Back-Up Switch; Power-Cut Compensation - Mitsubishi Heavy Industries SRK20HC-S Technical Manual

Unit indication section
Models All models
RUN
TIMER
HIPOWER
ECONO

4.2 Back-up switch

When the remote controller batteries become weak, or if the remote controller is lost or malfunctioning, this switch may be used to turn
the unit on and off.
(a) Operation
Push the switch once to place the unit in the automatic mode. Push it once more to turn the unit off.
(b) Details of operation
The unit will go into the automatic mode in which it automatically determines, from room temperature (as detected by sensor),
whether to go into the cooling, thermal dry or heating modes.
Function
Room temperature
Operation mode
Cooling About 26ºC
Thermal dry About 25ºC
Heating About 25ºC

4.3 Power-cut compensation

(1) Power-cut compensation is a function that records the operational status of the air-conditioner immediately prior to it being
switched off by a power cut, and then automatically resumes operations at that point after the power has been restored.
(2) The following settings will be cancelled:
(a) Timer settings
(b) High-power operations
Notes (1) The power-cut compensation function is set at on when the air-conditioner is shipped from the factory.
Consult with your dealer if this function needs to be switched off.
(2) If the power-cut compensation function is set at on, ensure that the power switch is turned off after operations
have been halted.
(If the power switched is turned off while the air-conditioner is still operating, the fan in the indoor unit will
start operating in the same way as when the switch is turned on. The indoor unit will commence operations
approximately three minutes after the power has been switched on.)
(3) When power failure ocurrs, the timer setting is cancelled. Once power is resumed, reser the timer.
(4) If the jumper wire (J7) "REMOTE/AUTORESTART" is cut, auto restart is disabled. (See the diagram at right)
Fan speed
setting
Auto
RUN (HOT KEEP) light (green)
• Illuminates during operation.
• Flashes at air flow stop due to the 'HOT KEEP'.
TIMER light (yellow)
Illuminates during TIMER operation.
HI POWER light (green)
Illuminates during HI POWER operation.
ECONOMY light (orange)
Illuminates during ECONOMY operation.
Flap Timer switch
Auto Continuous
ON/OFF button
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