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HE120 BY-PASS DRUM HUMIDIFIER
7 69-1860EF—01
STEP 3: INSTALL BYPASS COLLAR
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.
NOTE: This Humidifier is supplied with an optional damper
to shut off air flow to the unit during the summer. This
damper is required for homes with air conditioning.
1. Position the 6 in. Bypass Collar on the duct so that all
six mounting holes are over the duct. (If you are install-
ing the optional damper, it is recommended that the flat
side of the Bypass Collar face up.) See Fig. 8.
Fig. 8. Mounting Bypass Collar (Optional Damper shown).
2. Trace around the inside of the collar and mark the loca-
tion of the mounting holes with a marker.
3. Remove the collar and carefully cut out the circular
opening using tin snips. See Fig. 9. (Use a drill to start
the cut in the middle of the circle. Cut in an outward spi-
ral to assist in controlling the cut.)
Fig. 9. Cutting Bypass hole.
OPTIONAL
DAMPER
FLAT SIDE OF
BYPASS COLLAR
M13620
STARTING
HOLE
6 IN. ROUND TEMPLATE
M20172