13
Operation
Nortec RS
2596995_0_EN_1905
2.2
Sequence of Operation
The following is a general sequence of operation – the actual sequence may vary depending upon op-
erating conditions and user-configurable parameters. Refer to
1. When the humidifier receives a valid humidity demand signal, the level unit of the Nortec RS performs
a level test.
2. If the water level in the steam cylinder is below the operation level, the fill valve opens and fills the
steam cylinder via the fill cup and the fill hose connected to the coupling sleeve at the bottom of the
cylinder to the operation level. The humidifier displays the status message “Filling”.
3. As soon as the operation level is reached, the fill valve closes, the main contactor closes and directs
power to the resistive heating elements in the steam cylinder(s). The LED lights green and steam
is produced after a short delay.
4. As water level in the steam cylinder drops due to evaporation to a certain level, the fill valve opens
and refills the water in the steam cylinder to the operating level again.
5. As the humidifier continues to operate:
a. the water level in the steam cylinder drops due to evaporation. If the level drops to a certain low
level, the fill valve opens and refills the water in the steam cylinder to the operating level again.
b. the concentration of minerals in the water of the steam cylinder increases due to evaporation.
To ensure that this concentration does not exceed a level unsuitable for operation, a certain
amount of water is flushed out of the steam cylinder from time to time and replaced by fresh
water (refer to
6. The operating sequence loops back to
step 2
and continues steam production as long as there is a
valid humidity demand signal.
