Option/accessory weights – Bryant 581C User Manual
Page 90
90
PHYSICAL DATA — 581B090-150 (cont)
LEGEND
*Single phase/three phase.
†Indicates automatic reset.
**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.
UNIT SIZE 581B
090
102
120
150
FURNACE SECTION
Rollout Switch Cutout Temp (F)†
195
195
195
195
Burner Orifice Diameter (in. ...drill size)**
Natural Gas — Std
125
.120...31
125
.120...31
180
.120...31
180
.120...31
180
.120...31
180
.120...31
224
.120...31
224
.129...30
224
.120...31
224
.120...31
250
.129...30
—
—
Liquid Propane — Alt††
125
.096...41
125
.096...41
180
.096...41
180
.096...41
180
.096...41
180
.096...41
224
.096...41
224
.102...38
224
.096...41
224
.096...41
250
.102...38
—
—
Thermostat Heat Anticipator Setting (amps)
Stage 1
.14
.14
.14
.14
.14
.14
.14
.14
.14
.14
.14
Stage 2
.14
.14
.20
.20
.20
.20
.20
.20
.20
.20
.20
Gas Input (Btuh)
Stage 1
125
90,000
125
90,000
180
120,000
180
120,000
180
120,000
180
120,000
224
180,000
224
180,000
224
180,000
224
180,000
250
200,000
—
—
Stage 2
125
125,000
125
125,000
180
180,000
180
180,000
180
180,000
180
180,000
224
224,000
224
224,000
224
224,000
224
224,000
250
250,000
—
—
Efficiency (Steady State) (%)
82
82
82
82
82
82
82
80
82
82
80
Temperature Rise Range
125
20-50
125
20-50
180
35-65
180
35-65
180
35-65
180
35-65
224
35-65
224
40-70
224
45-75
224
45-75
250
40-70
—
—
Manifold Pressure (in. wg)
Natural Gas — Std
3.5
3.5
3.5
3.5
Liquid Propane — Alt††
3.5
3.5
3.5
3.5
Gas Valve Quantity
1
1
1
1
Gas Valve Pressure Range (Min-Max Allowable)
Psig
0.180-0.470
0.180-0.470
0.180-0.470
0.180-0.470
in. wg
5.0-13.0
5.0-13.0
5.0-13.0
5.0-13.0
Field Gas Connection Size (in. FPT)
125
.50
125
.50
180
.75
180
.75
180
.75
180
.75
224
.75
224
.75
224
.75
224
.75
250
.75
—
—
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
450 ± 50
Cutout
428
Reset (Auto.)
320
LOSS-OF-CHARGE SWITCH/LOW-PRESSURE
SWITCH (Liquid LIne) (psig)
Cutout
7 ± 3
Reset (Auto.)
22 ± 7
FREEZE PROTECTION THERMOSTAT
Opens (F)
30 ± 5
Closes (F)
45 ± 5
OUTDOOR-AIR INLET SCREENS
Cleanable
Quantity...Size (in.)
1...20 x 25 x 1
1...16 x 25 x 1
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
4...16 x 20 x 2
4...20 x 20 x 2
4...20 x 20 x 2
4...20 x 20 x 2
Bhp — Brake Horsepower
581B — OPTION/ACCESSORY WEIGHTS
Option / Accessory
036
048
060
072
090
102
120
150
lb
kg
lb
k
g
lb
kg
lb
kg
lb
kg
lb
kg
lb
kg
lb
kg
Perfect Humidity
Dehumidification System
15
7
23
10
25
11
29
13
44
20
51
23
51
23
51
23
Power Exhaust - vertical
50
23
50
23
50
23
50
23
75
34
75
34
75
34
75
34
Power Exhaust - horizontal
30
14
30
14
30
14
30
14
30
14
30
14
30
14
30
14
EconoMi$er ( IV or 2)
50
23
50
23
50
23
50
23
75
34
75
34
75
34
75
34
Two Position damper
(25%)
22
10
22
10
22
10
22
10
32
15
32
15
32
15
32
15
Two Position damper
(100%)
39
18
39
18
39
18
39
18
58
26
58
26
58
26
58
26
Manual Dampers
12
5
12
5
12
5
18
8
18
8
18
8
18
8
18
8
Hail Guard (louvered)
16
7
16
7
16
7
16
7
34
15
34
15
34
15
34
15
Hail Guard (standard hood
assembly)
25
11
25
11
25
11
25
11
38
17
50
23
50
23
50
23
Cu/Cu Condenser Coil
6
3
13
6
13
6
15
7
12
5
23
10
23
10
23
10
Cu/Cu Condenser and
Evaporator Coils
12
5
19
9
21
10
26
12
25
11
49
22
49
22
49
22
Roof Curb (14-in. curb)
115
52
115
52
115
52
115
52
143
65
143
65
143
65
143
65
Roof Curb (24-in. curb)
197
89
197
89
197
89
197
89
245
111
245
111
245
111
245
111
581
B0
36
-15
0