Ratings And Capacities - Dunkirk DKVLT-050 Installation, Operation & Maintenance Manual

Size
050
075
100
150
200
1000 Btu/hr (British Thermal Units Per Hour)
(1)
Heating Capacity and AFUE (Annual Fuel Utilization Effi ciency) are based on DOE (Department of Energy) test
(2)
procedures.
Net AHRI Ratings based on piping and pickup allowance of 1.15. Contact Technical Support before selecting boiler for
(3)
installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems,
etc.

12.1 Ratings and Capacities

• Constructed and hydrostatically tested for maximum
allowable working pressure of 50 psig (pounds per
square inch gauge) (345 kPa) in accordance with ASME
Boiler and Pressure Vessel Code, Section IV, Rules for
Construction of Heating Boilers.
• Ratings used for elevations up to 2000 ft (600m) above
sea level.
• For elevations above 2000 ft. (600m) Reduce input rate
4% for each 1000 ft (300m) above sea level.
12 - RATINGS AND CAPACITIES
TABLE 12-1: SEA LEVEL RATINGS
NATURAL AND PROPANE GASES
Boiler Input Rate (MBH)
(1)
Maximum Minimum
50 10
75 15
100 20
150 30
200 40
Net AHRI Rating,
Heating Capacity
(MBH) (1)(2)
46
69
91
139
185
38
Water (MBH) AFUE
(1)(3)
40 96.0
60 96.0
79 96.0
121 96.0
161 96.0
(2)