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

Size
050
075
100
150
200
299
1000 Btu/hr (British Thermal Units Per Hour)
(1)
Heating Capacity and AFUE (Annual Fuel Utilization Efficiency) 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 150 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 use for elevations up to 2000 ft (600m) above sea
level. (Table 14)
• For elevations between 2000 ft (600m) and 4500 ft
(1350m), install high altitude control kit
• For elevations above 4500 ft (1350m) install high altitude
control kit and :
• USA - Reduce input rate 4% for each 1000 ft (300m)
beyond 4500 ft.
• Canada - Contact Provincial authority having jurisdiction
for installations above 4500 feet (1350 m) above sea
level.
12 - RATINGS AND CAPACITIES
TABLE 14: SEA LEVEL RATINGS
NATURAL AND PROPANE GASES
Boiler Input Rate (MBH)
(1)
Maximum Minimum
50 10
75 15
100 20
150 30
200 40
299 60
Heating Capacity
(MBH)
(1)(2)
46
69
91
139
185
273
49
Net AHRI Rating,
Water (MBH) AFUE
(1)(3)
40 95.0
60 95.0
79 95.0
121 95.0
161 95.0
239 95.0
P/N 240011326, Rev. B [04/15/2016]
(2)