Nortec NH Series - Manual (Page 7)

Introduction | 4
Description of Components
Table 1: Humidifier Components
Component Function of Component
Auxiliary Drain
Switch Drains water from boiling tank by activating drain pump. Note that initiating a
drain in this manner will not induct Drain Water Cooling.
Boiling Tank
Holds resistive elements submerged in water. Current traveling along the
internal element wire generates heat which is used to generate steam.
Condensate
Return
Provides a connection to return condensate to humidifier.
Contactor Turns On/Off power to boiling tank elements.
Drain Pump Drains water from boiling tank.
Drain Water
Cooling Valve Adds cold supply water to water draining from boiling tank to temper drain
water to a maximum of 140ºF (60ºC).
Driver Board 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 Voltage
Transformer Steps primary voltage down to 24 VAC for the controller and internal
components such as the fill valve and drain pump.
On/Off Switch
Turns power On/Off to humidifier controller. Note: Turn off humidifier
disconnect to shut off primary power to the humidifier.
Remote Relay
Board (option) Provides a terminal strip to dry contacts which open/close to indicate the
humidifier is on, humidifying, needs service, or is in a fault condition.
Scale Tank
Scale created inside the boiling tank (on the elements and the side walls)
breaks off and gravitates to the scale tank for easy disposal.
Scale Tank
Drain Spigot Manually activated drain spigot used to empty the scale tank of water before
removing and emptying tank of collected scale.
Solid State
Relay (optional)
Solid State Relays offer shorter cycles when turning the resistive elements On
and Off. Recommended for humidification applications requiring high
accuracy.
Steam Outlet Connect to steam line with steam hose.
User Interface
Controls all functions of the humidifier operation and provides user ability to
modify configuration of the humidifier.