DriSteem Vapor-logic 4 User Manual

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Operation
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Figure 57-1:
Water level control for electrode steam humidifier
OM-7580
Fill cup
Overflow
Overflow to drain
Cylinder drain
Water
Electrodes
High water sensor
Water fill line connection
(under cabinet)
Electrode steam humidifiers
In electrode steam humidifiers (see Figure 57-1), steam output
is directly related to the resistance of the water in the steam
cylinder and, therefore, the conductivity of the water between the
electrodes.
Recommended supply water conductivity for XT humidifiers is
125 to 1250 S/cm.
Higher water levels cover more electrode surface and result in more
steam; lower water levels cover less electrode surface and result in
less steam. Since water conductivity and water level both correlate
to steam output, DRI-STEEM electrode humidifiers employ an
algorithm that monitors conductivity and manages drain and fill
events to optimize humidifier performance and provide proper
steam output.
As the water in the cylinder boils into steam, the concentration
of conductive ions increases until it reaches a threshold that
triggers a drain and fill event. This rids the cylinder of highly
conductive water and replaces it with less conductive fill water.
The more conductive the fill water and the higher the demand, the
more quickly the threshold is reached, and the more frequently
the cylinder automatically drains and fills to stay within the
parameters for proper steam output.
To prevent overfilling of the cylinder, filling stops if the water level
reaches the high water sensor.
Supply water
Electrode steam humidifiers use tap or softened
supply water. Demineralized, deionized, and
reverse-osmosis water are not conductive enough
for electrode steam humidifiers.

DriSteem Vapor-logic 4 Specifications

General

Brand	DriSteem
Model	Vapor-logic 4
Category	Controller
Language	English