Aprilaire 4400 ユーザーズマニュアル

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Thank you for your recent Aprilaire
®
 Air Cleaner purchase. 
We sincerely appreciate your business and are pleased to 
add your name to our growing list of customers. With this 
purchase, you have invested in the highest quality equipment 
currently available. Research Products Corporation is the 
largest manufacturer of central air cleaners and humidifiers 
and a recognized leader in the heating and air conditioning 
industry today.
Please be assured that in addition to product quality, we are 
also committed to performance as well as customer satisfaction. 
IMPORTANT:
 Scheduled replacement of the Aprilaire
®
 filtering 
media is necessary. See page 6 for details.
Now, please take a few minutes and read this booklet. This 
will familiarize you with the benefits you will receive from the 
equipment you just purchased and help you understand the 
routine maintenance that will be required. Be sure to register 
your warranty with us for our records and your protection.
Your Aprilaire
®
 Air Cleaner is an investment in healthful 
comfort for your family and protection for your home and 
furnishings. With this purchase, you have invested in an 
air cleaner that is many times more efficient than ordinary 
furnace or air conditioning filters with which you may be 
familiar. There are many benefits you may expect from your 
Aprilaire
®
 Air Cleaner. This booklet is furnished to acquaint 
you with these benefits, and with operation and maintenance 
information to insure the high level of performance this high 
efficiency air cleaner is designed to provide.
INTRODUCTION
2