Tekmar 403 TEKNET - tN2 House Control - Boiler - DHW & Setpoint - Mixing - Four Zone Pumps


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Description

Tekmar 403 TEKNET - tN2 House Control - Boiler - DHW & Setpoint - Mixing - Four Zone Pumps

Tekmar 403 TEKNET - tN2 House Control - Boiler - DHW & Setpoint - Mixing - Four Zone Pumps

    Features:

    • Only requires 2 Wires Per Zone, Four 115 V (ac) powered zone outputs
    • DHW priority (optional), setpoint operation
    • Warm weather shut down, zone synchronization
    • DHW post purge, DHW control
    • For use with tekmarNet® 2 thermostats only, tN4 expansion terminals
    • Exercising, boiler protection
    • Variable speed, floating action, or proportional mixing control, automatic boiler differential
    • Expandable up to 48 zones, single on/off, two stage, or modulating boiler control
    • Outdoor temperature reset, indoor temperature feedback

    Specifications: 

    • Agency Approvals CSA C US, meets class B: ICES & FCC Part 15
      Ambient Conditions Indoor use only, 32 to 104 degrees F (0 to 40 degrees C), RH 90 percent Non-condensing
      Boiler Stage1 Stage2 Relay 24 V (ac) 5 A
      Calls Setpoint and DHW calls, Short, 0 - 32 V (ac)
      Control Load 2 VA
      Control Type Microprocessor control, this is not a safety (limit) control
      Dimensions 5.5" H x 5.5" W x 2.25" D (140 x 140 x 57 mm)
      Enclosure Material Blue PC+ABS plastic
      Enclosure NEMA Rating NEMA 1
      Floating Action Load 89 VA, 24 V (ac), 3.7 A
      Hydronic - HVAC Control Type tN2 House Control
      Modulating Output Boiler modulation 0 - 10 V (dc) 500 ohms min load impedance, 4 - 20 mA 1 k ohms max load impedance
      Power Supply 24 V (ac) plus / minus 10 percent 60 Hz, 100 VA max, Class 2
      Pump Power 115 V (ac) 12 A max
      Pump Relay 115 V (ac) 5 A, 1/6 hp
      Sensor NTC thermistor, 10k at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892
      Variable Pump 115 V (ac) 2.4 A




    Installation Manual

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