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M-SV-001-EN Rev.E
Compressor Components
Table 14 - Magnetic Bearing
Coil Resistance Values
Compressor Model & Design Sequence
Connector Location Bearing Identification
Feed Through Pin
Identification
TT300, TT400C, E, F,
TG230, & TG390
TT350
TT400P, TT500, TT700,
TG310, & TG520
Rear Bearing
Connector
Rear Radial Coil
1 & 6 2.70 - 3.25Ω 2.70 - 3.25Ω
2 & 5 2.70 - 3.25Ω 2.70 - 3.25Ω
Axial Coil 3 & 4
5.70 - 6.20Ω
(TT300/TG230 only)
6.00 - 6.70Ω
(TT400C, E, F, TG390
only)
6.00 - 6.70Ω
Front Bearing
Connector
Front Radial Coil
1 & 2 2.70 - 3.25Ω 4.70 - 5.20Ω
3 & 4 2.70 - 3.25Ω 4.70 - 5.20Ω
Notes See Figure 74, 75, and 76 for pin locations
All resistance values are in ohms. Resistance
to ground and between coils should be
>100MΩ @1KV
Figure 83 - Rear Bearing 6-
Pin Orientation (TT300 Serial
Numbers <081015110 Only)
TT300 Serial Numbers <0810151110
Only
TT300 Serial Numbers
>0810151110 and All Other Models
Figure 84 - Front Bearing 4-
Pin Orientation
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