Vermont Casting MSZ-D30NA User Manual

 

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. 

 

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.)

    Turn off the main power of the unit.
  

 

Solder the Jumper wire JR07 on the indoor electronic control P.C. board. (Refer to 9-7.)

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• 

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 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.

JR07

CN151

CN152

CN101

CN21

1

CN1

12

BZ