The TL7235A1003 is a line-voltage thermostat from Honeywell Home for electric resistance heat — baseboard, convectors, radiant ceiling or panel heaters.
Line voltage is the distinction that matters here. A low-voltage thermostat switches a 24 V control circuit and lets a furnace or boiler do the work; a line-voltage thermostat carries the full heater current itself. They are not interchangeable, and a low-voltage stat wired to a baseboard circuit fails immediately.
This is a manual thermostat: one setpoint, held until someone changes it. In a room that is occupied on no particular schedule — a workshop, a spare room, a rental — a manual stat is the one that actually gets used, because no one has to reprogram it after a power cut.
Match the voltage and the pole configuration to the heater circuit, and check the amperage of the heater against the rating of the thermostat. A thermostat sized below the load is the most common cause of a line-voltage stat failing in its first season.
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Brand: Honeywell Home
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Manufacturer Part #: TL7235A1003/U
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Type: Line-voltage thermostat
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Control: Manual
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UPC: 085267262583
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Category: Line Voltage Thermostats
Full Specifications
| Stages |
1 Heat |
| Display Type |
LCD Screen |
| Touchscreen |
No |
| Displayed Information |
Indoor Temperature, Status Display |
| Modes of Operation |
Heat |
| Program Type |
Manual / Not Programmed |
| Energy Star Certified |
No |
| Power Supply |
Battery Powered, Hardwired |
| Power Source |
Line Voltage |
| Frequency |
50 Hz, 60 Hz |
| Warranty |
3 Years |
| Color |
Premier White® |
| Sensor Type |
Thermistor |
| Ambient Operating Temperature (Max) |
122 °F, 50 °C |
| Ambient Operating Temperature (Min) |
32 °F, 0 °C |
| Temperature Setting Range |
40 F to 86 F, 5 C to 30 C |
| Temperature Accuracy |
±1 °F, ±0.5 °C |
| Auto Changeover |
No |
| Electrical Connection Type |
Screw terminals |
| Mounting Type |
Single Gang Electrical Box, Vertical Mount |
| Number of Fan Speeds |
2 |
| Switch Action |
DPST |
| Mounting Location |
J-Box |
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