Honeywell CT8775A User Manual Page 1

OWNER’S GUIDE® U.S. Registered Trademark • Patents PendingCopyright © 2004 Honeywell International Inc.All Rights Reserved 69-1676—1CT8775A,CTHE DIGI

69-1676—1 10STEP 8. CUSTOMIZE THE THERMOSTATSet Fuel Switch (CT8775C Only)❑ To adjust the fuel switch, locate the switch labeled E/F on the wallplate

11 69-1676—1Table 3. Heat Cycle Rate.NOTE: The cooling cycle rate does not require adjustment and therefore cannot be changed.Fahrenheit/Celsius Indi

69-1676—1 12STEP 10. SET THE SYSTEM AND FAN SWITCHES (CT8775C ONLY)System Switch (see Fig. 5) ❑ Heat: The thermostat controls your heating system.❑ Of

13 69-1676—1STEP 11. OPERATING THE THERMOSTATNOTE: Batteries are not required because the temperature setting is held permanently in memory.Backlit Di

69-1676—1 14Cooling System (CT8775C Only)CAUTIONEquipment Damage Hazard.Can cause permanent damage to compressor or other equipment.Do not operate coo

15 69-1676—1IF YOU HAVE A PROBLEMTable 5. Solution Guide.Customer AssistancePlease read and follow the provided instructions for this thermostat. For

69-1676—1 16Wiring Diagrams POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.WRHEATINGRELAY ORVALVE COILM1945011M19451H

17 69-1676—1Notice:This thermostat is a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374.14COMPRESSOR

69-1676—1 18Limited One-Year WarrantyHoneywell warrants this product to be free from defects in the workmanship or materials, under normal use and ser

19 69-1676—1

69-1676—1 2Enjoy the benefits of The Digital RoundTM Thermostat by Honeywell.• Simple to use. Turn the dial to adjust the temperature setting.• Large

69-1676—1 J.S. Rev. 6-04 www.honeywell.com/yourhomeAutomation and Control SolutionsHoneywell International Inc. Honeywell Limited-Honeywell Limit

3 69-1676—1STEP 1. PREPARE FOR INSTALLATION❑ Check Table 1, the compatibility chart, to make sure the thermostat is compatible with your system. If yo

69-1676—1 4STEP 2. REMOVE OLD THERMOSTAT❑ Test your heating and cooling systems to make sure they work properly. If either system does not work, conta

5 69-1676—1Replacing a thermostat that is connected to three wires on a warm air heating only systemIf you are replacing a thermostat that is connecte

69-1676—1 6Mount Decorator Cover Plate (Optional) and Wallplate Directly to Wall❑ If using the decorator cover plate, pull the wires through the wirin

7 69-1676—1.Mount Decorator Cover Plate (Required) and Wallplate onto Electrical Box❑ Pull the wires through the wiring hole on the decorator cover pl

69-1676—1 8STEP 7. WIRE WALLPLATE TERMINALSIMPORTANTAll wiring must comply with local codes and ordinances. If unsure about household wiring procedure

9 69-1676—1Table 2. Terminal Designations on Old and New Thermostats.NOTES:1. If wires were connected to both Rh and R terminals on the old thermostat