13 | Installation
Plumbing
Figure 7: Water Supply and Drain Connection
All water supply and drain line connections should be installed in accordance with local
plumbing codes.
Supply water should at 30 to 80 PSIG and be between 150-1200 Microsiemens (Hardness
10-20 GPG). Water softener may be used if conductivity remains in recommended range.
Install water shut off valve and union before humidifier to facilitate servicing.
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.
Insure drain line is adequately sized to provide free and easy draining and that an air gap is
installed as shown. A restricted drain can cause cylinder water to over concentrate and
result in poor operation or result in water backing up at the air gap.
Note:
Drain Water is very hot, do not drain to public sink
Supply cold potable water, 30 - 80 PSIG, 150 – 1200 microsiemens
Do not use plastic pipe for drain or condensate lines.
Min. 7/8 in. OD drain line.
Keep as short as possible.
Slope down to floor
drain or main drain.
Increase size if combining
multiple drains as in double unit.
1.2 in. (30 mm). OD
un-threaded outlet
with factory supplied
bent hose and clamp.
Air gap required.
2 1/2 in. to 7/8 in. copper
reducer is ideal.
(NORTEC option P/N 2522172)
Hose must not touch
the bottom of the funnel.
Always install a water
shut-off valve.
1/2 in. NPT
Use union to connect
supply pipe to unit.
*Pipe and water shut-off valve not supplied by NORTEC.
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