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M-SV-001-EN Rev. G
9. Check that all four (4) LEDs are blinking. Refer to "Figure 4-50 Backplane Cool LEDs".
Figure 4-50 Backplane Cool LEDs
10. Verify the IGV position indicator moves toward closed.
11. Measure the +15V test point on the Backplane to verify voltage is supplied to the Serial Driver
for the IGV. Refer to "Figure 4-51 Bac15V Test Point".
Figure 4-51 Bac15V Test Point
4.10.3 IGV Housing Removal and Installation
4.10.3.1 IGV Housing Assembly Removal
1. Isolate compressor power as described in Section "1.8 Electrical Isolation" on page 19.
2. Remove the clamp securing the IGV Connector. Refer to "Figure 4-52 IGV Harness Removal" for
this and the following step.
3. Disconnect the IGV Motor Cable and Suction Sensor connector.
Figure 4-52 IGV Harness Removal
IGV Stepper
Motor LEDs
Cool-L & Cool-H
LEDs
+15V Test Point
• • • CAUTION • • •
Removal of the IGV mounting fasteners will release refrigerant. Isolation and recovery of the refrigerant must be performed by a
qualified service technician adhering to industry/ASHRAE standards.
IGV Motor Feedthrough
Suction Sensor
Cable Harness
TTS300 Major Rev F shown
Summary of Contents for Turbocor TTS Series
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