Honeywell CT410A Electric Heating Thermostat Instruction Manual

: June 17, 2024
: Honeywell

Table of Contents

Honeywell CT410A Electric Heating Thermostat
Product Information
FAQ
SPECIFICATIONS
INSTALLATION
Preparation
Remove Old Thermostat
Troubleshooting
WARRANTY
CONTACT
References
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Honeywell CT410A Electric Heating Thermostat

Product Information

Specifications

Product Name: CT410A, B Line Voltage Electric Heat Thermostats
Control: Line voltage control
Compatible Heating Systems: Radiant cable, electric baseboard, and resistive-rated fan-forced heaters
Model Number: 69-1963EFS

Preparation

Proper installation of your Honeywell thermostat will occur if you follow these instructions STEP-BY-STEP. It is recommended that as you read, understand and complete each step, you check it off with a pencil or pen.
Check thermostat suitability for your home’s system by reviewing the ratings above.
Make certain that your heating system is working, especially if it has been inoperative for a length of time. If the system does not work, contact your local electrician for assistance.
Carefully unpack your new thermostat. To avoid damage to the sensing element, do NOT remove the thermostat cover until the wiring has been completed.
Save packages of screws, instructions, receipts, and proof of purchase.

Remove Old Thermostat

WARNING: Electrical Shock Hazard. Can cause severe injury, death, or property damage. Begin by turning off the power to the heating circuit at the main service panel.

Remove the cover of the old thermostat–the cover normally snaps off when pulled firmly from the bottom. If it resists, check for a screw that locks the cover.
Loosen the screws holding the thermostat base to the outlet box and lift away.
Disconnect wires from the old thermostat. As you disconnect each wire, tape the end and label it with the letter of the terminal designation to make reconnection to the new thermostat easier.
Check the old insulation for cracks, nicks, or fraying, and apply high-quality plastic tape where necessary for adequate insulation.
Retain the old thermostat for reference purposes and until your new thermostat is functioning smoothly.

Wire and Mount New Thermostat

Remove the thermostat cover by grasping the top and bottom ends with fingers and pulling outward.
Connect wires to the thermostat as shown in the applicable wiring diagram. Push the wires into the outlet box, and insert the thermostat into the box for mounting by pushing against the top and bottom of the thermostat base.
IMPORTANT: Do not press on the setting knob. Rough handling or strong pressure can damage the knob or sensing element and change calibration.
Secure the thermostat to the box with the two captive mounting screws provided.
Replace the thermostat cover.
Set the knob to the desired room temperature.

FAQ

Q: What heating systems are compatible with this thermostat?
A: This thermostat is compatible with radiant cable, electric baseboard, and resistive-rated fan-forced heaters.
Q: How can I check if the thermostat is suitable for my application?
A: You can check the ratings given in the instructions to ensure that the thermostat is suitable for your application.
Q: What should I do if my heating system is not working?
A: If your heating system is not working, especially if it has been inoperative for a length of time, it is recommended to contact your local electrician for assistance.
Q: Can I remove the thermostat cover before completing the wiring?
A: No, it is important to avoid damage to the sensing element by not removing the thermostat cover until the wiring has been completed.

APPLICATION
Your new Honeywell Electric Heating Thermostat provides line voltage control of radiant cable, electric baseboard, and resistive-rated fan-forced heaters within the ratings listed below.
WARNING Electrical Shock Hazard.
This thermostat is a line voltage control (120-240 Volts). Do not install it if you are not completely familiar with house wiring. If handled improperly, there is a risk of an electric shock hazard, which may cause serious injury or death.

SPECIFICATIONS

CT410A provides single-line break.
CT410B provides double-line break-positive OFF.
Temperature Range: 40°F to 80°F (4°C to 27°C)
Electrical Ratings: 60 Hz noninductive; 22A at 120-240 Vac; 19A at 277 Vac

INSTALLATION

When Installing This Product

Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.
Check the ratings given in these instructions to make sure the thermostat is suitable for your application.
After installation is complete, check out the operation as provided in these instructions.

