With central high efficiency air cleaners, the blower of your heating/air conditioning system performs the air movement function. Continuous air cleaning will be accomplished when your thermostat is set for continuous air circulation. If continuous air cleaning is not required, or desired, you can manually set your control for any time period you desire. Many thermostats have a switch position for manual fan. “Automatic” turns on the blower only when heating or cooling is required. “Fan” or “manual” allows you to control blower operation. For those who choose periodic cleaning, (as opposed to continuous cleaning through continuous furnace blower operation), the most important period is during — and for several hours after — vacuuming your home. The vacuuming process (unless you have a central vacuum system) stirs up a large volume of dust particles which must be drawn into your air cleaner. Many of the dust particles generated, while vacuuming, are so heavy they “fall” out of the airstream before they can be drawn out of your living area. This is why it is important to do household dusting several hours after vacuuming. Normally once the heavy particles “fall out”, they are only reintroduced to the air by vacuuming, or similarly vigorous activity. Where allergy symptoms, which are aggravated by pollens and spores, are a concern, continuous cleaning is strongly encouraged. To recap, when removing household dust is the major benefit you are seeking, you should operate your air cleaner during and following periods when dust is being generated or “stirred up”. For pollens and spores which aggravate an allergy condition, your cleaner must be operated continuously when these pollutants are in the environment. The air cleaner can only be effective when air containing the contaminants is drawn through the high efficiency media. - 5 MAINTENANCE The Aprilaire® Air Cleaner requires no electrical component service, generates no ozone, and is not affected by relative humidity or temperature. The only maintenance required is the periodic replacement of the disposable Aprilaire® Media which the homeowner can do in a few minutes. The frequency of replacement will vary with operation time, the amount of pollution generated in the home and is affected by: number of people and their activities, the amount of carpeting, pets, size of home, number of smokers, the pollution level of the area. We recommend replacing the media each year. However, if you do not run your blower continuously (24 hours per day, 365 days per year) the media may last up to two years. Air conditioning systems larger than 3.5 tons, or heating systems larger than 130,000 BTU’s per hour (1400 cfm), will require more frequent attention if operated continuously. Always remember that your Aprilaire® Air Cleaner Media is at its lowest efficiency point when it is new. Efficiency increases with usage. There is no efficiency or performance benefit from replacing your media too often. To obtain service parts and/or replacement media, please proceed as follows: • Call the installer of your APRILAIRE®. This information is often found on your equipment. • Call your heating and air conditioning contractor. • Look for the APRILAIRE® logo in The Yellow Pages under air cleaning & purifying equipment. • Look in The Yellow Pages under heating and air conditioning contractors. Any contractor can order service parts or media replacements for you. Detailed instructions on the easy replacement of the Aprilaire® Media are furnished with each replacement media. - 6 Use only genuine Aprilaire® Stock No. 201 or No. 401 replacement media from your heating/cooling contractor manufactured by Research Products Corporation for continued high performance. MEDIA REPLACEMENT RECORD Date Dealer Name LIFETIME LIMITED WARRANTY Your Aprilaire® High Efficiency Air Cleaner has a limited warranty to be free from defects in workmanship or materials for the lifetime of the product except, however, for the disposable media which will have to be replaced from time to time depending upon the use, and the inner housing seals. Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a replacement for any part of the air cleaner which is found to be defective and is returned by either you or your original supplier to Research Products Corporation, Madison, Wisconsin 53701, together with the date of installation of the air cleaner. THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR COSTS AND SHALL NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CONTRASTED TO DEFECTS DISCOVERED IN THE AIR CLEANER ITSELF. RESEARCH PRODUCTS CORPORATION’S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF IMPLIED WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR PURPOSE OR OF THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED. Some states do not allow limitations on how long an implied w...