Auto Changeover Cooling / Dry Operation - Fujitsu Airstage VR-II Series Service Manual

3-2-3 Auto Changeover Cooling / Dry Operation

[Function available Indoor unit(s)]
Connectable type
: Cooling Only indoor unit
Judge cooling/dry by the difference between the setting temperature and the room temperature.
In case of group connection of cooling only indoor unit, the room temperature sensor in wired remote controller
manages the operating mode.
AUTO CHANGEOVER operation (COOLING ONLY TYPE )
Operation flow chart
START
Room temp.
Ts+4°F(2°C)?
COOLING OPERATION
Yes
Room temp.
Ts+2°F(1°C) ?
Yes
Room temp.
Ts+4°F(2°C)?
Refrigerant
circulation stopped?
(due to temp.)
Refrigerant
NO
circulation started?
(due to temp.)
T Setting temperature
:
S
NO
Yes
DRY OPERATION
NO
NO
NO
Yes
Yes
03-05