The drain line should not end in a sink used frequently by personnel, or where plumbing codes prohibit it. Route to a floor drain or equivalent for safety reasons. Internal drain water tempering will ensure a maximum of 140ºF (60ºC) exiting water temperature.
Never install PVC piping as a drain line material. Always use material suitable for
Keep drain lines as short as possible. Keep drain lines sloped down, not level and not up since low spots in drain lines will accumulate sediment and cause backup. The drain line should be
O.D. or larger. Consult local codes.
When the drain pump is activated, the tank drains at a rate of
AUX DRAIN PORT
An auxiliary drain port is also provided on the side of the humidifier. It can be used to manually drain the unit, if required. The unit is shipped with this connection plugged. It is recommended to install a shut off valve on this line (see Figure #11).
The auxiliary drain port is used with the standard freeze protection. Install a shut off valve on this line and pipe to the drain funnel (see Figure #11). The manual shut off valve must always be in the open position when the unit is operating but can be closed for servicing of the unit.
STEAM LINES AND CONDENSATE LINE
Steam hoses and clamps are provided with the GS humidifier for connection to the steam lines. Refer to Figure #12 for connection details.
For steam line installation between the humidifier and distribution system, consult the distribution system installation manual. Steam Distributor Installation Manual - Form
The GS series of
Figure #12
Steam Line Connection
Steam Line
Snap on Insulation
Hose cuffs & 
clamps supplied
GS Outdoor Installation
GS Outdoor units are CSA certified for outdoor installation and come complete with exhaust venting and internal ventilation (cooling) for the electronics. Heaters for freeze protection are standard with outdoor units.
All installations must conform with local building codes or, in the absence of local codes, with the National Fuel Gas Code ANSI Z223.1 in the United States or CAN/CGA B149 Installation codes in Canada. NORTEC can not accept responsibility for installation code violations.
MOUNTING
Typical rooftop installations are shown in Figure
#13 & #14.
The GS Outdoor unit comes standard with cutouts in the base to allow for lifting by a forklift. When lifting by this method, ensure that the forks extend across the entire base to prevent tipping or damage to the unit.
The enclosure also comes complete with four (4) removable lifting lugs fastened to the base. All four lugs must be utilized if moving the unit in this manner. Protect the cabinet from damage from the lifting cables/chains during lifting. The lifting lugs should be removed from the base once the unit has been correctly positioned on the curb mounting.
See Figure #15 for clearance details.
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