4.31 Cavity Temperature Sensor
4.31.1 Cavity Temperature Sensor Function
The Cavity Temperature sensor reads the temperature of the motor cooling gas within the shaft cavity as it exits the
Stator.
Figure 4-267 Cavity Sensor
4.31.2 Cavity Temperature Sensor Connections
The Cavity Temperature sensor is located behind the Backplane. Refer to Figure 4-269 Cavity Temperature Sensor
The Cavity Temperature Sensor is connected to the J23 connector on the Backplane. Refer to Figure 4-238 Backplane
4.31.3 Cavity Temperature Sensor Verification
1. Isolate compressor power.
2. Remove the Service Side Cover. Refer to Section 4.1.3.1 Service Side Cover Removal and Installation on
3. Wait for the LEDs on the Backplane to turn off.
4. Disconnect the Cavity Temperature Sensor Cable, J23, from the Backplane.
5. Set multimeter for resistance measurements.
6. Measure the resistance between the Cavity Temperature Sensor terminals 1 and 3. Refer to Figure 4-
268 Cavity Temperature Sensor Terminal.
l
The Cavity Temperature Sensor is a 10KΩ @ 77°F (25°C) NTC thermistor. The resistance value should
correspond to the chart in Figure 4-273 Temperature vs. Resistance on page 246.
7. Measure the resistance of the Cavity Temperature Sensor terminals 1 and 3 to ground.
l
The resistance value should be open or infinite.
8. Connect the Cavity Temperature Sensor Cable, J23, to the Backplane.
9. Install the Service Side Cover. Refer to Section 4.1.3.1 Service Side Cover Removal and Installation on
10. Return the compressor to normal operation.
Figure 4-268 Cavity Temperature Sensor Terminal
Page 242 of 294 - M-SV-001-EN Rev. H 1/23/2023
Summary of Contents for Turbocor TT Series
Page 2: ...THIS PAGE INTENTIONALLY LEFT BLANK Page 2 of 294 M SV 001 EN Rev H 1 23 2023...
Page 14: ...Page 14 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 16: ...Page 16 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 18: ...Figure 1 2 New Type Code Page 18 of 294 M SV 001 EN Rev H 1 23 2023...
Page 46: ...Page 46 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 250: ...Page 250 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 268: ...Figure 5 3 Bearing Calibration Flow Page 268 of 294 M SV 001 EN Rev H 1 23 2023...
Page 274: ...Page 274 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 286: ...Page 286 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 290: ...Page 290 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
Page 292: ...Page 292 of 294 M SV 001 EN Rev H 1 23 2023 THIS PAGE INTENTIONALLY LEFT BLANK...
