5
Physical data
* Capacity in accordance with U.S. Government DOE test procedures.
† Gas input ratings are certified for elevations to 2000 ft. For elevations above 2000 ft, reduce ratings 2% for each 1000 ft above sea level. In Can-
ada, derate the unit 5% for elevations 2000 to 4500 ft above sea level.
‡•Airflow shown is for bottom only return-air supply with factory supplied 1-in. washable filter(s).
• For air delivery above 1800 CFM, see Air Delivery table for other options.
• An airflow reduction of up to 7% may occur when using the factory-specified 4 5/16-inch wide, high efficiency media filter.
• For best furnace efficiency when using the 4 5/16-inch wide media filter, adjust the blower speed tap to near the mid-point of the rise range.
ICS—Isolated Combustion System;
UNIT SIZE 040-08 040-12 060-08 060-12 060-16 080-12 080-16 080-20 100-16 100-20 120-20 140-20
OUTPUT CAPACITY BTUH* (ICS) Upflow
38,000 38,000 56,000 56,000 56,000 75,000 75,000 75,000 94,000 94,000 113,000 129,000
(Shaded capacities are) Downflow
38,000 38,000 56,000 56,000 56,000 75,000 75,000 75,000 94,000 94,000 113,000 129,000
specified on rating plate) Horizontal
38,000 38,000 56,000 56,000 56,000 74,000 75,000 75,000 93,000 93,000 112,000 128,000
INPUT BTUH†
40,000 40,000 60,000 60,000 60,000 80,000 80,000 80,000 100,000100,000 120,000 138,000
SHIPPING WEIGHT (Lb)
149 152 156 163 166 172 175 197 193 196 252 252
CERTIFIED TEMP RISE RANGE (°F)
30—60 15—45 45—75 30—60 20—50 40—70 30—60 20—50 45—75 30—60 40—70 50—80
CERTIFIED EXT STATIC PRESSURE
(In. wc)
Heating
0.10 0.10 0.12 0.12 0.12 0.15 0.15 0.15 0.20 0.20 0.20 0.20
Cooling
0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50
AIRFLOW CFM‡ Heating
850 1125 885 1065 1320 1190 1285 1785 1315 1690 1720 1970
Cooling
895 1215 900 1200 1545 1245 1525 1925 1570 1930 2000 1990
LIMIT CONTROL
SPST
HEATING BLOWER CONTROL (Off Delay)
Selectable 90, 135, 180, or 225 Sec
BURNERS (Monoport)
2233344455 6 6
GAS CONNECTION SIZE
1/2-in. NPT
GAS VALVE (Redundant) Manufacturer
White-Rodgers
Minimum Inlet Pressure (In. wc)
4.5 (Natural Gas)
Maximum Inlet Pressure (In. wc)
13.6 (Natural Gas)
IGNITION DEVICE
Hot Surface
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