Resideo T87N1018 Thermostat
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Resideo T87N1018 Thermostat

Resideo T87N1018 Thermostat

The Resideo T87N1018 Thermostat is a high-reliability, non-programmable 24V round thermostat engineered for contractors who require a precise, mercury-free solution for residential installations. This unit features a Celsius scale display and is designed for 1 Heat/1 Cool conventional systems, as well as heat pumps without auxiliary heat. Built on the legacy of the classic "Round" design, it utilizes a thermistor sensor element for accurate temperature control and electronic precision, eliminating the mechanical failures associated with older mercury-switch models. The manual changeover mechanism and intuitive twist-dial interface make it an ideal choice for property owners who prioritize simplicity and durability over complex programming. With its Premier White finish and included decorative cover plate to hide previous mounting marks, the T87N1018 integrates seamlessly into any standard 24Vac HVAC system, providing consistent relay-based switching for heating and cooling cycles.

Key Benefits for Technicians
  • Universal Compatibility: Works with both 2-wire and 3-wire heat-only systems, along with single-stage heat/cool applications.
  • Mercury-Free Construction: Meets modern environmental codes while maintaining the familiar form factor of the classic Honeywell Round series.
  • Rugged Reliability: Utilizing battery-assisted power stealing and a solid-state thermistor, this mechanical-style thermostat reduces callbacks caused by drift.
  • Contractor-Friendly Install: Includes a wall-covering ring and simple terminal labeling for 20 to 30 VAC wiring environments.
  • Celsius-Specific Interface: Specifically calibrated for Celsius temperature display (5 to 30 C range) to match regional requirements or legacy specifications.
Common Questions

Is the Resideo T87N1018 compatible with multi-stage heat pumps?
No, this model is specifically designed for 1H/1C conventional systems and heat pumps without auxiliary heat. For multi-stage or emergency heat applications, a different control model is required.

Does this thermostat require a common wire (C-wire)?
This 24V HVAC thermostat is designed to operate on most systems without a dedicated C-wire by using power-stealing technology, though specific bridge or power modules may be needed for certain high-efficiency systems.

Can the T87N1018 be used in horizontal or vertical orientations?
The classic round design and 3-11/16 inch diameter footprint are mounting-agnostic, provided it is installed on a level surface to ensure the manual switches operate correctly.

This item is not eligible for free shipping.

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.

$32.58

Original: $93.10

-65%
Resideo T87N1018 Thermostat

$93.10

$32.58

Resideo T87N1018 Thermostat

The Resideo T87N1018 Thermostat is a high-reliability, non-programmable 24V round thermostat engineered for contractors who require a precise, mercury-free solution for residential installations. This unit features a Celsius scale display and is designed for 1 Heat/1 Cool conventional systems, as well as heat pumps without auxiliary heat. Built on the legacy of the classic "Round" design, it utilizes a thermistor sensor element for accurate temperature control and electronic precision, eliminating the mechanical failures associated with older mercury-switch models. The manual changeover mechanism and intuitive twist-dial interface make it an ideal choice for property owners who prioritize simplicity and durability over complex programming. With its Premier White finish and included decorative cover plate to hide previous mounting marks, the T87N1018 integrates seamlessly into any standard 24Vac HVAC system, providing consistent relay-based switching for heating and cooling cycles.

Key Benefits for Technicians
  • Universal Compatibility: Works with both 2-wire and 3-wire heat-only systems, along with single-stage heat/cool applications.
  • Mercury-Free Construction: Meets modern environmental codes while maintaining the familiar form factor of the classic Honeywell Round series.
  • Rugged Reliability: Utilizing battery-assisted power stealing and a solid-state thermistor, this mechanical-style thermostat reduces callbacks caused by drift.
  • Contractor-Friendly Install: Includes a wall-covering ring and simple terminal labeling for 20 to 30 VAC wiring environments.
  • Celsius-Specific Interface: Specifically calibrated for Celsius temperature display (5 to 30 C range) to match regional requirements or legacy specifications.
Common Questions

Is the Resideo T87N1018 compatible with multi-stage heat pumps?
No, this model is specifically designed for 1H/1C conventional systems and heat pumps without auxiliary heat. For multi-stage or emergency heat applications, a different control model is required.

Does this thermostat require a common wire (C-wire)?
This 24V HVAC thermostat is designed to operate on most systems without a dedicated C-wire by using power-stealing technology, though specific bridge or power modules may be needed for certain high-efficiency systems.

Can the T87N1018 be used in horizontal or vertical orientations?
The classic round design and 3-11/16 inch diameter footprint are mounting-agnostic, provided it is installed on a level surface to ensure the manual switches operate correctly.

This item is not eligible for free shipping.

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.

Product Information

Shipping & Returns

Description

The Resideo T87N1018 Thermostat is a high-reliability, non-programmable 24V round thermostat engineered for contractors who require a precise, mercury-free solution for residential installations. This unit features a Celsius scale display and is designed for 1 Heat/1 Cool conventional systems, as well as heat pumps without auxiliary heat. Built on the legacy of the classic "Round" design, it utilizes a thermistor sensor element for accurate temperature control and electronic precision, eliminating the mechanical failures associated with older mercury-switch models. The manual changeover mechanism and intuitive twist-dial interface make it an ideal choice for property owners who prioritize simplicity and durability over complex programming. With its Premier White finish and included decorative cover plate to hide previous mounting marks, the T87N1018 integrates seamlessly into any standard 24Vac HVAC system, providing consistent relay-based switching for heating and cooling cycles.

Key Benefits for Technicians
  • Universal Compatibility: Works with both 2-wire and 3-wire heat-only systems, along with single-stage heat/cool applications.
  • Mercury-Free Construction: Meets modern environmental codes while maintaining the familiar form factor of the classic Honeywell Round series.
  • Rugged Reliability: Utilizing battery-assisted power stealing and a solid-state thermistor, this mechanical-style thermostat reduces callbacks caused by drift.
  • Contractor-Friendly Install: Includes a wall-covering ring and simple terminal labeling for 20 to 30 VAC wiring environments.
  • Celsius-Specific Interface: Specifically calibrated for Celsius temperature display (5 to 30 C range) to match regional requirements or legacy specifications.
Common Questions

Is the Resideo T87N1018 compatible with multi-stage heat pumps?
No, this model is specifically designed for 1H/1C conventional systems and heat pumps without auxiliary heat. For multi-stage or emergency heat applications, a different control model is required.

Does this thermostat require a common wire (C-wire)?
This 24V HVAC thermostat is designed to operate on most systems without a dedicated C-wire by using power-stealing technology, though specific bridge or power modules may be needed for certain high-efficiency systems.

Can the T87N1018 be used in horizontal or vertical orientations?
The classic round design and 3-11/16 inch diameter footprint are mounting-agnostic, provided it is installed on a level surface to ensure the manual switches operate correctly.

This item is not eligible for free shipping.

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.

Resideo T87N1018 Thermostat | GSIstore