NTI Vmax VM153 - Specifications; High Altitude Operation

Specifications │ Vmax I&O Manual
6
2.0 SPECIFICATIONS
Table 2-1 Vmax Specifications
DESCRIPTION
VM110
VM153
VM110P
VM153P
CSA Input Modulation
1
[MBH]
13.8 - 110
15.4 - 154
13.8 - 110
15.4 - 154
DOE Heating Capacity
1,2
[MBH]
101
141
101
141
Net I=B=R Rating
1,2
[MBH]
88
122
88
122
DOE AFUE
2
[%]
95
Boiler Water Connections – NPT [in.]
1” (Male)
1” (Male)
1” (Female)
4
1” (Male)
Domestic Hot Water Connections –
NPT [in.]
NA
3/4” (Male)
Gas Connection - NPT, in.
1/2” (Male)
Vent/Air-inlet Connections [in.]
3
3
Dimensions H x W x D [in.]
35-1/8 x 18-3/4 x 14-1/8
38-3/8 x 21 x 19 – 1/8
38-3/8 x 28-1/4 x 17-3/4
Approx. Boiler Weight
with Water [lbs.]
132
160
275
300
Approx. Boiler Water Content
[Gallons]
3.2
3.9
3.2
3.9
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.
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.
4
The VM110P comes with an externally mounted plumbing manifold, that adapts the central heat boiler connections to 1-
inch female sweat joint connections.
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.