Bryant DURAPAC PLUS 581B Installation & Service Instructions Manual page 7

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)
208/230/460 v
First Stage
Second Stage
Gas Input (Btuh)
First Stage/Second Stage (3-phase units)
Efficiency (Steady State) (%)
Temperature Rise Range
Manifold Pressure (in. wg)
Natural Gas — Std
Liquid Propane — Alt††
Maximum Static Pressure (in. wg)
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.
**60,000 and 72,000 Btuh heat input units have 2 burners. 90,000 and
120,000 Btuh heat input units have 3 burners. 115,000 Btuh heat input units
and 150,000 Btuh Heat input units have 3 burners.
Table 1 — Physical Data — 581B036-072 (cont)
036
195
071/072 .113...33
114/115 .113...33
149/150 —
060N .102...38
090N .102...38
120N —
071/072 .089...43
114/115 .089...43
149/150 —
060N .082...45
090N .082...45
120N —
.14
.14
072 50,000/ 72,000
115 82,000/115,000
150 —
071II —/ 72,000
114II —/115,000
149II —
060N*** —/ 60,000
090N*** —/ 90,000
120N*** —
072 82.8
115 80
150 —
071 82
114 80
149 —
060N 80.2
090N 81
120N —
072 25-55
115 55-85
150 —
071 25-55
114 55-85
149 —
060N 20-50
090N 30-60
120N —
3.5
3.5
1.0
1 /
2
— 7 —
048
195
.113...33
.113...33
.129...30
.102...38
.102...38
.116...32
.089...43
.089...43
.102...38
.082...45
.082...45
.094...42
.14
.14
50,000/ 72,000
82,000/115,000
120,000/150,000
—/ 72,000
—/115,000
—/150,000
—/ 60,000
—/ 90,000
—/120,000
82.8
81
80.4
82
81
80
80.2
81
80.7
25-55
35-65
50-80
25-55
35-65
50-80
20-50
30-60
40-70
3.5
3.5
1.0
1 /
2
450 ± 50
428
320
7 ± 3
22 ± 5
30 ± 5
45 ± 5
Cleanable
1...20 x 24 x 1
Throwaway
2...16 x 25 x 2
††An LP kit is available as an accessory. If an LP kit is used with low NO
one low NO baffle must be removed and the units will no longer be classified
x
as low NO units.
x
||California compliant three-phase models.
***California SCAQMD compliant low NO
are controlled to 40 nanograms per joule or less.
060 072
195 195
.113...33 .113...33
.113...33 .113...33
.129...30 .129...30
.102...38 —
.102...38 —
.116...32 —
.089...43 .089...43
.089...43 .089...43
.102...38 .102...38
.082...45 —
.082...45 —
.094...42 —
.14 .14
.14 .14
50,000/ 72,000 50,000/ 72,000
82,000/115,000 82,000/115,000
120,000/150,000 120,000/150,000
—/ 72,000 —
—/115,000 —
—/150,000 —
—/ 60,000 —
—/ 90,000 —
—/120,000 —
82.8 82
81 81
80.4 80
82 —
81 —
80 —
80.2 —
81 —
80.7 —
25-55 25-55
35-65 35-65
50-80 50-80
25-55 —
35-65 —
50-80 —
20-50 —
30-60 —
40-70 —
3.5 3.5
3.5 3.5
1.0 1.0
1 / 1 /
2 2
4...16 x 16 x 2
models have combustion products that
x
units,
x