Carrier Series 100 Installation, Start-up, And Operating Instructions Manual

Also see for 58MXB Series: User's information manual Owner's manual

Table 13—Model 58MXB Orifice Size and Manifold Pressure for Correct Input (Continued)For Use with 040 through 120 Size Furnaces Only(Tabulated Data Based on 20,000 Btuh per Burner, Derated 2% for Each 1000 Ft Above Sea Level) *ALTITUDERANGE(FT)AVG GASHEAT VALUEAT ALTITUDE(BTU/CU FT)SPECIFIC GRAVITY OF NATURAL GAS0.58 0.60 0.62 0.64 0.66OrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureU.S.A. Only625 43 3.8 42 3.3 42 3.4 42 3.5 42 3.6650 43 3.5 43 3.7 43 3.8 42 3.2 42 3.3675 44 3.8 43 3.4 43 3.5 43 3.6 43 3.77001 700 44 3.5 44 3.6 44 3.8 43 3.4 43 3.5725 44 3.3 44 3.4 44 3.5 44 3.6 44 3.7to 750 45 3.7 45 3.8 44 3.3 44 3.4 44 3.5775 45 3.5 45 3.6 45 3.7 45 3.8 44 3.38000 800 45 3.3 45 3.4 45 3.5 45 3.6 45 3.715% 825 45 3.1 45 3.2 45 3.3 45 3.4 45 3.5derate 850 45 2.9 45 3.0 45 3.1 45 3.2 45 3.3ALTITUDERANGE(Ft)Avg GASHEAT VALUEAT ALTITUDE(Btu/cu ft)SPECIFIC GRAVITY OF NATURAL GAS0.58 0.60 0.62 0.64 0.66OrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureU.S.A. Only600 43 3.8 42 3.3 42 3.4 42 3.5 42 3.6625 43 3.5 43 3.6 43 3.8 42 3.2 42 3.38001 650 44 3.7 43 3.4 43 3.5 43 3.6 43 3.7675 44 3.5 44 3.6 44 3.7 44 3.8 43 3.4to 700 44 3.2 44 3.3 44 3.4 44 3.6 44 3.7725 45 3.6 45 3.8 44 3.2 44 3.3 44 3.49000 750 45 3.4 45 3.5 45 3.6 45 3.8 44 3.217% 775 45 3.2 45 3.3 45 3.4 45 3.5 45 3.6derate 800 45 3.0 45 3.1 45 3.2 45 3.3 45 3.4ALTITUDERANGE(ft)Avg GASHEAT VALUEAT ALTITUDE(Btu/cu ft)SPECIFIC GRAVITY OF NATURAL GAS0.58 0.60 0.62 0.64 0.66OrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureOrificeNo.ManifoldPressureU.S.A. Only575 43 3.8 42 3.2 42 3.3 42 3.5 42 3.6600 43 3.5 43 3.6 43 3.7 42 3.2 42 3.39001 625 44 3.7 44 3.8 43 3.5 43 3.6 43 3.7650 44 3.4 44 3.5 44 3.7 44 3.8 43 3.4to 675 45 3.8 44 3.3 44 3.4 44 3.5 44 3.6700 45 3.6 45 3.7 45 3.8 44 3.3 44 3.410,000 725 45 3.3 45 3.4 45 3.6 45 3.7 45 3.819% 750 45 3.1 45 3.2 45 3.3 45 3.4 45 3.5derate 775 45 2.9 45 3.0 45 3.1 45 3.2 45 3.3Orifice numbers 45 shown in BOLD are factory installed.Percents of derate are based on midpoints of U.S. altitude ranges.50