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Boiler Control, Four tN4, BAS, Four Boiler, DHW and Setpoint - 284
Watts

Boiler Control, Four tN4, BAS, Four Boiler, DHW and Setpoint - 284

The Boiler Control 284 is designed to operate up to four boilers to accurately maintain a target water temperature. The 284 operates both condensing and non-condensing boilers that are either modulating, single stage or two stage to provide a flexible, cost effective mixed boiler plant solution with better system performance. The target water temperature is based on outdoor temperature reset or a fixed setpoint for space or process heating applications. Additional loads supplied by the 284 include domestic hot water & fixed setpoint heating. Boiler equal run-time rotation, stand-by primary pump operation & pump exercising all increase boiler plant reliability. The 284 communicates with a Building Automation System (BAS) using BACnet® or Modbus® for remote monitoring & adjustment capability. tekmarNet® Thermostats or a tN4 Gateway 485 can be added to optimize system performance and provide remote monitoring capability.

Features

  • Condensing & non-condensing boiler groups, modulating, single stage or two stage
  • Outdoor temperature reset, programmable schedules
  • BACnet® or Modbus® communication, primary pump sequencing
  • tekmarNet® 4 compatible, control up to four boilers
Specification
  • Literature: 284_A, 284_B, 284_C, 284_D
    Control: Microprocessor control. This is not a safety (limit) control
    Packaged weight: 5.5 lb. (2490 g)
    Dimensions: 8-1/16" H x 11-1/8" W x 2-15/16" D (204 x 282 x 74 mm)
    Enclosure: Blue PC+ABS plastic with metal top and bottom conduit connection walls, NEMA type 1
    Approvals: CSA C US, meets class B: ICES & FCC Part 15, BTL Listed
    Ambient conditions: Indoor use only, 32 to 122°F (0 to 50°C), < 90% RH noncondensing
    Power supply: 115 V (ac) ±10%, 60 Hz, 18 VA
    Primary Pump relays: 230 V (ac) 10 A, 1/2 hp
    Boiler Pump / Valve & IDHW Pump relays: 230 V (ac) 5 A, 1/3 hp
    Boiler Stage, Auxiliary & Alert relays: 230 V (ac) 5 A, 1/6 hp
    Modulating outputs: 4 x 0-10 V (dc) 500 ohm minimum load impedance / 4-20 mA 1 kohm max load impedance
    Calls: 24 V (ac) or Short
    Sensors: NTC thermistor, 10 kohm @ 77°F (25°C ±0.2°C) ß=3892
    –Included: Outdoor Sensor 070 and 2 of Universal Sensor 082
    –Optional: tekmar type: 071, 078, 082
    Warranty: Limited 3 Year (See 284_D for full warranty)
Technical specification
  • Unique ref.tekmar-284
  • Product familyHVAC & Hot Water Solutions
  • Product groupControls > Multi-Staging
  • TypeObject (single object)
  • Date of publishing2020-06-14
  • Edition number1
Related
  • Designed inCanada
  • Manufactured inCanada
Classification
  • BIMobject CategoryElectrical - Controls
  • IFC classificationElectrical Element
  • UNSPSC nameElectrical controls and accessories
  • UNSPSC code391215
  • Uniclass 2015 CodePr_80_51
  • Uniclass 2015 DescriptionMeasuring and metering products
  • CSI MasterFormat 2014 Code26 09 16
  • CSI MasterFormat 2014 TitleElectrical Controls and Relays
  • OmniClass Number23-27 11 15
  • OmniClass TitleFlow Measuring Instrument And Controls
  • CSI UniFormat II CodeD3060
  • CSI UniFormat II TitleControls and Instrumentation

Region availability

North America
Canada
United States