NTI FTVN150 User Manual

Applicable Models:
FTVN085, FTVN110, FTVN150, FTVN199,
FTVN110C, FTVN150C, and FTVN199C
FTVNFTVN
NATURAL TO PROPANE NATURAL TO PROPANE
CONVERSION INSTRUCTIONSCONVERSION INSTRUCTIONS
This conversion kit shall be installed by a qualified
service agency in accordance with the manufacturer’s
instructions and all applicable codes and requirements
of the authority having jurisdiction. If the information
in these instructions is not followed exactly, a fire, an
explosion or production of carbon monoxide may result
causing property damage, personal injury or loss of
life. The qualified service agency is responsible for the
proper installation of this kit. THE INSTALLATION IS NOT
PROPER AND COMPLETE UNTIL THE OPERATION OF THE
CONVERTED APPLIANCE IS CHECKED AS SPECIFIED IN
THE MANUFACTURER’S INSTRUCTIONS SUPPLIED WITH
THE KIT, WHICH NECESSITATES THE USE OF A CALIBRATED
CO
2
/O
2
AND CO COMBUSTION ANALYZER.
WARNING

NTI FTVN150 Specifications

General

Brand	NTI
Model	FTVN150
Category	Boiler
Language	English

Summary

Part 0. General Safety Information

Kit Contents

Lists items included in the LP conversion kit.

Carbon Monoxide Gas Safety Warnings

Critical safety precautions for carbon monoxide risks.

Part 1. Propane Conversion Procedure

Install LP-Mixer and LP-Diaphragm

Step-by-step physical replacement of the natural gas mixer with the LP version.

Perform Preliminary Gas Valve Adjustment

Adjusts the gas valve throttle screw based on boiler model.

Model-Specific Fan Speed Adjustments

Notes specific fan speed adjustments for 199/199C models.

Part 2. Gas Valve and Burner Setup

Operating Sequence and Checks

Prerequisite steps before gas valve and burner setup.

Gas Line Pressure Measurement and Adjustment

Procedures for measuring and setting gas line pressure.

Part 3. Checking/Adjusting the CO2

Prepare Measuring Equipment

Steps to set up the combustion analyzer for CO2 measurement.

Adjust CO2 at Maximum Gas Flow

Check and adjust CO2 levels at maximum boiler output.

Adjust CO2 at Minimum Gas Flow

Check and adjust CO2 levels at minimum boiler output.

Ending Adjustment Procedures

Steps to exit test mode, check for leaks, and reinstall covers.

Update Rating Plate and Conversion Decals

Document the propane conversion on the appliance.