AVG. GAS
SPECIFIC GRAVITY OF NATURAL GAS
HEAT VALUE
0.58
0.60
0.62
0.64
AT ALTITUDE
Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
(Btu/cu ft)
No.
High/Low
No.
High/Low
No.
High/Low
No.
High/Low
TABLE 12 - 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,
DERATED 2%/1000 FT ABOVE SEA LEVEL)
ALTITUDE
RANGE
(ft)
650
43
3.8 / 1.6
42
3.2 / 1.4
42
3.4 / 1.4
42
3.5 / 1.5
7001
675
43
3.5 / 1.5
43
3.7 / 1.6
43
3.8 / 1.6
42
3.2 / 1.4
700
44
3.8 / 1.6
43
3.4 / 1.4
43
3.5 / 1.5
43
3.6 / 1.5
to
725
44
3.5 / 1.5
44
3.6 / 1.5
44
3.8 / 1.6
43
3.4 / 1.4
750
44
3.3 / 1.4
44
3.4 / 1.4
44
3.5 / 1.5
44
3.6 / 1.5
8000
775
45
3.7 / 1.6
44
3.2 / 1.3
44
3.3 / 1.4
44
3.4 / 1.4
800
45
3.5 / 1.5
45
3.6 / 1.5
45
3.7 / 1.6
44
3.2 / 1.4
825
45
3.3 / 1.4
45
3.4 / 1.4
45
3.5 / 1.5
45
3.6 / 1.5
625
43
3.8 / 1.6
42
3.2 / 1.4
42
3.3 / 1.4
42
3.4 / 1.5
8001
650
43
3.5 / 1.5
43
3.6 / 1.5
43
3.8 / 1.6
42
3.2 / 1.3
675
44
3.7 / 1.6
43
3.4 / 1.4
43
3.5 / 1.5
43
3.6 / 1.5
to
700
44
3.5 / 1.5
44
3.6 / 1.5
44
3.7 / 1.6
44
3.8 / 1.6
725
44
3.2 / 1.4
44
3.4 / 1.4
44
3.5 / 1.5
44
3.6 / 1.5
9000
750
45
3.7 / 1.5
45
3.8 / 1.6
44
3.2 / 1.4
44
3.3 / 1.4
775
45
3.4 / 1.5
45
3.6 / 1.5
45
3.7 / 1.6
45
3.8 / 1.6
600
43
3.8 / 1.6
42
3.2 / 1.4
42
3.3 / 1.4
42
3.4 / 1.4
9001
625
43
3.5 / 1.5
43
3.6 / 1.5
43
3.7 / 1.6
43
3.8 / 1.6
650
44
3.7 / 1.6
44
3.8 / 1.6
43
3.4 / 1.5
43
3.6 / 1.5
to
675
44
3.4 / 1.4
44
3.5 / 1.5
44
3.7 / 1.5
44
3.8 / 1.6
700
44
3.2 / 1.3
44
3.3 / 1.4
44
3.4 / 1.4
44
3.5 / 1.5
10000
725
45
3.6 / 1.5
45
3.7 / 1.6
45
3.8 / 1.6
44
3.3 / 1.4
U
.S.A.
Onl
y
* Orifice numbers shown inBOLD are factory-installed.
U
.S.A.
Onl
y
U
.S.A.
Onl
y
—46—
Содержание CONDENSING GAS FURNACE 355MAV
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