Fujitsu ASG30LMTA Service Instruction page 9

5. HEATING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure4.
On the other hand, if switched in [HIGH]
of [HEAT] operation modes QUIET, LOW, MED, HIGH, as shown in Table4.
( Fig.4 : Airflow change - over ( Heating : AUTO ) )
TR-Ts > -1°C
-1°C > TR-Ts > -2°C
-2°C > TR-Ts
6. COOL AIR PREVENTION CONTROL (Heating mode)
The maximum value of the indoor fan speed is set as shown in Figure5, based on the detected
temperature by the indoor heat exchanger sensor on heating mode.
( Fig.5 : Cool Air Prevention Control )
Indoor heat exchanger
temperature rises
42°C
*Me+
39°C
*Lo
37°C
30°C
7. MOISTURE RETURN PREVENTION CONTROL (Cooling mode& Dry mode)
Switch the airflow [AUTO] at cooling mode, and the indoor fan motor will run as shown in Figure6.
( Fig.6 : Indoor Fan Control )
Compressor
ON
OFF
Indoor fan
Setting air flow
Indoor fan
(as shown in Table 5)
S-Lo
OFF
( Table5 : Indoor fan speed )
30,36LMTA
AMP Air Conditioning
When the room
temperature rises
Low mode
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Med mode
Med+ mode
Indoor heat exchanger
temperature drops
Hi
or setting fan mode
or setting fan mode
or setting fan mode
Cool air
prevention
S-Lo
*Lower speed is selected.
10 30
Dry
X zone J zone Y zone
780rpm 680rpm 680rpm
[QUIET], the indoor motor will run at a constant airflow
When the room
temperature drops
TR-Ts > -1.5°C
-1.5°C > TR-Ts > -2.5°C
-2.5°C > TR-Ts
37°C
34°C
32°C
28°C
60 180 60
Cooling
780rpm
01-06
www.ampair.co.uk | sales@ampair.co.uk
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TR : Room temperature
Ts : Setting temperature
180 60 10 30
(SEC)