Nortec GS - Water Connection Requirements

38 Installation
2583703_EN_1608 Nortec GS
5.6.4 Water Connection Requirements
Water and drain connections must meet the following requirements:
– All water supply and drain connections must be installed to local plumbing codes.
– For ease of maintenance, a water shutoff valve and union tting must be installed in the supply line
before the humidier.
– If a water lter is used (optional, but recommended), it must be installed as close as possible to the
humidier.
– The water supply piping to the humidier should be minimum 1/2 in (13 mm) in diameter with a 1/2 in
NPT female end. The piping material should be pressure-proof to 100 psig (690 kPa), and certied
for use with drinking water systems. If using demineralized water, the water supply piping must be
made of either plastic or stainless steel (minimum DIN 1.4301).
CAUTION!
Risk of damage to the plastic threads in the ll valve!
Prevention: Hand-tighten the NPT adaptor to the ll valve.
– The air gap funnel in the oor should be located away from the control cabinet to keep any rising
steam from damaging the electrical components in the control cabinet. The diameter of the air gap
funnel should be minimum 2-1/2 in (64 mm).
– The drain pipe connecting the air gap funnel to the building drain should have a minimum inner
diameter of 1-1/2 in (38 mm). Use stainless steel (minimum DIN 1.4301) or copper pipe.
– The drain hose from the humidier should be as short as possible, and empty into the air gap funnel
without touching its sides or bottom. Drain hose must have a minimum constant downslope of 1.2°
and must be secured with a hose clamp. The drain hose must be rated for 212 °F (100 °C).
– Install the condensate drain hose (CS/NX model only), and secure it with a hose clamp – refer to
Figure 17 on page 37. The hose must be rated to 212 °F (100 °C). Connect the hose to a condensate
neutralization device, if required by local code, before connecting the hose to a drain.
– Upon completion of installation, disconnect and ush the water supply and drain lines to clear out
any debris in the lines. Check the strainer in the ll valve is free of all debris. Reconnect the lines.
– Prime the condensate trap inside the unit (CS/NX model only) with water.