Bryant 580D manual Physical Data Ð 579F180-300, Unit Size 579F, LOW/HIGH Heat

PHYSICAL DATA Ð 579F180-300 (cont)

UNIT SIZE 579F		180	216		240	300
		LOW/HIGH HEAT	LOW/HIGH HEAT		LOW/HIGH HEAT	LOW/HIGH HEAT
FURNACE SECTION
Rollout Switch Cutout
	Temp (F)²²	190	190		190	190
Burner Ori®ce 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				Ð
	(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		²²Rollout switch lockout is manually reset by interrupting power to unit
Al	Ð Aluminum		or resetting thermostat.
Bhp	Ð Brake Horsepower		The 579F300 unit requires 2-in. industrial-grade ®lters capable of
Cu	Ð Copper		handling face velocities of up to 625 ft/min (such as American Air Fil-
TXV Ð Thermostatic Expansion Valve			ter no. 5700 or equivalent).
*Evaporator coil ®n material/condenser coil ®n material.			NOTE: The 579F180-300 units have a low-pressure switch (standard)
²Weight of 14-in. roof curb.			located on the suction side.

**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.

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