Atlas Copco GX 7 Instruction Book page 23

Instruction book
Ref.
KY
KD
T1
KMD
XM1
Reference
TSH
See also the
Electrical diagrams
section
SV
2920 7054 00
Designation
Star contactor
Delta contactor
Transformer
Dryer relay (only on FF versions - see (1) on figure)
Connection terminals (only available on multi-voltage versions - see (2) on figure)
Safety valve on the compressor and on the vessel
Designation
Temperature shut-down
switch
Safety valve
Function
To shut down the compressor if the temperature at the
outlet of the compressor element is too high.
To protect the air outlet system if the outlet pressure
exceeds the opening pressure of the valve.
21