the HF21BZ030 is the manufacturer-designated replacement for part numbers MF41-6043-502 and MF-1233-705

A 15kW electric heater is commonly installed in 3-ton to 5-ton commercial air handlers as emergency heat or to provide a specific temperature rise (Delta T) in cold-climate heat pump applications

Always check that your specific model requires the 16-21 bar setpoints

allowing the system to resume normal operation once internal temperatures return to a safe operating envelope

Bradford White 239-48587-00 Sensor Harness THPU32HP7Y the HF21BZ030 is the manufacturer-designatedThe Bradford White 239 48587 00 Sensor Harness is a critical OEM replacement component engineered for high accuracy thermal monitoring in commercial and residential water heating systems. As a veteran grade water heater sensor assembly, this harness facilitates seamless communication between the immersion temperature sensor and the integrated control module. Built to withstand the rigorous thermal cycling common in high demand HVACR environments, the