Control Specification SiBE041102_A
26 Function and Control
3.3.5 Compressor Protection Function
When turning the compressor from OFF to ON, the upper limit of frequency is set as follows.
(The function is not activated when defrosting.)
3.4 Discharge Pipe Temperature Control
Outline The discharge pipe temperature is used as the internal temperature of the compressor. If the
discharge pipe temperature rises above a certain level, the upper limit of frequency is set to
keep this temperature from rising further.
Detail
A (Hz) 58
B (Hz) 72
C (Hz) 90
D (seconds) 180
E (seconds) 180
F (seconds) 10
(sec.)
Time
(R13528)
(Hz)
Frequency
C
B
DEF
A
Zone Control
Stop zone When the temperature reaches the stop zone, the compressor stops.
Dropping zone The upper limit of frequency decreases.
Keep zone The upper limit of frequency is kept.
Up zone The upper limit of frequency increases.
Reset zone The upper limit of frequency is canceled.
A (°C) 110
B (°C) 105
C (°C) 101
D (°C) 99
E (°C) 97
(R14839)
Discharge pipe
temperature
Stop zone
Dropping zone
Keep zone
Up zone
Reset zone
E˚C
A˚C
B˚C
C˚C
D˚C