Control Specification SiUS041829E
50 Part 4 Functions and Control
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
the discharge pipe temperature from rising further.
Details
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.
09/12 class 18 class
(°C) (°F) (°C) (°F)
A 110 230.0 110 230.0
B 103 217.4 103 217.4
C 98 208.4 101.5 214.7
D 93 199.4 100 212.0
E 88 190.4 95 203.0
(R25005)
Discharge pipe
temperature
Stop zone
Dropping zone
Keep zone
Up zone
Reset zone
E
A
B
C
D
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