Cool/Heat/Dry/Fan Mode Operation; Air-Conditioner Operable Temperature Setting; Characteristics Of Heat Mode Operation - Mitsubishi Electric SRF25ZIX-S User Manual

COOL/HEAT/DRY/FAN mode operation

Airflow direction adjustment procedure.
NOTE
• In case air is not blown out, when starting the heating operation.
• The operation program can also be set or changed when the
air-conditioner is not in operation.

Air-conditioner operable temperature setting

■ Use within the following operational range. Operating outside of this range may result in the protection devices being activated, preventing the
unit from working.
Outside temperature Approximately -15 to 46 °C
Inside temperature Approximately 18 to 32 °C
Below approximately 80%
The long-term use of the unit with a humidity level
Inside humidity
exceeding 80% may result in condensation forming on the
surface of the indoor unit, leading to water drips.

Characteristics of HEAT mode operation

Mechanism and capacity of HEAT mode operation
■ Mechanism
• The unit draws heat from the cold outside air, transfers it to indoors and heats the room. As a characteristic of heat pump system, the heating capacity
reduces when the outside air temperature gets colder.
• It may take some time to supply hot air after turning on the air-conditioner.
• If the outside temperature becomes extremely low, it would be better to use an additional source of heating.
Defrosting
If the outside temperature becomes low and humidity is high, the heat exchanger in the outdoor unit may frost over, which prevents efficient heating.
If this happens, the automatic defrost function is activated and during defrosting the heating operation stops for 5 to 15 minutes
during defrosting.
• Both indoor and outdoor fans stop and the RUN light blinks slowly (1.5 sec. ON, 0.5 sec. OFF) during defrosting.
• The outdoor unit may give off some steam during defrosting. This is to help the defrosting process and is not a defect.
• The HEAT operation resumes as soon as defrosting has been completed.
• Although the upper and lower air outlets are selected, the lower flap closes during defrost.
Point the remote control toward the air-conditioner, and
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Cooling operation
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Press the MODE select button.
Move the [ mark] to the required operation position.
(Cool), (Heat), (Dry), (Fan)
Press the ON/OFF button.
Press the TEMP button.
Press or button for the preferred temperature.
Standard
Press the FAN SPEED button
Set the fan speed as preferred.
To stop: Press the ON/OFF button.
Approximately -15 to 21 °C
Approximately 15 to 30 °C
Heating operation
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