NTI Trinity Lx150 - Page 7

Lx Series Installation and Operation Instructions │Trinity Lx
7
High Altitude Operation
The Trinity Lx is designed to operate at its maximum listed capacity in installations less than or equal to 2000 ft
[610 m] above Sea Level. Since the density of air decreases as elevation increases, maximum specified capacity
should be de-rated for elevations above 2000 ft [610 m] in accordance with Table 2-3.
Table 2-3 De-rate % for High Altitudes
Elevations
2000 ft [610 m]
3000 ft [914 m]
4000 ft [1219 m]
4500 ft [1372 m]
5000 ft [1524 m]
In Canada
1
de-rate by 10%
de-rate by 10%
de-rate by 10%
de-rate by 10%
de-rate % may vary
In USA
2
-
de-rate by 12%
de-rate by 16%
de-rate by 18%
de-rate by 20%
Notes:
1
Canada: Altitudes between 2000-4500 ft [610-1372 m], de-rate by 10%. Consult local authorities for de-rating
capacities for altitudes above 4500 ft [1372 m].
2
USA: De-rate capacity by 4% for every 1000 ft [305 m], if altitude is over 2000 ft [610 m].
Combustion – At elevations above 2000 feet, the combustion of the boiler must be
checked with a calibrated combustion analyzer to ensure safe and reliable operation. It is
the Installers responsibility to check the combustion and to adjust the combustion
in accordance to Section 9.0. Failure to follow these instructions may result in property
damage, serious injury, or death.