1.HUMIDIFIER INSTALLATION
A.LOCATION AND MOUNTING
(1)NH Outdoor Series humidifiers are UL listed for outdoor installation and come complete with internal cooling for the electronics. An internal heater is standard and ensures the enclosure remains at proper operating temperatures. Additionally, a freeze protection system is available for use in cold climates.
(2)The NH Outdoor Series humidifiers can be mounted on an air handler, on an appropriately sized curb, or on a wall or vertical surface. The clearance dimensions shown in this guide are for reference only and are the minimum required for maintenance of the humidifier. Local and National Codes should be consulted prior to final location and installation of the humidifier. NORTEC cannot accept responsibility for installation code violations. The minimum required maintenance clearances are shown in Figure 1.
(3)Humidifiers typically operate in the cold winter months. As a result they should be located where it is safe and convenient for maintenance personnel to service the unit. This is essential as it may be less desirable to service the unit during inclement weather. The warranty does NOT cover damage resulting to humidifier as a result of neglect or freezing. NH Outdoor series should NOT be installed on a rooftop in severe climates or where temperatures reach below 14°F
(4)It is also important to consider the length and location of the humidifier steam line that will result from the installation. Consult section
B.AIR HANDLER MOUNTING
(1)The NH outdoor series features provisions for hanging on brackets (supplied). This allows the unit to be mounted directly to a vertical wall on an air handler unit. This installation is advantageous since the steam piping is shorter, and hence the condensate losses and backpressure are minimized. Typical air handler installations are shown in Figure 2. Additionally, observe the following precautions when installing the humidifier:
(a)Ensure that the surface selected to mount the humidifier is structurally sound and capable of supporting the entire weight of the humidifier when in operation.
(b)For minimum required maintenance clearances see Figure 1.
(c)Wall mounting bracket provided should be securely attached horizontally with open edge upwards, using
(d)Using proper lifting techniques, lift the humidifier onto the brackets to mount it. Several people may be required to lift the unit.
(e)Ensure that both the bracket and humidifier are mounted level.
(f)Do not store or use gasoline or other flammable vapors and liquids in the vicinity of the humidifier.
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