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Tekmar tN2 House Control, Boiler, DHW and Setpoint, Four Zone Valves

SKU: 400

$1,087.00 

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Product Details

Tekmar 400

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.


  • Finish Blue
  • UPC 779655040001
  • Online Product ID 9574655
  • Width 5.5"
  • Height 5.5"
  • Depth 2.25"
  • Warranty 3 years Limited
  • Prop65 Warning Warning: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
  • Ambient Temperature Range 32 to 104 degree F
  • Boiler Mix Modulating Output 0 - 10 VDC, 500 Ohm Minimum Load Impedance, 4 - 20 mA, 1 kOhm Maximum Load Impedance
  • Class Class 2
  • Control Load 2 VA
  • Control Type Microprocessor
  • Enclosure Material Abs,Polycarbonate
  • Hydronic Hvac Control Type tN2 House
  • Includes Outdoor Sensor 070, Universal Sensor 082
  • Indoor Outdoor Indoor
  • Nema Rating NEMA 1
  • Power Rating 100 VA Maximum
  • Power Supply 24 VAC plus /-10 percent , 60 Hz
  • Relative Humidity <=90 percent Non-Condensing
  • Relay Boiler System, DHW Pump Relay: 115 VAC, 5 A, 1/6 hp, Boiler Stage 1, 2 Relays: 24 VAC, 5 A
  • Safetylist CSA C US, Meets Class B: ICES and FCC Part 15
  • Sensor NTC Thermistor, 10 kOhm at 77 degree F (25 degree C plus /- 0.2 degree C) Beta = 3892
  • Suitable For Use With tekmarNet 2 Thermostats
  • Zone Valve Load 89 VA, 24 VAC, 3.7 A for Zones 1 to 4
  • Shipping  1.4 lbs.

Additional information

  • For use with tekmarNet 2 thermostats only, tN4 expansion terminals
  • Warm weather shut down, zone synchronization
  • Exercising, boiler protection
  • Only requires 2 wires per zone, four 24 VAC powered zone outputs
  • Outdoor temperature reset, indoor temperature feedback
  • Setpoint operation, automatic boiler differential
  • Powered pump outputs, system setback (with optional timer)
  • DHW control, DHW priority (optional)
  • DHW post purge, single on-off, two stage or modulating boiler control

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