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HUM Series Owner's Manual
Maintenance Instructions for Models
HUM-SFTBP, HUM-LFTBP & HUM-FP
DANGER: TO AVOID ELECTRICAL SHOCK OR BURN, turn off power
supplying this equipment before servicing!
1. Shut off water supply.
2. Remove the humidifier cover by turning the screw located at the bottom of the cover
and pulling the cover out toward you.
3. Tilt out the distribution tray and evaporator pad assembly.
4. Wash all plastic and metal parts (except electrical parts and components) in
humidifier cleaner or a 50% solution of vinegar and water.
5. If cleaning is not satisfactory, replace evaporator media. This unit also contains a one-
piece wick. This wick must be changed along with the evaporator pad. The wick can
easily be changed by lifting out the old one and replacing it with the new wick
provided with the evaporator pad.
6. Evaporative media should be replaced at least once a year (once each heating season).
7. Wipe any loose sediment from the water tray, making certain no particles are allowed
to plug the drain hole.
Water Hardness and Maintenance Schedule
Your humidifier will accumulate minerals, such as calcium and lime, after operating for a
short period. (Accumulation of minerals is a sure sign the humidifier is producing
humidity.) The amount of accumulation is dependent on the hardness of the water supply
in your area. Therefore, the time between cleaning is unpredictable.
IO-634
6
February 2006
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