International comfort products F9MXT0401410A Service And Technical Support Manual page 9

SERVICE AND TECHNICAL SUPPORT MANUAL
Table 3 Orifice Size and Manifold Pressure (in. w.c.) for Gas Input Rate
(TABULATED DATA BASED ON 20,000 BTUH HIGH-HEAT / 13,000 BTUH LOW-HEAT PER BURNER,
ALTITUDE
A
RANGE
HEAT VALUE
AT ALTITUDE
ft (m)
0
(0)
to
2000
(610)
U.S.A.
2001 (611)
to
3000 (914)
Canada
2001 (611)
to
4500 (1372)
3001
(915)
to
4000
(1219)
4001
(1220)
to
5000
(1524)
5001
(1525)
to
6000
(1829)
6001
(1830)
to
7000
(2133)
440 04 4321 08
TWO-STAGE FURNACE
DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL)
V G . G A S
0.58
Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
(Btu/cu ft) No. High/Low
900 43 3.8 / 1.6
925 43 3.6 / 1.5
950 43 3.4 / 1.4
975 44 3.7 / 1.6
1000 44 3.5 / 1.5
1025 44 3.3 / 1.4
1050 44 3.2 / 1.3
1075 45 3.7 / 1.6
1100 46 3.7 / 1.6
800 42 3.4 / 1.4
825 43 3.8 / 1.6
850 43 3.6 / 1.5
875 43 3.4 / 1.4
900 44 3.7 / 1.6
925 44 3.5 / 1.5
950 44 3.3 / 1.4
975 44 3.2 / 1.3
1000 46 3.8 / 1.6
775 42 3.3 / 1.4
800 43 3.8 / 1.6
825 43 3.6 / 1.5
850 44 3.8 / 1.6
875 44 3.6 / 1.5
900 44 3.4 / 1.4
925 44 3.2 / 1.4
950 45 3.7 / 1.6
750 42 3.3 / 1.4
775 43 3.7 / 1.6
800 43 3.5 / 1.5
825 44 3.8 / 1.6
850 44 3.5 / 1.5
875 44 3.3 / 1.4
900 44 3.2 / 1.3
925 46 3.8 / 1.6
725 42 3.2 / 1.4
750 43 3.7 / 1.5
775 43 3.4 / 1.4
800 44 3.7 / 1.6
825 44 3.5 / 1.5
850 44 3.3 / 1.4
875 45 3.7 / 1.6
900 46 3.7 / 1.6
675 42 3.4 / 1.4
700 42 3.2 / 1.3
725 43 3.6 / 1.5
750 43 3.4 / 1.4
775 44 3.6 / 1.5
800 44 3.4 / 1.4
825 44 3.2 / 1.3
850 46 3.8 / 1.6
Specifications subject to change without notice.
S P E C F I C I G R A V T I Y O F N A T U R
0.60 0.62
No. High/Low No. High/Low
42 3.2 / 1.4 42 3.3 / 1.4
43 3.7 / 1.6 43 3.8 / 1.6
43 3.5 / 1.5 43 3.6 / 1.5
44 3.8 / 1.6 43 3.4 / 1.5
44 3.6 / 1.5 44 3.8 / 1.6
44 3.5 / 1.5 44 3.6 / 1.5
44 3.3 / 1.4 44 3.4 / 1.4
45 3.8 / 1.6 44 3.3 / 1.4
46 3.8 / 1.6 45 3.8 / 1.6
42 3.5 / 1.5 42 3.6 / 1.5
42 3.3 / 1.4 42 3.4 / 1.4
43 3.7 / 1.6 42 3.2 / 1.3
43 3.5 / 1.5 43 3.7 / 1.5
44 3.8 / 1.6 43 3.5 / 1.5
44 3.6 / 1.5 44 3.8 / 1.6
44 3.4 / 1.5 44 3.6 / 1.5
44 3.3 / 1.4 44 3.4 / 1.4
45 3.8 / 1.6 44 3.2 / 1.4
42 3.4 / 1.4 42 3.5 / 1.5
42 3.2 / 1.4 42 3.3 / 1.4
43 3.7 / 1.6 43 3.8 / 1.6
43 3.5 / 1.5 43 3.6 / 1.5
44 3.7 / 1.6 43 3.4 / 1.4
44 3.5 / 1.5 44 3.7 / 1.5
44 3.4 / 1.4 44 3.5 / 1.5
44 3.2 / 1.3 44 3.3 / 1.4
42 3.4 / 1.4 42 3.5 / 1.5
43 3.8 / 1.6 42 3.3 / 1.4
43 3.6 / 1.5 43 3.7 / 1.6
43 3.4 / 1.4 43 3.5 / 1.5
44 3.7 / 1.5 44 3.8 / 1.6
44 3.5 / 1.5 44 3.6 / 1.5
44 3.3 / 1.4 44 3.4 / 1.4
45 3.7 / 1.6 44 3.2 / 1.4
42 3.3 / 1.4 42 3.4 / 1.5
43 3.8 / 1.6 42 3.2 / 1.4
43 3.5 / 1.5 43 3.7 / 1.5
44 3.8 / 1.6 43 3.4 / 1.5
44 3.6 / 1.5 44 3.7 / 1.6
44 3.4 / 1.4 44 3.5 / 1.5
44 3.2 / 1.3 44 3.3 / 1.4
46 3.8 / 1.6 45 3.8 / 1.6
42 3.5 / 1.5 42 3.6 / 1.5
42 3.3 / 1.4 42 3.4 / 1.4
43 3.7 / 1.6 43 3.8 / 1.6
43 3.5 / 1.5 43 3.6 / 1.5
44 3.7 / 1.6 43 3.4 / 1.4
44 3.5 / 1.5 44 3.6 / 1.5
44 3.3 / 1.4 44 3.4 / 1.4
45 3.8 / 1.6 44 3.2 / 1.4
Gas Furnace: (F/G)9MXT
A L G A S
0.64
No. High/Low
42 3.4 / 1.4
42 3.2 / 1.4
43 3.7 / 1.6
43 3.6 / 1.5
43 3.4 / 1.4
44 3.7 / 1.6
44 3.5 / 1.5
44 3.4 / 1.4
44 3.2 / 1.4
42 3.7 / 1.6
42 3.5 / 1.5
42 3.3 / 1.4
43 3.8 / 1.6
43 3.6 / 1.5
43 3.4 / 1.4
44 3.7 / 1.6
44 3.5 / 1.5
44 3.3 / 1.4
42 3.6 / 1.5
42 3.4 / 1.4
42 3.2 / 1.4
43 3.7 / 1.6
43 3.5 / 1.5
44 3.8 / 1.6
44 3.6 / 1.5
44 3.4 / 1.4
42 3.6 / 1.5
42 3.4 / 1.4
43 3.8 / 1.6
43 3.6 / 1.5
43 3.4 / 1.4
44 3.7 / 1.6
44 3.5 / 1.5
44 3.3 / 1.4
42 3.5 / 1.5
42 3.3 / 1.4
43 3.8 / 1.6
43 3.5 / 1.5
44 3.8 / 1.6
44 3.6 / 1.5
44 3.4 / 1.4
44 3.2 / 1.4
42 3.8 / 1.6
42 3.5 / 1.5
42 3.3 / 1.4
43 3.7 / 1.6
43 3.5 / 1.5
44 3.7 / 1.6
44 3.5 / 1.5
44 3.3 / 1.4
A11252A
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