because these brands are part of the Carrier family

this unit is compatible with various valve bodies from 1/2" to 2" and offers a stroke of up to 20 mm

Key Benefits for Contractors: OEM Compatibility: Precision-fit 1/2" bore ensures a secure connection to the motor shaft

it can be used in systems with recirculation as long as it is installed on the cold water makeup line before the heater and a proper bypass is utilized for servicing

allowing the system to adjust motor speed based on real-time demand rather than running at constant velocity

Tekmar Controls 070 Outdoor Sensor 323613-751 because these brands are partThe Tekmar Controls 070 Outdoor Sensor is a professional grade 10k ohm NTC thermistor designed for precision temperature monitoring in hydronic and HVAC applications. Engineered for outdoor temperature reset systems, this sensor provides the critical data required for weather responsive control logic, optimizing boiler firing rates and system efficiency. The 070 features an NTC thermistor 10k ohms @ 77F with a Beta of 3892, ensuring linear accuracy