Carrier 160 Series Installation, Start-Up, Operating And Service And Maintenance Instructions page 43

Table 14 - Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate (Con't.)
(Tabulated Data Based on 22,000 Btuh High-Heat/14,500 Btuh for Low-Heat per Burner, Derated 4 Percent for Each 1000 Ft.
Above Sea Level)
AVG. GAS SPECIFIC GRAVITY OF NATURAL GAS
ALTITUDE HEAT VALUE 0.58 0.60 0.62 0.64
PT nD ATALTITUDE | Orifice | BEM | ontice | SEMUS | oritice | MEMOS | orifice | Pentel'
(BTUH/CUFT) | No. | High/Low No. | High/Low No. | High/Low No. | High/Low
725 43 3.4/1.5 43 3.55 43 3.6/1.6 43 3.7/1.6
5004 to 750 43 3.2/1.4 43 3.3/1.4 43 3.4/1.5 43 3.5/5
6000 775 44 3.4/1.5 44 3.5/1.5 43 3.2/1.4 43 3.3/1.4
Usa | (sea B00 44 3.2/1.4 44 3.3/1.4 44 3.4/1.5 44 3.5/1.5
. B25 46 3.8/1.7 a5 3.8/1.6 44 3.2/1.4 44 3.3/1.4
B50 46 3.6/1.6 46 3.7/1.6 46 3.8/1.7 a5 3.8/1.6
1829) 875 a7 3B/L.7 46 35/15 46 3.6/1.6 46 3.7/1.6
900 a7 3.6/1.6 a7 3.8/1.6 46 3.4/1.5 46 3.5/5
SPECIFIC GRAVITY OF NATURAL GAS
ALTITUDE AVG. GAS 0.58 0.60 0.62 0.64
RANGE HEAT VALUE _ Manifold _ Manifold _ Manifold _ Manifold
FT. (M) AT ALTITUDE Orifice Pressure Orifice Pressure Orifice Pressure Orifice Pressure
(BTUH/CU FT.) No. |) High/Low No. | High/Low No. | High/Low No. | High/Low
675 43 3.4/1.5 43 3.55 43 3.6/1.6 43 3.7/1.6
6001 to 700 44 3.6/1.6 43 3.3/1.4 43 3.4/1.5 43 3.5/5
7000 725 44 3.4/1.5 44 3.5/1.5 44 3.6/1.6 43 3.2/1.4
Usa | (1829 750 a5 3.8/1.7 44 3.3/1.4 44 3.4/1.5 44 3.5/1.5
. 775 46 3.7/1.6 a5 3.7/1.6 a5 3.8/1.7 44 3.2/1.4
B00 46 3.5/5 46 3.6/1.6 46 3.8/1.6 a5 3.7/1.6
2134) 825 a7 3.7.6 46 3.4/1.5 46 35/15 46 3.6/1.6
B50 a7 3.5/5 a7 3.6/1.6 a7 3.8/1.6 46 3.4/1.5
SPECIFIC GRAVITY OF NATURAL GAS
ALTITUDE AVG. GAS 0.58 0.60 0.62 0.64
RANGE HEAT VALUE _ Manifold _ Manifold _ Manifold _ Manifold
FT. (M) AT ALTITUDE Orifice Pressure Orifice Pressure Orifice Pressure Orifice Pressure
(BTUH/CU FT.) No. |) High/Low No. | High/Low No. | High/Low No. | High/Low
650 44 3.6/1.6 43 3.2.4 43 3.4/1.5 43 3.55
7004 to 675 44 3.3/1.5 44 3.5/1.5 44 3.6/1.6 43 3.2/1.4
8000 700 a5 3.8/1.6 44 3.2/1.4 44 3.3/1.4 44 3.4/1.5
Usa | (e134 725 46 3.7/1.6 46 3.8/1.7 a5 3.7/1.6 44 3.2/1.4
. 750 46 3.4/1.5 46 3.6/1.5 46 3.7/1.6 46 3.8/1.6
775 a7 3.6/1.6 a7 3.8/1.6 46 3.4/1.5 46 3.6/1.5
2438) B00 a7 3415 a7 35/15 a7 3.716 a7 3.8/1.6
B25 48 3.7/1.6 48 3.8/1.6 a7 3.4/1.5 a7 3.6/1.5
SPECIFIC GRAVITY OF NATURAL GAS
ALTITUDE AVG. GAS 0.58 0.60 0.62 0.64
RANGE HEAT VALUE ~ Manifold ~ Manifold ~ Manifold ~ Manifold
FT. (M) AT ALTITUDE Orifice Pressure Orifice Pressure Orifice Pressure Orifice Pressure
(BTUH/CU FT.) No. |) High/Low No. | High/Low No. | High/Low No. | High/Low
625 qa 3.3/1.5 qa 3.515 qa 3.6/1.6 43 3.2/1.4
8001 to 650 a5 3.7/1.6 44 3.2/1.4 44 3.3/1.4 44 3.4/1.5
9000 675 46 3.6/1.6 a6 3.8/1.6 a5 3.7/1.6 a5 3.8/1.7
USA | (2438 700 a7 3.8/1.7 46 3.5/1.5 46 3.6/1.6 46 3.7/1.6
to 725 a7 3.6/1.6 a7 3.7/1.6 a7 3.8/1.7 46 35/15
2743) 750 48 3.8/1.7 a7 35/15 a7 3.6/1.6 a7 3.7/1.6
775 48 3.6/1.5 48 3.7/1.6 48 3.8/1.7 a7 35/15
600 a5 3.7/1.6 a5 3.8/1.7 44 3.3/1.4 44 3.4/1.5
9001 to 625 46 3.6/1.6 46 3.7/1.6 a6 3.8/1.7 a5 3.8/1.6
usa | 10,000 650 a7 3.8/1.6 46 3.4/1.5 46 3.6/1.5 46 3.7/1.6
2743 to 675 a7 3.5/1.5 a7 3.6/1.6 a7 3.7/1.6 46 3.4/1.5
3048) 700 48 3.7/1.6 48 3.8/1.7 a7 35/15 a7 3.6/1.6
725 48 35/15 48 3.6/1.6 48 3.7/1.6 48 3.8/1.7
* Orifice numbers 43 are factory installed