4.5.2 Compressor Controller Cable Harness Removal and Installation
Compressor Controller Cable Harness Removal
1. Isolate compressor power as described in Section 1.8 Electrical Isolation on page 22.
2. Remove the Service Side Cover. Refer to Section 4.1.3.1 Service Side Cover Removal and Installation on
3. Remove the Soft Start. Refer to Section 4.14.3 Soft Start Removal and Installation on page 117.
4. Remove the Terminal Block Assembly (excluding TTS300/TGS230 compressors). Refer to Section 4.11.2
3-Phase Main Voltage Input Terminal Block Removal and Installation on page 102.
5. Remove the DC Bus Bar and Capacitor Assembly. Refer to Section 4.21.3 DC Capacitor Bus Bar Assembly
Removal and Installation on page 168.
6. Refer to Figure 4-22 Backplane Connections and remove the following connectors from the Backplane:
l
Pressure/temperature sensor connectors (J17, J18, and J19)
l
IGV motor drive connector (J21)
Figure 4-22 Backplane Connections
7. Disconnect the cables from the suction and discharge pressure sensors. Refer to Figure 4-23
Pressure/Temperature and SCR Temperature Sensor Locations - TTS300/TGS230 on page 69, Figure 4-
24 Pressure/Temp and SCR Temp Sensor Locations - TTS/TGS (Except TTS300/TGS230) on page 69, and
Figure 4-25 Pressure/Temperature Sensor Locations - TTH375/TGH285 on page 69 for this and the
following step.
NOTE
All TTH/TGH compressors and all TTS/TGS Major Rev H and later compressors do not contain an SCR Temperature Sensor.
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Summary of Contents for Turbocor TT Series
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