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General| Brand | NTI |
|---|---|
| Model | Trinity TX81 |
| Category | Boiler |
| Efficiency | 95% AFUE |
| Heat Exchanger Material | Stainless Steel |
| Fuel Type | Natural Gas, Propane |
| Control System | Modulating, Outdoor Reset |
| Venting | 2" PVC/CPVC |
Details general installation requirements for the NTI Trinity Tx gas boiler, conforming to codes.
Outlines the owner's responsibility for annual servicing and proper maintenance of the boiler.
Defines the installer's role in ensuring correct installation and informing the owner of responsibilities.
Provides guidance on de-rating boiler capacity for installations above 2000 ft.
Specifies requirements for ventilation air openings based on boiler area and volume.
Details minimum clearances required for closet and alcove boiler installations.
Provides specific guidelines for boiler installation in garages and wall mounting.
Instructions for safely removing an existing boiler from a common venting system.
Covers direct vent, indoor combustion air, and safety for plastic piping.
Details pre-commissioning for plastic venting and near boiler vent/air-inlet piping.
Visual diagrams illustrating various termination clearance requirements.
Step-by-step instructions for installing the condensate trap and drain.
Covers natural gas and LP conversion, and general gas piping installation.
Covers safety warnings, operating instructions, and how to turn off the gas.
Details the process for initial boiler start-up and re-lighting the unit.
Procedure for calibrating burner combustion using a combustion analyzer.
Guidance on adjusting the throttle and offset screws for burner calibration.
Procedure for measuring and ensuring gas line pressure is within tolerance.
Covers system prep, water chemistry, and oxygen elimination requirements.
Details on circulator sizing, air removal, expansion tanks, and plumbing configurations.
Explains DHW operation and the function of the DHW Preheat Mode.
Details the near boiler DHW piping connections for Combi models.
Covers field wiring connections, controller fuse, and blower fuse.
Details communication wiring and primary/secondary plumbing for cascades.
Covers sensors, pumps, demands, address, rotation interval, and setpoints.
Checklist for installation steps and initial boiler start-up procedures.
Covers operational checks, final steps before leaving, and contractor duties.
Checklist for annual inspection and procedure for cleaning the combustion chamber.
Handling instructions and safety precautions for Refractory Ceramic Fibers (RFC).
Describes initial power-up sequence and the main screen display.
Explains how to navigate the User and Installer menus for viewing and adjustment.
Guide to understanding and navigating lockout and error codes.
Instructions for replacing the boiler controller and setting the appliance type.
Precautions for servicing and diagnosing an inoperative boiler.
