EG
7-7.
Address Switches
• Heat pump models
If you are installing more than 1 indoor unit (up to 3) in the same room, it is necessary for you to assign each unit its own address
so they each can be operated by their remote controller.
Up to 3 indoor units can be controlled separately through the address switches. The operating control has the reception address
switch and the remote controller has transmission address switch. This function is utilized by matching the transmission and
reception address switches.
EX) 3 indoor units in 1 room
* Reception may be impossible if the remote controller is too far away. In this case, either use individual control or group control.
Operating indoor units A, B, and C with their own remote controllers
Operating indoors units A, B, C
with 1 remote controller
Main
Indoor unit address switch
Remote controller address switch position (transmission)
unit type
position (reception)
A unit
B unit
C unit
Align both the indoor unit and
remote controller address switch
positions at the same number.
ADDRESS
ADDRESS
ADDRESS
ADDRESS
ADDRESS
ADDRESS
• Cooling only models
The address switch setting function is not available on the remote controller. Be sure to set the ADDRESS switch on the operation
controller to 1 (Fig. 7-10).
NOTE
• In case of 4-way air discharge type, test run operations is
not possible without the ceiling panel installation.
• During the test run, all of the 3 indicator lamps on the indoor
unit will flash.
• During the test run, the air conditioner runs continuously
and the thermostat does not control the system.
• To protect the air conditioner from overloading, the outdoor
unit will not start running for 3 minutes after power is applied
or the air conditioner is turned off and then back on.
• When the air conditioner fails to start the test run, 1 or more
of the 3 alarm indicator lamps on the indoor unit will flash
(See next section - Heat pump models only).
ADDRESS SENSOR
Setting the model code
1
2
K
S
Corresponding model
■
■
4-way discharge, Ceiling suspended
7-8. Setting the Model Code
(only for heat pump models)
Check that the model code switch within the remote controller
battery compartment matches following.
7-9. Test Run Switch
Test run switch is located at operating control unit. See Fig. 7-9.
Regarding the test run, please refer to section 12. Test Run.
Model code
switch
Fig. 7-9
Fig. 7-10
SERVICING
switches
All OFF for initial settings
1. TEST RUN (ON)
2. PCB CHK. (N)
3. RCU MAIN (OFF)
/ SUB (ON)
4. OFF
ADDRESS
NORM. HOLD
SWEEP
ON • l
OFF • O
ON
OFF
ADDRESS
switch
NORM./
HOLD
switch
SWEEP
button
ON/OFF
operation
button
28
