ContentsIntroduction 1Principle of Operation 2Operating Instructions 3Checking for Proper Operation 3Maintenance for Models HFT2100, HFT2700 and HFT2900FP 4Water Hardness and Maintenance Schedule 4Homeowner Tips 5Warranty 65Homeowner TipsA. In a home that has had little or no humidification, allow approximately threeweeks for your new humidifier to attain the desired humidity level. Your furniture,woodwork, carpeting, plaster, houseplants and family members all need time toabsorb lost moisture.B. To eliminate drafts that allow heat and humidified air to escape, keep fireplacedampers closed when not in use.Notes:WARNING: Setting your humidity control higher than the listed setting couldcause condensation that would damage your home. If excessive moistureappears on windows or walls, reduce humidity setting at humidistat enoughto eliminate condensation. If the situation continues, turn off water valve andthe humidistat until condensation is gone.