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THE NOZZLE SIZE GIVES THE NOMINAL FLOWRATE, IN GPH, FOLLOWED BY THE SPRAY
ANGLE, IN DEGREE’S, AND THE SPRAY PATTERN, EITHER “H” FOR HOLLOW CONE OR “S”
FOR SOLID CONE. FOR EXAMPLE, A NOZZLE RATED AT 0.65 GPH @ 100 PSIG THAT PROVIDES
AN 80° SPRAY ANGLE AND A HOLLOW SPRAY PATTERN WOULD BE ABBREVIATED IN THE
TABLE AS “0.65 X 80
°
H”.
For more specific burner information, contact:
Thermo Products Tech Service Department
Table 4: Oil nozzle capacity
Rate shown achieved with 145 PSIG pump pressure for Riello.
* Based on #2 domestic heating fuel oil having heating value of 140,000 BTU per gallon.
** Based on AFUE of 95%.
*** It is recommended to use Low Sulfur or Ultra Low Sulfur #2 fuel oil or lighter.
For more specific burner information, specifications or service information, reference the training manual
enclosed with each Riello burner or contact:
Riello Corporation of America,
5 Pond Park Road Hingham, Massachusetts 02043
Phone: (617) 749-8292
I. OIL TANK AND PIPING:
: All local codes and ordinances take precedence with regard to selection and
installation of oil storage tank and oil supply (and return) lines. In the absence of local codes, all
tanks and lines must be selected and installed according to the instructions in this manual and
the Standard for the Installation of Oil-Burning Equipment, NFPA 31-1997, or the latest edition.
In situations where the oil storage tank is installed at the same level with, or above, the burner, a single oil
supply line run from the oil tank to the burner will usually be adequate. No return line will be required. If
the oil tank is installed below the burner and the lift exceeds approximately 8-ft, an oil supply line and an
oil return line are recommended.
Refer to the Standard for the Installation of Oil-Burning Equipment, NFPA 31-2001, and the oil burner
operating instructions for detailed information on oil storage tank and oil supply/return installation.
NOTICE: We recommend installing a high efficiency oil filter, in the oil supply line, capable of
filtering 10 to 20 micron diameter (or preferable smaller) particles from the fuel.
OIL NOZZLE CAPACITY CHART
UNITS
NOZZLE SIZE
(GPH)
EQUIVALENT HEAT
INPUT RATE*
(BTU/HR)
EFFECTIVE HEATING
CAPACITY**
(BTU/HR)
Riello
OHCFA072DV4R***
.50
75,000 72,000