Nortec MH Series - Manual (Page 20)

16 | MH Series
Mounting and Installation
Qualification of personnel
All mounting and installation work must be carried out only by well qualified personnel
authorized by the owner. It is the owner’s responsibility to verify proper qualification of the
personnel.
Safety
The electrical installation requires the removal of the control unit cover. Please note the
following
:
Danger of electrical shock! You may get in touch with live parts when the control unit is open. The control
unit must be connected to the mains only after all mounting and installation work has been completed and
the control unit cover has been properly secured.
The electronic components inside the control unit are very sensitive to electrostatic discharge. When the unit is
open for installation work, appropriate measures must be taken to protect these components against damage
caused by electrostatic discharge (ESD protection).
Unit Mounting
Usually, the design and dimensioning of the ventilation duct/air handler as well as the location
of the Nortec MH inside the duct are determined, recorded and specified when planning the
entire system. Prior to installation, however, make sure the following criteria have been taken
into consideration:
For operation with fully demineralised water: Fully demineralised water is aggressive! For this
reason, all components located close to the humidification unit (duct/ air handler, fastening
material, drain pipe, etc.) must be made of corrosion-proof steel or plastic.
For installation and maintenance of the humidification unit a viewing window and a sufficiently
large maintenance door must be available in the duct/ air handler.
In the area of the humidification unit the ventilation duct/ air handler must be waterproof.
Important! An air filter must be installed at the air inlet of the humidification unit. The filter
must meet the quality standards (MERV 11 (Note WMCI specifies EU7 (f7) which is equivalent
to MERV 11) ASHRAE 52.2 or better.
In case of low ambient temperature, the duct must be externally insulated to prevent the moist
air from condensing inside the duct.