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•INSTALLATION TIP If replacing an existing humidifier
which has been installed on your furnace you may be
able to use the existing cut-outs, however replace the
components, bypass collar and damper, and bypass
ducting.
The majority of furnace humidifiers use 6"
ducting for bypass. The cutout for the humidifier will
more than likely be different. If replacing a drum style
the cutout will not be big enough, and if replacing an old
flow through you may have to first install a separate
metal plate (not supplied) to cover the existing hole as it
may be too big. Before you mount the separate metal
plate (not supplied) attach the humidifier cabinet
template to it and drill all necessary holes and make all
necessary cutouts. Keep in mind the points listed above
about length and level of ducting; it maybe best to cover
all existing holes and start fresh.
STEP #4: WATER SUPPLY AND DRAINAGE CONNECTION
WARNING: Make sure the evaporator pad is installed correctly
before making the water connections to the unit.
1. SAND BOTH ENDS (fig 15) of the water supply tube. FAILURE
TO DO SO MAY RESULT IN LEAKS.
Figure 15
2. Prepare the end (fig 16) of the 1/2" tubing for water connection
to the humidifier (all required hardware supplied in the valve kit).
Brass nut
Figure 16
3. Make the tube connection to the humidifier. Hand tighten the
nut first taking care not to strip the threads on the valve, use
an adjustable wrench to tighten down a couple more turns
(fig 17) – DO NOT OVER TIGHTEN you may strip the threads
on the solenoid valve. If leaks occur you can fix them later.
Figure 17
Brass
Plastic ferroule
insert
Plastic water tube
Model 7000 Flow Through Humidifier
Figure 19
to pierce the water pipe. TURN THE VALVE CLOSED ALL
THE WAY, and then open so water can flow to the
humidifier. Check all fittings for leaks and tighten/repair if
necessary. Water will not be running through the solenoid
valve until electrical connections are made and your furnace
is in heating mode and the humidistat is calling for humidity.
6. YOU MUST RUN A DRAIN TUBE FOR THIS UNIT. Select a
convenient location for running the 1/2" drain tube, 15 ft
supplied. Before you connect the tubing to the drain fitting
on the bottom of the unit, slip the 1/2" hose clamp (supplied)
over the tubing (fig 19). Push the tubing over the fitting and
secure in place with the hose clamp.
CAUTION:
Drainage tubing must not kink or come into
contact with sharp edges or hot surfaces.
STEP #5: ELECTRICAL INSTALLATION
The humidistat supplied with the unit is the central electronic
control for the humidifier and performs 2 functions.
1. HUMIDITY CONTROL – Controls humidity levels in one of 2
operating modes Manual or Automatic.
explanation of the operating modes see section below.
2. HUMIDIFIER CYCLE CONTROL – Dip switch settings adjust the
temperature at which the humidifier will cycle OFF with your
furnace. This control is factory set and should only be adjusted if
necessary. For a more detailed explanation see the section below
Humidifier Cycle Control
To ensure the humidity sensor will get the correct air-flow this
control is design to mount in the return duct (cold air). When
Brass
Brass nut
insert
Plastic water tube
Plastic ferroule
Figure 18
4.
Select
the
convenient
location
connecting
self
needle valve on a cold water
pipe.
Connect the needle
valve as shown in figure 18.
The hardware shown is
supplied in the valve kit.
Once the valve is connected
to a pipe as shown hand
tighten the nut first taking
care not to strip threads, use
an adjustable wrench to
tighten down a couple more
turns.
– DO NOT OVER
TIGHTEN, if leaks occur you
can fix them late
5.
Once
the
valve
mounted and the water
tube is connected you have
For a more detailed
7
most
for
piercing
is
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