
Resideo T822L1000 Thermostat
Optimized for hydronic systems utilizing normally open hot water zone valves, the Resideo T822L1000 Thermostat (Econostat) is a reliable, low-voltage solution for precise climate control. This non-programmable mechanical thermostat features a bimetal sensor element and a vented cover for enhanced temperature sensing accuracy of +/- 2 degrees Fahrenheit. Engineered with a positive off position, it ensures the system remains inactive when required, preventing unnecessary cycling in 2-wire setups. The SPST switching action and precision snap-acting switch provide dependable performance for 24VAC cooling or heating applications.
Designed for professional contractors, the vertical-mount Premier White thermostat fits standard outlet boxes or can be direct-walled. Its dual scale Fahrenheit and Celsius display (45-95°F / 7-35°C) and integrated thermometer make it a versatile mercury-free economy thermostat for multi-family residential or light commercial projects. With R and Y terminal designations, the T822L1000 simplifies low voltage thermostat wiring for technicians working with specialized zone valve configurations.
Key Benefits- Normally Open Compatibility: Explicitly designed for hot water zone valves that require a closed circuit to shut and an open circuit to flow.
- Mercury-Free Design: Environmentally compliant Econostat technology eliminates hazardous materials while maintaining mechanical reliability.
- Precision Control: Features a high-performance bimetal sensor and vented housing for responsive, real-time temperature monitoring.
- Simplified Installation: Vertical mounting and clear terminal labels reduce time on the job site for service calls.
Is the T822L1000 compatible with standard heat pumps?
No, this model is a single-stage (1H or 1C) thermostat specifically intended for normally open zone valves or simple 2-wire systems. It does not support reversing valve operation for heat pumps.
Can I use this for a 220V baseboard heater?
No, this is a low voltage thermostat rated for 20-30VAC systems only. Connecting it to line voltage will result in immediate equipment failure.
What is the purpose of the 'Positive Off' setting?
The positive off feature provides a physical break in the circuit, ensuring the connected valve or cooling system cannot engage regardless of ambient temperature fluctuations.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $46.42
-65%$46.42
$16.25Resideo T822L1000 Thermostat
Optimized for hydronic systems utilizing normally open hot water zone valves, the Resideo T822L1000 Thermostat (Econostat) is a reliable, low-voltage solution for precise climate control. This non-programmable mechanical thermostat features a bimetal sensor element and a vented cover for enhanced temperature sensing accuracy of +/- 2 degrees Fahrenheit. Engineered with a positive off position, it ensures the system remains inactive when required, preventing unnecessary cycling in 2-wire setups. The SPST switching action and precision snap-acting switch provide dependable performance for 24VAC cooling or heating applications.
Designed for professional contractors, the vertical-mount Premier White thermostat fits standard outlet boxes or can be direct-walled. Its dual scale Fahrenheit and Celsius display (45-95°F / 7-35°C) and integrated thermometer make it a versatile mercury-free economy thermostat for multi-family residential or light commercial projects. With R and Y terminal designations, the T822L1000 simplifies low voltage thermostat wiring for technicians working with specialized zone valve configurations.
Key Benefits- Normally Open Compatibility: Explicitly designed for hot water zone valves that require a closed circuit to shut and an open circuit to flow.
- Mercury-Free Design: Environmentally compliant Econostat technology eliminates hazardous materials while maintaining mechanical reliability.
- Precision Control: Features a high-performance bimetal sensor and vented housing for responsive, real-time temperature monitoring.
- Simplified Installation: Vertical mounting and clear terminal labels reduce time on the job site for service calls.
Is the T822L1000 compatible with standard heat pumps?
No, this model is a single-stage (1H or 1C) thermostat specifically intended for normally open zone valves or simple 2-wire systems. It does not support reversing valve operation for heat pumps.
Can I use this for a 220V baseboard heater?
No, this is a low voltage thermostat rated for 20-30VAC systems only. Connecting it to line voltage will result in immediate equipment failure.
What is the purpose of the 'Positive Off' setting?
The positive off feature provides a physical break in the circuit, ensuring the connected valve or cooling system cannot engage regardless of ambient temperature fluctuations.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
Optimized for hydronic systems utilizing normally open hot water zone valves, the Resideo T822L1000 Thermostat (Econostat) is a reliable, low-voltage solution for precise climate control. This non-programmable mechanical thermostat features a bimetal sensor element and a vented cover for enhanced temperature sensing accuracy of +/- 2 degrees Fahrenheit. Engineered with a positive off position, it ensures the system remains inactive when required, preventing unnecessary cycling in 2-wire setups. The SPST switching action and precision snap-acting switch provide dependable performance for 24VAC cooling or heating applications.
Designed for professional contractors, the vertical-mount Premier White thermostat fits standard outlet boxes or can be direct-walled. Its dual scale Fahrenheit and Celsius display (45-95°F / 7-35°C) and integrated thermometer make it a versatile mercury-free economy thermostat for multi-family residential or light commercial projects. With R and Y terminal designations, the T822L1000 simplifies low voltage thermostat wiring for technicians working with specialized zone valve configurations.
Key Benefits- Normally Open Compatibility: Explicitly designed for hot water zone valves that require a closed circuit to shut and an open circuit to flow.
- Mercury-Free Design: Environmentally compliant Econostat technology eliminates hazardous materials while maintaining mechanical reliability.
- Precision Control: Features a high-performance bimetal sensor and vented housing for responsive, real-time temperature monitoring.
- Simplified Installation: Vertical mounting and clear terminal labels reduce time on the job site for service calls.
Is the T822L1000 compatible with standard heat pumps?
No, this model is a single-stage (1H or 1C) thermostat specifically intended for normally open zone valves or simple 2-wire systems. It does not support reversing valve operation for heat pumps.
Can I use this for a 220V baseboard heater?
No, this is a low voltage thermostat rated for 20-30VAC systems only. Connecting it to line voltage will result in immediate equipment failure.
What is the purpose of the 'Positive Off' setting?
The positive off feature provides a physical break in the circuit, ensuring the connected valve or cooling system cannot engage regardless of ambient temperature fluctuations.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












