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39
Operational Guidelines
This section describes the conditions and indications you should expect to find in a normally operating humidifier.
Monitoring Stat Demand:
Indicate the demand for humidity in relation with the range control of the humidistat. 0% indicates
that the humidity requirement has been exceeded. 100% indicates that the humidistat is calling for full humidifier output. In
general, a reading of around 50% indicates that the set point has been met.
Monitoring Current:
While the unit is filling, the current should increase. As the current approaches the maximum rating of
the unit, it increases more slowly, especially in higher capacity units. With the tank on, and the fill and drain circuits idle, the
current should fall slowly. When the unit is draining, the current should decrease at a moderate rate.
Automatic Drain Operation:
The microcontroller will energize the drain valve at the beginning of the fill cycle to reduce the
conductivity and mineral build-up in the tank. It will vary in drain duration to adjust for changes in water quality, demand
history, and steam output.
Manual Drain Mode:
If the manual drain button is pushed while the tank circuit is energized, the fill valve will also open to
temper the drain water. If the tank is off, only the drain valve will open.