Aprilaire 8552 owner manual Zone Control System Electronic Thermostat

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The Aprilaire® Total Indoor Air Comfort System is an integrated group of air quality enhancement

products designed to work with your heating and cooling system to make your home more comfortable.

For the best in indoor air quality, ask your heating and cooling contractor about these fine

Aprilaire products, or visit us at www.aprilaire.com for your Indoor Air Solutions.

Automatic Humidifier

High Efficiency Air Cleaner

Fresh Air Exchanger

The Best Cure For Dryness®

Nobody Makes Clean Air Easier®

Only The Freshest Homes Have April Air

The world’s first computer-equipped,

The economical, trouble-free, high

Your best value for a constant, controlled

completely automatic humidifier.

efficiency air cleaner for your home.

supply of fresh air with energy-recovery.

Zone Control System

Electronic Thermostat

Custom Comfort Throughout Your Home®

Energy Efficiency Never Looked So Good

The most reliable way to achieve temperature

Ultra-thin, easy-to-use programmable or digital

control in every area of your home.

controls featuring pinpoint accuracy.

P.O. BOX 1467 • MADISON, WI 53701-1467

Products For Better Indoor Air Quality

B2202106 REV. 11/99

110-948

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Contents Model Case Of Power Failure Limited WarrantyEnergy Star Program Information Heat = 70˚ Cool = 78˚Heat = 62˚ Cool = 85˚Setting Or Changing The Clock Important Read ALL Instructions ThoroughlyPress the Clock button and 00 minutes will Setting Or Changing Weekday Program For Heating Mode Program Schedule Heat = Cool =Symbol Flashing 12 or some Press and releaseEvent Repeat steps 2-6 to complete programming for the Day eventSetting Or Changing Weekend Program For Heating Mode Sa Su the Morning event symbol flashingHeating mode as applicable Programming for Morning DaySetting Cooling Temperatures Press and release the Program button Mo Tu NightNight events Reviewing Programmed Time Schedules Temperature SettingsTo Start Running The Program For Best Performance Thermostat OperationPage Temperature Control Return to the programTime Control Equipment Control Page Optional Settings For Additional Thermostat Features Installing contractor Automatically returns to the original programInto the latch access slot Sized flathead screwdriverSee Figure Page Turn the thermostat power back on Case Of Power Failure CleaningLimited Warranty Page Page Page Zone Control System Electronic Thermostat