Auto Restart Function - Mitsubishi Electric MSZ-GS06NA - U1 Service Manual

7-3. AUTO RESTART FUNCTION

When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed
are memorized by the indoor electronic control P.C. board. "AUTO RESTART FUNCTION" automatically starts operation in
the same mode just before the shutoff of the main power.
Operation
If the main power has been cut, the operation settings remain.
After the power is restored, the unit restarts automatically according to the memory.
(However, it takes at least 3 minutes for the compressor to start running.)
How to disable "AUTO RESTART FUNCTION"
Turn OFF the main power of the unit.
Cut the Jumper wire JR77 on the indoor electronic control P.C. board. (GS06/09/12/15/18/24/30/36NA) (Refer to 9-7.)
MSZ-GS06/09/12/15NA
MSY-GS09/12/15NA
Indoor electronic
control P.C. board
JR77
MSZ-GS24NA
MSY-GS24NA
NOTE:
•
The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote
controller.
•
If main power is turned OFF or a power failure occurs while AUTO START/STOP timer is active, the timer setting is
cancelled.
•
If the unit has been turned OFF with the remote controller before power failure, the auto restart function does not work as
the power button of the remote controller is OFF.
•
To prevent the breaker from tripping OFF due to the rush of starting current, systematize other home appliance not to turn
ON at the same time.
•
When some air conditioners are connected to the same supply system, if they are operated before power failure, the start-
ing current of all the compressors may flow simultaneously at restart.
Therefore, the special counter-measures are required to prevent the main voltage-drop or the rush of the starting current
by adding to the system that allows the units to start one by one.
OBH874A
CN151
JR77
Indoor electronic
CN10A
control P.C. board
MSZ-GS18NA
MSY-GS18NA
Indoor electronic
control P.C. board
CN111
MSZ-GS30/36NA MSZ-GS30/36NA2
MSY-GS30/36NA MSY-GS30/36NA2
JR77
CN10A
19
JR77
Indoor electronic
control P.C. board