NTI Trinity Lx150 Installation And Operation Instructions Manual

Also see for Trinity Lx 150: Installation and operation instructions Installation and operation instructions Installation and operation instructions

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NTI Trinity Lx150 Installation And Operation Instructions Manual Manual pdf 43 page image

Lx Series Installation and Operation Instructions │Trinity Lx4310.0 BOILER AND HEATING SYSTEM PIPINGThe heat exchanger of the Trinity boiler is designed to attain the highest level of heat transfer in a compactdesign. To accomplish this, the heating water flows through a series of fin shaped tubes, designed to maximizethe heat transfer area. To maintain the efficient and reliable operation of the heat exchanger, and to avoid heatexchanger failure, it is critical to ensure the rules and guidelines in this section are followed.Failure to follow the instructions provided in this section will void the NTI warranty andmay result in property damage, fire, serious injury or death.Boiler System PreparationPrior to connecting plumbing to the boiler, flush the entire system to ensure it is free of sediment, flux, solder,scale, debris or other impurities that may be harmful to the system and boiler. During the assembly of theheating system, it is important to keep the inside of the piping free of any debris including construction andcopper dust, sand and dirt.For retrofits, all system piping including radiators, must be cleansed of all build-up including sludge and scale.All systems, old and new, must be cleansed to remove flux, grease and carbon residue. NTI recommendscleansing the boiler system with “Fernox F3 Cleaner”. For retrofit applications with heavy limescale and sludgedeposits, a heavier duty cleaner may be required; NTI recommends the use of “Fernox DS-40 System Cleaner”.For information on performing the cleansing, follow the instructions included with the Fernox DS-40 SystemCleaner. See Table 10-1 for a list of recommended boiler cleansing products.Failure to rid the heating system of the contaminants listed above will void your NTIwarranty and may result in premature heat exchanger failure and property damage.Table 10-1 Boiler System Cleansers and Corrosion InhibitorsApplication Fernox Product NTI Part # DescriptionBoiler Water Treatment F1 Protector 83448 Corrosion inhibitor.Cleanser for new and old systems F3 Cleaner 83449 Removes flux, grease and carbon residue.Cleanser for Retrofits DS-40 System Cleaner 83450 Removes heavy limescale and sludge deposits.Boiler WaterPressure - The Trinity boilers are intended solely for use in pressurized closed loop heating systems operatingwith a minimum pressure of 15 PSI at the boiler outlet. To obtain the minimum system design pressure,follow the piping diagrams illustrated in this section.Oxygen Elimination - This boiler may only be installed in a pressurized closed-loop heating system, free of air(oxygen) and other impurities. To avoid the presence of oxygen, ensure all of the air is removed from thesystem during commissioning via strategically placed adequately sized air-removal devices, locatedthroughout the heating system. See figures in this section detailing the location of the primary air-removaldevice required for the boiler. Immediately repair any leaks in the system plumbing to avoid the addition ofmake-up water; make-up water provides a source of oxygen and minerals that may lead to heat exchangerfailure. Failure to follow these instructions will result in poor performance, unnecessary wear of systemcomponents and premature failure.The Trinity Lx is not approved for operation in an “open system”, thus it cannot be usedfor direct potable water heating or process heating of any kind.Water Chemistry – The installer of the Trinity Lx boiler must consider the condition of the water in the heatingsystem. Ensure the condition of the boiler water falls within the following parameters: PH – between 7.5 and 9.5.  Iron – less than 0.5mg/l. Chloride – less than 125mg/l.  Copper – less than 0.1mg/l. Conductivity – 100 to 300μS/cm (at 25ºC); [TDS 50 to 150ppm or Total Hardness 3 to 9grains/USgal.]