Resideo THM5421R1021 Module
The Resideo THM5421R1021 Module is a professional-grade RedLINK Equipment Interface Module (EIM) designed to streamline complex HVAC installations. As a centralized hub, this EIM allows technicians to manage high-stage equipment and Indoor Air Quality (IAQ) accessories using only two wires at the thermostat location. It is fully compatible with Prestige IAQ and VisionPRO 8000 with RedLINK series thermostats, providing a robust solution for retrofits where pulling new wire is impractical. The module supports advanced configurations, including up to 4 Heat/2 Cool heat pump systems and up to 3 Heat/2 Cool conventional systems.
Operating within an expansive temperature range of -40 to 165 degrees Fahrenheit, the Honeywell THM5421R1021 is built for reliability in unconditioned spaces. It featuring three sets of universal IAQ contacts for integrated control of humidification, dehumidification, and ventilation. With four dedicated sensor inputs, contractors can easily incorporate outdoor air sensors or discharge air temperature probes to optimize system performance and Delta T diagnostics. The hardwired, vertical-mount gray housing utilizes 18-30Vac power and secure screw terminals for a stable, high-performance HVAC wireless interface.
Key Benefits for Technicians:- Simplified Wiring: Provides a "2-wire" solution for full system control, eliminating the need to pull new thermostat cables during equipment upgrades.
- Extensive Staging: Supports complex multi-stage setups, including 4H/2C Heat Pump or 3H/2C Conventional operations.
- IAQ Integration: Integrated universal contacts for dedicated control of whole-house humidifiers, dehumidifiers, or ventilators.
- Extreme Durability: Rated for operation down to -40°F, making it suitable for attic or crawlspace mounting without performance degradation.
- Enhanced Diagnostics: Four terminal inputs support wired sensors for real-time monitoring of discharge and return air.
Which thermostats are compatible with the THM5421R1021?
This module is specifically designed for use with Resideo/Honeywell Home Prestige IAQ, VisionPRO 8000 with RedLINK, and wireless FocusPRO thermostats. It will not function as a standalone controller.
Does this module require a separate power supply?
The EIM operates on standard 18-30Vac HVAC power, typically pulled from the system transformer. It includes R, RC, RH, and C terminals to accommodate various transformer configurations.
Can I use this to control a heat pump with auxiliary heat?
Yes, the module is engineered to handle up to 4 stages of heat for heat pump applications, allowing for seamless management of primary compressors and multiple stages of auxiliary or emergency electric heat.
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 THM5421R1021 Module
The Resideo THM5421R1021 Module is a professional-grade RedLINK Equipment Interface Module (EIM) designed to streamline complex HVAC installations. As a centralized hub, this EIM allows technicians to manage high-stage equipment and Indoor Air Quality (IAQ) accessories using only two wires at the thermostat location. It is fully compatible with Prestige IAQ and VisionPRO 8000 with RedLINK series thermostats, providing a robust solution for retrofits where pulling new wire is impractical. The module supports advanced configurations, including up to 4 Heat/2 Cool heat pump systems and up to 3 Heat/2 Cool conventional systems.
Operating within an expansive temperature range of -40 to 165 degrees Fahrenheit, the Honeywell THM5421R1021 is built for reliability in unconditioned spaces. It featuring three sets of universal IAQ contacts for integrated control of humidification, dehumidification, and ventilation. With four dedicated sensor inputs, contractors can easily incorporate outdoor air sensors or discharge air temperature probes to optimize system performance and Delta T diagnostics. The hardwired, vertical-mount gray housing utilizes 18-30Vac power and secure screw terminals for a stable, high-performance HVAC wireless interface.
Key Benefits for Technicians:- Simplified Wiring: Provides a "2-wire" solution for full system control, eliminating the need to pull new thermostat cables during equipment upgrades.
- Extensive Staging: Supports complex multi-stage setups, including 4H/2C Heat Pump or 3H/2C Conventional operations.
- IAQ Integration: Integrated universal contacts for dedicated control of whole-house humidifiers, dehumidifiers, or ventilators.
- Extreme Durability: Rated for operation down to -40°F, making it suitable for attic or crawlspace mounting without performance degradation.
- Enhanced Diagnostics: Four terminal inputs support wired sensors for real-time monitoring of discharge and return air.
Which thermostats are compatible with the THM5421R1021?
This module is specifically designed for use with Resideo/Honeywell Home Prestige IAQ, VisionPRO 8000 with RedLINK, and wireless FocusPRO thermostats. It will not function as a standalone controller.
Does this module require a separate power supply?
The EIM operates on standard 18-30Vac HVAC power, typically pulled from the system transformer. It includes R, RC, RH, and C terminals to accommodate various transformer configurations.
Can I use this to control a heat pump with auxiliary heat?
Yes, the module is engineered to handle up to 4 stages of heat for heat pump applications, allowing for seamless management of primary compressors and multiple stages of auxiliary or emergency electric heat.
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.
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Description
The Resideo THM5421R1021 Module is a professional-grade RedLINK Equipment Interface Module (EIM) designed to streamline complex HVAC installations. As a centralized hub, this EIM allows technicians to manage high-stage equipment and Indoor Air Quality (IAQ) accessories using only two wires at the thermostat location. It is fully compatible with Prestige IAQ and VisionPRO 8000 with RedLINK series thermostats, providing a robust solution for retrofits where pulling new wire is impractical. The module supports advanced configurations, including up to 4 Heat/2 Cool heat pump systems and up to 3 Heat/2 Cool conventional systems.
Operating within an expansive temperature range of -40 to 165 degrees Fahrenheit, the Honeywell THM5421R1021 is built for reliability in unconditioned spaces. It featuring three sets of universal IAQ contacts for integrated control of humidification, dehumidification, and ventilation. With four dedicated sensor inputs, contractors can easily incorporate outdoor air sensors or discharge air temperature probes to optimize system performance and Delta T diagnostics. The hardwired, vertical-mount gray housing utilizes 18-30Vac power and secure screw terminals for a stable, high-performance HVAC wireless interface.
Key Benefits for Technicians:- Simplified Wiring: Provides a "2-wire" solution for full system control, eliminating the need to pull new thermostat cables during equipment upgrades.
- Extensive Staging: Supports complex multi-stage setups, including 4H/2C Heat Pump or 3H/2C Conventional operations.
- IAQ Integration: Integrated universal contacts for dedicated control of whole-house humidifiers, dehumidifiers, or ventilators.
- Extreme Durability: Rated for operation down to -40°F, making it suitable for attic or crawlspace mounting without performance degradation.
- Enhanced Diagnostics: Four terminal inputs support wired sensors for real-time monitoring of discharge and return air.
Which thermostats are compatible with the THM5421R1021?
This module is specifically designed for use with Resideo/Honeywell Home Prestige IAQ, VisionPRO 8000 with RedLINK, and wireless FocusPRO thermostats. It will not function as a standalone controller.
Does this module require a separate power supply?
The EIM operates on standard 18-30Vac HVAC power, typically pulled from the system transformer. It includes R, RC, RH, and C terminals to accommodate various transformer configurations.
Can I use this to control a heat pump with auxiliary heat?
Yes, the module is engineered to handle up to 4 stages of heat for heat pump applications, allowing for seamless management of primary compressors and multiple stages of auxiliary or emergency electric heat.
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.
