Bryant 580D User Manual
Page 13
PHYSICAL DATA — 579F180-300 (cont)
UNIT SIZE 579F
180
LOW/HIGH HEAT
216
LOW/HIGH HEAT
240
LOW/HIGH HEAT
300
LOW/HIGH HEAT
FURNACE SECTION
Rollout Switch Cutout
Temp (F)††
190
190
190
190
Burner Orifice Diameter
(in. ...drill size)
Natural Gas
0.1405...28/0.136...29
0.1405...28/0.136...29
0.1405...28/0.136...29
0.1405...28/0.136...29
Thermostat Heat Anticipator Setting (amps)
208/230 v Stage 1
0.98
0.98
0.98
0.98
Stage 2
0.44
0.44
0.44
0.44
460 v Stage 1
0.80
0.80
0.80
0.80
Stage 2
0.44
0.44
0.44
0.44
Gas Input (Btuh) Stage 1
172,000/225,000
206,000/270,000
206,000/270,000
206,000/270,000
Stage 2
230,000/300,000
275,000/360,000
275,000/360,000
275,000/360,000
Efficiency (Steady State) (%)
81
81
81
81
Temperature Rise Range
15-45/30-60
15-45/20-50
15-45/20-50
15-45/20-50
Manifold Pressure (in. wg)
Natural Gas
3.3
3.3
3.3
3.3
Gas Valve Pressure Range
in. wg
5.5-13.5
5.5-13.5
5.5-13.5
5.5-13.5
psig
0.235-0.487
0.235-0.487
0.235-0.487
0.235-0.487
Gas Valve Quantity
1
1
1
1
Field Gas Connection Size (in.)
3
⁄
4
3
⁄
4
3
⁄
4
3
⁄
4
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
(Differential)
—
Cutout
426
Reset (Auto.)
320
LOW-PRESSURE SWITCH (psig)
Cutout
7
Reset (Auto.)
22
FREEZE PROTECTION THERMOSTAT (F)
Opens
30 ± 5
Closes
45 ± 5
OUTDOOR-AIR INLET SCREENS
Cleanable
Quantity...Size (in.)
2...20 x 25 x 1
1...20 x 20 x 1
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
4...20 x 20 x 2
4...16 x 20 x 2
POWER EXHAUST
1
⁄
2
Hp 208/230-460 v Motor Direct Drive, Prop-Fan (Factory-wired for 460 v)
LEGEND
Al
— Aluminum
Bhp — Brake Horsepower
Cu
— Copper
TXV — Thermostatic Expansion Valve
*Evaporator coil fin material/condenser coil fin material.
†Weight of 14-in. roof curb.
**On 579F180-300 units, Circuit 1 consists of lower portion of con-
denser coil and lower portion of evaporator coil, and Circuit 2 is the
upper portion of both coils.
††Rollout switch lockout is manually reset by interrupting power to unit
or resetting thermostat.
The 579F300 unit requires 2-in. industrial-grade filters capable of
handling face velocities of up to 625 ft/min (such as American Air Fil-
ter no. 5700 or equivalent).
NOTE: The 579F180-300 units have a low-pressure switch (standard)
located on the suction side.
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