Service manual

SiBE041029_A Field Settings
Trial Operation and Field Settings 111
4.3 Jumper and Switch Settings
Indoor Unit
For the location of the jumper, refer to page 10.
Outdoor Unit
For the location of the switch / jumper, refer to page 13, 15.
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.
Function Jumper When connected
(factory setting)
When cut
Fan speed setting when
compressor stops for
thermostat OFF. (effective only
in cooling operation)
JB Fan speed setting ;
Remote controller
setting
Fan speed setting; “0” (The fan
stops.)
Power failure recovery function JC Auto-restart The unit does not resume
operation after recovering from a
power failure. Timer settings are
cleared.
Function Switch / Jumper Switch: OFF
Jumper: connected
(factory set)
Switch: ON
Jumper: cut
Improvement
of defrost
performance
RX50/60G2V1B, 71 class → SW4-C
RX50/60G3V1B → J8
Standard control Reinforced control (ex.
The frequency increases,
the duration time of
defrost lengthens.)