Category // Gas Boilers

Trinity Tx

Max Input: 199,000 BTU/H Available in a Combi version with built in pump and DHW heat exchanger.

  • Quick Release components
  • Field Convertible gas system
  • Universal vent connections
  • 8:1 Turndown ratio
  • Cascading capable
Innovative Design

The engineering elegance of the Tx is unmatched. The control panel is hinged to provide easy access to the field wiring connectors, and internal components.

Engineering Elegance

The Tx has been engineered to make installation, setup and service easy. Service ports, test receptacles, easy access, and quick release components make the Tx unmatched in the industry.

Combi Application

The 151 and 200 are available in a combi version, whereby the boiler can provide both space heating and domestic hot water. The boiler gives full capacity in heating and DHW modes.

Boiler Features:

  • Built and certified as a heating boiler
  • Pre-wired for use with indirect water heater
  • High efficiency stainless steel boiler
  • All components are quick release type
  • Easy wire connection strip
  • Fully packaged and wired assembly
  • Auto air vent
  • Three pump outputs
  • 120V power receptacle

Controller Features:

  • Full automatic modulation
  • Outdoor reset
  • Lead-Lag compatible
  • Low pressure cutoff
  • Easy programmable display
  • OD reset boost feature
  • Warm weather shutdown(WWSD)
  • Compatible with indirect tank sensor
  • Diagnostic Logging

Plus Features:

  • Low loss header manifold(primary loop)
  • Internal primary circulator
  • All components are quick connecting for servicing
  • Fully integrated plumbing
  • DHW heat exchanger
  • DHW flow sensor
  • Flow diverter valve
  • Gives DHW priority and preheating
  • Modulation to DHW temperature
  • Electronic tempering

To view any of the documents below please click on the link to view online or download in PDF format. If you have any queries about any of our products please contact us. Thank You.

Sales Brochure Download
Installation & Operations Manual Download
Display Operating Guide Download
Tx Piping Change Download
Submittal - Combi Application Download
Submittal - Non-Combi Application Download
Cleaning Instructions Download
Warranty Information Product Registration
Coverage Coverage Period Coverage Rate Components Covered Additional Terms and Conditions
BASIC Years 1 through 5 100% All parts(including Pressure Vessel) Click here for full terms and conditions
Years 6 through 10
Year 11 and beyond
Pressure Vessel only (also applies to the VM110P Indirect Fired Water Heater Tank) See here for full terms & conditions

NTI is an industry leader

Our 40-year-old family business is committed to continuous product improvement. When you buy NTI, you buy the best.