Operation | 32
Description of Components
Table 5: Humidifier Components
Component Function of Component
Blowerpack
Disperses steam generated by the humidifier directly into a space being
humidified. Consists of a steam distributor, fan, power supply, and
mounting bracket.
Condensate Return
Provides a connection to return condensate to humidifier.
Control Terminal
Strip
Terminal strip for connecting external controls to humidifier and
interfacing with other equipment.
Cylinder Plug
Power connectors to electrodes in cylinder.
Cylinder
Holds electrodes in water. Current between electrodes generates heat
used to generate steam.
Drain Canal
Combines cylinder drain water and fill cup overflow into a single drain
outlet.
Drain Valve
Drains water from humidifier.
Control Board
Controls all functions of the humidifier’s operation and provides input
and output connections to humidifier components.
Fill Cup
Provides an air gap for backflow prevention.
Fill Valve
Controls flow of water into humidifier.
High Voltage
Terminal Block
Primary power connection from remote disconnect to humidifier.
High Water sensor
Plug
Used to detect max water level in cylinder.
On/Off/Drain Switch
Turns power on/off to humidifier controller and drains the cylinder for
servicing. Note: Turn off humidifier disconnect to shut off primary power
to the humidifier.
Power Relay
Turns on/off power to cylinder electrodes based on a signal from the
humidifier’s controller (mounted on control board).
Steam Outlet:
Connect to steam line with steam hose (shown with steam hose to
blower pack).
Transformer:
Steps primary voltage down to 24 VAC for the controller and internal
components such as the fill valve and drain valve.
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