Fujitsu ASU 9RLF User Manual

2. HEATING OPERATION
2-1 HEATING CAPACITY CONTROL
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
* If the room temperature is lower by 6°F(3°C) than a set temperature, the compressor operation
frequency will attain to maximum performance.
* If the room temperature is higher 5°F(2.5°C) than a set temperatire, the compressor will be
stopped.
* When the room temperature is between +5°F(+2.5°C) to -6°F(-3°C) of the setting temperature,
the compressor frequency is controlled within the range shown in Table2.
( Table2 : Compressor Frequency Range )
01-02
minimum
frequency
maximum
frequency
ASU9RLF 22rps 99rps
ASU12RLF 18rps 130rps
ASU15RLS 15rps 119rps
3. DRY OPERATION
3-1 INDOOR UNIT CONTROL
The compressor rotation frequency shall change according to the temperature, set temperature,
and room temperature variation which the room temperature sensor of the indoor unit body has
detected as shown in the Table3.
However, after the compressor is driven, the indoor unit shall run at operation frequency of
64rps (9RLF), 61rps (12RLF), 51rps (15RLS), for a minute.
Ts+1°F
(Ts+0.5°C)
Ts-1°F
(Ts-0.5°C)
Ts-3°F
(Ts-1.5°C)
Ts+3°F
(Ts+1.5°C)
( Table3 : Compressor frequency )
( Fig.2 : Compressor Control based on Room Temperature )
Operating
frequency
37rps
28rps
0rps
9RLF
X zone
J zone
Y zone
Operating
frequency
J zone
Y zone
X zone
33rps
25rps
0rps
12RLF
Operating
frequency
J zone
Y zone
X zone
29rps
18rps
0rps
15RLS
Room Room
temperature temperature
X zone
J zone
Y zone

Fujitsu ASU 9RLF Specifications

General

Brand	Fujitsu
Model	ASU 9RLF
Category	Air Conditioner
Language	English