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NOTE: Improper wiring could damage the blower
pack or RESDELUX PCB.
9. Remove the front door and service cover from
the RESDELUX humidifier.
10. Connect the power leads for the blower pack to
terminal P7 on the RESDELUX control board
located next to the capacity adjustment
potentiometer.
11. Replace the electrical service cover and front
door.
Once the power is restored the RESDELUX
humidifier is ready for service.
PLUMBING
For humidifiers installed in some cities including
the City of Los Angeles:
A city-approved spring-loaded double ball CHECK
VALVE must be supplied and installed by contractor
on each of the potable water inlets to each humidifier.
Recommended valve manufacturer: Watts Regulator
phone number 508-688-1811. Size: Depending on
supply line 1/4", 3/8" or ½" NPT inlet and outlet.
Model: #7.
All water supply and drain line connections should
be installed in accordance with local plumbing codes.
WATER SUPPLY LINE
1. The Humidifier is intended to operate on potable
(cold) tap water.
2. If the raw water is very hard, NORTEC can
provide longer cylinder life on softened water;
however, softened water is more conductive and
more corrosive. Some hardware changes may
be required, at the time of order or in the field.
3. DO NOT supply hot water to the humidifier.
Minerals will adhere more easily to surfaces and
the fill valve’s small flow regulating orifice could
become plugged.
4. ALWAYS supply and install a shut off valve in
the water supply line dedicated to the humidifier
to facilitate servicing. Use ½" O.D. copper to
within 4 feet of the humidifier. Reduce copper to
1/4" O.D. and connect to the factory-supplied
1/4" olive compression fitting under the
humidifier.
DRAIN LINE
1. The humidifier is equipped with a 7/8" O.D.
unthreaded horizontal drain outlet from the drain
canal on the bottom of the humidifier. A
field-supplied funnel or reducer(see Figure #11)
is recommended. It will prevent backup in the
drain pan and in the cylinder due to partially
blocked or poorly installed drain lines.
2. The drain line should not drain into a sink used
frequently by personnel, or where plumbing
codes prohibit it. Route to a floor drain or
equivalent for safety reasons, since drain water
from humidifier can be very hot.
3. 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 7/8" O.D. copper pipe or larger. Do
not use plastic pipe for drain lines.
4. Each drain line from these humidifiers must be
routed without dips or sags to terminate above
-5-
ClampAnd
7/8"I.D.Hose
FactorySupplied
7/8" O.D. Copper
PipeOr7/8"I.D.
Hose(NotSupplied)
Copper Reducer To
ServeAsFunnel
Drain(ByOthers)
(Min.11/4”OD)
NOTE: Steam hose should not reach bottom of the funnel.
AirGap
DrainCanal
Figure #11
Drain Connection
Humidifier
Drain Line
142-9527
Pump
Floor
Surface
Line
Drain Canal
Figure #12
Drain Pump (if necessary)