5.3.1
Compressor Capacity Slide Input Calibration with External Oil Pump
1. Ensure that the control panel is in
Service Mode
and the compressor is
Stopped
.
2. Touch the
Capacity Slide Position
entry in the
Sensor Calibration
display to bring up the calibration pad.
3. Touch the
OIL PUMP
button. The indicator on the right edge of the button will be illuminated green to
indicate that the oil pump is running. This step may be skipped for Vilter compressors.
4. Touch the
UNLOAD
button. Wait until the slide valve reaches the fully unloaded position, at which point
the value in the
Raw Signal
column should stabilize. The value that the signal will stabilize to is deter-
mined by the type of sensor being used.
Hint!
Certain Compressors will use reverse acting capacity sensors, which will stabilize to a
high value at the low offset.
5. Touch the
Save Low Offset
button. The corresponding slide valve position sensor output has been
recorded as the fully unloaded position.
6. Touch the
LOAD
button. Wait until the slide valve reaches the fully loaded position, at which point the
value in the
Raw Signal
column should stabilize. The value that the signal will stabilize to is determined
by the type of sensor being used.
7. Touch the
Save High Offset
button, the corresponding slide valve position sensor output has been
recorded as the fully loaded position.
8. Touch the
UNLOAD
button again. The compressor should fully unload and the indicated
Capacity Slide
Position
should track with it. Touch the
LOAD
button to fully load the compressor and observe the
Capacity Slide Position
.
9. If the
Capacity Slide Position
appears to track the
Raw Signal
, the calibration is complete. Turn off the oil
pump by touching the
OIL PUMP
button a second time.
10. Otherwise, repeat the procedure from step #1. Ensure that the slide position indicator reading changes
smoothly between full unload and full load.
11. Exit the calibration pad by touching the
X
button.
12. The compressor must remain stopped for a period of time determined by the
Oil Drain Timer
.
5.3.2
Compressor Capacity Slide Input Calibration without External Oil Pump
1. Ensure that the control panel is in
Service Mode
and the compressor is
Stopped
.
2. Touch the
Capacity Slide Position
entry in the
Sensor Calibration
display to bring up the calibration pad.
Sensor Calibration
Capacity Slide Position Calibration
Instruction Manual | GEA Omni™
Control panel
228
GEA Refrigeration North America, Inc. | E_806550_2 | Generated 12.01.2016
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