Bryant 579F - Manual (Page 20)

SPECIFICATIONS — 579F180-300 (cont)
UNIT SIZE 180 216 240 300
FURNACE SECTION Low Heat High Heat Low Heat Low Heat High Heat Low Heat High Heat
Rollout Switch Cutout
Temp (F)†
190 190 190 190 190 190 190
Burner Orifice Diameter
(in. ...drill size)
Natural Gas
Std .113...33 .113...33 .113...33 .113...33 .113...33 .113...33 .113...33
Liquid Propane Alt — — — — — — —
Pilot Orifice Diameter
(in. ...drill size)
Natural Gas
Std
0.55...54
.055...54,
.041...59 .055...54,
.041..59
.055...54,
.041...59
.070...50(2)
.055...54,
.041...59
.070...50(2)
Liquid Propane Alt — — — — — — —
Thermostat Heat Anticipator
Setting (amps)
Stage 1 1.20 1.20 1.20 1.20 1.20 1.20 1.20
Stage 2 0.60 — 0.60 0.60 0.60 0.60 0.60
Gas Input (Btuh) Stage 1 115,500 115,500 115,500 115,500 242,500 115,500 242,500
Stage 2 231,000 270,000 270,000 270,000 485,000 270,000 485,000
Efficiency (Steady
State) (%)
80 80 80 80 80 80 80
Temperature Rise Range 25-55 25-55 15-45 15-45 35-65 15-45 35-65
Manifold Pressure
(in. wg)
Natural Gas
Std 3.5 3.5 3.5 3.5 3.5 3.5 3.5
Liquid Propane Alt — — — — — — —
Gas Valve Quantity 2 2 2 2 2 2 2
Gas Valve Pressure Range
Psig 0.180-0.487 0.180-0.487 0.180-0.487 0.180-0.487 0.180-0.487 0.180-0.487 0.180-0.487
in. wg 5.0-13.5 5.0-13.5 5.0-13.5 5.0-13.5 5.0-13.5 5.0-13.5 5.0-13.5
Field Gas Connection
Size (in.)
3 ⁄
4
3 ⁄
4
3 ⁄
4
3 ⁄
4
3 ⁄
4
3 ⁄
4
3 ⁄
4
HIGH-PRESSURE SWITCH (psig)
Standard Compressor
Internal Relief
—
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
LEGEND
Al — Aluminum
Bhp — Brake Horsepower
FIOP — Factory-Installed Option
*Evaporator coil fin material/condenser coil fin material.
†Rollout switch is manual reset.
**Requires the accessory controls upgrade kit.
††Weight of 14-in. roof curb.
࿣ Low-heat weight/high-heat weight.
¶Circuit 1 consists of lower portion of condenser coil and lower portion of evaporator coil, and Circuit 2 is the upper
portion of both coils.
***The 579F300 unit requires 2-in. industrial-grade filters capable of handling face velocities of up to 625 ft/min.
NOTE: The 580D036-150 units have a loss-of-charge/low-pressure switch (accessory) located in the liquid line. The
579F180-300 units have a low-pressure switch (standard) located on the suction side.
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