Danfoss Turbocor VTT Series - Figure 150 - Front Bearing Power Feed through Pinout; Table 29 - Front Bearing Coil Resistance; Verification

118 of 165 M-SV-VT-001-EN Rev. A
Compressor Components
46. Leak test the Compressor to the appropriate pressure and industry standards.
47. Evacuate the Compressor to the appropriate pressure and industry accepted standards.
48. Charge the Compressor with refrigerant.
49. Restore power to the Compressor.
3.7.2.1.1 Verication
1. Disconnect the PWM connector from the bearing power feed through.
2. Verify bearing coil resistance at the feed through pins according to Table 29 (Front Bearing Coil
Resistance).
3. Verify that the resistance of each pin to ground is open.
Table 29 - Front Bearing
Coil Resistance
Bearing Identication
Feed Through Pin
Identication
Expected Value
Front Radial Coil
1 & 3 2.6 - 3.5 Ω
2 & 4 2.6 - 3.5 Ω
Note: Resistance to ground and between coils should be > 100Mohms @ 1kV
Figure 150 - Front Bearing
Power Feed Through Pinout