Carrier HH57AC078 Enthalpy Sensor 321894-706 It is designed to fit

It is designed to fit the same footprint and wiring configurations found in compatible legacy Modine combustion systems

This gauge is typically utilized in hydronic heating systems and commercial boilers where monitoring operating pressure and supply water temperature is essential for safety

Does this control require a full-time 24V power supply

field technicians must source the appropriately sized probe rod to meet specific tank depth requirements

Carrier HH57AC078 Enthalpy Sensor 321894-706 It is designed to fitEnsure your commercial HVAC systems operate with maximum efficiency using the Carrier HH57AC078 Enthalpy Sensor. This solid state OEM replacement part is essential for managing economizer control by accurately measuring both relative humidity and temperature. This dual sensing capability allows the system to calculate total heat content (enthalpy), enabling smart decisions between utilizing outdoor air or mechanical cooling to maintain setpoint