and FX industrial heaters

Always verify secondary transformer or line voltage before installation

This kit is typically required when installing specific York gas furnace models at altitudes ranging from 2

With an overall length of 1-15/16 inches and a 2-7/16 inch bolt circle

Tekmar Controls 257 Control 321894-709 and FX industrial heatersThe 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