1Firetube Giant FTG 600-1400NATURAL GAS TO LP CONVERSION INSTRUCTIONS:Version Date: 2019-11-28Kit Number: 85418-1NTI boilers are factory equipped to operate with Natural Gas. BEFORE OPERATING WITH PROPANE theboiler’s gas valve must be adjusted according to these instructions. Use the procedures outlined in these instructions tofully complete the Natural Gas to LP conversion.Kit Contents: Natural Gas to LP Conversion Instructions (p/n 85445) Natural Gas to LP Conversion Decal (p/n 85418)These instructions CANNOT be used to convert NTI appliance models not referenced in theseinstructions. Contact NTI for the Natural Gas to LP conversion kit and instructions for othermodels.Failure to apply these instructions properly may result in dangerous Carbon Monoxide levels,fire or explosion leading to property damage, personal injury or death.ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANELiquefied Petroleum (LP) propane gas is heavier than air; therefore, it is imperative that your boiler is notinstalled in a pit or similar location that will permit heavier than air gas to collect. Local Codes may requireappliances fueled with LP gas be provided with an approved means of removing unburned gases from theroom. Check your local codes for this requirement.NTI # 85445This conversion shall be performed by a qualified service agency in accordance withthe manufacturer’s instructions and all applicable codes and requirements of theauthority having jurisdiction. If the information in these instructions is not followedexactly, a fire, an explosion or production of carbon monoxide may result causingproperty damage, personal injury or loss of life. The qualified service agency isresponsible for the proper application of these instructions. The conversion is notproper and complete until the operation of the converted appliance is checked asspecified in the manufacturer’s instructions supplied with the kit, which necessitatesthe use of a calibrated CO2/O2 and CO combustion analyzer.