The Tekmar DHW Control 257 is used for dedicated domestic hot water systems. The Tekmar 257 control operates two on off boilers or one two stage boiler to maintain the DHW Target temperature at the DHW Sensor. The Tekmar 257 Control can operate in Proportional P Mode or Proportional Integral Derivative PID Mode. The Tekmar 257 has additional functions that include Boiler Rotation and Cumulative Boiler Run Time Hours. CSA and UL certified for use in the USA and Canada.
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Product Spec Sheet
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