Fujitsu AB12 Service Manual page 68

AUTO CHANGEOVER operation (COOLING ONLY TYPE )
Operation flow chart
START
Room temp.
Ts+2 C ?
Yes
COOLING OPERATION
Room temp.
control
Yes
Room temp.
Ts+1 C ?
• 3-min. ST Protection
• Room temperature control
NO
DRY OPERATION
NO
Yes
Room temp.
Ts+2 C ?
NO
Refrigerant
circulation
stopped?
Yes
– 68 –
(1) When starting the operation at "AUTO" or
when switched to "AUTO" from other
modes, if the room temperature is higher
than the set temperature +2 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.
+2 C", the unit is changed into the "DRY"
mode.
"Room Temp.
NO
Set temp. (Ts)
Set Temp. (Ts) +2 C"
Cool
Ts+2 C
Dry
Ts C