SiBE121021_C Field Settings
Trial Operation and Field Settings 459
5.3 Outdoor Unit
5.3.1 Priority Room Setting
Electronic expansion valves are controlled to provide more capacity to the prioritized room.
Setting method
Turn off the circuit breaker before changing the setting.
Only one room can be set as the priority room (By turning on one of the SW4 on the service
monitor PCB of the outdoor unit).
The control starts when all the following conditions are met.
∗
Priority room setting is made.
∗
“POWERFUL” signal from the priority room unit is received.
Note: The operation mode of the priority room unit has precedence.
Cancellation of control
The control function is canceled when the “POWERFUL” operation mode is switched off or
20 minutes elapse after “POWERFUL Operation” started.
(R1396)
Living
room
Living
room
A
room
A
room
B
room
B
room
C
room
C
room
Normal
operation
When inverter
powerful-operation
is selected in the
priority room
The prioritized room will be heated/cooled much more quickly
Service monitor PCB
3 or 4 room model
(R12882)
Priority room
setting switch (SW4)
Service monitor PCB
5 room model
(R12883)
Priority room
setting switch (SW4)
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