Mitsubishi MSH-A18WV Service Manual page 17

2. Cancel
TIMER setting can be cancelled with the ON/OFF TIMER buttons.
To cancel the ON timer, press the "ON-TIMER" button.
To cancel the OFF timer, press the "OFF-TIMER" button.
TIMER is cancelled and the display of set time disappears.
PROGRAM TIMER
• The OFF timer and ON timer can be used in combination.
• " " and " " display shows the order of the 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 : TIMER setting will be cancelled by power failure or breaker functioning.
8-8. EMERGENCY-TEST OPERATION
In case of test run operation or emergency operation, use the 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 remote
controller run down. The unit will start and the 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 is 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. speed.
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 the 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 the EMERGENCY OPERATION switch during normal operation.
PM
AM
EMERGENCY OPERATION switch
(Example 2) The current time is 11:00 AM.
The unit turns on at 5:00 PM, and off at 9:00 PM.
• The following indication applies regardless of
shape of the indicator.
Press once
Press again
Press once again
17
PM
PM
) mode.
OPERATION INDICATOR lamp
<Cool>
<Heat>
<Stop>