76
Table 22 – Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate
To Be Used with Modulating Furnaces 59MN7A060V21--20 Only
SAGLARUTANFOYTIVARGCIFICEPSSAG.GVA
HEATVALUE0.580.600.620.64
AT ALTITUDE Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
(Btu/cu ft) No. Max/Min No. Max/Min No. Max/Min No. Max/Min
900 42 3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42 3.5 /0.55
092543 3.7 /0.55 43 3.8 /0.60 42 3.2 /0.50 42 3.3 /0.50
(0) 950 43 3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60 43 3.8 /0.60
975 44 3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55 43 3.6 /0.55
to 1000 44 3.6 /0.55 44 3.7 /0.60 44 3.8 /0.60 43 3.5 /0.55
1025 44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55 44 3.8 /0.60
2000 1050 44 3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55
(610) 1075 45 3.8 /0.60 44 3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55
1100 46 3.8 /0.60 45 3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50
U.S.A. 800 42 3.4 /0.55 42 3.5 /0.55 42 3.7 /0.55 42 3.8 /0.60
2001 (611) 825 42 3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42 3.6 /0.55
to 850 43 3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50 42 3.3 /0.55
3000 (914) 875 43 3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60 43 3.8 /0.60
900 44 3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55 43 3.6 /0.55
Canada 925 44 3.6 /0.55 44 3.7 /0.60 44 3.8 /0.60 43 3.4 /0.55
2001 (611) 950 44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60
to 975 44 3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55 44 3.6 /0.55
4500 (1372) 1000 45 3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55
775 42 3.4 /0.55 42 3.5 /0.55 42 3.6 /0.55 42 3.7 /0.60
3001 800 42 3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42 3.5 /0.55
(915) 825 43 3.6 /0.55 43 3.7 /0.60 42 3.2 /0.50 42 3.3 /0.50
850
43 3.4 /0.55 43 3.5 /0.55 43 3.6 /0.55 43 3.8 /0.60
875 44 3.7 /0.60 44 3.8 /0.60 43 3.4 /0.55 43 3.6 /0.55
4000 900 44 3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60 43 3.4 /0.55
(1219) 925 44 3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55
950 45 3.8 /0.60 44 3.2 /0.50 44 3.4 /0.55 44 3.5 /0.55
750 42 3.3 /0.50 42 3.4 /0.55 42 3.6 /0.55 42 3.7 /0.55
4001 775 43 3.8 /0.60 42 3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55
(1220) 800 43 3.6 /0.55 43 3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50
825 44 3.8 /0.60 43 3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60
850 44 3.6 /0.55 44 3.7 /0.60 43 3.4 /0.55 43 3.5 /0.55
5000 875 44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55 44 3.8 /0.60
(1524) 900 44 3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55 44 3.6 /0.55
925 45 3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55
725 42 3.3 /0.50 42 3.4 /0.55 42 3.5 /0.55 42 3.6 /0.55
5001 750 43 3.7 /0.60 42 3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55
(1525) 775 43 3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60 42 3.2 /0.50
800 44 3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55 43 3.6 /0.55
825 44 3.5 /0.55 44 3.7 /0.55 44 3.8 /0.60 43 3.4 /0.55
6000 850 44 3.3 /0.50 44 3.4 /0.55 44 3.6 /0.55 44 3.7 /0.60
(1829) 875 45 3.8 /0.60 44 3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55
900 46 3.8 /0.60 45 3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50
675 42 3.5 /0.55 42 3.6 /0.55 42 3.7 /0.60 42 3.8 /0.60
6001 700 42 3.2 /0.50 42 3.3 /0.50 42 3.5 /0.55 42 3.6 /0.55
(1830) 725 43 3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50 42 3.3 /0.50
750 43 3.4 /0.55 43 3.5 /0.55 43 3.7 /0.55 43 3.8 /0.60
775 44 3.7 /0.60 44 3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55
7000 800 44 3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60 44 3.8 /0.60
(2133) 825 44 3.2 /0.50 44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55
850 45 3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55
U.S.A. On
ly
to
U.S.A. On
ly
to
ft (m)
U.S.A. and CanadaU.S.A. and CanadaU.S.A. Only
to
U.S.A. On
l
y
to
(TABULATED DATA BASED ON 20,200 BTUH MAX-HEAT / 8,000 BTUH MIN-HEAT PER BURNER,
DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL)
ALTITUDE
RANGE
A11621A
59MN7A
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