NTI Trinity Ti 150 Installation And Operation Instruction Manual

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NTI Trinity Ti 150 Installation And Operation Instruction Manual Manual pdf 12 page image

12IMPORTANT1. Understand and follow the plumbing requirements provided in this section.2. Keep serviceability in mind when installing plumbing around the boiler cabinetry.3. Install fittings that will allow the system to be flushed if needed during annual check-ups.4. Add an inhibitor to the system water to prevent limestone and magnetite deposits from forming,and to protect the boiler from galvanic corrosion (Recommend inhibitor CHP, “Central HeatingProtector” from Fernox).The Trinity boiler comes in two versions, heating and Combi.Heating Version – The standard heating version is designed to operate in a hydronic heating system andcan operate with an indirect water heater.Combi Version – This special version is equipped with internal components to provide hydronic heatingand domestic hot water heating. See Sections 6.1 and 6.3.6.1 PRIMARY LOOP PLUMBINGCirculating Pump Due to the Trinitydesign, the boiler is more restrictive than aconventional boiler, thus greaterconsideration must be given to thecapabilities of the circulating pump(s) in theprimary-loop (Indirect pump included).The following is a listing of therecommended circulators.ModelRestrictionHead LossMinimumFlow (usGPM)Max. Temp.Rise Minimum Primary Pump SizeB&G Grundfos TacoTi150 7’ at 6 GPM 6 45°F NRF-33 UP 26-64 0010Ti200 10’ at 8 GPM 8 45°F PL-36 UP 26-99 0011Relief Valve (30PSI): Is provided with the system, and it is to be mounted as shown in the diagram.Ensure that the discharge of the pressure relief is piped to a location were steam or water won’t causepersonal injury or appliance and property damage.Boiler Venting: Hot water boilers are designed to operate with airless water in the system. The Trinityboiler is provided with a 1/8” Air vent located on the top of the unit. This Air vent is intended to vent theboiler on initial startup. This device will NOT continuously vent air collecting in the primary loop, and it isnot intended to be the primary venting device. The Air Scoop as shown in the diagram is the primaryventing location. It is recommended that an additional Air Scoop be used in the secondary plumbing. Ifair continues to be a problem an air scrubber must be used (recommend Spirovent # VJR 100TM forTi150 or VJR 125TM for Ti200, use 1-1/4” primary-loop plumbing with model VJR 125TM).Low Water Cutoff / Flow Switch: A certified LWCO or Flow Switch is not provided in the package,however one is to be field installed in any application where the boiler is located above ALL the radiationor where local authorities require it. NTI recommends installing a LWCO or flow switch to prevent theboiler from firing without water in the heat exchanger.Trinity Head loss0.010.020.030.040.050.02 4 6 8 10 12 14GPM usFeet of HeadT150 T200