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TRX Series

The TRX is a high-efficiency, wall-hung boiler equipped with an Innovative XTRATECH® stainless steel heat exchanger with large diameter tubing. Every unit is equipped with embedded Wi-Fi connectivity so that the TRX control can easily communicate with NTI remote connectivity tools, making servicing easier. All internal components utilize bayonet quick connectors, eliminating the need to braze or solder within the unit. Swing down control box greatly enhances serviceability, making all major components easily accessible.

Key Features

  • Models up to 96% AFUE
  • Modulating Combustion up to 11:1
  • Wi-Fi on board for remote control and monitoring
  • Integrated ECM pump and DHW diverter valve on all models
  • Small zone valve systems may not require an additional pump or a low loss header
  • Easy service access and quick component connections
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Find a Distributor
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Remote Connectivity
Remote Connectivity
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Specifications

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Product comparison
TRX085,TRX120,TRX110C,TRX150C,TRX150,TRX199,TRX199C
Space Heating Minimum / Maximum Input (Btu/Hr)
space_heating_min_max_input_btu_hr
Domestic Hot Water Minimum / Maximum Input (Btu/Hr)
dhw_min_max_input_btu_hr
DOE AFUE (%)
doe_afue_percent
Heating Capacity
heating_capacity
Net ARHI Rating
net_ahri_rating
DHW Flow Rating (at 77°F rise, gpm)
dhw_flow_rating_77f_rise_gpm
Installation type
installation_type
Weight (lbs.)
weight_lbs
Gas Connection
gas_connection
CH Connections
ch_connections
DHW Connections
dhw_connections
Flue
flue
Minimum - Maximum Exhaust Vent Run
exhaust_vent_run_min_max
Minimum - Maximum Intake Air Pipe Run
intake_air_pipe_run_min_max
Shipping Weight (lbs)
shipping_weight_lbs
Power Supply
power_supply

Manuals & Guides

TRX Installation and Operation Manual (TRX085, 110C, 120, 150C)
/content/dam/NTI/products/TRX/Downloads/TRX%20Installation%20and%20Operation%20Manual%20(TRX085,%20110C,%20120,%20150C).pdf
download
TRX Installation and Operation Manual (TRX150, 199, 199C)
/content/dam/NTI/products/TRX/Downloads/TRX%20Installation%20and%20Operation%20Manual%20(TRX150,%20199,%20199C).pdf
download
Manuel d’installation et d’utilisation TRX (TRX085, 110C, 150C)
/content/dam/NTI/products/TRX/Downloads/Manuel%20d'installation%20et%20d'utilisation%20TRX%20(TRX085,%20110C,%20150C).pdf
download
TRX Series Brochure
/content/dam/NTI/products/TRX/Downloads/TRX%20Series%20Brochure.pdf
download
Brochure de la série TRX
/content/dam/NTI/products/TRX/Downloads/Brochure%20de%20la%20s%C3%A9rie%20TRX.pdf
download
TRX085 & 120 Submittal
/content/dam/NTI/products/TRX/Downloads/TRX085%20&%20120%20Submittal.pdf
download
TRX110C & 150C Submittal
/content/dam/NTI/products/TRX/Downloads/TRX110C%20&%20150C%20Submittal.pdf
download
TRX150 & 199 Submittal
/content/dam/NTI/products/TRX/Downloads/TRX150%20&%20199%20Submittal.pdf
download
TRX199C Submittal
/content/dam/NTI/products/TRX/Downloads/TRX199C%20Submittal.pdf
download
TRX/FTVN User Manual
/content/dam/NTI/products/TRX/Downloads/TRX-FTVN%20User%20Manual.pdf
download
Manuel de l’utilisateur TRX
/content/dam/NTI/products/TRX/Downloads/TRX-FTVN%20User%20Manual.pdf
download
TRX/FTVN Quick Start Guide
/content/dam/NTI/products/TRX/Downloads/TRX-FTVN%20Quick%20Start%20Guide.pdf
download
Guide de démarrage rapide TRX/FTVN
/content/dam/NTI/products/TRX/Downloads/Guide%20de%20d%C3%A9marrage%20rapide%20TRX-FTVN.pdf
download
TRX/FTVN Connectivity Quick Start Guide
/content/dam/NTI/products/TRX/Downloads/TRX-FTVN%20Connectivity%20Quick%20Start%20Guide.pdf
download
Guide de démarrage rapide de la connectivité TRX/FTVN
/content/dam/NTI/products/TRX-Series-II/Downloads/TRX-FTVN%20SII%20Connectivity%20Quick%20Start%20Guide.pdf
download
TRX Accessory Box
/content/dam/NTI/products/TRX/Downloads/TRX%20Accessory%20Box.pdf
download
TRX Parts List (TRX085, 110C, 120, 150C)
/content/dam/NTI/products/TRX/Downloads/TRX%20Parts%20List%20(TRX085,%20110C,%20120,%20150C).pdf
download
TRX/FTVN Cascade Instructions
/content/dam/NTI/products/TRX/Downloads/TRX-FTVN%20Cascade%20Instructions.pdf
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LP Conversion (TRX085, 110C, 120, 150C)
/content/dam/NTI/products/TRX/Downloads/LP%20Conversion%20(TRX085,%20110C,%20120,%20150C).pdf
download
LP Conversion (TRX150, 199, 199C)
/content/dam/NTI/products/TRX/Downloads/LP%20Conversion%20(TRX150,%20199,%20199C).pdf
download
TRX & FTVN Revit Files
/content/dam/NTI/products/TRX/Downloads/TRX%20&%20FTVN%20Revit%20Files.7z
download
Important Warranty Information
/content/dam/NTI/products/TRX/Downloads/Water%20Quality%20Best%20Practices.pdf
download
Water Quality Best Practices
/content/dam/NTI/products/TRX-Series-II/Downloads/TRX%20Series%20II%20Installation%20and%20Operation%20Manual%20TRX150-199-199C%20FR.pdf
download

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NTI TRX Condensing Wall Hung Boiler

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Central Heating Quick Setup for NTI TRX Boiler

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Programming Domestic Hot Water settings on NTI TRX Boiler

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Warranty

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Accessories

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/content/nti/products/accessories/galvanized-floor-stands
We are pleased to announce the availability of two low cost galvanized floor stands for…
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/content/nti/products/accessories/Heat-Exchanger-Coil-Cleaning-Tool
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/content/nti/products/accessories/0-10v-4-20ma-clip-in-module
The N-Link (3-Zone Control Module) is designed to connect to TFTN series boilers, enabling the…
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/content/nti/products/accessories/TRX-FTVN-Low-Loss-Header
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/content/nti/products/accessories/heat-exchanger-coil-cleaning-tool
The Heat Exchanger Coil Cleaning Tool is a device that helps you maintain the efficiency…
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