ECR UTICA BOILERS SVB II Series, Installation, Operation & Maintenance Manual

3

New York City MEA Number 484-84-E Vol. IV.

BOILER RATINGS & CAPACITIES

Table 1  -  RATINGS NATURAL AND PROPANE GASES

Model

Input 

*Mbh

Heating 

Capacity 

*Mbh

**Net 

AHRI Rating Water 

*Mbh

AFUE

Vent Diameter (Inches)

To Chimney

(Category I)

Horizontal Vent

(Category III)

SVB-2

42.5

36

31

84.4

4

3

SVB-3

75.0

63

55

83.4

4

3

SVB-4

112.5

94

82

83.0

4

3

SVB-5

150.0

125

109

82.7

4

3

SVB-6

187.5

155

135

82.3

4

4

SVB-7

225.0

186

162

82.0

4

4

* MBH = 1,000 Btuh = British Thermal Unit Per Hour.  Boilers are equipped for altitudes up to 2,000 feet only.  U.S.A.    

Only - For altitudes above 2,000 feet, ratings should be reduced at the rate of 4% for each 1,000 feet above  

sea level.  Canada Only - Boilers may be used at high altitude (2,000-4500 feet/640-1350m) by using a certifi ed  

fi eld conversion kit, resulting in a 10% de-rate. Contact Provincial authority having jurisdiction for installations  

above 4500 ft (1350m)above sea level.+ Heating Capacity based on D.O.E. (Department of Energy) test  

 procedure.

**Net AHRI Water Ratings i

ndicate amount of remaining heat input that can be used to heat the radiation  

    or terminal units. Net AHRI Ratings shown are based on an allowance of 1.15  Selection of  

    boiler size should be based upon “Net AHRI Rating” being equal to or greater than calculated      

    heat loss of building.

    Manufacturer should be consulted before selecting a boiler for installations having unusual piping  

    and pickup requirements.

This boiler cannot be used with all types of chimneys. Read these instructions carefully before installing.
These Gas-Fired Hot Water Boilers are low pressure, sectional cast iron boilers Design Certi

fi

 ed by C.S.A. (Canadian 

Standards Association) for use with Natural and Propane Gases. Constructed and hydrostatically tested for maximum 

working pressure of 50 psi in accordance with A.S.M.E. Boiler and Pressure Vessel Code Section IV Standards for cast iron 

heating boilers.
Boilers must stand on noncombustible 

fl

 oor. If installed on combustible 

fl

 oor, please refer to Repair Parts manual for 

appropriate Combustible Floor Base part number. 

Boilers For Use At High Altitude

Boiler is factory equipped for use at altitudes of 0-2,000 feet above sea level. For use at altitudes above 2,000 feet above 

sea level, input ratings are reduced by change in main burner ori

fi

 ce size. 

U.S.A. 

For altitudes above 2,000 feet above sea 

level, input ratings should be reduced at rate of 4% for each 1,000 feet above sea level. Consult National Fuel Gas Code 

(NFPA54/ANSI Z223.1), or manufacturer for correct ori

fi

 ce sizing information. High altitude ori

fi

 ces are available from 

boiler manufacturer.