Durastar DR24VINT2 24V Thermostat Interface Module

Durastar DR24VINT2 – 24V Thermostat Interface Module
Seamlessly integrate standard 24V thermostats with your Durastar mini-split system using the Durastar DR24VINT2, a thermostat interface module designed to maintain full inverter compressor performance while allowing conventional control.

Versatile, User-Friendly Design
Measuring just 6-1/8" x 4" x 1-1/2", the DR24VINT2 is compact and easy to install. It includes a 20" 4-wire lead and supports two connection methods—either a 4-pin Molex cable or a non-polar HA/HB 2-wire setup—based on indoor unit compatibility.

Broad Thermostat Compatibility
Compatible with most 24VAC thermostats, including Wi-Fi and non-Wi-Fi models such as Nest, Ecobee, and Honeywell. Allows for the connection of one indoor unit per module while keeping inverter speed modulation intact.

Reliable Indoor Performance
Designed for indoor use only, this interface operates in ambient temperatures from 32–110°F and 40–90% relative humidity, with communication wire lengths up to 65 feet for flexible installation options.

Advanced Control & Wiring Features
Includes full terminal support for R, C, Y1, Y2, G, B, W, W1, E/AUX, DH, and L system connections, enabling control over fan speed, electric heating, emergency heat, and system alerts. A 24VAC transformer is required (not included).

Indoor Unit Compatibility & Installation
Works with a variety of Durastar indoor units across R-410A and R-454B platforms using either provided 4-pin cables or field-supplied HA/HB wires. Additional 20" lead extension available (DRPDRSTATEXT1).

Ideal Use Cases
Perfect for residential or light commercial installations where homeowners or facility managers prefer traditional thermostat control while maintaining the energy-saving benefits of inverter-driven Durastar systems.