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Bearing Sensor Cable Installation:
1. Ensure that all connectors are clean and free of grease and silicone gel.
2. For the Front Bearing Sensor Cable, refer to Steps 3-5; for the Rear Bearing Sensor Cable, refer to Steps
6-8.
3. Install the 9-pin connector at the Front Bearing Sensor Feedthrough and torque the fasteners to 0.5 Nm
(0.4 ft.lb.; 4.4 in.lb.).
4. Apply a thin coating of dielectric grease to the exterior of the bearing sensor 9-pin connector where it
meets the feedthrough to seal from moisture ingress.
5. Install the cable to J10 on the Backplane. Ensure that plug is inserted in correct polarity. Refer to the
locating keys on the plug and slots in the connector (The Front locating key should be at the left of the
J10 Backplane clip.). Gently squeeze the connector retainers to snap the connectors in place.
6. Install the 9-pin connector at the Rear Bearing Sensor Feedthrough and torque the fasteners to 0.5 Nm
(0.4 ft.lb.; 4.4 in.lb.).
7. Install the ground wire to J11 or J12 on the Backplane.
8. Install the cable to J9 on the Backplane. Ensure that plug is inserted in correct polarity. Refer to the
locating keys on the plug and slots in the connector (The Rear locating key should be at the top of the
J9 Backplane clip.). Gently squeeze the connector retainers to snap the connectors in place. Refer to
Section 4.30.3 Bearing Sensor Verification.
Figure 4-264 Bearing Cable Orientation
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.
11. Verify sensor cable functionality by performing a bearing calibration. Refer to Section 5.3 Bearing
4.30.5 Bearing Sensor Feedthrough Removal and Installation
The following procedure will contain the same steps for either the Front or Rear Bearing Sensor Feedthrough.
4.30.5.1 Bearing Sensor Feedthrough Removal
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. Isolate the compressor and recover the refrigerant according to industry standards. Refer to Section 3.1
Refrigerant Containment on page 41.
5. Remove the Service Side Cover. Refer to Section 4.1.3.1 Service Side Cover Removal and Installation on
M-SV-001-EN Rev. H-1/23/2023 Page 239 of 294
Содержание Turbocor TT Series
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