Bryant COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B User Manual page 12

UNIT SIZE 581B
FURNACE SECTION
Rollout Switch Cutout Temp†
Burner Orifice Diameter
(in. ...drill size)
Natural Gas Std
Liquid Propane Accy
Thermostat Heat Anticipator
Setting (amps)
208/230 v and 575 Stage 1
Stage 2
460 v Stage 1
Stage 2
Gas Input (Btuh)Stage1/Stage 2
Efficiency (Steady State) (%)
Temperature Rise Range
Manifold Pressure (in. wg)
Natural Gas Std
Liquid Propane Accy
Gas Valve Quantity
Gas Valve Pressure Range
Psig
in. wg
Field Gas Connection
Size (in.)
HIGH-PRESSURE SWITCH (psig)
Standard Compressor
Internal Relief (Differential)
Cutout
Reset (Auto.)
LOSS-OF-CHARGE (LOW-PRESSURE)
SWITCH (psig)
Cutout
Reset (Auto.)
FREEZE PROTECTION
THERMOSTAT (F)
Opens
Closes
OUTDOOR-AIR INLET SCREENS
Quantity...Size (in.)
RETURN-AIR FILTERS
Quantity...Size (in.)
LEGEND
Bhp — Brake Horsepower
*Weight of 14-in. roof curb.
PHYSICAL DATA (cont)
HEAT
090
195
Lo .120...31
Med .120...31
Hi .120...31
Lo .096...41
Med .096...41
Hi .096...41
.14
.20
.14
.20
Lo 125,000/—
Med 120,000/180,000
Hi 180,000/224,000
82
Lo 20-50
Med 35-65
45-75
Hi
3.5
3.5
1
0.180-0.487
5.0-13.5
Lo 1 /
2
Med 3 /
4
Hi 3 /
4
4...16 x 20 x 2
12
102
195
.120...31 .120...31
.120...31 .120...31
.120...31 .129...30
.096...41 .096...41
.096...41 .096...41
.096...41 .102...38
.14
.20
.14
.20
125,000/— 120,000/180,000
120,000/180,000 180,000/224,000
180,000/224,000 200,000/250,000
82, 80 (in 250,000 Btuh
82
heat range)
20-50 35-65
35-65 35-65
45-75 40-70
3.5
3.5
1
0.180-0.487 0.180-0.487
5.0-13.5 5.0-13.5
1 /
2
3 /
4
3 /
4
450 ± 50
428
320
7 ± 3
22 ± 7
30 ± 5
45 ± 5
Cleanable
1...20 x 24 x 1
1...16 x 25 x 1
Throwaway
4...16 x 20 x 2 4...20 x 20 x 2
†Rollout switch lockout is manually reset by interrupting power to unit or
resetting thermostat.
NOTE: High-static motor not available on size 150 units.
120 150
195 195
.120...31
.129...30
—
.096...41
.102...38
—
.14 .14
.20 .20
.14 .14
.20 .20
180,000/224,000
200,000/250,000
—/—
82, 80 (in 250,000 Btuh
heat range)
35-65
40-70
—
3.5 3.5
3.5 3.5
1 1
0.180-0.487
5.0-13.5
3 / 3 /
4 4
3 / 3 /
4 4
3 / —
4
500 ± 50
428
320
4...20 x 20 x 2