Honeywell THM5421R1021 Equipment Interface Module Controls up to 4-Stages of Heat

Description

What it is:

• A device that acts as a bridge between your thermostat and your HVAC equipment, enabling more complex control and advanced features.
• It’s compatible with select Honeywell Prestige IAQ and RedLINK VisionPRO thermostats.

Key features:

• Controls up to:
  • 4 stages of heat and 2 stages of cool in a heat pump system
  • 3 stages of heat and 2 stages of cool in a conventional system
• IAQ (Indoor Air Quality) management:
  • Three sets of universal IAQ contacts to control humidification, dehumidification, and ventilation.
• Sensor inputs:
  • Four sensor inputs for wired sensors or dry contact devices, allowing integration with additional sensors for enhanced comfort and energy savings.

Benefits:

• Expands control capabilities for multi-stage systems
• Enhances IAQ management for healthier indoor air
• Connects with additional sensors for optimized performance
• Streamlines wiring by reducing connections at the thermostat
• Facilitates remote access and control through compatible thermostats

Installation:

• It’s typically mounted near your HVAC equipment and wired to both the thermostat and the HVAC system.
• Professional installation is recommended.

Compatibility:

• Ensure compatibility with your specific thermostat model before purchase.

Additional notes:

• It’s not a standalone thermostat and requires a compatible thermostat to function.
• It doesn’t have its own user interface or display.
• Consider consulting a qualified HVAC professional for guidance on installation and compatibility.