Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat User Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat. Designed for simplicity and reliability, this non-programmable thermostat offers straightforward temperature control for heating systems.

Image: Honeywell Home CT87K1004 Thermostat Front View

2. Product Features

• Classic Round Styling: Features a familiar circular design that integrates well into various home aesthetics.
• Decorative Cover Ring: Includes a cover ring designed to conceal any wall marks from previous thermostat installations.
• Precise Temperature Control: Maintains temperature within +/-1 degree Fahrenheit for consistent comfort.
• Easy to Install and Use: Simple design facilitates straightforward installation and operation.
• Mercury-Free: Environmentally conscious design, free from mercury components.

3. System Compatibility

The Honeywell Home CT87K1004 thermostat is designed for specific heating systems. Please review the compatibility chart below to ensure it is suitable for your home's heating setup.

Image: CT87K Thermostat System Compatibility Chart

Compatible Systems:

• Heating Only Systems
• Single Stage Heating
• Furnace/Forced Air Heating
• Hot Water and Steam Radiant Heat
• Gas Fireplaces (24V)

Not Compatible With:

• Multistage Systems
• Heat Pump with Auxiliary Heat
• Heat Pump without Auxiliary Heat
• Gravity Radiant Heat
• 750 Millivolt Systems
• Cooling Only Systems
• Multistage Cooling
• Mini Split Systems
• Electric Baseboard Heat (120-240 Volts)
• Convectors
• Radiant Ceiling Heat

4. Installation Guide

Before beginning installation, ensure the power to your heating system is turned off at the main circuit breaker or fuse box to prevent electrical shock.

Wiring:

1. Carefully remove your old thermostat from the wall. Note the wire connections to each terminal. It is recommended to label each wire with the corresponding terminal letter (e.g., R, W, G).
2. Mount the new thermostat's base plate to the wall using the provided screws.
3. Connect the wires to the appropriate terminals on the new thermostat's base. Refer to the wiring diagram on the back of the thermostat or in the detailed installation instructions provided with the product.
4. Once wires are securely connected, snap the thermostat face onto the base plate.

Image: Thermostat Wiring Terminals

After installation, restore power to your heating system. The thermostat is now ready for operation.

5. Operating Instructions

The Honeywell Home CT87K1004 thermostat is designed for simple, manual operation.

Setting the Temperature:

• To adjust the desired room temperature, simply rotate the outer dial of the thermostat.
• The red indicator on the outer ring shows the temperature you have set.
• The red indicator on the inner ring displays the current room temperature.
• Your heating system will activate when the room temperature falls below your set temperature and will turn off once the set temperature is reached.

6. Maintenance

The Honeywell Home CT87K1004 thermostat requires minimal maintenance.

• Cleaning: To clean the thermostat, gently wipe the exterior with a soft, damp cloth. Avoid using abrasive cleaners or solvents.
• Batteries: This thermostat does not require batteries for operation.
• Regular Checks: Periodically verify that the thermostat is accurately reflecting the room temperature and that your heating system responds correctly to temperature adjustments.

7. Troubleshooting

If you encounter issues with your thermostat, consider the following common solutions:

• No Heat: Ensure the power to your heating system is on. Verify that the thermostat's set temperature is higher than the current room temperature. Check wiring connections for looseness or corrosion.
• Inaccurate Temperature Reading: Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources (e.g., lamps, appliances) that could affect its temperature sensor.
• Thermostat Not Responding: If the thermostat does not respond to dial adjustments, re-check all wiring connections. In rare cases, a unit may be defective and require replacement.

For persistent issues, it is recommended to consult a qualified HVAC technician.

8. Technical Specifications

Image: Thermostat Dimensions

9. Warranty and Support

Warranty Information:

The Honeywell Home CT87K1004 Thermostat comes with a 1-year limited warranty. Please refer to the warranty documentation included with your product for full terms and conditions.

Customer Support:

For additional support, technical assistance, or to explore other Honeywell Home products, please visit the official Honeywell Home Store.