Mitsubishi Electric MSZ-FD25VA Service Manual page 10

8-3. 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
1
If the main power 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 minutes for the compressor to start running.)
How to release "AUTO RESTART FUNCTION"
1
Turn OFF the main power for the unit.
2
Solder the Jumper wire to JR07 on the indoor electronic control
P.C. board. (Refer to 10-7.)
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 work 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.
8-4. REMOTE CONTROLLER
Be sure to set the slide switch inside the remote controller to an appropriate position in accordance with the installed
position of the indoor unit. If the switch is not set correctly, the air conditioner may not function properly.
Where is the indoor unit installed in your room?
Installed at left, if the
distance is not more
than 50 cm.
(Left) (Center)
NOTE:If the indoor unit is installed more than 50 cm away from the side walls, cabinets or other nearby objects, set the slide
switch to the "center" position.
Slide swich
Area
Position of
the slide
switch
Display on
the remote
controller
Installed at right, if the
distance is not more
than 50 cm.
(Right)
Is the indoor unit in-
stalled at right, left or
center?
JR07
Left Center
10
Right