Mitsubishi Electric M Series Manual page 299

M series
PROGRAM TIMER
• OFF timer and ON timer can be used in combination. The timer of the set time that is reached first will operate first.
• " " and " " display show the order of OFF timer and ON timer operation.
(Example 1) The current time is 8:00 PM.
The unit turns off at 11:00 PM, and on at 6:00 AM.
NOTE : If the main power is turned off or a power failure occurs while AUTO START/STOP timer is active, the timer setting
is cancelled. As these models are equipped with an auto restart function, the air conditioner starts operating with
timer cancelled when power is restored.
g. EMERGENCY/TEST OPERATION
In case of test run operation or emergency operation, use EMERGENCY OPERATION switch on the front 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 OPERATION INDICATOR lamp will light.
The first 30 minutes of operation is the test run operation. This operation is for servicing. The Indoor fan speed runs at
High speed and the system is in continuous operation (The thermostat in ON).
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.
The coil frost prevention works even in emergency operation, and defrosting too.
In the test run or emergency operation, the horizontal vane operates in VANE AUTO (
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.
Operation indicator lamp
EMERGENCY
h. 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 form overload.
OPERATION switch
CEILING CASSETTE MLZ-KA·VA Series
CEILING CASSETTE MLZ-KA·VA Series
(Example 2) The current time is 11:00 AM.
The unit turns on at 5:00 PM, and off at 9:00 PM.
Operation mode COOL
Set temperature 24°C
Fan speed Medium
Horizontal vane Auto
The operation mode is indicated by the Operation
indicator lamp on the indoor unit as following
Operation Indicator lamp
Press once <COOL>
Press again <HEAT>
Press once again <STOP>
) mode.
HEAT
24°C
Medium
Auto
Lighted
Not lighted
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