Specifications

Field Settings SiUS12-928_A
223 Trial Operation and Field Settings
3.4 When 2 Units are Installed in 1 Room
When 2 indoor units are installed in 1 room, 1 of the 2 pairs of indoor unit and 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 jumper JA on PCB.
Wireless remote
controller
 Cut the jumper J4.
3.4.1 Jumper Settings
For the location of the jumper, refer to the page 18 and 20.
< Duct-Free System> < Slim Duct Built-in System >
1)Remove the front grille.
2)Remove the electrical box.
3)Remove the metal plate of the electrical
box.
Address
JA
Address
JA
EXIST 1
CUT 2
(R10274)
1 23
ADDRESS : JA
CUT
EXIST 1
2
ADDRESS
JA
JB
JC
(R10276)
(R4417)(R10275)
ADDRESS
J4
EXIST
CUT
1
2
J4
Address
J4
EXIST 1
CUT 2
J4
< Duct-Free System> < Duct Built-in System >
Jumper Function When connected
(factory set)
When cut
JB
(on indoor unit PCB)
Fan speed setting
when compressor
stops for thermostat
OFF. (Effective only
at cooling operation)
Fan speed setting ;
Remote controller
setting
Fan speed setting; “0” (The fan
stops.)
JC
(on indoor unit PCB)
Power failure
recovery function
Auto-restart The unit does not resume
operation after recovering from a
power failure. Timer settings are
cleared.