Mitsubishi Electric MSZ-AP20VG-E3 Service Manual page 20

9-10. i-save ( ) OPERATION
1. How to set i-save operation
(1) Press OFF/ON(stop/operate) button.
(2) Select COOL, HEAT, ECONO COOL or NIGHT MODE.
(3) Press i-save button.
(4) Set the temperature, fan speed, and airflow direction for i-save operation.
NOTE:
• i-save operation cannot be selected during DRY or AUTO mode operation.
• The setting range of HEAT mode i-save operation is 10°C and 16 - 31°C.
• 2 groups of setting can be saved. (One for COOL/ECONO COOL, one for HEAT)
• i-save operation and the weekly timer operation cannot be used together.
2. How to cancel operation
• Press i-save button again.
• i-save operation can also be cancelled by pressing Operation select button to change the operation mode.
The preferred setting can be saved for the next time with a single press of i-save button.
9-11. EMERGENCY/TEST OPERATION
In the case of test run operation or emergency operation, use the emergency operation switch on the right side of the
indoor unit. Emergency operation is available when the remote controller is missing or has failed, or when the batteries in
the remote controller are running down. The unit will start and OPERATION INDICATOR lamp will light up.
The first 30 minutes of operation is the test run operation. This operation is for servicing. The indoor fan runs at
High speed and the 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. The coil frost prevention
works even in the test run or the emergency operation. In the test run or emergency operation, the horizontal vane oper-
ates in VANE AUTO ( ) mode. Emergency operation continues until the emergency operation switch is pressed once or
twice or the unit receives any signal from the remote controller. In the latter case, normal operation will start.
NOTE: Do not press the emergency operation switch during normal operation.
9-12. 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.
OBH838C
Emergency operation switch
(E.O. SW)
Operation mode
Set temperature
Fan speed
Horizontal vane
The operation mode is indicated by the
Operation Indicator lamp as following
Operation Indicator lamp
EMERGENCY COOL
EMERGENCY HEAT
STOP
20
COOL/HEAT
24°C
Med.
Auto
↓
Lit
Not lit
↓