8
9
Plumbing and Setting the Water Level
NOTE:
Use copper tubing only
to plumb the humidifier.
Select the nearest cold water pipe and install the saddle connector and
needle valve (provided) by following the instructions supplied with the
valve.
WARNING:
Do not use any line connected to an air conditioner.
Lightly clean the tubing ends with fine sandpaper before making con
-
nections.
1.
2.
Uncoil the copper tubing and
connect one end to the saddle
valve. Use the compression
fittings found in the self-
piercing saddle valve parts
bag.
Place the brass compres-
sion nut over the tubing,
then slide the brass ferrule
over the tubing.
Fully insert the tubing into
the saddle valve fitting
and tighten the compres-
sion nut. (Do not over-tighten; moderate tightness should prevent
leakage.)
Thoroughly flush the supply tubing after attaching it to the saddle
valve. This will clear the line of debris which could block water flow
at the float valve.
Route the tubing to the humidifier float valve, keeping the tubing away
from sharp edges.
Connect the remaining end of the tubing to the humidifier float valve.
Open the saddle valve so that the water flows slowly and gently into the
water pan.
Prior to mounting, adjust the humidifier’s water level by following these
instructions:
Set the humidifier reservoir on a level surface.
Allow the unit to fill until the float valve shuts off the incoming flow of
water. (The water should be 2-3/8" deep, plus or minus 1/8". If it is
not, further adjustment will be necessary.)
.
•
•
•
4.
5.
6.
7.
•
•
Figure 7
—Saddle Valve and Fittings
If the water level is too high, remove enough water from the reservoir to
allow the float valve to automatically fill and shut off the water. This will
verify that your final adjustment is correct.
Shut off the water supply and remove all water from the reservoir.
Mount the humidifier according to Options A, B or C, shown on pages
5-7.
Check the two compression fittings—one at the saddle valve, the other at
the float valve. Stop any leakage by tightening the fittings.
Connect the humidifier’s overflow provision to a suitable waste drain.
A standard garden hose or a 3/8" N.P.T. male fitting (not supplied)
can be attached to the overflow fitting.
Provide support at many points along the hose to prevent kinks—
particularly near any heat source.
Turn the water to the humidifier on. The float valve should shut the water
off when the pan is filled to 2-3/8".
Make sure the humidifier is plugged into a powered outlet.
Adjust the compensating humidistat according to instructions provided
with the unit.
8.
9.
10.
11.
12.
•
•
1.
14.
15.
CAUTION:
To prevent valve seat damage,
never adjust the humidi-
fier’s water level without supporting the float arm.
Make adjustments
in small increments.
To raise the water level, push down in the center of the float arm.
(See Figure 8-A, below.)
To lower the water level, hold the float on the bottom of the reservoir
with one hand and pull up on the center of the float arm with the other
hand. (See Figure 8-B, below.)
•
•
Figure 8-A
—Raising the
water level
Figure 8-B
—Lowering the
water level