Mitsubishi Electric M Series Manual page 212

WALL-MOUNTED MSZ-FD•VA/S Series
k. 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)
l. 3-MINUTE TIME DELAY 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.
m. ACTUATOR CONTROL
m-1. Outdoor fan motor control
The fan motor turns ON/OFF, interlocking with the compressor.
[ON] The fan motor turns ON 5 seconds before the compressor starts up.
[OFF] The fan motor turns OFF 15 seconds after the compressor has stopped running.
Compressor
Outdoor fan
motor
C-210
The operation mode is indicated by the AREA lamp as following
NOTE:
This is the indication of EMERGENCY OPERATION mode.
AREA setting is not available during EMERGENCY OPERATION.
5 seconds
ON
OFF
ON
OFF
Operation mode COOL
Set temperature 24°C
Fan speed Med.
Horizontal vane Auto
Vertical vane Straight
AREA lamp L AREA R
EMERGENCY
COOL
↓
EMERGENCY
HEAT
↓
STOP
15 seconds
M series
HEAT
24°C
Med.
Auto
Straight
Lighted
Not lighted