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B. Design and function
B7
Operating instructions
Cooling
(see Figure B.3)
While a pump is running the „motor cooling" solenoid
valve (1) is open. This causes the cooling water to flow
via the pressure regulator (2) through the motors' cooling
windings. The cooling water is then fed back into the
storage tank. The cooling water pressure is set at the
pressure regulator (2).
Frost protection
(see Figure B.3)
The high-pressure module must be installed in a room
protected against frost. The supply hoses to the washing
facility and the washing facility itself are protected against
frost damage by a device. Compressed air is fed to the
high-pressure circuits through the „frost protection inlet"
solenoid valve (Y1) .
The compressed air supply is installed on-site.
HD 9000 E USA
5.961-163 A 2006087 (09/03)
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