Inlet Valve For W185; Clean Out - Wascom EMERALD W75ES Operating & Maintenance Manual

52

Inlet valve for W185

Fig.
The water inlets have brass bodies with larger
cross section of the outlet in order to achieve a
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shorter filling time for the machine.
Construction
The valve housing is made of pressed brass. The
spring-loaded plunger is made of stainless steel
and located at its lower end is a rubber gasket for
the pilot valve.
Operation
The valve is automatically operated by means of
a rubber diaphragm and a pilot valve in exactly
the same way as the supply injector valve.
NOTE: To strip, clean, re-assemble and
troubleshoot the inlet valve, follow the
instructions outlined for the supply injector
valve.

Clean out

At water temperatures of more than 60°C/140°F,
the lime deposits are heavily increased. This can
cause function problems due to blocking up the
equalizing orifice of the valve.
Fig.
The fault can be eliminated by cleaning the
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equalizing orifice (marked A).
Fig.
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If there are much deposits the orifice can be
changed from 0.5 mm to 0.8 mm. The screwhead
of the orifice is marked with 1 ring for the size of
0.5 mm and 2 rings for the size of 0.8 mm.
Clean the orifice as follows:
1. Shut off the main supply.
2. Unscrew the orifice.
Fig.
3. Clean the hole in the orifice carefully with a
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pin or similar not thicker than 0.5 resp. 0.8
mm.
4. Mount the orifice, be careful with sealing and
tighten.
5. Open the main supply.
Mechanical and electrical design
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