Preparation

Proper installation of your Honeywell thermostat will occur if you follow these instructions
STEP-BY-STEP. It is recommended that as you read, understand and complete each step, you check it off with a pencil or pen.
Check thermostat suitability for your home system by reviewing the ratings above.
Make certain that your heating system is working, especially if it has been inoperative for a length of time. If the system does not work, contact your local electrician for assistance.
Carefully unpack your new thermostat. To avoid damage to the sensing element, do NOT remove the thermostat cover until the wiring has been completed.
Save packages of screws, instructions, receipt and proof of purchase.

Remove Old Thermostat

WARNING Electrical Shock Hazard. Can cause severe injury, death or property damage.
Begin by turning off the power to the heating circuit at the main service panel.

Remove the cover of the old thermostat-cover normally snaps off when pulled firmly from the bottom.
If it resists, check for a screw that locks the cover.
Loosen the screws holding the thermostat base to the outlet box and lift away.
Disconnect wires from the old thermostat. As you disconnect each wire, tape the end and label it with the letter of the terminal designation to make reconnection to the new thermostat easier.
Check the old insulation for cracks, nicks or fraying, and apply high-quality plastic tape where necessary for adequate insulation.
Retain the old thermostat for reference purposes and until your new thermostat is functioning smoothly.

Wire and Mount New Thermostat

Remove thermostat cover by grasping the top and bottom ends with fingers, and pulling outward.
Connect wires to the thermostat as shown in the applicable wiring diagram. Push the wires into the outlet box, and insert the thermostat into the box for mounting by pushing against the top and bottom of the thermostat base.

IMPORTANT

Do not press on the setting knob. Rough handling or strong pressure can damage the knob or sensing element, and change calibration.
Secure the thermostat to the box with the two captive mounting screws provided.
Replace the thermostat cover.
Set knob to desired room temperature.

Honeywell-CT410A-Electric-Heating-Thermostat-FIG-2

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
BREAKS ON POSITIVE OFF.
EXPOSED UNUSED LEADWIRES TO BE PROPERLY INSULATED.
THERMALLY ACTIVATED—BREAKS ON TEMPERATURE RISE. MAKES ON TEMPERATURE FALL.

CAUTION
SPECIAL SERVICE CO/ALR SOLDERLESS CONNECTORS MUST BE USED WHEN CONNECTING WITH ALUMINUM CONDUCTORS; OTHERWISE, A FIRE HAZARD CAN RESULT.

Fig. 1. Thermostat wiring diagram.

Check Out Thermostat

Turn on the power to the heating system.
Turn the setting knob all the way clockwise ; listen for a clicking sound as the switch makes contact. The electric heater should begin operation.
Turn the knob all the way counterclockwise ; listen for a clicking sound as the switch breaks contact. The electric heater should shut off.

Setting Thermostat

Begin with setting the knob at 70°F (20°C) on the scale.
If this setting is not satisfactory after at least two hours of operation, turn the setting knob up to raise the temperature, or down to lower the temperature. Move the knob only a degree each time.

Troubleshooting

Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following:

Symptom	Checkout	Action
No heat.	Make sure the power is on at the main service panel. Turn the
temperature setting knob fully clockwise .	The heater should start to warm up

within two minutes. If not, contact a qualified electrician to check the thermostat and heater.
Improper connections to thermostat.| With the power to circuit OFF, tighten all wiring connections. Repair any frayed or broken wires.
Other.| Contact a qualified electrician for assistance.
The heater never turns off.| Turn the temperature setting knob fully counterclockwise .| The heater should start to cool within minutes. If not, turn off the power at the main service panel, and contact a qualified electrician.
The thermostat setting and thermometer reading disagree.| The thermostat is affected by drafts or radiant heat.| Contact the electrician to change the location. The thermostat should be about 5 ft (1.5m) above the floor and on an inside wall.

WARRANTY

1-YEAR LIMITED WARRANTY

Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for one (1) year from the date of purchase by the consumer. If at any time during the warranty period, the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option).

If the product is defective,

return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
call Honeywell Customer Care at 1-800-468-1502. Customer Care will determine whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.

This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage that occurred while the product was in the possession of a consumer. Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above.
HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
If you have warranty questions, please write Honeywell Customer Relations, 1985 Douglas Dr., Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.