Carrier 160 Series - Page 44

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Table 15 — Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate
(Tabulated Data Based on 21,000 Btuh High-Heat/14,500 Btuh for Low-Heat Per Burner, Derated 4 Percent for Each 1000 Ft.
(305 M) Above Sea level)
SPECIFIC GRAVITY OF NATURAL GAS
AVG. GAS
ALTITUDE RANGE HEAT VALUE 0.58 0.60 0.62 0.64
FT. (M) (BTUH/CU Onif Manifold Onif Manifold Onif Manifold Onif Manifold
FT.) N ice Pressure N ice Pressure N ice Pressure N ice Pressure
°. High/Low °. High/Low °. High/Low °. High/Low
900 42 3.2/1.5 42 3.3/1.6 42 3.4/1.6 42 3.5/4.7
925 43 3.7/1.8 43 3.8/1.8 42 3.2/1.5 42 3.3/1.6
950 43 3.5/4.7 43 3.6/1.7 43 3.7/1.8 43 3.8/1.8
0 to 975 43 3.3/1.6 43 3.4/1.6 43 3.5/4.7 43 3.7/4.7
USA 2000 74000 44 3.6/1.7 43 3.3/1.6 43 3.4/1.6 43 3.5/4.7
(0 to 610) 1025 44 3.4/1.6 44 3.6/1.7 43 3.2/1.5 43 3.3/1.6
1050 44 3.3/1.6 44 3.4/1.6 44 3.5/4.7 43 3.2/1.5
1075 45 3.8/1.8 44 3.2/1.5 44 3.3/1.6 44 3.4/1.6
1100 46 3.8/1.8 45 3.7/1.8 44 3.2/1.5 44 3.3/1.6
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60 0.62 0.64
AVG. GAS - - - -
ALTITUDE RANGE HEAT VALUE Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold
FT. (M) (BTUH/CU FT) No Pressure No Pressure No Pressure No Pressure
. . High/Low . High/Low . High/Low . High/Low
800 43 3.8/1.8 42 3.2/1.5 42 3.3/1.6 42 3.4/1.6
825 43 3.5/4.7 43 3.7/4.7 43 3.8/1.8 42 3.2/1.5
850 43 3.3/1.6 43 3.5/1.6 43 3.6/1.7 43 3.7/1.8
2001 to 875 4B 3.2/1.5 4 3.3/1.6 4 3.4/1.6 4 3.5/1.7
USA | 3000 (610 900 44 3.4/1.6 44 3.5/1.7 483 3.2/4.5 483 3.3/1.6
to 914) 925 44 3.2/1.5 44 3.3/1.6 44 3.5/1.6 44 3.6/1.7
950 45 3.7/1.8 45 3.8/1.8 44 3.3/1.6 44 3.4/1.6
975 46 3.7/1.8 46 3.8/1.8 45 3.8/1.8 44 3.2/1.5
74000 46 3.5/4.7 46 3.6/1.7 46 3.8/1.8 45 3.7/1.8
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60 0.62 0.64
AVG. GAS - - - -
ALTITUDE RANGE HEAT VALUE Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold
FT. (M) (BTUH/CU FT) No Pressure No Pressure No Pressure No Pressure
. . High/Low . High/Low . High/Low . High/Low
775 43 3.5/4.7 43 3.7/4.7 43 3.8/1.8 42 3.2/1.5
800 43 3.3/1.6 43 3.4/1.6 43 3.5/1.7 43 3.7/4.7
3001 to 825 44 3.6/1.7 43 3.2/1.5 43 3.3/7.6 43 3.4/1.6
USA 4000 (914 850 44 3.4/1.6 44 3.5/4.7 44 3.6/1.7 43 3.2/1.5
875 45 3.8/1.8 44 3.3/7.6 44 3.4/1.6 44 3.5/4.7
to 1219) 900 46 3.8/1.8 25 3.8/1.8 aa 3.2/1 5 aa 3.3/1.6
925 46 3.6/1.7 46 3.7/1.8 45 3.7/1.8 45 3.8/1.8
950 46 3.4/1.6 46 3.5/4.7 46 3.7/4.7 46 3.8/1.8
SPECIFIC GRAVITY OF NATURAL GAS
0.58 0.60 0.62 0.64
AVG. GAS - - - -
ALTITUDE RANGE HEAT VALUE Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold
FT. (M) (BTUH/CU FT) No Pressure No Pressure No Pressure No Pressure
. . High/Low . High/Low . High/Low . High/Low
750 43 3.3/7.6 43 3.4/1.6 43 3.5/4.7 43 3.6/1.7
775 44 3.6/1.7 43 3.2/1.5 43 3.3/7.6 43 3.4/1.6
4001 to 800 44 3.3/7.6 44 3.4/1.6 44 3.6/1.7 43 3.2/1.5
USA 5000 825 45 3.8/1.8 44 3.2/1.5 44 3.4/1.6 44 3.5/1.6
(1219 to 850 46 3.8/1.8 45 3.7/1.8 45 3.8/1.8 44 3.3/1.6
1524) 875 46 3.5/4.7 46 3.7/4.7 46 3.8/1.8 45 3.7/1.8
900 47 3.8/1.8 46 3.5/4.7 46 3.6/1.7 46 3.7/1.8
925 47 3.6/1.7 47 3.7/1.8 47 3.8/1.8 46 3.5/4.7
* Orifice numbers 43 are factory installed
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