AprilAire 8551 - Manual - manualsarea.com

Page 2 - OWNER’S MANUAL – TABLE OF CONTENTS

OWNER’S MANUAL – TABLE OF CONTENTS Setting Or Changing The Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Setting Or Changing The Weekday Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3...

Page 3 - READ ALL INSTRUCTIONS THOROUGHLY; Setting Or Changing The Clock; DST

– 1 – IMPORTANT: READ ALL INSTRUCTIONS THOROUGHLY Programming your Aprilaire ® Thermostat is done in three easy steps: setting the clock, setting the event times, and setting your desired temperatures. Setting Or Changing The Clock Step 1: If you are currently in Daylight Saving Time (first Sunday i...

Page 5 - Setting Or Changing The Weekday Program; Morning; event is; Evening; event is typically set when you come home from; Night; event at 6:00 AM to be sure the desired temperature

– 3 – Setting Or Changing The Weekday Program Programming your Aprilaire Electronic Thermostat involves selecting the temperature you want in your home and selecting the time you want it to be that temperature. Your Aprilaire Thermostat will allow a maximum of 4 time schedules per day. Each time sch...

Page 6 - PROGRAM SCHEDULE

– 4 – PROGRAM SCHEDULE TIME SCHEDULE THERMOSTAT DESIRED MONDAY – SATURDAY & EVENT SYMBOL TEMPERATURE FRIDAY SUNDAY SETTING Morning Day Evening Night NOTE: While programming you must press a button at least every 15 seconds or the thermostat will revert back to the operational mode. If this happe...

Page 9 - Setting Or Changing The Weekend Program

Step 11: Repeat steps 2-6 to complete programming for the Evening “ ” event. Step 12: Press and release the PROGRAM button – the Night “ ” event symbol will appear. You are now setting the time and cooling temperature you want at night. Step 13: Repeat steps 2-6 to complete programming for the Night...

Page 10 - To Start Running The Program; RESUME; For Best Performance

Reviewing Programmed Time Schedules And Temperature Settings Press and release the PROGRAM button repeatedly to advance to “ Mo Tu We Th Fr ”, or “ Sa Su ” and specific event. Continue pressing the PROGRAM button to review the time schedules and temperature settings for each desired event. To Start ...

Page 11 - Thermostat Operation; TEMPERATURE CONTROL; Reading the Actual Room Temperature:; DECREASE; button or; INCREASE

2. Do not place anything which can give off warm or cool air, such as candles, lamps, or portable humidifiers, near the thermostat. 3. Although the thermostat is internally equipped to prevent short cycling of the air conditioner, it is possible to inadvertently override this protection. Do not star...

Page 14 - Change Between °C and °F :; Checking the Outdoor Temperature:; OUTDOOR; TIME CONTROL; CLOCK

• Change Between °C and °F : The thermostat has the capability of displaying either Celsius or Fahrenheit temperatures. If the displayed temperature seems abnormally high or low (ie: 70˚F = 21˚C) you may need to switch to ˚C or ˚F by simultaneously pressing the DECREASE button and the INCREASE butto...

Page 15 - EQUIPMENT CONTROL; Selecting Cooling Mode:

EQUIPMENT CONTROL • Turning on the Fan: At any time the system fan can run continuously by pressing the FAN button. The Fan icon, “ “, will appear in the lower part of the display indicating that the fan is operating continuously. To return the fan to the normal operating mode, press the FAN button ...

Page 16 - DIP

Optional Settings For Additional Thermostat Features The Model 8551 thermostat is equipped with 2 DIP switches located inside the thermostat on the printed circuit board. These switches are preset by the factory to typical home air conditioning system requirements. The installing contractor also rev...

Page 18 - TO PREVENT DAMAGE, AVOID CONTACT

– 16 – To change the DIP switch settings, the thermostat must be removed from the base which is attached tothe wall. The power to the thermostat must be turned off before disassembling or the thermostat can be permanently damaged. If you do notknow where the switch is that controls the powerto your ...

Page 21 - TO PREVENT

– 19 – Figure 4 b) Align the hinge tabs on the base andthermostat panel. Swing the panel to thebase and snap in place at bottom ofthermostat panel (see Figure 4) . c) Turn the thermostat power back on. CAUTION: TO PREVENT DAMAGE, AVOID CONTACT WITH BLUE TEMPERATURE SENSOR ON BOTTOM RIGHT-HAND CORNER...

Page 22 - In Case Of Power Failure; ” appear on; AC; ” will remain on the display for; Hold; ” a particular temperature, and the power fails, the thermostat; Cleaning

– 20 – In Case Of Power Failure The Model 8551 thermostat does not require a battery. If the power goes out the letters “ AC ” appear on the display indicating power is not being supplied to the thermostat. “ AC ” will remain on the display for up to approximately 30 minutes after the power goes out...

Page 23 - Limited Warranty

– 21 – Limited Warranty Your Research Products Corporation Aprilaire ® Thermostat unit is expressly warranted for two (2) years from date of installation to be free from defects in materials and workmanship. Research Products Corporation’s exclusive obligation under this warranty shall be to supply,...

Page 24 - Automatic Humidifier; High Efficiency Air Cleaner; Fresh Air Exchanger; Zone Control System; Electronic Thermostat

B2202104 REV. 11/99 110-904 P.O. BOX 1467 • MADISON, WI 53701-1467 Products For Better Indoor Air Quality ™ 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 comforta...

AprilAire 8551 - Manual

Table of Contents:

Summary

Other AprilAire Models