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Table 2A: Rating Data - Models ALP080 thru ALP399 (0 to 2000 Feet Elevation Above Sea Level)
Table 2B: Rating Data - Models ALP080 thru ALP399 (2001 to 7000 Feet Elevation Above Sea Level)
Alpine Series Gas-Fired Boilers
Model
Number *
Input
(MBH)
** Output
(MBH)
Net I=B=R
Ratings
Water (MBH)
AFUE
%
Thermal
Efciency
(%)
Combustion
Efciency (%)
Boiler Water
Volume
(Gal.)
Heat Transfer
Area (Sq. Ft.)
Min. Max.
ALP080 27 80 73 63 95 0.6 7.3
ALP105 35 105 96 83 95 0.7 9.1
ALP150 50 150 138 120 95 1.3 16.4
ALP210 70 210 194 169 95 1.7 21.8
ALP285 57 285 265 230 95 2.4 29.1
ALP399 80 399 377 328 94.1 94.5 3.4 41.8
* Add Sufx “N” for Natural Gas or Sufx “P” for LP Gas Models.
Notes: ** DOE Heating Capacity (ALP080 thru ALP285); Gross Output (ALP399)
Maximum Working Pressure, Water - 30 PSI Shipped from Factory (std.); 50 PSI - Optional
Maximum Allowable Temperature, Water - 210°F
Boilers are factory shipped as Natural Gas builds and have to be eld adjusted for LP gas application. Refer to ‘System Start-
Up Section of this manual for detailed procedure.
For elevations above 2000 Feet, ratings should be reduced at the rate of four percent (4%) for each 1000 Feet above sea level.
Alpine Series Gas-Fired Boilers
* Model
Number
Input
(MBH)
** Output
(MBH)
Net I=B=R
Ratings
Water (MBH)
AFUE
%
Thermal
Efciency
(%)
Combustion
Efciency (%)
Boiler Water
Volume
(Gal.)
Heat Transfer
Area
(Sq. Ft.)
Min. Max.
ALP080 16 80 73 63 95 0.6 7.3
ALP105 21 105 96 83 95 0.7 9.1
ALP150 30 150 138 120 95 1.3 16.4
ALP210 42 210 194 169 95 1.7 21.8
ALP285 57 285 265 230 95 2.4 29.1
ALP399 80 399 377 328 94.1 94.5 3.4 41.8
* Add Sufx “N” for Natural Gas or Sufx “P” for LP Gas Models.
Notes: ** DOE Heating Capacity (ALP080 thru ALP285); Gross Output (ALP399)
Maximum Working Pressure, Water - 30 PSI Shipped from Factory (std.); 50 PSI - Optional (ALP080 thru ALP285)
Maximum Working Pressure, Water - 50 PSI Shipped from Factory (std.); (ALP399)
Maximum Allowable Temperature, Water - 210°F
Boilers are factory shipped as Natural Gas builds and have to be eld adjusted for LP gas application. Refer to ‘System Start-
Up Section of this manual for detailed procedure.
Ratings shown are for installations at sea level and elevations up to 2000 Feet. For elevations above 2000 Feet, ratings should be
reduced at the rate of four percent (4%) for each 1000 Feet above sea level.