Physical Data - Bryant 581A/B Product Information Manual

UNIT SIZE 581B
FURNACE SECTION
Rollout Switch Cutout Temp (F)†
Burner Orifice Diameter (in. ...drill size)**
Natural Gas — Std
Liquid Propane — Alt††
Thermostat Heat Anticipator Setting (amps)
Stage 1
Stage 2
Gas Input (Btuh) Stage 1
Stage 2
Efficiency (Steady State) (%)
Temperature Rise Range
Manifold Pressure (in. wg)
Natural Gas — Std
Liquid Propane — Alt††
Field Gas Connection Size (in.)
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
Cutout
Reset (Auto.)
LOSS-OF-CHARGE SWITCH/LOW-PRESSURE
SWITCH (Liquid LIne) (psig)
Cutout
Reset (Auto.)
FREEZE PROTECTION THERMOSTAT
Opens (F)
Closes (F)
OUTDOOR-AIR INLET SCREENS
Quantity...Size (in.)
RETURN-AIR FILTERS
Quantity...Size (in.)
LEGEND
Bhp — Brake Horsepower
*Single phase/three phase.
†Indicates automatic reset.
PHYSICAL DATA — 581B090-150 (cont)
090
195
Lo .120...31
Med
.120...31
Hi
.120...31
Lo
.096...41
Med
.096...41
Hi
.096...41
.14
.14
.14
.14
.20
.20
Lo
90,000
Med
120,000
Hi
180,000
Lo
125,000
Med
180,000
Hi
224,000
82
82
82
Lo
20-50
Med
35-65
Hi
45-75
3.5
3.5
Lo
.50
Med
.75
Hi
.75
4...16 x 20 x 2
86
102
195
.120...31
.120...31
.120...31
.096...41
.096...41
.096...41
.14
.14
.14
.14
.20
.20
90,000
120,000
180,000
125,000
180,000
224,000
82
82
82
20-50
35-65
45-75
3.5
3.5
.50
.75
.75
450 ± 50
428
320
7 ± 3
22 ± 7
30 ± 5
45 ± 5
Cleanable
1...20 x 25 x 1
1...16 x 25 x 1
Throwaway
4...20 x 20 x 2 4...20 x 20 x 2
**180,000 Btuh heat input units have 2 burners.
224,000 Btuh heat input units and 250,000 Btuh Heat input units have
3 burners.
††An LP kit is available as an accessory.
120 150
195 195
.120...31 .120...31
.120...31 .129...30
.129...30
.096...41 .096...41
.096...41 .102...38
.102...38
.14 .14
.14 .14
.14
.20 .20
.20 .20
.20
120,000 120,000
180,000 180,000
200,000
180,000 180,000
224,000 224,000
250,000
82 82
82 80
80
35-65 35-65
35-65 40-70
40-70
3.5 3.5
3.5 3.5
.75 .75
.75 .75
.75
4...20 x 20 x 2