Carrier 140/E Series Installation, Start--Up, Operating, And Service And Maintenance page 42

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Table 16 - Orifice Size* and Manifold Pressures (In. W.C.) for Gas Input Rate
(TABULATED DATA BASED ON 21,000 BTUH HIGH-HEAT / 14,500 BTUH LOW-HEAT PER BURNER,
DERATED 4%/1000 FT (305M) ABOVE SEA LEVEL)
ALTITUDE AVG. GAS SPECIFIC GRAVITY OF NATURAL GAS
RANGE HEAT VALUE 0.58 0.60 0.62
AT ALTITUDE Orifice MnfldPress Orifice MnfldPress Orifice MnfldPress
ft (m) IBtu/cu ft) No. ai_lh/Low No. ai_lh/Low No. ai_lh/Low
900 42 3.2 / 1.5 42 3.3 / 1.6 42 3.4 / 1.6
0 925 43 3.7 / 1.8 43 3.8 / 1.8 42 3.2 / 1.5
(0) 950 43 3.5 / 1.7 43 3.6 / 1.7 43 3.7 / 1.8
975 43 3.3 / 1.6 43 3.4 / 1.6 43 3.5 / 1.7
to 1000 44 3.6 / 1.7 43 3.3 / 1.6 43 3.4 / 1.6
1025 44 3.4 / 1.6 44 3.6 / 1.7 43 3.2 / 1.5
2000 1050 44 3.3 / 1.6 44 3.4 / 1.6 44 3.5 / 1.7
(610) 1075 45 3.8 / 1.8 44 3.2 / 1.5 44 3.3 / 1.6
1100 46 3.8 / 1.8 45 3.7 / 1.8 44 3.2 / 1.5
800 43 3.8 / 1.8 42 3.2 / 1.5 42 3.3 / 1.6
825 43 3.5 / 1.7 43 3.7 / 1.7 43 3.8 / 1.8
850 43 3.3 / 1.6 43 3.5 / 1.6 43 3.6 / 1.7
2001 (611) 875 43 3.2 / 1.5 43 3.3 / 1.6 43 3.4 / 1.6
to
900 44 3.4 / 1.6 44 3.5 / 1.7 43 3.2 / 1.5
3000 (914) 925 44 3.2 / 1.5 44 3.3 / 1.6 44 3.5 / 1.6
950 45 3.7 / 1.8 45 3.8 / 1.8 44 3.3 / 1.6
975 46 3.7 / 1.8 46 3.8 / 1.8 45 3.8 / 1.8
1000 46 3.5 / 1.7 46 3.6 / 1.7 46 3.8 / 1.8
775 43 3.5 / 1.7 43 3.7 / 1.7 43 3.8 / 1.8
3001 800 43 3.3 / 1.6 43 3.4 / 1.6 43 3.5 / 1.7
(915) 825 44 3.6 / 1.7 43 3.2 / 1.5 43 3.3 / 1.6
850 44 3.4 / 1.6 44 3.5 / 1.7 44 3.6 / 1.7
to
875 45 3.8 / 1.8 44 3.3 / 1.6 44 3.4 / 1.6
4000 900 46 3.8 / 1.8 45 3.8 / 1.8 44 3.2 / 1.5
(1219) 925 46 3.6 / 1.7 46 3.7 / 1.8 45 3.7 / 1.8
950 46 3.4 / 1.6 46 3.5 / 1.7 46 3.7 / 1.7
750 43 3.3 / 1.6 43 3.4 / 1.6 43 3.5 / 1.7
4001 775 44 3.6 / 1.7 43 3.2 / 1.5 43 3.3 / 1.6
(1220) 800 44 3.3 / 1.6 44 3.4 / 1.6 44 3.6 / 1.7
825 45 3.8 / 1.8 44 3.2 / 1.5 44 3.4 / 1.6
to
850 46 3.8 / 1.8 45 3.7 / 1.8 45 3.8 / 1.8
5000 875 46 3.5 / 1.7 46 3.7 / 1.7 46 3.8 / 1.8
(1524) 900 47 3.8 / 1.8 46 3.5 / 1.7 46 3.6 / 1.7
925 47 3.6 / 1.7 47 3.7 / 1.8 47 3.8 / 1.8
725 44 3.5 / 1.7 43 3.2 / 1.5 43 3.3 / 1.6
5001 750 44 3.3 / 1.6 44 3.4 / 1.6 44 3.5 / 1.7
(1525) 775 45 3.7 / 1.8 44 3.2 / 1.5 44 3.3 / 1.6
800 46 3.7 / 1.8 46 3.8 / 1.8 45 3.8 / 1.8
to
825 46 3.5 / 1.7 46 3.6 / 1.7 46 3.7 / 1.8
6000 850 47 3.7 / 1.8 47 3.8 / 1.8 46 3.5 / 1.7
(1829) 875 47 3.5 / 1.7 47 3.6 / 1.7 47 3.7 / 1.8
900 48 3.8 / 1.8 47 3.4 / 1.6 47 3.5 / 1.7
675 44 3.5 / 1.7 43 3.2 / 1.5 43 3.3 / 1.6
6001 700 44 3.3 / 1.6 44 3.4 / 1.6 44 3.5 / 1.7
(1830) 725 45 3.7 / 1.8 45 3.8 / 1.8 44 3.3 / 1.6
750 46 3.6 / 1.7 46 3.8 / 1.8 45 3.7 / 1.8
to
775 46 3.4 / 1.6 46 3.5 / 1.7 46 3.6 / 1.7
7000 800 47 3.6 / 1.7 47 3.8 / 1.8 46 3.4 / 1.6
(2133) 825 47 3.4 / 1.6 47 3.5 / 1.7 47 3.6 / 1.7
850 48 3.7 / 1.7 48 3.8 / 1.8 47 3.4 / 1.6
0.64
Orifice Mnfld Press
No. Hi_h/Low
42 3.5 / 1.7
42 3.3 / 1.6
43 3.8 / 1.8
43 3.7 / 1.7
43 3.5 / 1.7
43 3.3 / 1.6
43 3.2 / 1.5
44 3.4 / 1.6
44 3.3 / 1.6
42 3.4 / 1.6
42 3.2 / 1.5
43 3.7 / 1.8
43 3.5 / 1.7
43 3.3 / 1.6
44 3.6 / 1.7
44 3.4 / 1.6
44 3.2 / 1.5
45 3.7 / 1.8
42 3.2 / 1.5
43 3.7 / 1.7
43 3.4 / 1.6
43 3.2 / 1.5
44 3.5 / 1.7
44 3.3 / 1.6
45 3.8 / 1.8
46 3.8 / 1.8
43 3.6 ! 1.7
43 3.4 / 1.6
43 3.2 / 1.5
44 3.5 / 1.6
44 3.3 / 1.6
45 3.7 / 1.8
46 3.7 / 1.8
46 3.5 / 1.7
43 3.4 / 1.6
43 3.2 / 1.5
44 3.4 / 1.6
44 3.2 / 1.5
46 3.8 / 1.8
46 3.6 / 1.7
46 3.4 / 1.6
47 3.7 / 1.7
43 3.4 / 1.6
43 3.2 / 1.5
44 3.4 / 1.6
45 3.8 / 1.8
46 3.8 / 1.8
46 3.5 / 1.7
47 3.8 / 1.8
47 3.5 / 1.7
A10185
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