Service Manual

SiUS041638E Field Settings
Trial Operation and Field Settings 108
4.3 When 2 Units are Installed in 1 Room
Outline When 2 indoor units are installed in 1 room, 1 of the 2 indoor units and the corresponding wireless
remote controller can be set for different addresses.
Both the indoor unit PCB and the wireless remote controller need alteration.
Indoor Unit PCB

Cut the address setting jumper JA on the control PCB.
Caution Replace the PCB if you accidentally cut a wrong jumper.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.
Wireless Remote
Controller
ARC466 series

Cut the address setting jumper (J4).
Caution Replace the remote controller if you cut a wrong jumper.
The heating operation will not be available when the jumper on the left side is cut.
4.3.1 Jumper Settings
For the location of the jumpers, refer to page 7.
ADDRESS
JA
JA
EXIST
CUT
ADDRESS
1
2
(R22632)
(R24634)
ADDRESS
EXIST
1
CUT
2
Jumper (J4)
Jumper (on indoor
unit PCB)
Function When connected
(factory setting)
When cut
JB Fan speed setting
when compressor
stops for thermostat
OFF. (effective only
at cooling operation)
Fan speed setting;
Remote controller
setting
The fan stops.
JC Power failure
recovery function
Auto-restart The unit does not resume
operation after recovering from a
power failure. Timer settings are
cleared.