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M-SV-001-EN Rev. G
4.10.2 IGV Verification
4.10.2.1 IGV Stepper Motor Verification
1. Isolate compressor power..
2. Disconnect the IGV Motor Cable from the suction pressure/temperature sensor and the IGV
Motor power feedthrough. Refer to "Figure 4-43 IGV Motor Feedthrough" for this and the
following step.
3. Measure the resistance between terminals 1 and 2, and 3 and 4 of the IGV Motor feed through.
The measured value should be between 46Ω and 59Ω.
4. Measure the resistance between the IGV Motor feed through terminals and the IGV Housing.
The measured value should be open or infinity.
Figure 4-43 IGV Motor Feedthrough
4.10.2.2 IGV Operation Verification
Some of the steps contained within this section require the use of the SMT. Refer to the Service
Monitor Tool Manual regarding the proper usage of the SMT.
1. Remove the Service Side Cover. Refer to "4.2.3.1 Service Side Cover Removal and Installation"
on page 58.
2. Open the SMT installed on your computer and connect to the compressor. Refer to "Figure
4-44 SMT Icon".
Figure 4-44 SMT Icon
3. Open the Compressor Configuration tool. Refer to "Figure 4-45 Compressor Configuration
Tool".
Figure 4-45 Compressor Configuration Tool
1
2
3
4
Cable Clip
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