Mitsubishi Heavy Industries FDEN125VNXVD Service Manual Download

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'10 • PAC-SM-137

1.2 Operation control function by the wired remote controller

(1)

Switching sequence of the operation mode switches of remote controller

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(2) [CPU

reset]

This functions when “CHECK” and “GRILL” buttons on the remote controller are pressed simultaneously. Operation is same
as that of the power supply reset.

(3)

[Power failure compensation function]...Electric power supply failure

• This becomes effective if “Power failure compensation effective” is selected with the setting of remote controller function.
• Since it memorizes always the condition of remote controller, it starts operation according to the contents of memory no

sooner than normal state is recovered after the power failure. Although the auto swing stop position and the timer mode are
cancelled, the weekly timer setting is restored with the holiday setting for all weekdays.

After recovering from the power failure, it readjusts the clock and resets the holiday setting for each weekday so that the

setting of weekly timer becomes effective.

• Content memorized with the power failure compensation are as follows.

Note (1) Items

and

are memorized regardless whether the power failure compensation is effective or not while the setting of silent mode is cancelled

regardless whether the power failure compensation is effective or not.

At power failure – Operating/stopped

If it had been operating under the off timer mode, sleep timer mode, the state of stop is memorized. (Although the
timer mode is cancelled at the recovery from power failure, the setting of weekly timer is changed to the holiday
setting for all weekdays.)

Operation

mode

Airﬂow volume mode

Room temperature setting

Louver auto swing/stop

However, the stop position (4-position) is cancelled so that it returns to Position (1).

“Remote controller function items” which have been set with the remote controller function setting (“Indoor
function items” are saved in the memory of indoor unit.)

Upper limit value and lower limit value which have been set with the temperature setting control

Sleep timer and weekly timer settings (Other timer settings are not memorized.)

[Parts layout on remote controller PCB]

SW2

SW1

親

子

SW1

SW2

ter/

lave

etting when more than one remote controller

are u

A maximum of two remote controllers can be connected to one indoor unit (or one group of indoor units.)

Caution

When using multiple remote controllers, the following dispiays or settings
cannot be done with the slave remote controller. It is available only with
the master remote controller.

Louver position setting (set upper or lower limit of swinging range)

Setting indoor unit functions

Setting temperature range

Operation data display

Error data display

Silent mode setting

Test operation of drain pump

Remote controller sensor setting

Remote controller cord (no polarity)

Remote controller

SW1 "Master"

Switch

Setting

Contents

Master remote controller

SW1

Slave remote controller

Remote controller

SW1 "Slave"

Lower

Master

Slave

Upper

Board

Indoor units

Set SW1 to "Slave" for the slave remote controller. It was factory set to "Master" for shipment.

Note: The setting "Remote controller thermistor enabled" is only selectable with the master remote

controller in the position where you want to check room temperature.
The air conditioner operation follows the last operation of the remote controller regardless of the
master/ slave setting of it.