Ratings And Capacities - UTICA BOILERS SSC UBSSC-075 Installation Operation & Maintenance

Table 13 - Sea Level Ratings
Size
050
075
100
150
200
299
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 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
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 Rating, Water
(MBH)
(1)(2)
46
69
91
139
185
273
46
Net AHRI
AFUE
(MBH)
(1)(3)
40 95.0
60 95.0
79 95.0
121 95.0
161 94.0
239 94.0
(2)