NTI Trinity Lx 150, Инструкция по установке и эксплуатации

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Trinity Lx
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Installation and Operation Instructions Lx Series
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Treatment - Boiler water that falls outside of the conditions listed above must be treated with a corrosion
inhibitor. Each Trinity Lx boiler is provided with at least 1 bottle of “Fernox F1” corrosion inhibitor (Lx500-
800 come with 2 bottles), adequate to treat a 26.4 gallon (100 liter) heating system to a minimum required
concentration of 0.5%. Systems with greater volume will require more inhibitor. For information on
performing the treatment, follow the instructions included with the Fernox F1 Protector. See Table 10-1 for a
list of recommended boiler system cleansers and corrosion inhibitors.
To maintain protection, the level of corrosion inhibitor must be monitored periodically
for the correct concentration.
Anti-freeze - For systems requiring freeze protection, use only inhibited propylene glycol, specially formulated
for hydronic heating systems; use of other types of antifreeze may be harmful to the system and will void the
warranty. Note: the use of glycol may reduce the usable output capacity of the boiler, thus requiring the unit
to be “de-rated” by limiting the maximum operating capacity and/or the maximum water temperature. NTI
recommends against exceeding 35% concentration of glycol.
DO NOT use inhibited glycol with non-compatible boiler inhibitors. Non-compatible
inhibitors may counteract each other rendering them ineffective.
Near Boiler Plumbing
Pressure Relief Valve - A Pressure Relief Valve is factory supplied with each unit and must be field installed at
the boiler outlet in the vertical position, as shown in Figures 10-1(a) and (b), with the drain pipe outlet exiting
the side of the pressure relief valve horizontally and elbowing down. Lx150-400 models come with a 30 psi
relief valve, while Lx500-800 models come with a 50 psi relief valve. The maximum allowable working
pressure (MAWP) varies with boiler model, see Table 10-2; alternate relief valves may be used, so long as
they are ASME certified and meet the requirements for the respective boiler.
If installed with the incorrect orientation (horizontally with drain pipe out the bottom) the
relief valve may not function properly resulting in property damage or personal injury.
Ensure the discharge of the pressure relief is piped to a location where the steam or water
will not cause property damage or serious injury.
Pressure Gauge – Trinity Lx units come with a factory supplied Pressure Gauge. The pressure gauge must be
installed at the boiler outlet, prior to any circulators, and in the vicinity of the pressure relief valve. See
Figures 10-1(a) and (b).
Table 10-2 Pressure Relief Valve Specifications
Boiler
Model Maximum Pressure Relief Valve Setting
/ Boiler MAWP (psi)
Minimum Pressure Relief
Valve Capacity (MBH)
Lx150 30 150
Lx150E 145 150
Lx200 145 200
Lx300 160 300
Lx400 145 400
Lx500 160 500
Lx600 160 600
Lx700 160 700
Lx800 160 800
Notes:
1
Lx150 models sold in US have a MAWP = 145 psi.