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track-mounted pilot relay designed for versatile control in building automation and HVACR systems
This kit includes essential TXV replacement parts
Industry-standard 24V control circuit compatibility for seamless integration with existing low-voltage wiring
or the unit tripping the circuit breaker due to high electrical amp draw
Tekmar Controls 257 Control 321894-708 track-mounted pilot relay designed forThe Tekmar Controls 257 Control is a purpose built 24Vac domestic hot water two stage boiler control designed for high demand applications such as hotels, laundromats, and multi family residential complexes. This sophisticated microprocessor control provides high accuracy domestic hot water temperature regulation by effectively staging up to two on off boilers or a single two stage boiler. Utilizing an NTC thermistor 10k ohm sensor, the 257 maintains