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ARI* CAPACITY RATINGS (cont)
HEATING CAPACITIES AND EFFICIENCIES — 580D036-150
UNIT 580D
HEATING INPUT
(Btuh)
Stage 2/Stage 1
OUTPUT CAPACITY
(Btuh)
TEMPERATURE
RISE
(F)
AFUE
(%)
STEADY-STATE
EFFICIENCY
(%)
CALIFORNIA
SEASONAL
EFFICIENCY
(%)
036 074 —/ 72,000 59,200 25-55 80.0 80.0 77.2
036 115 115,000/ 82,000 92,000 55-85 80.0 80.0 76.7
048 074 —/ 72,000 59,200 25-55 80.0 80.0 77.2
048 115 —/115,000 92,000 35-65 80.0 80.0 77.1
048 150 150,000/120,000 120,000 50-80 80.0 80.0 76.9
060 074 —/ 72,000 59,200 25-55 80.0 80.0 77.2
060 115 —/115,000 92,000 35-65 80.0 80.0 77.1
060 150 150,000/120,000 120,000 50-80 80.0 80.0 76.9
072 074 —/ 72,000 59,200 25-55 80.0 80.0 77.2
072 115 —/115,000 92,000 35-65 80.0 80.0 77.1
072 150 150,000/120,000 120,000 50-80 80.0 80.0 76.9
090 125 —/125,000 100,000 20-50 80.0 80.0 75.8
090 180 180,000/120,000 144,000 35-65 80.0 80.0 77.1
090 224 224,000/180,000 179,200 45-75 80.0 80.0 77.1
102 125 —/125,000 100,000 20-50 80.0 80.0 75.8
102 184 180,000/120,000 144,000 35-65 80.0 80.0 77.1
102 224 224,000/180,000 179,200 45-75 80.0 80.0 77.1
120 180 180,000/120,000 144,000 35-65 80.0 80.0 77.1
120 224 224,000/180,000 179,200 35-65 80.0 80.0 77.1
120 250 250,000/200,000 200,000 40-70 80.0 80.0 76.4
150 224 224,000/180,000 179,200 35-65 80.0 80.0 77.1
150 250 250,000/200,000 200,000 40-70 80.0 80.0 76.4
LEGEND
AFUE — Annual Fuel Utilization Efficiency
NOTE: NO
x
levels are 40 nanograms/joule or less with the accessory NO
x
reduction kit (sizes 036-060).
HEATING CAPACITIES AND EFFICIENCIES — 579F180-300
UNIT 579F
HEATING INPUT
(Btuh)
Stage 2/Stage 1*
OUTPUT CAPACITY
(Btuh)
TEMPERATURE
RISE
(F)
STEADY-STATE
EFFICIENCY
(%)
MINIMUM
HEATING
CFM
180 230 230,000/172,000 186,000 15-45 81.0 3800
180 300 300,000/225,000 243,000 30-60 81.0 3800
216 275 275,000/206,000 223,000 15-45 81.0 4750
216 360 360,000/270,000 292,000 20-50 81.0 5450
240 275 275,000/206,000 223,000 15-45 81.0 4750
240 360 360,000/270,000 292,000 20-50 81.0 5450
300 275 275,000/206,000 223,000 15-45 81.0 4750
300 360 360,000/270,000 292,000 20-50 81.0 5450
*All units are 2-stage heat.
NOTE: Minimum allowable temperature of mixed-air entering the heat exchanger during first-stage
heating is 45 F. There is no minimum mixed-air temperature limitation during second-stage heating.
For entering-air temperatures below 45 F both stages of heat must be energized together to minimize
condensation issues and to ensure proper unit operation.
7