27
Planning
Nortec RS
2596995_0_EN_1905
4.2
Services
Water Supply
Water supply to the humidifier must be cold potable drinking water, reverse osmosis (RO) or deion-
ized (DI) water.
The water supply should also be free of additives such as corrosion inhibitors, disinfectants, etc.,
which may affect the performance of the humidifier.
The water supply should have a minimum flow rate of 3.7 gal/min (14 l/min) per cylinder.
The admissible mains pressure must be 30 ... 80 psi (2.0 ... 5.5 bar) (ham hammer-free system).
For mains pressures >80.0 psi (>5.5 bar), the connection must be made via a pressure reducing
valve (adjusted to 30.0 psi (2.0 bar). For mains pressures <30.0 psi (<2.0 bar) please contact your
Condair supplier.
Water temperature should be 33.8 ... 77.0 °F (1...25 °C).
The water supply should be filtered to 5 μm (optional, but recommended).
The inner diameter of the water supply piping should be ø1/2 in (ø12 mm), and must have a 1/2 in
NPT female end.
The water supply line should be made of copper, stainless steel or plastic certified for drinking water
systems.
A shutoff valve and a union fitting must be supplied in the water supply line for ease of maintenance.
Drainage
The humidifier should be connected to a dedicated building drain (recommended) with a minimum
drainage rate of 6.7 gal/min per cylinder. For safety reasons, drain water from the humidifier should
not empty into a sink used by personnel. The drain line must allow free and easy draining. A restricted
drain can cause water in the humidifier to over-concentrate and cause water to back up at the air
gap funnel. Refer to
"Water and Drainage Connections" on page 30
The building drain pipe should be made of either copper or stainless steel (minimum DIN 1.4301)
so it can handle drain water temperatures up to 212 °F (100 °C).
The space in which the humidifier is to be installed should have a floor drain. However, if a floor
drain is not available, a leakage monitoring device must be supplied to permit interruption of the
water supply in case of a leakage.
Power Supply
The power supply to the humidifier should match the full voltage and current draw listed in the speci-
fications. Refer to
for the Nortec RS power requirements, and
for the Nortec RS Space power requirements.
The power supply must have an external dedicated fused disconnect switch. The fusing must not
exceed the maximum circuit protection listed in the tables referenced above.