GSP even tandems

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:

ORBIT PRO tandem compounds of 2 GSP compressors of the same model.
*: Both compressors must operate at same frequency / speed.

Compressor 1

Compressor 2

Frequency compressor 1

Frequency compressor 2

GSP60120ZL

GSP60120ZL

45 .. 75 Hz*

45 .. 75 Hz*

60 .. 75 Hz

60 Hz

50 .. 75 Hz

50 Hz

60 Hz

45 .. 60 Hz

50 Hz

45 .. 50 Hz

GSP60137ZL

GSP60137ZL

45 .. 75 Hz*

45 .. 75 Hz*

60 .. 75 Hz

60 Hz

50 .. 75 Hz

50 Hz

60 Hz

45 .. 60 Hz

50 Hz

45 .. 50 Hz

GSP60154ZL

GSP60154ZL

45 .. 75 Hz*

45 .. 75 Hz*

60 .. 75 Hz

60 Hz

50 .. 75 Hz

50 Hz

60 Hz

45 .. 60 Hz

50 Hz

45 .. 50 Hz

GSP60182ZL

GSP60182ZL

45 .. 75 Hz*

45 .. 75 Hz*

60 .. 75 Hz

60 Hz

50 .. 75 Hz

50 Hz

60 Hz

45 .. 60 Hz

50 Hz

45 .. 50 Hz

GSP60235ZL

GSP60235ZL

45 .. 75 Hz*

45 .. 75 Hz*

60 .. 75 Hz

60 Hz

50 .. 75 Hz

50 Hz

60 Hz

45 .. 60 Hz

50 Hz

45 .. 50 Hz

GSP80295ZL

GSP80295ZL

50 Hz

50 Hz

60 Hz

60 Hz

GSP80385ZL

GSP80385ZL

50 Hz

50 Hz

60 Hz

60 Hz

GSP80421ZL

GSP80421ZL

50 Hz

50 Hz

60 Hz

60 Hz

GSP80485ZL

GSP80485ZL

50 Hz

50 Hz

60 Hz

60 Hz