Nortec Industries GS Series - Manual (Page 20)

· 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 with-standing
140ºF (60ºC).
· 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 1-1.5"
O.D. or larger. Consult local codes.
· When the drain pump is activated, the tank drains
at a rate of 7-8 gal/min (18-20 l/min).
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 #XX-231 and SAM-e
Short Absorption Manifold - Form #XX-249.
· The GS series of Gas-Steam humidifiers can
develop steam pressures up to 12”w.c. to
overcome duct and steam line pressures. An
enclosed trap on the drain line prevents steam
from going to drain. Duct pressures above 12”
will cause steam to exits through the drain line.
Consult factory.
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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Snap on Insulation
Steam Line
Hose cuffs &
clamps supplied
Figure #12
Steam Line Connection