10. Startup, maintenance and shutdown
• Turn on the water supply to the humidifier (if it has not been previously done), turn on the
electrical power and adjust the humidistat so that the humidifier starts. Adjust humidistat to the
desired setting. Regularly change the setting in accordance with the outside temperature.
• At the end of the humidifying season, turn off the water, remove the disk wheel, agitate the
water in a circular motion and drain the sediment and any water from the basin. Replace the
disk wheel and lid. Turn the humidistat off. Slide the damper to the closed position.
• Under normal conditions, minimal maintenance should be required. If you live in an area where
the mineral content of the water is high (hard water), you may wish to drain the sediment as
described above and periodically clean any minor sediment deposits from the basin and
disk wheel. Use vinegar or any cleaner approved for plastic.
• After soaking in vinegar or cleaning solution, the disk wheel should be rinsed.
• Over time metal parts may discolor. This is a normal reaction and will not affect performance.
• For excessive mineral buildup, lower water level using ball valve and scoop minerals out. Hardened
minerals will break off cleanly with minimal effort.
6
9. About humidity
• Humidity requirements will vary from home to home.
• Your comfort level is the best gauge of the correct humidity. If your windows are fogged then
you have too much humidity. If there is no moisture visible in the window corners and along
the edges then you could have too little humidity.
• In some cases it may take a week or more for the humidity to build up to the proper level.
• Humidity buildup will be hampered by sloppy fitting (or open) windows and doors, exhaust
fans, open fireplace dampers, house plants, and large attics.
• Some types of carpets produce static electricity even with the correct humidity.
• Too much humidity can cause damage to your home and furnishings, and can promote the
growth of household molds and fungi.
• In order to determine the safe relative humidity for homes exposed to various low outside
temperatures, tests were conducted and recommended humidity levels are shown in the
chart below. These levels help prevent damage to your house such as water running down
walls or even building up inside of walls. As a general guide the maximum humidity level is
attained when moisture just appears in the corners of your windows.
Disclaimer
• Except as expressly stated in this manual, ATI Manufacturing Ltd. makes no representation or warranty with respect to the
humidifier and disclaims all implied warranties including any warranty of merchantability or fitness for a particular purpose.
In no event will ATI Manufacturing Inc. be liable to any customer or user of the humidifier for any indirect, incidental, or
consequential damages or loss of revenues or profits, whether the same are foreseeable or not, occasioned
by any cause whatsoever including, but not limited to, the installation or operation of the humidifier.
Outside Air Recommended
Temperature Control Setting
-30˚C/-20˚F 15 %
-25˚C/-10˚F 20 %
-20˚C/0˚F 25 %
-10˚C/10˚F 30 %
-5˚C/20˚F 35 %
>0˚C/20˚F 40 %
