Honeywell HCM-640BW, HCM-650, HCM-646, HCM-645, HCM-635 Cleaning, Scale Removal, Disinfecting

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Cleaning

Your Protec™ Cleaning Cartridge helps reduce mineral build-up in your humidifier and will help extend the life of your filter. However, you should still continue to clean your humidifier regularly as needed.

Cleaning involves two steps, SCALE REMOVAL and DISINFECTING. Be sure to perform these in the proper order to avoid harmful chemical interactions.

•First, turn off and unplug the humidifier.

•Remove the Water Tank and Motor Housing.

•Remove the filter from the Base.

•Empty any water from the Base.

NOTE: REMOVE FILTER AND PROTEC™ CLEANING CARTRIDGE BEFORE CLEANING. Failure to remove filter during cleaning will destroy the filter.

STEP ONE:

SCALE REMOVAL

BASE

1.Fill the Base with:

• 1 cup (8 ozs.) of undiluted white vinegar

2.Let solution stand for 20 minutes.

3.With the vinegar in the Base, clean all interior surfaces with a soft cloth or brush to help remove scales.

4.Rinse the Base thoroughly with water to remove scale and cleaning solution.

NOTES:

STEP TWO:

DISINFECTING

WATER TANK/BASE

1.Fill the Water Tank with:

•1 teaspoon of household bleach and

•1 gallon of water

Pour some of this solution into the Base.

2.Let solution stand for 20 minutes. Make sure to cover all surfaces.

3.Rinse with water until the smell of bleach is gone.

•The use of other water treatment products and chemicals may cause deterioration of the filter or damage the humidifier, thereby hindering the humidifier's effectiveness.

•If you are experiencing more buildup than when you first purchased your humidifier, you may need to replace your Protec™ Cleaning Cartridge. Changing your cartridge every 30 days will provide continuous protection.

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