Thermo Pride OH6FA072D48B Installation And Operation Manual page 23

NOZZLE SIZE
(GPH)
UNITS
Beckett
OH6FA060D*** .50
OH6FA072D*** .60
OH6FA090D*** .75
OH8FA101D*** .85
OH8FA119D*** 1.00
OH8FA132D*** 1.10
All rates shown achieved with 120 PSIG pump pressure for Beckett and 140 PSIG pump pressure for
Riello.
* Based on #2 domestic heating fuel oil having heating value of 140,000 BTU per gallon.
** Based on thermal efficiency of 84%-85%.
Riello 2-stage burner specifications and applications (OH6 ONLY):
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".
** NOTE: The reason the Riello burner nozzle sizes are smaller than the standard Thermo Pride burner
nozzles is that pre-set pump pressures are higher, therefore achieving the same firing rate with a smaller
nozzle.
OIL NOZZLE CAPACITY CHART
Riello
.50
.60
.70
.75
.85
1.00
Table 7: Oil nozzle capacity
MODEL
PART
MTG. PLATE
PART NO.
MTG. PLATE
GASKET
PART NO.
**NOZZLE SIZE
NOZZLE
PART NO.
OIL PUMP
PRESSURE
BURNER
BURNER
PART NO.
Table 8: Riello burner application
EQUIVALENT HEAT
INPUT RATE*
(BTU/HR)
70,000
85,000
106,250
119,000
140,000
156,250
OH6 2-STAGE
11700
330212
.70 X 45° W
380702
130 LOW
170 HIGH
G5D
380529
20
EFFECTIVE HEATING
CAPACITY**
(BTU/HR)
60,000
73,000
90,000
101,000
119,000
132,000