SiBE12-908 Control Specification
Function and Control 44
3.4.5 Compressor Protection Function
When turning the compressor from OFF to ON, the upper limit of frequency must be set as
follows. (The function must not be used when defrosting.)
3.5 Discharge Pipe Temperature Control
Outline The discharge pipe temperature is used as the compressor's internal temperature. If the
discharge pipe temperature rises above a certain level, the operating frequency upper limit is
set to keep this temperature from going up further.
Detail Divide the Zone
Management within the Zones
40 class 50 class
FCG 1 62 55
FCG 2 72 70
FCG 3 90 85
TCG 1 140 150
TCG 2 180 180
TCG 3 300 300
TCG1
TCG2
TCG3
(sec)
Time
Frequency
FCG3
FCG2
FCG1
(Hz)
40 class 50 class
A 110 110
B 103 103
C 102 102
D 101 100
E97 95
Zone Control contents
Stop zone When the temperature reaches the stop zone, stop the compressor and
correct abnormality.
Drooping zone Start the timer, and the frequency is drooping.
Keep zone Keep the upper limit of frequency.
Return / Reset zone Cancel the upper limit of frequency.
(R10341)
A°C
B°C
C°C
D°C
E°C
Stop
Drooping
Keep
Up
Return