4 1Congratulations…… on your purchase of a White-Rodgers High-Capacity Flow-Thru Humidifier—one of the finest home humidifiers made!Caring for Your HumidifierPlease take a few minutes to read this booklet. It will familiarize you with themany features and benefits of your new humidifier, and aid you in understandingthe routine maintenance that will ensure many years of efficient operation.If, at some point, you need parts or service to maintain the superior performance ofyour humidifier, follow these simple procedures:• Contact the heating and air conditioning contractor who installed your unit.Often, this information can be found on a label attached to your humidifier orheating system.• If no label is found, look in the yellow pages of your phone book under Heating& Air Conditioning Contractors.• Finally, if these attempts for parts or service fail, write or call White-Rodgers atthe address or phone number printed on the front inside cover or page 5 of thisbooklet.Water Hardnessand Maintenance ScheduleYour humidifier will accumulate minerals such as calcium and lime after operatingfor a short period (accumulation of minerals is a sure sign the humidifier is producinghumidity). The amount of accumulation is dependent on the hardness of the watersupply in your area. Therefore the time between cleaning is unpredictable.NOTE: Excessive buildup of these minerals is detrimental to internal parts as well asevaporative efficiency. Refer to the maintenance instructions above to achieve years ofsatisfactory performance from your White-Rodgers Humidifier.Maintenance Instructions for HFT2100,HFT2700 & HFT2900FPDanger - To Avoid Hazard of Electrical Shock or Burn Turn OffPower Supplying This Equipment Before Servicing.1. Shut off water supply.2. Remove the humidifier cover by turning the screw located at the bottom of thecover and pulling the cover out toward you.3. Tilt out the distribution tray and evaporator pad assembly.4. All plastic and metal parts (except electrical parts and components) can bewashed in humidifier cleaner or a 50% solution of vinegar and water.5. Replace evaporator media, if cleaning is not satisfactory. This unit alsocontains a one piece wick. This wick must be changed along with the evaporatorpad. The wick can be changed very easily by simply lifting out the old one andreplacing it with the new one provided with the evaporator pad.6. Evaporative media should be replaced at least once a year (once each heatingseason).7. Wipe any loose sediment from the water tray (make certain no particles areallowed to plug the drain hole).