7
Physical data
* Gas input ratings are certified for elevations to 2000 ft. For elevations above 2000 ft, reduce ratings 4% for each 1000 ft above sea level. Refer to National
Fuel Gas code Table F4 or furnace Installation Instructions. In Canada, derate the unit 10% for elevations 2000 to 4500 ft above sea level.
† Capacity in accordance with U.S. Government DOE test procedures.
‡ Airflow shown is for bottom only return-air supply. For air delivery above 1800 CFM, see Air Delivery Table for other options. A filter is required for each
return-air supply. An airflow reduction of up to 7% may occur when using a Carrier 4-5/15
high efficiency media filter.
ICS — Isolated Combustion System
N/A-Not Applicable
UNIT SIZE
090 110 135 155
20 12 16 22 16 22 20
OUTPUT CAPACITY BTUH*
(Nonweatherized ICS) †
58DLX Upflow; all 58DLA
71,000 89,000 89,000 89,000 107,000 107,000 125,000
58DLX Downflow/Horizontal
68,000 85,000 85,000 85,000 102,000 102,000 119,000
INPUT BTUH*
58DLX Upflow; all 58DLA
88,000 110,000 110,000 110,000 132,000 132,000 154,000
58DLX Downflow/Horizontal
84,000 105,000 105,000 105,000 126,000 126,000 147,000
AFUE%* Nonweatherized ICS
80.0 80.0 80.0 80.0 80.0 80.0 80.0
CERTIFIED TEMP RISE RANGE (°F)
25–55 50–80 40–70 30–60 50–80 40–70 45–75
CERTIFIED EXT STATIC
PRESSURE
Heating
0.15 0.20 0.20 0.20 0.20 0.20 0.20
Cooling
0.50 0.50 0.50 0.80 0.50 0.50 0.50
AIRFLOW CFM‡
Heating
1990 1335 1515 1900 1525 1850 1790
Cooling
2025 1355 1680 2220 1710 2110 2230
LIMIT CONTROL
SPST
HEATING BLOWER CONTROL
Solid-State Time Operation
BURNERS (Monoport)
4555667
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
Blower performance data
PSC-Permanent Split Capacitor
UNIT SIZE
090 110 135 155
20 12 16 22 16 22 20
DIRECT-DRIVE MOTOR Hp (PSC)
3/4 1/3 1/2 3/4 1/2 3/4 3/4
MOTOR FULL LOAD AMPS
11.1 5.2 7.9 11.1 7.9 11.1 11.1
RPM (Nominal) – SPEEDS
1075-4 1075-4 1075-4 1075-4 1075-4 1075-4 1075-4
BLOWER WHEEL DIAMETER
WIDTHS (In.)
11 x 11 10 x 8 10 x 10 11 x 11 10 x 10 11 x 11 11 x 11