Tandems with FI on each compressor
The following table lists all possible Orbit tandem compounds with frequency inverter on each compressor.
In each tandem or trio, one compressor is the primary compressor. This should be the compressor with the lowest displacement in the tandem, because it is the first to receive oil from the BAHT header:
- In case of a vertical BAHT header (ORBIT 6 tandem and trio, mixed tandem), the primary compressor is the compressor connected to the bottom part of the BAHT.
- In case of a horizontal BAHT header (ORBIT 8 tandem), the primary compressor is the compressor connected next to the closed end.
To identify the mounting position which is indicated by "primary" and "secondary" compressor, please contact Bitzer for the respective compound assembly drawings.
Both compressors must always operate at the same speed / frequency: f (1) = f (2)!
Primary compr. | f (min.) | f (max.) | Secondary compr. | f (min.) | f (max.) | Comment |
|---|---|---|---|---|---|---|
GSD80295 | 35 Hz | 75 Hz | GSD80385 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80295 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80295 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80385 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80385 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80421 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD60137 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD60154 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD60154 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD60182 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD60182 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60154 | 35 Hz | 75 Hz | GSD60182 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD60235 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD60235 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60154 | 35 Hz | 75 Hz | GSD60235 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60182 | 35 Hz | 75 Hz | GSD60235 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD80295 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD80295 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60154 | 35 Hz | 75 Hz | GSD80295 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60182 | 35 Hz | 75 Hz | GSD80295 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD80385 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD80385 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60235 | 35 Hz | 75 Hz | GSD80295 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60154 | 35 Hz | 75 Hz | GSD80385 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60182 | 35 Hz | 75 Hz | GSD80385 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60154 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60182 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60235 | 35 Hz | 75 Hz | GSD80385 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60154 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60235 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60182 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60235 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60120 | 35 Hz | 75 Hz | GSD60120 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60137 | 35 Hz | 75 Hz | GSD60137 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60154 | 35 Hz | 75 Hz | GSD60154 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60182 | 35 Hz | 75 Hz | GSD60182 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD60235 | 35 Hz | 75 Hz | GSD60235 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80295 | 35 Hz | 75 Hz | GSD80295 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80385 | 35 Hz | 75 Hz | GSD80385 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80421 | 35 Hz | 75 Hz | GSD80421 | 35 Hz | 75 Hz | f (1) = f (2) |
GSD80485 | 35 Hz | 75 Hz | GSD80485 | 35 Hz | 75 Hz | f (1) = f (2) |