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HE220, HE260 HUMIDIFIER AND INSTALLATION KIT
3 69-1645EF
Installing the 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 the air handing system at the cir-
cuit breaker.
2. Draw a level line on the plenum in the location
chosen for the humidifier. (Leveling assures opti-
mal humidifier performance.)
3. Locate the template (form number 69-1650
included in the box). For the HE220 model, cut
out the template along the dotted line.
4. Tape the template in position and trace around
the template.
5. Remove the template and carefully cut the rect-
angular opening.
6. Disassemble the humidifier; remove the cover and
take out the humidifier pad assembly. See Fig. 3.
Fig. 3. Disassembling humidifier.
7. Make sure the humidifier housing is level, then
position it in the opening so the plastic tabs are in
place on the lower sheet metal edge of the open-
ing. Use pliers, as necessary, to flatten cut edges.
See Fig. 4.
8. Secure the humidifier housing to the opening at the
top and bottom using sheet metal screws.
Fig. 4. Installing humidifier on duct.
9. Use the 6 in. (155 mm) starter collar as a template
to mark the opening for the bypass.
10. Carefully cut the opening for a 6 in. (155 mm)
starter collar. See Fig. 5. Use a drill, punch or awl
to start the cut in the middle of the circle. Cut in an
outward spiral to assist in controlling the cut.
Fig. 5. Cutting bypass opening.
11. Assemble the summer shutoff damper into the
starter collar. Verify that the damper rotates freely
between the open and closed positions. Make sure
the handle is accessible. Mark the damper Closed
position as Summer and the Open position as
Winter. See Fig. 6.
M12304A
WATER
FEED NOZZLE
FRAME
HUMIDIFIER
HOUSING
WATER
FEED TUBE
HUMIDIFIER
PAD ASSEMBLY
COVER
SIDEWALL
BY-PASS SIDEWALL
DUCT
LEVEL
SHEET METAL
SCREWS (4)
PLASTIC
TABS (2)
DRAIN TUBING
M20171
OPENING
TO AIR DUCT
STARTING
HOLE
6 IN. ROUND TEMPLATE
M20172