Honeywell Home CT87K1004 The Round Heat Only Manual Thermostat User Manual

Table of Contents

1. Introduction
2. Installation
3. Setting the Temperature
4. Troubleshooting Tips
5. Frequently Asked Questions

1. Introduction

The Honeywell Home CT87K1004 Round Heat Only Manual Thermostat is a non-programmable thermostat designed for easy use and precise temperature control. It is mercury-free and features a classic round design that is both familiar and reliable. This manual will guide you through installation, setting the temperature, troubleshooting tips, and frequently asked questions.

2. Installation

1. Turn off the power to your heating system at the circuit breaker or fuse box.
2. Remove your old thermostat, carefully noting the wiring connections.
3. Mount the thermostat base to the wall using the included screws and anchors. Ensure it is level for accurate temperature readings.
4. Connect the wires to the thermostat base according to your heating system's wiring diagram. The terminals are small, so use a pair of jeweler's screwdrivers to fit the screws and openings.
5. Attach the thermostat cover to the base by aligning the tabs and gently pressing it into place.
6. Turn the power back on to your heating system.

3. Setting the Temperature

To set the desired temperature, simply turn the dial clockwise to increase the temperature or counterclockwise to decrease it. The thermostat will maintain the set temperature within +/-1°F.

4. Troubleshooting Tips

1. If your thermostat is not working, check the wiring connections and ensure they are securely fastened.
2. Ensure the thermostat is level on the wall for accurate temperature readings.
3. If the thermostat is not calling for heat, test the voltage between the two terminals on the thermostat base. If the voltage is below 20V, contact Honeywell for assistance.
4. If the thermostat is still not functioning correctly, consider replacing it with a new unit.

5. Frequently Asked Questions

Is this thermostat compatible with a 12V RV system?

There is no specific information stating that this thermostat is compatible with a 12V RV system. It is recommended to check the product specifications and consult with a professional before attempting installation on a 12V system.

Why is the thermostat not maintaining the correct temperature?

Ensure the thermostat is level on the wall and the wiring connections are secure. If the issue persists, consider contacting Honeywell for assistance or replacing the thermostat.

Can I use this thermostat with a cooling system?

This specific model is designed for heat-only systems. Honeywell offers other models that are compatible with both heating and cooling systems.

Is this thermostat mercury-free?

Yes, the Honeywell Home CT87K1004 Round Heat Only Manual Thermostat is mercury-free.

Q: What type of thermostat is Honeywell Home CT87K1004?
A: Honeywell Home CT87K1004 is a non-programmable, heat-only mechanical thermostat.

Q: What are the dimensions and weight of this thermostat?
A: The product dimensions are 3.62 x 3.62 x 2.88 inches, and it weighs 8 ounces.

Q: Is this thermostat mercury-free?
A: Yes, Honeywell Home CT87K1004 is mercury-free.

Q: Will this thermostat work with millivolt systems?
A: No, Honeywell customer support confirms that it does not work with millivolt systems.

Q: Does this thermostat require a battery?
A: No, this thermostat does not require a battery.

Q: Can this thermostat be turned off during the summer time?
A: Yes, to turn it off during the summer time, turn the dial to its CCW-min or pull the unit out of its socket.

Q: Will this thermostat work for replacing a King thermostat-line voltage double pole?
A: No, for replacing a King thermostat-line voltage double pole, search for "line voltage thermostat" in tools & home improvement.

Q: Is the cover of this thermostat sold separately?
A: No, the cover of Honeywell Home CT87K1004 is not sold separately.

Q: Will this thermostat work with a heat pump unit?
A: It is recommended to contact a heating professional to determine if this thermostat will work with a heat pump unit.

Q: Has anyone had trouble with the boiler coming on too often with this thermostat?
A: Yes, some users have reported that the boiler cycles on and off multiple times for just a few minutes when the room temperature has dropped below the set point. It should start less often and stay on longer after starting.

Additionally, some users have reported issues with installation and functionality. It is recommended to carefully review the product information and contact customer support if needed.