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CVHE-SVU01E-EN
78
Oil Temperature Control
The oil heater is used to maintain the
oil temperature within +/- 2.5°F (1.4°C)
of the oil temperature control
setpoint. The oil heater is
commanded off when the oil pump
is commanded on.
If the oil temperature is at or below
the Low Oil Temperature Cutout
setpoint, this diagnostic will be
issued and stops the compressor.
This diagnostic is ignored for the first
10 minutes of compressor run. After
that, if the oil temperature falls below
this cutout temperature for more than
60 consecutive seconds this
diagnostic is issued.
High Oil Temperature Cutout
Name: High Oil Temperature Cutout
Type of Diagnostic: Latching, results
in Immediate Shutdown.
Default Setpoint value: 180°F (82.2°C)
Implemented to avoid overheating of
the oil and the bearings.
If the oil temperature is at or above
the High Oil Temperature Cutout
setpoint this diagnostic will be
issued - which will stop the
compressor.
If Oil Temperature violates this
temperature cutout for more than 120
seconds this diagnostic is issued.
Manual Oil Pump Control
The oil pump control accepts
commands to turn on the oil pump.
The manual oil pump choices will be
“Auto” or “On”. When the oil pump
is commanded “On”, it will revert to
“Auto” in 15 minutes.
Machine Protection
and Adaptive
Control