Gas Heater User Manual

13
CHECKING INPUT RATE
Pilot Orifice Identity Numbers
Pilot Burner Identity No. Identity No.
Manufacturer Natural Gas Propane Gas
Honeywell BCR-18 BCR-11 or -12
Robertshaw
Johnson 7715 4710
1 8
N
➁
1 O
P
L
➁ As number appears on top of pilot orifice.
Table 6
Orifice Drill sizes with Decimal Equivalents
Main Burner Orifices
Dia. Dia.
Drill Decimal Drill Decimal
Size Equivalent Size Equivalent
19 .1660 37 .1040
21 .1590 39 .0995
22 .1570 40 .0980
24 .1520 41 .0960
27 .1440 43 .0890
29 .1360 44 .0860
Table 5
Manifold Pressure & Gas Consumption
➀
Natural Propane
Typical Heating Value (BTU/Cu.Ft.) 1040 2500 No. of
Model Specific Gravity 0.60 1.53 Orifices
Manifold Pressure inches w.c. 3.5 10.0
Cfh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 52
P
SH130
Gal/Hr. Propane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — 1.42
B
SH130
Sec/cu.ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 69 2
Orifice Drill Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 41
Cfh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 60
P
SH150
Gal/Hr. Propane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — 1.64
B
SH150
Sec/cu.ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 60 3
Orifice Drill Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 44
Cfh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 68
P
SH170
Gal/Hr. Propane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — 1.86
B
SH170
Sec/cu. ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 60 3
Orifice Drill Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 43
Cfh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 90
P
SH225
Gal/Hr. Propane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — 2.46
B
SH225
Sec/cu.ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 40 3
Orifice Drill Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 37
Cfh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269 112
P
SH280
Gal/Hr. Propane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — 3.06
B
SH280
Sec/cu. ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 32 4
Orifice Drill Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 39
Cfh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 136
P
SH340
Gal/Hr. Propane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — 3.72
B
SH340
Sec/cu. ft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 26 5
Orifice Drill Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 40
➀ Above gases based on average standards. Units can be furnished for gases of different values and specific gravities. (Gas/Hr. Propane based on 60°F, 30" Hg, 91,500
Btu/Gal.
➁
Heater Parts from ACF Greenhouses