63
3.6 CPR Crankcase Pressure
Regulation Valve
Cooling Circuit
(g)
Regulate maximum suction
pressu
re to 2, 2barg (31.9psi
g) by
turni
ng CPR setting screw;
1 turn
clockwis
e to increase pressure
value of 0.17bar (2.5psi) or in
the
opposit
e direction to decrea
se it
of same quant
ity.
CAUTION
!
Inside under
prot
ection cap remove looking nut to
operate regulating screw.
CPR Valve Replacement
(a)
Open unit door.
(b)
Pump down unit 3.2.1 Section.
(c)
Ensure that liquid receiver
discharge and
compress
ors
suction valves are closed
.
(d)
Disconnect unit from electrical
supplies.
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