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 b5°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
ASU18RLF
14rps
67rps
ASU24RLF
16rps
90rps
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
30rps (18RLF), 30rps (24RLF), 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
25rps
15rps
0rps
18RLF
X zone
J zone
Y zone
Operating
frequency
J zone
Y zone
X zone
29rps
16rps
0rps
24RLF
Room Room
temperature temperature
X zone
J zone
Y zone