Bryant 549C manual Physical Data, 548F036-072, Hermetic, R-22, Propeller Type, Centrifugal Type

PHYSICAL DATA

548F036-072

	UNIT SIZE 548F		036		048		060	072
	NOMINAL CAPACITY (tons)		3		4		5	6
	OPERATING WEIGHT (lb)
	Unit		500		520		550	590
	Economizer		50		50		50	50
	EconoMi$erIV or EconoMi$er2
	Roof Curb*		115		115		115	115
	COMPRESSOR					Hermetic
	Quantity		1		1		1	1
	Oil (oz)		45		54		50	54
	REFRIGERANT TYPE					R-22
	Operating Charge (lb-oz)		5-1		6-0		8-0	11-2
	Circuit 1
548F	Circuit 2		—		—		—	—
	OUTDOOR COIL		3/8-in. OD Enhanced Copper Tubes, Aluminum Lanced Fins, Fixed Orifice Metering Device
	Rows...Fins/in.		1...17		1...17		2...17	2...17
	Total Face Area (sq ft)		10.31		14.58		12.25	16.53
	OUTDOOR FAN					Propeller Type
	Nominal Cfm		4000		4000		4000	4000
	Quantity...Diameter (in.)		1...22.0		1...22.0		1...22.0	1...22.0
	Motor Hp...Rpm		1/4...1100		1/4...1100		1/4...1100	1/4...1100
	Watts Input (Total)		325		325		325	325
	INDOOR COIL		3/8-in. OD Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Fixed Orifice Metering Device
	Rows...Fins/in.		2...15		2...15		3...15	3...15
	Total Face Area (sq ft)		4.2		4.2		5.5	5.5
	INDOOR FAN					Centrifugal Type
	Quantity...Size (in.)	Std	1...10 x 10		1...10 x 10		1...11 x 10	1...10 x 10
		Alt	1...10 x 10		1...10 x 10		1...10 x 10	—
	Type Drive	High-Static	1...10 x 10		1...10 x 10		1...10 x 10	1...10 x 10
		Std	Direct		Direct		Direct	Belt
		Alt	Belt		Belt		Belt	—
	Nominal Cfm	High-Static	Belt		Belt		Belt	Belt
		Std	1200		1600		2000	2400
	Maximum Continuous Bhp		.34		.75		1.20	2.40
		Alt	1.00		1.00		1.30/2.40†	—
	Motor Frame Size	High-Static	2.40		2.40		2.90	2.90
		Std	48		48		48	56
		Alt	48		48		56	—
	Nominal Rpm High/Low	High-Static	56		56		56	56
		Std	860/800		1075/970		1075/970	—
		Alt	1620		1620		1725	—
	Fan Rpm Range	High-Static	1725		1725		1725	1725
		Std	—		—		—	1070-1460
		Alt	760-1000		770-1175		878-1192	—
	Motor Bearing Type	High-Static	1075-1455		1075-1455		1300-1685	1300-1685
			Ball		Ball		Ball	Ball
	Maximum Allowable Rpm	Std	2100		2100		2100	2100
	Motor Pulley Pitch Diameter Min/Max (in.)		—		—		—	2.8/3.8
		Alt	1.9/2.9		1.9/2.9		2.4/3.4	—
		High-Static	2.8/3.8		2.8/3.8		3.4/4.4	3.4/4.4
	Nominal Motor Shaft Diameter (in.)	Std	1/2		1/2		1/2	5/8
		Alt	1/2		1/2		5/8	—
	Fan Pulley Pitch Diameter (in.)	High-Static	5/8		5/8		5/8	5/8
		Std	—		—		—	4.5
		Alt	4.5		4.0		4.5	—
	Belt, Quantity...Type...Length (in.)	High-Static	4.5		4.5		4.5	4.5
		Std	—		—		—	1...A...40
		Alt	1...A...34		1...A...34		1...A...39	—
	Pulley Center Line Distance (in.)	High-Static	1...A...39		1...A...39		1...A...40	1...A...40
		Std	—		—		—	14.7-15.5
		Alt	10.0-12.4		10.0-12.4		14.7-15.5	—
	Speed Change per Full Turn of	High-Static	10.0-12.4		10.0-12.4		14.7-15.5	14.7-15.5
			—		—		—	80
	Movable Pulley Flange (rpm)	Std
			48		70		80	—
		Alt
	Movable Pulley Maximum Full Turns	High-Static	65		65		60	60
			—		—		—	5
	From Closed Position	Std
		Alt	5		5		6	—
	Factory Setting	High-Static	6		6		5	5
		Std	—		—		—	3
		Alt	3		3		3	—
	Factory Speed Setting (rpm)	High-Static	31/2		31/2		31/2	31/2
		Std	—		—		—	1225
		Alt	856		932		1035	—
		High-Static	1233		1233		1416	1416
	Fan Shaft Diameter at Pulley (in.)		5/8		5/8		5/8	5/8
	HIGH-PRESSURE SWITCH (psig)
	Standard Compressor Internal Relief (Differential)					450 ± 50
	Cutout					428
	Reset (Auto.)					320
	LOSS-OF-CHARGE SWITCH (psig)
	Cutout					7 ± 3
	Reset (Auto.)					22 ± 7
	FREEZE-PROTECTION THERMOSTAT (F)
	Opens					30 ± 5
	Closes					45 ± 5
	OUTDOOR-AIR INLET SCREENS			Cleanable. Quantity and size depend on options selected.
	RETURN-AIR FILTERS					Throwaway
	Quantity...Size (in.)					2...16 x 25 x 2
	LEGEND
	Bhp — Brake Horsepower

*Weight of 14-in. roof curb. †Single phase/three phase.

NOTE: The 548F units have a loss-of-charge switch located in the liquid line.

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