Macon Controls EVOLZ Remote Sensor

The Macon Controls EVOLZ Remote Sensor with integrated dial is a field-proven thermostatic radiator valve (TRV) operator designed for precision temperature regulation in hydronic heating systems. Engineered as the direct replacement for the B56000, B46000, and ENTLB46000 models, the EVOLZ provides a seamless upgrade path for legacy installations where the sensor and dial must be positioned independently. This unit features a 6'6" capillary length (approx. 2 meters), allowing for remote sensing when the radiator is concealed behind cabinetry or architectural covers that would otherwise restrict airflow to a standard sensing head. The liquid-filled sensor ensures responsive control, modulating flow to maintain setpoints with minimal offset. For contractors managing one-pipe steam or two-pipe hot water systems, this remote operator provides the necessary flexibility to ensure accurate ambient temperature readings and reliable room temperature control in demanding commercial or residential retrofits.

Key Benefits for Technicians

• Universal Compatibility: Serves as the official replacement sensor dial for discontinued B46000 and B56000 series components.
• Precise Modulation: Advanced liquid-filled sensing element reacts quickly to local temperature changes for improved occupant comfort.
• Remote Installation: The 6'6" capillary tubing allows the dial and sensor to be mounted away from the heat source for accurate load sensing.
• Frost Protection: Includes a built-in safety position to prevent coil or piping freeze-ups in unoccupied spaces.
• Drop-in Replacement: Simplifies the HVAC repair process by matching existing thread patterns and actuator requirements of older Macon Controls hardware.

Common Installation Questions

How do I install the EVOLZ as a replacement for the B46000?
The EVOLZ is a direct-fit TRV head. Ensure the valve body is clean, then thread the new operator onto the existing valve base. The separate sensor and dial configuration allows you to mount the sensing bulb in an area with free-flowing air while keeping the adjustment dial accessible.

What is the primary function of the 6'6" capillary tube?
The capillary tube transfers the thermal expansion of the liquid in the remote sensor to the valve actuator. This is critical for HVAC zone control when the radiator is located in a recess or under a cover where a built-in sensor would be "fooled" by trapped heat.

Can the Macon Controls EVOLZ be used on steam radiators?
Yes, when paired with the appropriate Macon thermostatic valve body, this remote sensor dial is compatible with both steam heating and hot water applications, provided the system pressure is within the valve's operating limits.

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.