Mitsubishi Electric Y Series Manual page 171

Dual set point
Y-Series EP R2-Series EP WY-Series
Y-Series P R2-Series P WR2-Series
Normally, the desired room temperature is set to the same value for cooling and heating. However, the dual set point
function allows different temperatures to be set for cooling and heating. When operation switches from cooling to heating
or vice versa, the preset temperature changes accordingly.
Setting dual set points in Auto mode on R2 and WR2 models improves energy efficiency,
compared to setting a single set point.
When the operation mode is set to Auto (dual set point) mode, two preset temperatures (one each for cooling and
heating) can be set. Depending on the room temperature, the indoor unit will automatically operate in either the cooling
or heating mode and keep the room temperature within the preset range.
The outdoor unit does not operate in the comfortable temperature band defined by two temperature points where the
thermostat is off. This cuts down on unnecessary operation of the air conditioning system.
*This function is supported only when all the indoor units, remote controllers, and system controllers that are connected to a given group are compatible with the function.
• Operation pattern in Auto (dual set point) mode
Temperature
Setting
two points
*Selectable
Morning
Auto mode with single set point
*For details of the installation restrictions, refer to the DATABOOK.
Cooling
Comfortable
temperature band
between two points
(Thermostat OFF)
Heating
Daytime
Auto mode with dual set point
Thermo OFF status is energy saving as the refrigerant stops circulating.
OUTDOOR UNIT FUNCTIONS
Cooling
Cooling
26°C
(~35°C)
Heating
22°C
(17°C~)
Heating
Evening
Time
Room temperature
stays within the
comfortable temperature
Energy saving by pre-
venting unnecessary
operation
Heating Cooling
operation operation
171
band.
Thermo OFF