter sign displayed
or not displayed
Display
Do not
display
—
—
5
Information to
I-manager,
I-touch controller
Only unit
sensor
value (or
remote
sensor
value if
installed).
Sensor
value as set
by 10-2-0X
or 10-6-0X.
—
—
6
Thermostat sensor in
group control
Use unit
sensor only
(or remote
sensor if
installed).
(See Note
5)
Use both
unit sensor
(or remote
sensor if
installed)
AND
remote
controller
sensor.
(See Note
3, 4 and 5)
—
—
11
(21)
12
Dry mode
set temperature
Room
temperature
Same as
cooling
mode set
temperature
—
—
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