Carrier 59MN7B Installation, Start-Up, Operating And Service And Maintenance Instructions page 77

Table 19- - Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate (Continued)
To Be Used with Modulating Furnaces Except 59MN7B060C21- -20
(TABULATED DATA BASED ON 20,000 BTUH MAX-HEAT / 8,000 BTUH MIN-HEAT PER BURNER,
ALTITUDE
A V
RANGE
HEAT VALUE
AT ALTITUDE
ft (m)
(Btu/cu ft)
7001
(2134)
to
8000
(2438)
8001
(2439)
to
9000
(2743)
9001
(2744)
to
10000
(3048)
* Orifice numbers shown in BOLD are factory-installed.
MODULATING FURNACE
DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL)
G . G A S
0.58
Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
No. Max/Min
650 42 3.4 /0.55
675 43 3.8 /0.60
700 43 3.5 /0.55
725 44 3.8 /0.60
750 44 3.5 /0.55
775 44 3.3 /0.55
800 45 3.8 /0.60
825 46 3.7 /0.60
625 42 3.4 /0.55
650 43 3.8 /0.60
675 43 3.5 /0.55
700 44 3.7 /0.60
725 44 3.5 /0.55
750 44 3.3 /0.50
775 45 3.7 /0.60
600 42 3.3 /0.55
625 43 3.7 /0.60
650 43 3.5 /0.55
675 44 3.7 /0.60
700 44 3.4 /0.55
725 44 3.2 /0.50
S P E C F I C I G R A V T I Y O F N A
0.60
No. Max/Min No.
42 3.5 /0.55 42
42 3.2 /0.50 42
43 3.7 /0.60 43
43 3.4 /0.55 43
44 3.7 /0.60 44
44 3.4 /0.55 44
44 3.2 /0.50 44
46 3.8 /0.60 45
42 3.5 /0.55 42
42 3.2 /0.50 42
43 3.6 /0.60 43
43 3.4 /0.55 43
44 3.6 /0.60 44
44 3.4 /0.55 44
44 3.2 /0.50 44
42 3.4 /0.55 42
42 3.2 /0.50 42
43 3.6 /0.55 43
44 3.8 /0.60 43
44 3.5 /0.55 44
44 3.3 /0.55 44
77
T U R A L G A S
0.62 0.64
Max/Min No. Max/Min
3.6 /0.60 42 3.7 /0.60
3.3 /0.55 42 3.4 /0.55
3.8 /0.60 42 3.2 /0.50
3.5 /0.55 43 3.6 /0.60
3.8 /0.60 43 3.4 /0.55
3.5 /0.55 44 3.7 /0.60
3.3 /0.55 44 3.4 /0.55
3.8 /0.60 44 3.2 /0.50
3.6 /0.55 42 3.7 /0.60
3.3 /0.55 42 3.4 /0.55
3.7 /0.60 42 3.2 /0.50
3.5 /0.55 43 3.6 /0.55
3.7 /0.60 44 3.8 /0.60
3.5 /0.55 44 3.6 /0.55
3.3 /0.50 44 3.4 /0.55
3.6 /0.55 42 3.7 /0.60
3.3 /0.55 42 3.4 /0.55
3.7 /0.60 43 3.8 /0.60
3.4 /0.55 43 3.5 /0.55
3.7 /0.60 44 3.8 /0.60
3.4 /0.55 44 3.5 /0.55
A11251B