HE120 BY-PASS DRUM HUMIDIFIER
5 69-1860EF—01
3. Select a location for the Humidistat.
• Humidistat can be mounted on the return duct or on
the wall in the main living space. (Return duct
mounting is easiest for installing wiring.)
• For return duct mounting, the Humidistat must be
mounted upstream from the Humidifier and Bypass
Collar so it is properly sensing the relative humidity
of the house. See Fig. 3.
• Locate the control at least 8 in. upstream from the
Humidifier or Bypass Collar in the return air duct.
Fig. 3. Selecting duct location for
Humidistat and Humidifier.
4. Select a water supply location
• Use either hard or soft water in the Humidifier.
• Use either hot or cold water in the Humidifier.
• Make sure 20 ft. of Plastic Water Tubing is long
enough to connect the water supply (saddle valve) to
the Humidifier.
• Make sure saddle valve is accessible after
installation.
5. Locate 120V Electrical Outlet.
• Select a location with access to an outlet. If an outlet
is not available, contact an electrician to have one
installed.
• Make sure the 20 ft. of Thermostat Wire is adequate
to reach from the Humidifier motor to the Humidistat,
and the Humidistat to the Plug-in Transformer.
6. Locate Closest Floor Drain.
• Select location with access to floor drain, if available.
• Overflow drain is required in applications where
water overflow could cause flooding or property
damage.
• If an overflow drain is needed, make sure Overflow
Tubing is long enough to reach from the Humidifier to
the floor drain.
NOTE: Every installation is unique. Please ensure that
water, power, and drain are available before install-
ing the device. In some cases, additional wire, tub-
ing, or duct may need to be purchased in order to
correctly install the Humidifier.
STEP 2: INSTALL HUMIDIFIER
WARNING
Hazardous Voltage.
Can cause personal injury or equipment damage.
Do not cut or drill into any air conditioning or electrical
accessory.
CAUTION
Sharp Edges Installation Hazard.
Can cause personal injury.
Wear gloves and safety glasses.
1. Turn off power to heating and cooling system.
2. Draw a level line on the duct in the location chosen for
the Humidifier. (Leveling assures optimal performance.)
See Fig. 4.
NOTE: There must be at least 1-1/2 in. of duct above the line
and 8-1/2 in. of duct below the line for proper installa-
tion. The duct must also be at least 11 in. wide for
proper installation.
Fig. 4. Marking template location.
3. Cut out template on page 22.
4. Tape template in position and trace around the template
with a marker.
5. Remove the template and carefully cut the rectangular
opening using tin snips. See Fig. 5. (Use a drill to start
the cut in the middle of the rectangle.)
ALTERNATE LOCATION
RETURN
AIR RETURN
AIR
6 in. (152 mm)
MINIMUM 15 in. (381 mm)
MINIMUM
BEST
LOCATION
RETURN AIR DUCT
M13611
8 in. (203 mm)
MINIMUM