Honeywell Home CT50K1002 Standard Heat Only Thermostat User Manual

Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Honeywell Home CT50K1002 Standard Heat Only Thermostat. Designed for simplicity and reliability, this thermostat is mercury-free and compatible with central gas or oil heating systems.

Key Features

• Quiet Switching: Ensures minimal operational noise.
• Heat Only Operation: Specifically designed for heating systems.
• 2-Wire Connection: Simple wiring for easy installation.
• Mercury Free: Environmentally conscious design.
• Compatible with Central Gas or Oil Heating: Versatile application for common heating systems.

Compatibility

The Honeywell Home CT50K1002 thermostat is designed for specific heating systems. Please review the compatibility chart below to ensure it is suitable for your setup.

Image: Compatibility chart for the CT50 thermostat, showing compatible and non-compatible heating and cooling systems. Compatible heating systems include Heating Only, Single Stage, Furnace/Forced Air, Hot Water and Steam Radiant Heat, and Gas Fireplaces (24V). Not compatible with Multistage, Heat Pump with Auxiliary Heat, Heat Pump w/o Auxiliary Heat, Gravity Radiant Heat, 750 Millivolt, Cooling Only, Electric Baseboard Heat (120-240 Volts), Convectors, or Radiant Ceiling Heat.

Setup and Installation

Installation of the CT50K1002 thermostat is straightforward due to its simple 2-wire design. Always ensure power to the heating system is turned off at the main breaker before beginning installation.

Included Components:

• CT50K Thermostat Unit
• Wire Labels
• Wall Anchors (2)
• Screws (2)

Wiring Instructions:

1. Turn off power to your heating system at the circuit breaker.
2. Remove your old thermostat. Note the wire connections and label them if necessary.
3. Mount the new CT50K1002 thermostat base to the wall using the provided screws and wall anchors.
4. Connect the two heating wires to the designated terminals on the thermostat. This model is designed for 2-wire heat-only systems.
5. Snap the thermostat cover onto the base.
6. Restore power to your heating system.

Operating Instructions

The Honeywell Home CT50K1002 thermostat features a simple manual operation.

Temperature Control:

• To adjust the desired temperature, use the slider located at the bottom of the thermostat face.
• Slide the control to the right to increase the temperature setting.
• Slide the control to the left to decrease the temperature setting.
• The visible numbers (e.g., 50, 60, 70, 80, 90 for Fahrenheit or 10, 20, 30 for Celsius) indicate the approximate temperature set points.

Heat/Off Switch:

• A simple switch on the side or front allows you to select between "Heat" and "Off" modes.
• Set to "Heat" for the thermostat to control your heating system based on the set temperature.
• Set to "Off" to disable the heating system.

Image: Front view of the Honeywell Home CT50K1002 thermostat, showing the temperature slider with markings for 50, 60, 70, 80, and 90 degrees Fahrenheit.

Maintenance

The Honeywell Home CT50K1002 thermostat requires minimal maintenance.

• Cleaning: Periodically wipe the exterior of the thermostat with a soft, damp cloth. Avoid using abrasive cleaners or solvents.
• Airflow: Ensure that the thermostat is not obstructed by furniture, curtains, or other objects that could interfere with proper airflow and temperature sensing.
• Connections: If you experience issues, ensure the wiring connections are secure. Always turn off power at the breaker before checking connections.

Troubleshooting

If your thermostat is not functioning as expected, consider the following common issues:

• No Heat:
  • Check if the thermostat is set to "Heat" mode.
  • Ensure the temperature setting is above the current room temperature.
  • Verify that the circuit breaker for your heating system is not tripped.
  • Inspect wiring connections for looseness (power off first).
• Inaccurate Temperature Reading:
  • Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources (e.g., lamps, appliances) that could affect its sensor.
  • Confirm proper airflow around the unit.
• System Runs Constantly or Not at All:
  • Verify correct wiring according to the installation instructions.
  • Ensure the thermostat is securely mounted and its internal components are not obstructed.

If problems persist after checking these points, it is recommended to contact a qualified HVAC technician.

Specifications

Image: Side view of the Honeywell Home CT50K1002 thermostat with dimensions labeled: 1.38"D x 2.88"W x 4.75"H.

Warranty and Support

Warranty: The product comes with a manufacturer's warranty. Please refer to the warranty documentation included with your purchase for specific terms and conditions.

Support: For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Honeywell Home customer support. Contact information can typically be found on the product packaging or the official Honeywell Home website.