Bryant 581A/B User Manual
Page 11

11
ARI* CAPACITY RATINGS (cont)
HEATING CAPACITIES AND EFFICIENCIES — 581B036-150(cont)
208/230/460-3-60 — SINGLE-STAGE GAS HEAT — LOW NOx
208/230/460-3-60 — SINGLE-STAGE GAS HEAT
(California Compliant Models)
208/230/460-3-60 — 2-STAGE GAS HEAT
LEGEND
AFUE — Annual Fuel Utilization Efficiency
NOTE: Capacities for stainless steel heat exchanger units are the same as standard units.
UNIT
581B
INPUT CAPACITY
OUTPUT CAPACITY
TEMPERATURE
RISE (°F)
MINIMUM HEATING
AIRFLOW (CFM)
EFFICIENCY
AFUE (%)
Steady State (%)
036060N
60,000
50,000
20-50
930
80.2
81.2
036090N
90,000
74,000
30-60
1150
81.0
81.4
048060N
60,000
50,000
20-50
930
80.2
81.2
048090N
90,000
74,000
30-60
1150
81.0
81.4
048120N
120,000
101,000
40-70
1340
80.7
82.4
060060N
60,000
50,000
20-50
930
80.2
81.2
060090N
90,000
74,000
30-60
1150
81.0
81.4
060120N
120,000
101,000
40-70
1340
80.7
82.4
UNIT
581B
INPUT CAPACITY
OUTPUT CAPACITY
TEMPERATURE
RISE (°F)
MINIMUM HEATING
AIRFLOW (CFM)
EFFICIENCY
AFUE (%)
Steady State (%)
036071
72,000
59,040
25-55
1000
82.0
82.0
036114
115,000
93,150
55-85
1020
80.0
80.0
048071
72,000
59,040
25-55
1000
82.0
82.0
048114
115,000
93,150
30-60
1440
81.0
81.0
048149
150,000
120,000
50-80
1390
80.0
80.0
060071
72,000
59,040
25-55
1220
82.0
82.0
060114
115,000
93,150
35-65
1330
81.0
81.0
060149
150,000
120,000
50-80
1390
80.0
80.0
UNIT
581B
INPUT CAPACITY
OUTPUT CAPACITY
TEMPERATUR
E
RISE (°F)
MINIMUM
HEATING
AIRFLOW (CFM)
EFFICIENCY
1st Stage
2nd Stage
1st Stage
2nd Stage
AFUE (%)
Steady State (%)
036072
50,000
72,000
41,000
59,040
25-55
1004
82.8
82.0
036115
82,000
115,000
65,600
93,150
55-85
1002
80.0
80.0
048072
50,000
72,000
41,000
59,040
25-55
1004
82.8
82.0
048115
82,000
115,000
66,420
93,150
35-65
1330
81.0
81.0
048150
120,000
150,000
96,000
120,000
50-80
1390
80.4
80.0
060072
50,000
72,000
41,000
59,040
25-55
1004
82.8
82.0
060115
82,000
115,000
66,420
93,150
35-65
1330
81.0
81.0
060150
120,000
150,000
96,000
120,000
50-80
1370
80.4
80.0
072072
50,000
72,000
41,000
59,040
25-55
1220
82.0
82.0
072115
82,000
115,000
66,420
93,150
35-65
1330
81.0
81.0
072150
120,000
150,000
96,000
120,000
50-80
1390
80.0
80.0
090125
90,000
125,000
73,800
102,500
20-50
1900
82.0
82.0
090180
120,000
180,000
98,400
147,600
35-65
1440
82.0
82.0
090224
180,000
224,000
147,600
183,680
45-75
2230
82.0
82.0
102125
90,000
125,000
73,800
102,500
20-50
1900
82.0
82.0
102180
120,000
180,000
98,400
147,600
35-65
1440
82.0
82.0
102224
180,000
224,000
147,600
183,680
45-75
2230
82.0
82.0
120180
120,000
180,000
98,400
147,600
35-65
1440
82.0
82.0
120224
180,000
224,000
147,600
183,680
35-65
2570
82.0
82.0
120250
200,000
250,000
160,000
200,000
40-70
2650
80.0
80.0
150224
180,000
224,000
147,600
183,680
35-65
2570
82.0
82.0
150250
200,000
250,000
160,000
200,000
40-70
2650
80.0
80.0