Auto Restart Function; How To Set “Auto Restart Function” - Mitsubishi Electric MSZ-G09SV Service Manual

10-4. 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. The "AUTO RESTART FUNCTION" sets to work the moment
power has restored after power failure. Then, the unit will restart automatically.
However if the unit is operated in "I FEEL CONTROL" mode before power failure,
the operation is not memorized. In "I FEEL CONTROL" mode, the operation is
decided by the initial room temperature.
How to set "AUTO RESTART FUNCTION"
1
Turn off the main power for the unit.
2
Pull out the indoor electronic control P.C. board and the display P.C.board. (Refer to page 97 or 99.)
3
Cut the RESISTOR JR07 on the indoor electronic control P.C.board. (Refer to page 90 or 91.)
MSZ-G09SV -
MSZ-G09SV -
CN201
Operation
1
If the main power (230V AC) has been cut, the operation settings remain.
2
After the power is restored, the unit restarts automatically according to the memory. (However, it takes at least 3 min-
utes for the compressor to start running.)
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 can-
celled.
•
If the unit has been off with the remote controller before power failure, the auto restart function does not works as the
power button of the remote controller is off.
•
To prevent breaker 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
starting 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.
MSZ-G12SV -
E1 E1
MSZ-G12SV -
E2 E2
C11
52C
CN151
JR07
MSZ-G20SV -
CN201
IC101
65
E1
C11
TAB12
IC152
JR07