24
9 Drain
9.1 Drain valve
The water pressure in the cold water intake is used for closing the drain valve. There is a hose (1)
connected between the water intake and the control valve (2). When the control valve is activated
it opens and lets water into the supply line (3) which is connected to the drain valve. The water
presses up a rubber membrane (4) and a plunger (5) with a pressure plate (6) which closes the
valve’s rubber membrane (7).
When the control valve shuts off water pressure to the drain valve the springs (8) pull back the
plunger. The return water passes the control valve and runs out into the drain via the return hose (9).
3
5
6
4
7
8
1
2
9
fig.7500
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Summary of Contents for W555H
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