Quincy Compressor 50093-103 - Manual (Page 40)

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Air/Fluid Separator Differential Gauge - Indicates
pressure differential across the air/fluid separator element.
Used to determine separator element change intervals.
Fluid Level Indicator - The fluid level indicator is a sight
gauge located on the air/fluid reservoir and continually
monitors the fluid level in the air/fluid reservoir.
Vacuum Pump Fluid Filter Maintenance Indicator -
Indicates when the fluid filter element should be replaced.
When the white indicator piston moves from the green
zone into the red zone, the fluid filter should be serviced.
High Air temperature Safety Switch - A high air
temperature (HAT) switch is standard on the QSVI units.
This switch protects the unit by sensing unusually high
temperatures and shutting the unit down.
! WARNING !
Never remove, bypass or tamper with this safety
HAT switch. Failure to provide this safety
feature could cause death, serious injury and/or
property damage. If the vacuum pump is
shutting down due to high discharge
temperature, contact a qualified service
technician immediately.