SiENBE12-713 Control Specification
Function and Control 87
3.3.5 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 (only for heat pump model).)
Note: When the compressor doesn’t run for long time in the condition that the discharge pipe
temperature is 10°C or less, the time between FCG2 and FCG3 will be longer then 470 sec.
FCG 3
FCG 2
FCG 1
2YC45
80
65
55
Frequency
TCG120sec TCG200sec TCG470sec
Time
FCG3
FCG2
FCG1
(R1375)
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