Field Settings SiBE121135_A
261 Trial Operation and Field Settings
5.3.3 MAIN / SUB Setting when Using 2 Wired Remote Controllers
Outline The MAIN / SUB setting is necessary when 1 indoor unit is controlled by 2 remote controllers.
When you use 2 remote controllers (control panel and separate remote controller), set one to
MAIN and the other to SUB.
Detail The remote controllers are factory set to MAIN, so you only have to change one remote
controller from MAIN to SUB.
BRC1D528
BRC1E52A7, BRC1E52B7
Step Action
1 Insert a flat screwdriver into the groove between the upper and lower part of the
remote controller, as shown in the illustration below. Gently pry off the upper part
of the controller, working from the two possible positions.
2 Set the [MAIN / SUB changeover] switch on the PCB to “S”.
Step
Action Remote controller
1
Put on the power for both remote controllers.
2
Determine which one is the sub/main remote
controller.
3
When Error code: U5 - Connection under
check Please wait for a moment is
displayed on both remote controllers, push
and hold the [Operation mode selector]
button of the sub remote controller for 4
seconds.
4
The sub remote controller now displays Sub
remote contrl.
Note) The main remote controller still
displays Main remote contrl.
5
After a few seconds, the basic screen is
displayed.
(R11738)
Upper part of the
remote controller
Lower part of the
remote controller
Set the switch to SUB.
(R11739)
The switch is set to
MAIN (factory setting)
(R12880)
(R12881)
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