Kenmore N8MSL0701412A1 Installation Instructions Manual page 36

80% single stage psc motor category i, gas furnace
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Table 15-Orifice
Size* and Manifold Pressure in. w.c. for Gas Input Rate (Continued)
(Tabulated data based on 22,000 btuh per burner, derated 4 percent for each 1000 ft. (305 M) above sea level)
ALTITUDE
RANGE
FT. (i)
700t to
8000
U.S.A.
(2134 to
2438)
8001 to
9000
U.S.A.
(2438 to
2743)
9001 to
10,000
U.S.A.
(2743 to
3048)
AVG. GAS
SPECIFIC GRAVITY OF NATURAL GAS
HEAT VALUE
0.58
0.60
0.62
0.64
AT ALTITUDE
Orifice
Manifold
Orifice
Manifold
Orifice
Manifold
Orifice
Manifold
(BTU/CU FT.)
No.
Pressure
No.
Pressure
No.
Pressure
No.
Pressure
850
43
3.1
43
3.2
43
3.4
43
3.5
675
43
2.9
43
3.0
43
3.1
43
3.2
700
43
2.7
43
2.8
43
2.9
43
3.0
725
43
2.5
43
2.6
43
2.7
43
2.8
750
43
2.4
43
2.4
43
2.5
43
2.6
775
43
2.2
43
2.3
43
2.4
43
2.4
800
43
2.1
43
2.1
43
2.2
43
2.3
825
48
3.7
43
2.0
43
2.1
43
2.2
625
43
2.9
43
3.0
43
3.1
43
3.2
650
43
2.7
43
2.8
43
2.9
43
3.0
675
43
2.5
43
2.6
43
2.7
43
2.8
700
43
2.3
43
2.4
43
2.5
43
2.6
725
43
2.2
43
2.2
43
2.3
43
2.4
750
43
2.0
43
2.1
43
2.2
43
2.2
600
43
2.7
43
2.8
43
2.9
43
3.0
625
43
2.5
43
2.6
43
2.6
43
2.7
650
43
2.3
43
2.4
43
2.4
43
2.5
675
43
2.1
43
2.2
43
2.3
43
2.3
700
48
3.7
43
2.0
43
2.1
43
2.2
725
48
3.5
48
3.6
48
3.7
43
2.0
775
48
3.6
48
3.7
43
2.0
43
2.1
* Orifice numbers
43 are factory installed.
36
441 01 1402 02

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