2-1-2 Characteristics of major parts
Feed-N.O.S. valve (safety shut-off)
- Use: feed water shut-off and safety shut-off.
- Operating principle: By closing/opening the water supply when sensing the full water level signal
by the water level sensor and overflow sensor, the feed water is shut off in two
steps.
Water level sensor
- Use: Monitors the water level in the purified water tank.
- Operating principle: By sensing the water level in the purified water tank in two steps, the water
purifying operation is controlled through the feed water supply valve.
Overflow Sensor
- Use: Monitors the overflow in the purified water tank.
- Operating principle: When the purified water tank is full, the N.O.S. valve is adjusted to stop the
water purifying operation.
Bi-Metal (Manual type)
- Use: Prevents overheating.
- Operating principle: When overheated, the power to the heater is automatically cut off by two metal
plates with different expansion rates.
Specifications of major parts
Parts name Standard ratings/specifications Remark
SMPS
Primary side: AC 220V / 50Hz
Secondary side: DC 24V, 0.33A
DC 5V, 0.4A
Fuse AC 250V / 10A
Compressor 142W, AC 220V / 50Hz
Feed Valve
Volts: DC 24V
AMPS: 210mA
N.O.S Valve
Volts: DC 24V
AMPS: 210mA
Bi-Metal AC 220V, OFF: 88°C, ON: Manual reset
Possible manual reset
temperature: 84°C or
lower
Heater 430W, AC 220V
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