Tekmar tN2 House Control 400 – Boiler, DHW & Setpoint, Four Zone Valves

Tekmar tN2 House Control 400 – Boiler, DHW & Setpoint, Four Zone Valves

The tekmarNet® 2 House Control 400 is designed to operate all of the mechanical equipment in a residential hydronic heating system, coordinating their operation with network communication. It can be used in applications ranging from a single zone of baseboard with an on/off boiler, to multiple radiant floor zones with a modulating/condensing boiler. This control regulates one space heating water temperature through Outdoor Temperature Reset and Indoor Temperature Feedback. It is capable of controlling a single on/off, two stage, or modulating boiler, Domestic Hot Water, setpoint loads, 4 on-board zone valves, and can expand up to 24 zones in total.


  • Automatic Boiler Differential
  • Boiler Protection
  • DHW Post Purge
  • DHW Priority (optional)
  • DHW control
  • Exercising
  • For use with tekmarNet®2 thermostats ONLY
  • Four 24 V (ac) powered zone outputs
  • Indoor Temperature Feedback
  • One touch overrides (with optional User Switch)
  • Only requires 2 Wires Per Zone
  • Outdoor Temperature Reset
  • Powered pump outputs
  • Setpoint operation
  • Single on/off, two stage, or modulating boiler control
  • System Setback (with optional Timer)
  • Warm Weather Shut Down
  • Zone Synchronization
  • tN4 expansion terminals

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