Nortec GH Series Instaliation, User & Maintenance Manual page 14

Figure #17
. _____ Clamp To Steam Distributor
..--- Or Remote Blower Pack
Field Supplied Insulated
Hard Copper Pipe
See Section On
~
\
Condensate Return Une
i (
Or Flexible Steam Hose
Available From Factory
Trap"
~===~===1
Figure #18
r - - - - - - - - u - - r -___
---==:::::::::~
Min.
10
Degree Slope
3
1 min.
~
Min. 12"
Trap '-
U \
See Section On
~
\
Condensate Return Line
~======:::;J
Figure #19
I
~
I
N .
Condensate To Drain
- 11 -
2. NORTEC steam supply hose or field-supplied
piping should be sloped downwards from the
steam distributors to the humidifier. Slope
should be at least 2" in 1211 to promote
condensate runback. See Figure #18. If this
slope is not possible, condensate must be
removed before the distributor. See Figure
#19.
3. Minimize the length of steam line and keep it
as straight as possible, minimizing bends.
Also, avoid using 90° elbows. Wherever
possible, use long radius turns (using tube
bender on oversized copper or pairs of 45°
elbows). This will reduce the condensate
generated by heat loss. This will also reduce
the back pressure and avoid the need to install
an extended water trap.
4. Ensure that the steam hose does not kink or
sag. The steam hose becomes more flexible
when hot. The hose should be supported to
prevent water traps. Only use steam hose for
connections or steam line runs of 5 feet or
less. See Figure #20.
Figure #20
\
i
~
Proper Slope
I
r
Genije Sweeping Turns
5. To ensure odor-free steam, always use
NORTEC steam hose. Check steam hose
and hose couplings periodically for cracks,
breaks, kinks. Replace as required. DO NOT
substitute hose. NORTEC is not responsible
for health effects or damage from substitute
hose .
6. Steam lines require 1-5/8
11
0.0. (nominal
1-1/2") copper pipe. For steam runs longer
than 40 feet use insulated nominal
211
copper
to ensure the draining of condensate.
7. Do not use steel or plastic pipe for steam
distribution or hose other than NORTEC
supplied. Substitution will void warranty.