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Tekmar 374 Universal Reset Control, Two Mixing, Two Stage Boiler, DHW and Setpoint

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Price: $1,253.95
Item Number: T374
Manufacturer Name: Tekmar
Manufacturer Part No: 779655037401

  • DHW pump or valve operation, DHW priority (optional)
  • 3 Outdoor temperature reset controlled water temperatures, control up to 2 on/off boilers
  • Equal run time rotation, 2 X variable speed pump outputs or 2 X floating action mixing outputs
  • Quick setup for easy installation, user comfort adjustment to increase or decrease building space temperature
  • Boiler load reset, automatic boiler differential
  • Outdoor temperature reset, warm weather shut down
  • CSA C US certified (approved to applicable UL standards)
  • Advanced settings to fine-tune building requirements, test sequence to ensure proper operation
  • Powered boiler system and mixing system pump outputs, exercising
Agency Approvals CSA C US, meets Class B: ICES & FCC Part 15
Ambient Conditions Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH less than or equal to 90 percent Non-condensing, Altitude less than 6560 ft. (2000 m), Installation Category II, Pollution Degree 2
Control Type Microprocessor control, this is not a safety (limit) control
Demand 20 to 260 V (ac) 2 VA
Dimensions 6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm)
Enclosure Material Blue PVC plastic
Enclosure NEMA Rating NEMA 1
Hydronic - HVAC Control Type Universal Reset Control
Power Supply 115 V (ac) plus / minus 10 percent, 50/60 Hz, 1750 VA
Relay 230 V (ac) 5 A, 1/3 hp, pilot duty 240 VA
Sensor NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892
Variable Pump 230 V (ac) 2.4A 1/6 hp, fuse T2.5 A 250 V
Zone Valve Load 89 VA, 24 V (ac), 3.7 A for zones 1 to 4

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