Mitsubishi Electric MSZ-SF15VA-E1 Service Manual page 17

9-9. i-save ( ) OPERATION
1. How to set i-save operation
(1) Press STOP/OPERATE (MSZ-SF·VA-
(2) Select COOL, HEAT or ECONO COOL mode.
(3) Press i-save button.
(4) Set the temperature, fan speed, and airf ow 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 same setting is selected from the next time by simply pressing i-save button.
9-10. EMERGENCY/TEST OPERATION
In the 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 miss-
ing 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 opera-
tion is for servicing. The indoor fan runs at High speed and the tem-
perature control does not work. After 30 minutes of test run operation,
the system shifts to EMERGENCY COOL/HEAT MODE with a set tem-
perature of 24°C. The fan speed shifts to Med. The coil frost preven-
tion works even in the test run or the 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 the latter case, normal operation
will start.
NOTE: Do not press EMERGENCY OPERATION switch during normal operation.
9-11. 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.
OBH555D
)/OPERATE/STOP (Other models) button.
,
E4 ER4
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
17
COOL/HEAT
24°C
Med.
Auto
↓
Lighted
Not lighted
↓