Mitsubishi Electric MSH-C18TV, Руководство по обслуживанию

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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 CON-
TROL” 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 electronic control P.C. board and the
display P.C.board. (Refer to page 47.)
3
Cut the RESISTOR JR06 on the indoor electronic
control P.C.board. (Refer to page 44 .)
JR06
CN102
CN151
CN1
12
CN1
1
1
CN121
CN101
BZ
SW
52C
IC101 RA102
IC141
CN21
1
C1
1
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 minutes
for the compressor to start running.)
10-5. AUTO RESTART FUNCTION
NOTE : At power supply failure or installation, indoor unit deletes the memory about remote controller. When the power supply
is turned on and indoor unit receives the first signals from the remote controller, the remote controller number is desig-
nated as the indoor unit number. Therefore at and after the second time indoor unit accepts the remote controller of
the initial setting number.
At setting - error, turn the power supply off to cancel the individual operation and then turn the power supply on to
restart the setting.
Table 1
No. 1 unit
No. 2 unit
No. 3 unit
No. 4 unit
1 unit operation
No modification
–
–
–
2 units operation
Same as at left
Solder J1
–
–
3 units operation
Same as at left
Same as at left
Solder J2
–
4 units operation
Same as at left
Same as at left
Same as at left
Solder both J1 and J2
NOTE
•
The operation settings are memorized when 10 seconds have passed after the remote controller 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.
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