Service manual

Hot Start System
Heating always begins comfortably with warm air, since the Hot Start System prevents cold air from being blown out at the
start of heating and during defrosting. (All heat pumps.)
Booster Heater
for Fast Warm-up.
Microprocessor controlled-Booster Heater automatically hastens the heating process to quickly warm up a room, and thereby
eliminates unnecessary energy use that occurs during prologned heating.
(All heat pumps.)
Automatic Change Vane System
The Automatic Change Vane System will automatically set the vane in a horizontal positioli for cooling. During heating
when the hot air is blowing strongly enough,
it will automatically adjust downward. The angle of the vane can be
adjusted with the Remote Controller. (MSH-12/15DN)
Adjustable Change Vane System
Choose the air direction that suits your needs. To achieve uniform
aimow for heating, adjust the louver downward. For cooling, keep
it
in a horizontal position. (MS(H)-O9DW)
During heatiyl 1 During cooling+
Restart Function (Optional)
The restart function restarts the equipment when power is restored
following an outage, selecting as required either cooling or heating
operation at a fixed temperature setting of
75F. (MS-OgDW, MSH-
09DW, MSH-12/15DN)
High Performance Rotary Compressor
The advanced design of Mitsubishi Electric's powerful and energy-
efficient rotary compressor results in lower operating costs and a longer
service life.