Operating instructions

33
Mechanical and electrical design
54
0305
Water level controls
One double-level pressure switch is used to
control the correct water levels during various
cycles of the washing program.
A second level control is installed on the machines
to prevent the machine from going into extraction
until a sufficient amount of water has been
drained.
A third level control is instaled to prevent flushing
down the soap supply box before a low level is
reached.
Adjustment
All pressure switches are factory-calibrated to
meet specific requirements. The trip level for any
one pressure switch can be changed only within
narrow limits because each trip range requires a
different set of springs.
Water level
As a guide for checking the level control for proper
functioning, the low level should be at the bottom
of the door glass, and the high level approximately
three inches above it.
Fig.
54