Wiring; Operating The Humidifier - Honeywell he120a Product Data

HE120A,B BY-PASS DRUM HUMIDIFIER
20. Attach the float valve to the humidifier housing on the
same side as the motor.
21. Insert the valve hole plug in the double D hole on the
opposite side of the valve.
22. Assemble the drum and humidifier pad. See Fig. 4.
OPEN
DRUM END
PAD
TINNERMAN
DRUM SHAFT
METAL TABS
Fig. 4. Assembling drum and humidifier pad.
23. Insert the drum assembly into the motor coupling end
and snap into the bearing end.
24. Install the saddle valve (using the instructions on the
saddle valve bag) on the nearest cold water pipe.
25. Connect the copper tubing and route to the humidifier.
26. Connect the copper tubing to the humidifier valve and
finger tighten.
27. Use a wrench to turn the nut one and one-half turns
more.
28. Turn the water on at the saddle valve and adjust the
water level to 1-3/8 in. deep.
NOTE: Turn the valve adjustment screw (located on the
water valve inside the humidifier) clockwise to
lower and counterclockwise to raise.
At Outside Temperature
-20°F (-29°C)
-10°F (-23°C)
0°F (-18°C)
NOTE: As the outside temperature drops, the recommended setting is lowered to accommodate the effects of dewpoint. These
settings should reduce the accumulation of moisture and ice on the windows and in other areas of the house.
Some indoor activities such as cooking, showering and clothes
drying can cause excessive levels of humidity and start the
accumulation of moisture on the windows.
NOTE: If this condition persists for more than a few hours, set
the humidity control to the lowest setting to turn off the
humidifier. If the condition does not improve, ventilate
your home to remove the moisture.
68-0190–3
SQUEEZE
SLIGHTLY
TO INSTALL
CLOSED DRUM END
M12243
Table 2. Recommended Humidity Control Settings.
Recommended Setting
15
20
25

WIRING

CAUTION
Electrical Shock Hazard.
Can shock or burn out equipment.
• Disconnect power supply before installing or
servicing.
• To prevent premature transformer burnout on
multispeed blower applications, do not wire the high
voltage side of the transformer to the same power
source that services the furnace blower.
All wiring must comply with applicable local codes, ordinances
and regulations.
1. Mount the transformer in a convenient location.
2. Connect the wires to the 120V side of the transformer.
3. Wire the drum motor, transformer and humidity control.
Refer to the humidity control installation instructions for
mounting and wiring information.
OPERATING THE
HUMIDIFIER
The HE120A humidifier is
controlled by the H908A
Humidity Control that is
installed either on an interior
wall in the living area or on the
return air duct. Choose the
setting using the combination
relative humidity/outdoor
temperature setting scale on your humidity control. Match the
dial setting to the outdoor temperature for optimizing the
humidity level while reducing the moisture condensation on
your windows. Table 2 can also be used to adjust the humidity
control to the recommended setting.
At Outside Temperature
+10°F (-12°C)
+20°F (-7°C)
Above 20°F (-7°C)
Your Honeywell HE120B
Humidifier is controlled by the
Honeywell H1008 Automatic
Humidity Control with
HumidiCalc+™ Software. The
automatic humidity control is
mounted in the return air duct
where it can be exposed to the air
stream of the return air. The
HumidiCalc+™ Software inside
your automatic humidity control is
designed to automatically adjust
4
H908A
M13155
Recommended Setting
30
35
40
H1008A
M12817