Honeywell CT2800

69-1638-1
INSTALLATION AND PROGRAMMING INSTRUCTIONS
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
CT2800 Programmable Thermostat
Welcome to the world of comfort and energy savings with your
new Honeywell Programmable Thermostat. Your new thermostat
will automatically control the temperature in your home, keeping
you comfortable while saving energy.
Weekday/Weekend (5-day/2-day)
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vac)
Thermostat and Mounting Plate
Model CT2800
Table of Contents
Installation .................................................................................................................................................................. 2
Programming.............................................................................................................................................................. 12
Operation.................................................................................................................................................................... 18
Frequently Asked Questions ...................................................................................................................................... 22
Customer Assistance ................................................................................................................................................. 23
Limited Warranty ........................................................................................................................................................ 24

Honeywell CT2800 Specifications

General

Brand	Honeywell
Model	CT2800
Category	Thermostat
Language	English

Summary

Installation Guide for CT2800 Thermostat

Verify Thermostat Compatibility

Confirms thermostat compatibility with your heating/cooling system using a compatibility chart.

Remove Old Thermostat

Steps for safely turning off power and removing the old thermostat, including wire labeling.

Set Thermostat for Heating System

Wire Thermostat Terminals

Guides connecting wires from the wall to the correct terminals on the new thermostat.

Special Wiring Instructions

Provides guidance for specific wiring scenarios, like extra wires or clock thermostats.

Programming Your Thermostat

Program Heating Schedule

Details how to set desired temperatures and times for different periods in the heating schedule.

Program Cooling Schedule

Details how to set desired temperatures and times for different periods in the cooling schedule.

Thermostat Operation and Settings

Replace Thermostat Batteries

Override Program Settings

Methods for temporarily or permanently altering programmed temperature schedules.

Temporarily Change Temperature

Frequently Asked Questions

Troubleshooting Common Issues

Provides solutions for common problems like display issues, temperature limits, and incorrect timing.