WM 200
3 Motor
The motor is a 4-pole 3-phase asynchronous motor, powered by a
variable-voltage, variable-frequency supply. It incorporates a thermal
cutout for overload protection.
4 Outlet pump
The outlet pump is combined with a needle trap and strainer that can be
cleaned by the user.
5 Inlet valve
The inlet valve provides 3-way control of the water to direct it to the
appropriate inlets for 1) prewash and rinses, 2) main wash and 3) fabric
conditioner. A fourth inlet can be fitted for machines intended for use with
hot water supplies.
6 Heater element
The heater elements are of 1200 W and 1800 W rating respectively.
depends on the power supply arrangement (voltage and number of
phases). See Power Supply, below. Machines with heater contactor have
element with fuse.
7 Thermistor
The thermistor senses and controls the water temperature, which can be
between 0°C and 90°C, 32°F and 194°F. The heater is disconnected if the
thermistor is short- circuited or disconnected from the circuit board. See
the fault indication key (above).
The thermistor should have a resistance of between 60 kohm and 40 kohm
at a temperature of 20-30°C, 68-86°F.
8 Level switch
The level switch senses 3 water levels: Return to normal water level, P1
Normal level, P2
High level, P3
Overfilled, P4
If the overfill level is detected, the level switch starts the outlet pump. If the
water level has not dropped within 60 seconds, the program will be
interrupted. (See fault indications, above). If the overfilling was only
temporary, the program will continue as normal.
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