Quantum GAS-FIRED BOILERS Boiler Ratings And Capacities, 7$%/6$/9/5$7,1*61$785$/$13523$1*$66

BOILER RATINGS AND CAPACITIES

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These low pressure gas-fired hot water boilers are design certified by CSA International for use with natural and propane gases. The boilers are constructed and hydrostatically tested for a maximum working pressure of 50 psig (pounds per square inch gage) in accordance with A.S.M.E. (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code Section IV Standards for heating boilers.

++AFUE (Annual Fuel Utilization Efficiency) and Heating Capacity is based on the D.O.E. (Department of Energy) test procedure.

The Boilers are certified in accordance with ANSI (American National Standards Institute) Z21.13 standards as gas-fired, direct vent, condensing, hot water boilers.

The Heating Capacity indicates the amount of heat available after subtracting the losses up the stack. Most of this heat is available to heat water. A small portion is heat from the jacket and surfaces of the boiler, and it is assumed that this heat stays in the structure. The Net I=B=R Rating represents the portion of the remaining heat that can be applied to heat the radiation or terminal units (i.e. finned tube baseboard, cast iron radiators, radiant floor, etc.). The difference between the Heating Capacity and the Net I=B=R Rating, called the piping and pickup allowance, establishes a reserve for heating the volume of water in the system and offsetting heat losses from the piping. The Net I=B R Ratings shown are based on a piping and pickup factor of 1.15 in accordance with the I=B=R Standard as published by the Hydronics Institute. The Net I=B=R Rating of the boiler selected should be greater than or equal to the calculated peak heating load (heat loss) for the building or area(s) served by the boiler and associated hot water heating systems. The manufacturer should be consulted before selecting a boiler for installations having unusual piping and pickup requirements.

BOILERS FOR USE AT HIGH ALTITUDE

The boilers are factory equipped for operation at altitudes ranging from 0-2,000 feet above sea level. For use of these boilers at altitudes above 2,000 feet above sea level, the gas input ratings (MBH) must be reduced.

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