Mitsubishi Electric CITY MULTI PVFY-P12NAMU-E Manuel D'utilisation page 6

SETBACK mode:
The SETBACK function automatically switches the operation mode between cooling and heating to
maintain the room temperature within the set temperature range.
The preset temperatures for cooling and heating set in SETBACK mode can be different from the
preset temperatures for other modes.
During operation in SETBACK mode
Preset temp.
(COOL)
Preset temp.
(HEAT)
HEAT
Caution:
Never expose your body directly to cool air for a long time. Excessive exposure
to cool air is bad for your health, and should therefore be avoided.
• When the air-conditioner is used together with burners, thoroughly ventilate
the area. Insuffi cient ventilation can result in accidents due to oxygen
defi ciency.
• Never place a burner at a place where it is exposed to the airfl ow from the
air-conditioner.
Doing so can result in imperfect combustion of the burner.
• The microcomputer functions in the following cases:
• Air does not blow out when heating starts.
- To prevent any cool air from escaping, the indoor fan is gradually switched in
sequence from faint airfl ow/weak airfl ow/set airfl ow according to the temperature
rise of the blown out air. Wait a moment until the airfl ow comes out naturally.
• The fan is not moving at the set speed.
- In some models, the system switches over to faint airfl ow when the temperature
of the room reaches the set temperature. In other cases, it stops to prevent any
cool air from escaping during the defrosting operation.
• Air fl ows out even if operation is stopped.
- Approximately 1 minute after the stop of operation, the indoor fan sometimes
rotates to eliminate extra heat generated by the electric heater, etc.
The fan speed comes to low or high.
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The room temperature
changes corresponding
to the change in the
outside temperature.
COOL HEAT
Room
temperature
COOL