Tekmar Controls 257 Control 326010-701 The all-steel case ensures durability

The all-steel case ensures durability in demanding mechanical rooms

maintaining optimal airflow across evaporator coils to prevent motor overheating and stalling

so you must verify the full model number before installation

Key Benefits: Universal Compatibility: Fits most mid-to-large scale thermostats

Tekmar Controls 257 Control 326010-701 The all-steel case ensures durabilityThe 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