• VLT

    VLT

  • Boiler Front - Covers Off

    Boiler Front - Covers Off

  • Low Water Cut Off

    Low Water Cut Off

  • Top View

    Top View

  • Bottom View

    Bottom View

  • Back View

    Back View

  • Argus Vision Control with simple text display

    Argus Vision Control with simple text display

  • Heat Exchanger View

    Heat Exchanger View

  • Flue Collector

    Flue Collector

  • Removable Terminal Block

    Removable Terminal Block

Helix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler

Helix VLT

Innovative. Efficient. Dependable. Dunkirk.

The Dunkirk VLT features 95% AFUE. Plus:

  • Built-In Primary/Secondary Piping
  • Built-In Low Water Cut Off
  • 5:1 Turn Down Ratio
  • Approved for PVC, CPVC and Polypropylene venting
  • Innovative Heat Exchanger
  • Low Maintenance, Self-Cleaning
  • Designed in the US, for the US
  • 150 psi MAWP

Features

  • Efficiency: Energy Star Rated
  • Capacity: 50, 75, 100, 150, 200 & 299 - All Dunkirk Helix VLT capacities are 95% efficient and meet the criteria for Energy Star 2017 Most Efficient.
  • Heat Exchanger: Direct Vent
  • Combustion: Sealed Combustion
  • Venting: Direct Vent
  • Boiler Type: Hot Water
  • Wall Mount: Bracket included.
  • Boiler Control Module: Automatic Line Voltage/Intermittent Direct Spark Ignition/Modulating with a 5:1 combustion turn down ratio. For multiple boiler applications - the control module can stage fire up to 16 boilers.
  • User Display Interface: Easy programming with text display. Outdoor Temperature Sensor included.
  • Heat Exchanger: High grade 316L/444 Stainless Steel Fin Coil with Flame Sight Glass.
  • Built-in Primary/Secondary Manifold Piping and Pump.
  • Combustion: Gas Valve with Premix Venturi and Blower, Durable Stainless Steel Mesh Modulating Burner with 5:1 turn down ratio, Direct Spark Igniter, Flame sensor and LP Conversion Kit included.
  • Electrical: Detachable Low Voltage Terminal Strip, High Voltage Junction Box and Transformer.
  • Other
    • Factory installed probe-type Low Water Cut Off with test feature
    • 30 PSI Safety Relief Valve
    • Boiler Drain Valve and Condensate Drain with built in trap.

Options

  • Central Heating Pump available for 50 to 200 MBH only (Taco 007 or Grundfos UP15-42F).
  • Concentric Vent Kit (2" and 3").
  • Floor Stand Kit.
  • System Sensor (For Multiple Boiler Applications).

Documents / Resources

Current Documents
Archived Documents
Videos

Brochure

User Manual

Installation & Operation Manual

Parts Lists

Warranty

Engineering Documents / Resources

Options

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