Fujitsu AR G07LL A Series Service Instruction page 11

5. HEATING OPERATION (Auto : Heating)
Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature,
as shown in Fig 5.
On the other hand, if switched in [Hi]
of [Heat] operation modes Quiet, Lo, Me, Hi, as shown in Table 2.
( Fig.5 : Airflow change - over (Heating : Auto) )
TR-Ts > -1°C
=
-1°C > TR-Ts > -2°C
=
-2°C > TR-Ts
TR-Ts > -1°C
=
-1°C > TR-Ts > -2°C
=
-2°C > TR-Ts
6. COOL AIR PREVENTION CONTROL (For Heating and Min. Heat operation)
The maximum value of the indoor fan speed is set as shown in Fig 6, based on the detected
temperature by the indoor heat exchanger sensor in heating mode.
Field setting is necessary at AR and AU type as "Cool air prevention : effective"
( Fig.6 : Airflow change - over for cool air prevention)
During NORMAL HEATING OPERATION
< AS*G type >
When Indoor heat exchanger
temperature rises
42°C
*
Me+ or setting
39°C
*
Lo or setting
37°C
Cool air
prevention
30°C
*
Lower speed is selected
[Quiet], the indoor motor will run at a constant airflow
< AS*G type >
When the room
temperature rises
Lo
Me
Me+
< AU*G / AR*G / AG*G type >
When the room
temperature rises
Lo
Me
Hi
When Indoor heat exchanger
temperature drops
Hi
37°C
FAN mode
34°C
FAN mode
32°C
28°C
S-Lo
When the room
temperature drops
TR-Ts > -1.5°C
=
-1.5°C > TR-Ts > -2.5°C
=
-2.5°C > TR-Ts
When the room
temperature drops
TR-Ts > -1.5°C
=
-1.5°C> TR-Ts > -2.5°C
=
-2.5°C > TR-Ts
< AR*G type >
When Indoor heat exchanger
temperature rises
*
Hi or setting
37°C
*
Lo or setting
29°C
*
Lower speed is selected
01-07
TR : Room temperature
Ts : Setting temperature
When Indoor heat exchanger
temperature drops
FAN mode
32°C
FAN mode
24°C
S-Lo