Waterous 500-100-P, Руководство по эксплуатации

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Waterous Arizona Operations 500-100 & 120-P Operations Rev 1
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Extended compressed air only operations necessitate connection of an external
water source to the pump inlet and closing of the tank to pump valve far proper
compressor cooling. In this case, cooling water will flow into the booster tank at 10-
20 GPM, eventually overflowing the tank.
C. Shut-Down Procedure

Close air valve(s)

Turn off Foam proportioner

Flow clear water through discharge hose(s) until no bubbles are present

Close discharge valve(s)

Move Auto-sync controls to: Electric = UNLOAD

Shut system down
After the system is shut down, the compressor system will vent itself, creating an audible hiss
as compressed air is evacuated from the pressure vessel/sump.
WARNINGS

Compressed air can be dangerous. Read and understand the operating
instructions for the Waterous compressed air foam unit and individual components
prior to operating.

DO NOT use the compressed air foam unit as an air source for SCBA or any
breathing air supply.

Discharge outlets that are capped, hose lines that are valved and charged and the
air compressor sump may contain compressed air. Relieve all pressure BEFORE
attempting to remove any caps, fittings, and nozzles or to perform maintenance to
prevent serious personal injury.

Nozzle reaction force is significantly increased at the time the nozzle valve is
opened in compressed air foam operations. OPEN CAFS NOZZLES SLOWLY!

Operating the compressed air foam unit with water and compressed air pumped
through a discharge without foam concentrate will create a potentially dangerous
condition known as "Slug Flow"; where unmixed pockets of water and air are
passed through the nozzle, causing erratic nozzle reaction.

For compressed air foam operations, use only fire hose that is rated at 200 PSI or
higher working pressure.

The unit operator should have a thorough understanding of "Boyle's Law" (The
law of compressed gases) prior to operating the compressed air foam unit.