Mitsubishi MS-18RV Service Manual download pdf (Page 46)

10-3. AUTO RESTART FUNCTION

When the indoor unit is controlled with the remote controller, the operation mode, 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”

1Turn off the main power for the unit.

2Remove the electronic control P.C. board and the display P.C.board. (Refer to page 61 or 63.)

3Cut the RESISTOR JR06(MS-18/24RV)/ JR07(MS-30RV) on the indoor electronic control P.C.board. (Refer to page 58

or 59.)

JR06

CN102

CN151

CN112 CN111 CN121

CN101

52C

IC101 RA102

IC141

CN211

C11CN201

JR07

IC152

CN151

CN112

CN111

CN121

SW1

IC101

RA102

C11

CN201

CN211

TAB12

Operation

1If the main power (220-240V AC) has been cut, the operation settings remain.

2After 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.)

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 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 appliances 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.

MS-18/24RV MS-30RV

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Mitsubishi MS-18RV Service Manual Page 46

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