37
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):
•
USA - Reduce input rate 4% for each 1000 ft
•
(300m) above sea level.
Canada - Boiler certifi ed for altitudes of 0-4500 feet
•
(1350 m) above sea level. Contact Provincial
authority having jurisdiction for installations above
4500 feet (1350 m) above sea level.
TABLE 12-1: SEA LEVEL RATINGS
NATURAL AND PROPANE GASES
Size
Boiler Input Rate (MBH)
(1)
Heating Capacity
(MBH)
(1)(2)
Net I=B=R Rating,
Water (MBH)
(1)(3)
AFUE
(2)
Maximum
Minimum
050
50
10
46
40
96.0
075
75
15
69
60
96.0
100
100
20
91
79
96.0
150
150
30
139
121
96.0
200
200
40
185
161
96.0
(1)
1000
Btu/hr (British Thermal Units Per Hour)
(2)
Heating Capacity and AFUE (Annual Fuel Utilization Effi ciency) are based on DOE (Department of Energy) test
procedures.
(3)
Net I=B=R Ratings based on piping and pickup allowance of 1.15. Contact Technical Support before selecting boiler for
installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems,
etc.
12 - RATINGS AND CAPACITIES
Summary of Contents for OLSSC-075
Page 45: ...45 13 TROUBLE SHOOTING...
Page 52: ...52 14 WIRING DIAGRAM 14 1 Connection Diagram...
Page 53: ...53 14 WIRING DIAGRAM 14 2 Schematic Diagram of Ladder Form...
Page 70: ...70 NOTES...
Page 71: ...71 Date Service Performed Company Name Tech Initials Company Address Phone...
Page 72: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13504 4729 web site www ecrinternational com...
