Carrier 58UVB series Installation, Start-Up, And Operating Instructions Manual page 45

TABLE 11 — ORIFICE SIZE* AND MANIFOLD PRESSURES FOR GAS INPUT RATE
(TABULATED DATA BASED ON 20,000 BTUH HIGH- -HEAT/13,000 BTUH LOW- -HEAT PER BURNER,
ALTITUDE
RANGE HEAT VALUE
AT ALTITUDE
(ft)
7001
to
8000
8001
to
9000
9001
to
10000
* Orifice numbers shown in BOLD are factory-installed.
DERATED 2%/1,000 FT ABOVE SEA LEVEL) (CONT)
AVG. GAS
0.58
Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
(Btu/cu ft) No. High/Low
650 43 3.8 / 1.6
675 43 3.5 / 1.5
700 44 3.8 / 1.6
725 44 3.5 / 1.5
750 44 3.3 / 1.4
775 45 3.7 / 1.6
800 45 3.5 / 1.5
825 45 3.3 / 1.4
625 43 3.8 / 1.6
650 43 3.5 / 1.5
675 44 3.7 / 1.6
700 44 3.5 / 1.5
725 44 3.2 / 1.4
750 45 3.7 / 1.5
775 45 3.4 / 1.5
600 43 3.8 / 1.6
625 43 3.5 / 1.5
650 44 3.7 / 1.6
675 44 3.4 / 1.4
700 44 3.2 / 1.3
725 45 3.6 / 1.5
A97386
SPECIFIC GRAVITY OF NATURAL GAS
0.60 0.62
No. High/Low No.
42 3.2 / 1.4 42
43 3.7 / 1.6 43
43 3.4 / 1.4 43
44 3.6 / 1.5 44
44 3.4 / 1.4 44
44 3.2 / 1.3 44
45 3.6 / 1.5 45
45 3.4 / 1.4 45
42 3.2 / 1.4 42
43 3.6 / 1.5 43
43 3.4 / 1.4 43
44 3.6 / 1.5 44
44 3.4 / 1.4 44
45 3.8 / 1.6 44
45 3.6 / 1.5 45
42 3.2 / 1.4 42
43 3.6 / 1.5 43
44 3.8 / 1.6 43
44 3.5 / 1.5 44
44 3.3 / 1.4 44
45 3.7 / 1.6 45
45
0.64
High/Low No. High/Low
3.4 / 1.4 42 3.5 / 1.5
3.8 / 1.6 42 3.2 / 1.4
3.5 / 1.5 43 3.6 / 1.5
3.8 / 1.6 43 3.4 / 1.4
3.5 / 1.5 44 3.6 / 1.5
3.3 / 1.4 44 3.4 / 1.4
3.7 / 1.6 44 3.2 / 1.4
3.5 / 1.5 45 3.6 / 1.5
3.3 / 1.4 42 3.4 / 1.5
3.8 / 1.6 42 3.2 / 1.3
3.5 / 1.5 43 3.6 / 1.5
3.7 / 1.6 44 3.8 / 1.6
3.5 / 1.5 44 3.6 / 1.5
3.2 / 1.4 44 3.3 / 1.4
3.7 / 1.6 45 3.8 / 1.6
3.3 / 1.4 42 3.4 / 1.4
3.7 / 1.6 43 3.8 / 1.6
3.4 / 1.5 43 3.6 / 1.5
3.7 / 1.5 44 3.8 / 1.6
3.4 / 1.4 44 3.5 / 1.5
3.8 / 1.6 44 3.3 / 1.4