HydraMaster Steamatic 8800 TMU, Руководство пользователя

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6-1 - Water and Chemical Systems
Steamatic 8800 TMU
6 - Water and Chemical
System
This section describes the Steamatic 8800 TMU’s water and chemical systems, and
includes the exhaust subsystem.
Parts of the text are also included in the section’s annotated illustrations which are
referenced in the following paragraphs (see figure 6-1 – figure 6-6).
The process starts when fresh water is brought through the front of the truckmount 1.
into the water box, as indicated in figure 6-1. The level of water in the box is
maintained by the use of a float valve. The water is then gravity-fed to the pump
where it is pressurized.
Next, the pressurized water enters the bypass valve. This valve allows manual 2.
adjustment of the pressure level. When the valve at the wand is closed, all the water
in the system is recirculated to the water box. When solution is being used at the
wand, the necessary amount of high pressure water passes through the bypass
valve and to the heat exchanger (see figure 6-1).
In the tube and shell heat exchanger, the temperature is raised. The heat necessary 3.
to do this is provided by the engine coolant. Heated water then travels to the blower
heat exchanger. In this heat exchanger, the temperature of the water is raised once
again. The heat necessary to do this is provided by both the engine and blower
exhausts (see figure 6-6
). The heated water finally travels to the high pressure
manifold (see figure 6-1).
The high pressure manifold houses both the temperature sensor for the
temperature gauge and the high temperature shutdown switch. This innovative,
revolutionary system does not require a recirculation orifice or filter to maintain
temperature within the heating system.
When water is not flowing through the cleaning tool, the water within the heat exchange
system stops circulating completely.