Honeywell THE DIGITAL ROUND CT8775A

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OWNER’S GUIDE

® U.S. Registered Trademark • Patents Pending

CT8775A,C

THE DIGITAL ROUND

™

NON-PROGRAMMABLE THERMOSTATS

CT8775A Heat Only Thermostat (20 to 30 Vac) and

CT8775C Heating-Cooling Thermostat (20 to 30 Vac)

Para obtener un documento con las instrucciones en español, por favor visite

nuestro sitio de web a: www.honeywell.com/yourhome.

Pour obtenir des notices techniques en français, veuillez consulter notre site web

www.honeywell.com/yourhome.

Contents

Step 1. Prepare for Installation .................................................................................................................................. 3

Step 2. Remove Old Thermostat ............................................................................................................................... 4

Step 3. Special Installations........................................................................................................................................ 4

Step 4. Label Thermostat Wires ................................................................................................................................. 5

Step 5. Separate Wallplate from Thermostat.............................................................................................................. 5

Step 6. Mount Decorator Cover Plate and Thermostat Wallplate............................................................................... 5

Step 7. Wire Wallplate Terminals................................................................................................................................ 8

Step 8. Customize the Thermostat ............................................................................................................................. 10

Step 9. Mount the Thermostat .................................................................................................................................... 11

Step 10. Set the System and Fan Switches ............................................................................................................... 12

Step 11. Operating the Thermostat............................................................................................................................. 13

Step 12. Check Operation of Heating and/or Cooling System ................................................................................... 13

If You Have A Problem ............................................................................................................................................... 15

Wiring Diagrams......................................................................................................................................................... 16