8
Nortec RS Steam Humidifier
2596995_0_EN_1905
Nortec RS
The Nortec RS humidifier housing contains two cabinets – the plumbing cabinet (on the left) and the
controls cabinet (on the right) – refer to
summarizes the functions of the main
components in these two cabinets.
Table 4: Nortec RS Humidifier Component Functions
Component
Function
Plumbing cabinet
Steam cylinder
Water reservoir in which boiling takes place. It houses a set of resistive heating ele-
ments that are used to boil the water. It has a steam outlet at the top, and a water
inlet/outlet at the bottom.
Cable harness with plug
Cable ahrness with plug that feeds electric current to the resistive heating elements
housed in the steam cylinder.
Drain canal
Combined drain outlet for discharge from the steam cylinder and fresh water for drain
water cooling.
Drain pump
Drains water out of the steam cylinder.
Fill cup
Provides a gravity feed means to fill the steam cylinder through the drain pump. A
built-in air gap prevents backflow.
Fill valve
Controls the flow of feed water into the fill cup.
Fill cup extension (optional)
Optional kit for extending the fill cup so the humidifier can accommodate backpressure
up to 10 in H
2
O (2.49 kPa).
Controls cabinet
High voltage terminal block
Primary power connection from the external disconnect switch to the humidifier.
Contactor
Activates/deactivates power to the resistive heating elements in the steam cylinder.
Driver board
Provides input and output connections to the humidifier components.
Integrated control board
Controls all functions of the humidifier, and provides a user interface through the inte-
grated touchscreen display. It also permits connection to multiple humidifiers, as well
as to the BMS. An on-board USB port also permits exchange of data.
Touchscreen display
User interface to monitor and control the humidifier.
On/Off switch
Allows the user to turn the humidifier On and Off.
Low voltage terminal strip
Terminal strip for connecting control signal inputs to the humidifier.
Remote fault indication PCB
Optional printed circuit board with dry contacts to connect remote status displays for
"Unit On", "Steam", "Error" and "Service".
Accessory relay PCB (not
shown)
Optional printed circuit board with dry contacts to enable/disable other accessories
such as fans and supply water flushing valves.
Transformer
Steps down primary voltage to 24 VAC to power the on-board low voltage electronics.