Cooling System - Atlas Copco ga55+ Instruction Book

Air pressure forces the oil from air receiver/oil separator (AR) through oil filter (OF) and oil stop valve
(Vs)to compressor element (E).
Bypass valve (BV) starts opening the supply from cooler (Co) when the oil temperature has increased to
theset point. At approx. 15 °C above the set point, all the oil flows through the oil cooler.
Oil stop valve (Vs) prevents the compressor element from flooding with oil when the compressor is
stopped.The valve is opened by element outlet pressure when the compressor is started.

2.4 Cooling system

Flow diagram
22
Instruction book
9096 3313 00