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

This genuine OEM Broan vent fan motor operates at 120V and draws 1

because these brands are part of the Carrier family

the VAL7494 (also superseding VAL19451 and VAL07494) allows for critical system functions including charging

Tekmar Controls 070 Outdoor Sensor 323613-751 it can be used inThe 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