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Nortec RS Steam Humidifier
Nortec RS
2596995_0_EN_1905
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Nortec RS Steam Humidifier
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General Description
The Nortec RS humidifier is an atmospheric steam generator, which operates on the resistance heat-
ing principle – heat is generated by the resistive heating elements immersed in water. The Nortec RS
humidifier is designed for direct room humidification using a blower pack, or humidification through the
ducts in an air handling unit using a steam distributor. It is suitable for a variety of humidification applica-
tions including commercial offices, hospitals, computer rooms, museums, clean rooms, schools, printing
plants, and other applications where reliability is required.
The Nortec RS humidifier comes in three different housing sizes – small, medium and large depend-
ing on the steam output. The small model has capacities ranging from 10 lb/h (4.5 kg/h) to 20 lb/h
(9.1 kg/h), the medium model from 30 lb/h (13.6 kg/h) to 90 lb/h (40.8 kg/h), and the large model from
90 lb/h (40.8 kg/h) to 180 lb/h (81.6 kg/h). The small and medium size models can be ordered with a
built-on blower pack (refer to
).
list
the specifications for each model.
The large model has two steam cylinders instead of one. The construction is similar to the single cyl-
inder units except that it has two fill and drain connections, two driver boards, and one primary voltage
terminal and two low voltage terminal strips – one for each steam cylinder (designated "A" and "B"). The
separate driver boards and low voltage terminal strips allow the large model to handle two separate sets
of control signals. This gives the large Nortec RS humidifier the flexibility to operate in parallel mode or
series mode for connecting multiple humidifiers together for the same zone.
In parallel mode, one set of control signals is wired to the driver board and low voltage terminal strip for
steam cylinder "A", which controls the humidity in both zones. Both steam cylinders respond equally to
the demand for humidity.
In series mode, one set of control signals is wired to the driver board and low voltage terminal strip for
steam cylinder "A", which control the humidity in both zones. In this mode, both steam cylinders operate
in a staged fashion – steam cylinder "A" can be configured to handle output from 0-50% of demand, and
cylinder "B" from 50-100% of demand.
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Figure 1: Nortec RS Humidifier Models
1 RS 10 - RS 20 – small model with single steam cylinder
2 RS 10 - RS 20 – small model with single steam cylinder
and built-on blower pack
3 RS 30 - RS 90 – medium model with single steam cylinder
4 RS 30 - RS 90 – medium model with single steam cylinder
and built-on blower pack
5 RS 90 - RS 180 – large model with dual steam cylinders
6 Steam cylinder "A", large model
7 Steam cylinder "B", large model
