Nortec NH Series - Manual (Page 9)

Introduction | 6
Outdoor Model
The NHRS is available for outdoor use, providing a weatherproof enclosure that allows for
installation on rooftops in relatively extreme climates. Refer to the installation addendum that
is provided with the NHRS Outdoor model to ensure proper installation (P/N 2531550).
Options and Accessories
Nortec provides a complete line of options and accessories for every humidification application.
The following options and accessories are available and may have been delivered with your
NHRS humidifier. Refer to the installation instructions that came with the accessories for
proper installation and operation.
Table 2: Options and Accessories
Component Function of Component
Drain Water
Cooler, Low
Flow
Reduces drain rate from the humidifier by restricting the boiling tank drain
outlet diameter, as well as providing a lower-flow drain water cooling valve.
Dual Demand
Controller
Consists of a universal math module that compares two demand input signals
and outputs the lowest of the two to the humidifier. This option is useful
where a high limit modulating demand channel is desired (along with a
modulating demand channel humidistat), since the humidifier only allows one
modulating input. See P/N 2558776.
Keep Warm
(Outdoor
standard) Maintains water temperature in boiling tank at 160ºF (70ºC) for quick
response of the unit to a call for humidity while minimizing health concerns
associated with standing water. See P/N 1504561.
Nortec
Online/LINKS2
Provides monitoring and control, allowing humidifier to communicate with a
Building Management System (BMS). Controller is factory installed and
located internally to the humidifier. At the time of ordering, customer must
specify the desired protocol: BACnet/IP, BACnet/MSTP, Johnson N2, or
LonWorks.
Nortec Online provides an internet-based monitoring and control system for
the humidifier.
Remote Relay
Board
Provides four built-in status relays for remote monitoring capabilities: steam
production, unit fault, maintenance/service, and unit power. Relays can
interface with a Building Management System (BMS). If one of the above
conditions is met, a relay will close which will complete a connection. A signal
will be provided to a wire terminal. See P/N 1508069.
Scale
Management
System
Provides a separate reservoir underneath boiling tank for scale collection.
Minerals removed from the boiling tank water during steam production will
collect in the scale reservoir rather than in the tank. When minor
maintenance is needed, the scale tank is easily removed and emptied.
Solid State
Relays Allow for rapid response upon call for humidity, adapting instantly to humidity
demand, allowing for tight control of the in-space humidity.