NTI VM110 - High Altitude Operation; Specifications

Specifications │ Vmax I&O Manual
6
2.0 SPECIFICATIONS
Table 2-1 Vmax Specifications
DESCRIPTION
VM110
VM110P
CSA Input Modulation
1
[MBH]
17 - 110
17 - 110
DOE Heating Capacity
1,2
[MBH]
101
101
Net I=B=R Rating
1,2
[MBH]
88
88
DOE AFUE
2
[%]
95
95
Boiler Water Connections – NPT [in.]
1” (Male)
¾” (Male)
Domestic Hot Water Connections – NPT
[in.]
NA
¾” (Male)
Gas Connection - NPT, in.
½” (Male)
½” (Male)
Vent/Air-inlet Pipe Diameter
[in.]
3
2 or 3
2 or 3
Dimensions H x W x D [in.]
35-1/8 x 18-3/4 x 14-1/8
38-3/8 x 28-1/4 x 17-3/4
Approx. Boiler Weight
with Water [lbs.]
132
275
Approx. Boiler Water Content [Gallons]
3.2
3.2
Approx. Domestic Hot Water Content
[Gallons]
NA
16
Electrical Rating
120V/1Ph/60Hz/less than 12A
Notes:
1
Listed Input and Output ratings are at minimum vent lengths using 3” venting, at an altitude of 0-2000 ft. Numbers will
be lower with longer venting and/or altitudes greater than 2000 ft. When operating with Natural Gas using 2” venting at
the minimum vent length, the Input ratings are reduced to 15 MBH at minimum and 102 MBH at maximum.
2
Ratings based on standard test procedures prescribed by the U.S. Department of Energy.
3
Vmax boilers require a special venting system, use only vent materials and methods detailed in these instructions.
Wall mounting of unit requires two people to lift the boiler into place. Failure to follow
these instructions may result in property damage or personal injury.
High Altitude Operation
The Vmax is designed to operate at its maximum listed capacity in installations located at 0-2000 ft 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 2-2.
Table 2-2 De-rate % for High Altitudes
Elevations
2001 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 for
altitudes above 4500ft [1372 m].
2
USA: De-rate capacity by 4% for every 1000 ft [305 m], if altitude is above 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 with
Section 9.0. Failure to follow these instructions may result in property damage, serious injury, or death.