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OV500 SERIES RACK OVEN - SERVICE PROCEDURES AND ADJUSTMENTS
NOTE: The following chart is for reference only. If the manifold pressure must be adjusted to accommodate the
altitude you must contact Bakery Product Support for a corrected data plate and orifice part number.
ALTITUDE CORRECTION CHART
ELEVATION
IN FT.
OV500G1 OV500G1 OV500G2 OV500G2
Natural Gas Propane Gas Natural Gas Propane Gas
Orifice #53
Orifice Dia. 0.0595
Orifice #63
Orifice Dia. 0.037
Orifice #49
Orifice Dia. 0.073
Orifice #56
Orifice Dia. 0.046
Oven
Rating
BTU/Hr
Manifold
Pressure
“ W.C.
Oven
Rating
BTU/Hr
Manifold
Pressure
“W.C.
Oven
Rating
BTU/Hr
Manifold
Pressure
“W.C.
Oven
Rating
BTU/Hr
Manifold
Pressure
“W.C.
0
(sea level)
180,000 3.5 180,000 10.0 300,000 3.0 300,000 8.0
3000 158,400 2.7 158,400 7.7 300,000 3.0 300,000 8.0
3500 154,800 2.6 154,800 7.3 300,000 3.0 300,000 8.0
4000 151,200 2.4 151,200 7.0 294,000 2.7 294,000 7.4
4500 147,600 2.3 147,600 6.7 287,000 2.6 287,000 7.1
5000 144,000 2.2 144,000 6.4 280,000 2.5 280,000 6.7
5500 140,400 2.1 140,400 6.0 273,000 2.4 273,000 6.4
6000 136,800 2.0 136,800 5.7 266,000 2.2 266,000 6.1
ORIFICE DIA. MUST CHANGE 6500 FT. ABOVE SEA LEVEL
Orifice #55
Orifice Dia. 0.052
Orifice #66
Orifice Dia. 0.033
Orifice #52
Orifice Dia. 0.0635
Orifice #60
Orifice Dia. 0.04
6500 133,200 3.2 133,200 8.6 259,000 3.7 259,000 10.1
7000 129,600 3.1 129,600 8.1 252,000 3.5 252,000 9.5
7500 126,000 2.9 126,000 7.7 245,000 3.3 245,000 9.0
8000 122,400 2.7 122,400 7.3 238,000 3.1 238,000 8.5
8500 118,800 2.6 118,800 6.8 231,000 2.9 231,000 8.0
9000 115,200 2.4 115,200 6.4 224,000 2.8 224,000 7.5
9500 111,600 2.3 111,600 6.0 217,000 2.6 217,000 7.1
10,000 108,000 2.1 108,000 5.7 210,000 2.4 210,000 6.6
F25361 (January 2010) Page 36 of 60