9-11. EMERGENCY/TEST OPERATION

In case of test run operation or emergency operation, use EMERGENCY OPERATION switch on the right side of the indoor unit. Emergency operation is available when the remote controller is missing, has failed or the batteries of the remote controller run down. The unit will start and AREA lamp will light.

The first 30 minutes of operation is the test run operation. This operation is for servicing. The indoor fan runs at High speed and thermostat is ON, but temperature control does not work.

After 30 minutes of test run operation, the system shifts to EMERGENCY COOL / HEAT MODE with a set temperature of 24 °C. The fan speed shifts to Med.

All protective operations such as the coil frost prevention works even in emergency operation.

In the test run or emergency operation, the horizontal vane operates in VANE AUTO ( ) mode.

Emergency operation continues until EMERGENCY OPERATION switch is pressed once or twice or the unit receives any signal from the remote controller. In case of latter, normal operation will start.

NOTE : Do not press EMERGENCY OPERATION switch during normal operation.

EMERGENCY OPERATION switch (E.O.SW)

9-12. 3-MINUTE TIME DELAY OPERATION

Operation mode

COOL

HEAT

Set temperature

24 :

24 :

Fan speed

Med.

Med.

Horizontal vane

Auto

Auto

Vertical vane

Straight

Straight

The operation mode is indicated by the AREA

lamp as following

 

 

AREA lamp

 

 

L

AREA

R

EMERGENCY

 

 

COOL

 

Lighted

 

 

EMERGENCY

 

Not lighted

 

 

HEAT

 

 

STOP

NOTE:

This is the indication of EMERGENCY OPERATION mode. AREA setting is not available during EMER-

GENCY OPERATION.

When the system turns OFF, compressor will not restart for 3 minutes as 3-minute time delay function operates to protect compressor from overload.

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Mitsubishi Electronics MSZ-FD35VA EMERGENCY/TEST Operation, Minute Time Delay Operation, Emergency Operation switch E.O.SW