Fujitsu AirStage AB12, Service Manual

Page: 68 / 199

(1) When starting the operation at “AUTO” or
when switched to “AUTO” from other
modes, if the room temperature is higher
than the set tempe2 C (Room
temp.
Set temp. (Ts) +2 C), “COOL”
mode is set automatically and an air con-
ditioner operates until the room tempera-
ture reaches the condition “Room temp.
Set temp. (Ts) +1 C”.
(2) When the room temperature is less than
the set temperature (Ts) +2 C at the start
of operation or changing into “AUTO”, or
after the room temperature reaches the
condition “Room temp.
Set temp. (Ts)
+2 C”, the unit is changed into the “DRY”
mode.
“Room Temp. Set Temp. (Ts) +2 C”
Yes
Yes
Yes
Room temp.
control
• 3-min. ST Protection
• Room temperature control
NO
Operation flow chart
START
Room temp.
Ts+2 C ?
Room temp.
Ts+1 C ?
Room temp.
Ts+2 C ?
COOLING OPERATION
DRY OPERATION
Yes
NO
NO
NO
Cool
Ts+2 C
Ts C
Dry
Refrigerant
circulation
stopped?
AUTO CHANGEOVER operation (COOLING ONLY TYPE )
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