Checking Your Humidifier Operation - Honeywell HE120 Owner's Manual

HE120 BY-PASS DRUM HUMIDIFIER
7. Refer to the drawing to disassemble the drum. See Fig. 3.
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 Resideo 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 reversing 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 Resideo 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.
Vacation
When leaving on vacation, turn off the humidifier water supply and your humidity control. Turn on the humidifier
water supply and reset your humidity control when you return.

CHECKING YOUR HUMIDIFIER OPERATION

After winter startup or maintenance, use the following steps to check the humidifier operation:
1. Turn on the humidifier power and water supply.
2. Open By-Pass Damper (if installed).
3. Check the water level in the humidifier water pan; water level setting should be 1-3/8 in.
NOTE: Turn the valve adjustment screw, located on the water valve inside the
humidifier, clockwise to lower the water level and counter clockwise to raise it.
4. Turn the Humidity Control to the highest setting.
5. Check that the humidifier pad is rotating.
6. Reset the thermostat and Humidity Control to a comfortable setting.
69-1110EF—03
OPEN
DRUM END
PAD
TINNERMAN
DRUM SHAFT
Fig. 3. Drum Assembly
SQUEEZE
SLIGHTLY
TO INSTALL
CLOSED DRUM END
M13609
4
METAL TABS