OPERATION
BLAZER 980073 09/16/02
3-6
The vacuum exhaust heat exchanger utilizes
vacuum pump exhaust as it is leaves the vacuum
pump. The warm air flows through a radiator-type
heat exchanger prior to discharging out to the
atmosphere. The water is heated as it flows through
this heat exchanger. From the vacuum exhaust heat
exchanger, the warm water flows back to the water
box.
When the operator opens the tool valve, the
water flows through the engine exhaust heat
exchanger where it is heated by extremely hot
engine exhaust.
The primary heat exchanger is an engine exhaust
chamber containing a stainless steel heating coil.
Water flows through the coil and is heated by the
engine exhaust as it leaves the engine. The water,
still under pressure and hot, is piped to the outlet
manifold where chemical is injected, and then the
mixture flows to the cleaning tool.
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