Mitsubishi Electric AE-200A Instruction Book page 171

Note: When the indoor units support a dual-set-point function, two different set temperatures (one for cooling and the other for heating)
can be set for the Auto mode. When this function is used, indoor units automatically switch over between cooling and heating,
based on the room temperature, to maintain the room temperature within the two predetermined temperatures. The graph below
shows an example of operation patterns of units operated in the dual-set-point mode.
If the indoor units of the selected unit group support the dual-set-point function, two different set temperatures (one for cooling and
the other for heating) can be set.
(1) Temperature setting for a group in which all indoor units support dual-set-point mode
Set temperature for cooling
Set temperature for heating
(2) Temperature setting for when the groups that support the dual-set-point mode and the groups that do
not are selected together
Set temperature for cooling
Set temperature for heating
Set temperature (single-set-point) for
groups that do not support the dual-set-
WT07996X02
Operation patterns in the dual-set-point mode
Set temp.
(Cool)
Set temp.
(Heat)
Heat
Automatically switches over between cooling and heating,
based on the room temperature, to maintain the room
temperature within the two predetermined temperatures.
point mode
Room temperature
fluctuates in response
to changes in outdoor
temperature.
Cool Heat
171
Room
temp.
Cool