69-1110EF—01 6
HE120 BY-PASS DRUM HUMIDIFIER
Fig. 3. Drum Assembly
8. Clean all humidifier parts in a 50% solution of vinegar (or a humidifier cleaner)
and water. Soak overnight to remove stubborn deposits.
NOTE: Replace humidifier pad yearly with the new Honeywell Drum Humidifier Pad
(Part no. HC12A1015). The actual frequency depends on the quality of the
water used.
9. After the humidifier components are clean, reassemble the humidifier by revers-
ing the order of steps 1 through 7.
NOTE: Be sure that the drum shaft is completely seated, listen for the click.
10. Verify the humidifier operation by following the steps in the Checking Your
Humidifier Operation section.
Start of Humidification Season
Replace the humidifier pad with a new Honeywell Drum Humidifier Pad (Part no.
HC12A1015) at the beginning of the heating season. Follow the cleaning instructions
to replace the pad and check for proper operation.
End of Humidification Season
Clean the humidifier and shut it off at the end of the heating season. Follow the
cleaning instructions, steps 1 through 9, to shut down the device for the season.
IMPORTANT
Be sure the humidifier power is off and the humidifier water pan is empty.
OPEN
DRUM END
CLOSED DRUM END
METAL TABS
TINNERMAN
DRUM SHAFT
PAD
SQUEEZE
SLIGHTLY
TO INSTALL
M13609
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