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  Tekmar Boiler Control-One tN4, Four Modulating Boiler & DHW/ Setpoint
Tekmar Boiler Control-One tN4, Four Modulating Boiler & DHW/ Setpoint
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Tekmar Boiler Control-One tN4, Four Modulating Boiler & DHW/ Setpoint

The Boiler Control 275 is designed to stage up to four condensing or non-condensing, modulating or on-off boilers using P.I.D. staging to accurately maintain temperature. Water temperature is controlled by Outdoor Temperature Reset for space heating applications or a fixed setpoint for Domestic Hot Water (DHW) tank heating or industrial process heating applications. The control will also accept an analog 0-10 V (dc) signal from an Energy Management System (EMS) to control the water temperature. Boiler Equal Run Time Rotation, pump exercising and stand-by system pump operation increase boiler plant reliability. The control is tekmarNet® communication compatible allowing for internet connectivity using an optional Gateway 483.

Features

  • Access levels
  • Alerts
  • Automatic Boiler Differential
  • Boiler pump(s) operation (optional)
  • Control up to 4 modulating or on/off boilers
  • DHW Priority (optional)
  • DHW pump operation
  • Equal Runtime Rotation
  • Exercising
  • Outdoor Temperature Reset
  • Powered boiler pump output
  • Primary pump sequencing
  • Programmable Schedule
  • Test sequence to ensure proper component operation
  • User comfort adjustment to increase or decrease building space temperature
  • Warm Weather Shut Down
  • tekmarNet® 4 Compatible

Specifications

Control Microprocessor control. This is not a safety (limit) control
Packaged weight 3.3 lb. (1550 g)
Dimensions 6-5/8" H x 7-9/16" W x 2-13/16" D (170 x 193 x 72 mm)
Enclosure Blue PVC plastic, NEMA type 1
Approvals CSA C US, meets class B: ICES & FCC Part 15
Ambient conditions Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% Non-condensing
Power supply 115 V (ac) ±10%, 60 Hz, 7 VA, 1150 VA max
Relay capacity 230 V (ac) 5 A, 1/3 hp
Demands 20 to 260 V (ac) 2 VA
Sensors NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
-Included Outdoor Sensor 070, 2 of Universal Sensor 082, and 500Ω Resistor
-Optional tekmar type #:071,078,082
Warranty Limited 3 Year Warranty

Current Literature

Product Submittal

Jan 2011 - Present

274_Cpdf

Installation & Operation Manual

Nov 2010 - Present

274_Dpdf

Application Brochure

Nov 2002 - Nov 2003

274_Apdf

RF Noise Interference

May 2009 - Present

SB0054pdf

Energy Savings with Outdoor Reset Brochure

P0022pdf


Part Number: 275

Quantity
Price
1$1,206.53
2 +$1,119.57


 
 
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