Aprilaire
448
owner manual
DP #10005406
Warranty
Maintenance
Page 20
P.O. BOX 1467 • MADISON, WI
53701-1467
Products For Better Indoor Air Quality
™
DP #10005406
Printed in U.S.A.
Page 19
Page 20
Image 20
Page 19
Page 20
Contents
Automatic Humidifier
Introduction
Principle of Operation
Page
Automatic Mode Manual Mode-see pg
Operation Guide
Figure a
Outdoor Temperature ºF Setting Dial
% Relative Humidity Guide
Figure B
III. Effect of Water Characteristics
IV. Annual Maintenance
Inspection and Service Instructions
Model
For
Maintenance Instructions For Models Reservoir Pump Sections
Models
Model
Model
Limited Warranty
Aprilaire Zone Control Systems
Aprilaire Fresh Air Exchangers Electronic Thermostats
Service and Water Panel Replacement Record
DP #10005406
Top
Page
Image
Contents
