Field Settings SiUS12-928_B
261 Trial Operation and Field Settings
5. Field Settings
5.1 Outdoor Unit
5.1.1 Priority Room Setting
Outdoor 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.