NTI Commercial Water Heater Manuals
Select your NTI model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate.
NTI commercial water heaters by model number
| Model | Description | Certified |
|---|---|---|
| LX300WHTrinity | 275,000 Btu/h commercial gas tankless water heater | February 2024 |
| LX400WHTrinity | 399,000 Btu/h commercial gas tankless water heater | February 2024 |
| LX500WHTrinity | 500,000 Btu/h commercial gas tankless water heater | February 2024 |
| LX600WHTrinity | 600,000 Btu/h commercial gas tankless water heater | February 2024 |
| LX700WHTrinity | 700,000 Btu/h commercial gas tankless water heater | February 2024 |
| LX800WHTrinity | 800,000 Btu/h commercial gas tankless water heater | February 2024 |