Sullair V-200TS, Operator'S Manual And Parts List

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Section 6
MAINTENANCE
29
6.1 SPIRAL VALVE PRESSURE REGULATOR
See Figure 6-1. This downstream pressure regula-
tor protects the spiral valve actuator diaphragm
from over pressurization and ensures that ade-
quate pressure is supplied for proper operation.
To set the regulator, slowly decrease demand until
the compressor runs at minimum speed. As a result
the spiral valve solenoid becomes de-energized,
feeding air pressure to open the spiral valve.
Unlock and turn the adjustment screw located on
the bottom of the regulator valve to set the desired
pressure. Once 38-40 psig is reached on the down-
stream gauge, lock the adjustment screw.
Figure 6-1 Pressure Regulator Adjustment