Bryant 558F, 551A manual PHYSICAL DATA - 551B090-150, Acutrol Metering Device

PHYSICAL DATA — 551B090-150

UNIT 551B	090	102		120	150
NOMINAL CAPACITY (tons)	71/	81/		10	121/	2
	2	2
OPERATING WEIGHT (lb)
Unit	755	760		915	930
EconoMi$er	62	62		62	62
Perfect Humidity™ Dehumidification Package	29	29		33	33
Roof Curb	143	143		143	143
COMPRESSOR			Scroll
Quantity	2	2		2	2
Oil (oz) (each compressor)	53	53		50	60
REFRIGERANT TYPE			R-22				551B036-
Operating Charge (lb-oz)
Standard Unit
Circuit 1	7-10	7-14		9-3	9-8
Circuit 2	8- 2	8- 5		10-3	9-5
Unit With Perfect Humidity Dehumidification Package
Circuit 1	10-10	10-11		12- 8	12-6
Circuit 2	12- 8	10-10		12-14	12-2		150
CONDENSER FAN		Propeller Type
Quantity...Diameter (in.)	2...22	2...22		2...22	2...22
Nominal Cfm	6500	6500		7000	7000
Motor Hp...Rpm	1/ ...1100	1/ ...1100		1/ ...1100	1/ ...1100
Watts Input (Total)	4	4		4	4
	650	650		650	650
CONDENSER COIL	High-Efficiency Enhanced Copper Tubes, Lanced Aluminum Fins
Standard Unit
Rows...Fins/in.	2...17	2...17		2...17	2...17
Total Face Area (sq ft)	20.5	20.5		25.0	25.0
Unit with Perfect Humidity Dehumidification Package
Rows...Fins/in.	1...17	1...17		1...17	1...17
Total Face Area (sq ft)	6.3	6.3		8.4	8.4
EVAPORATOR FAN		Centrifugal Type, Belt Drive
Size (in.)	15 x 15	15 x 15		15 x 15	15 x 15
Nominal Cfm — Standard	3000	3400		4000	5000
Maximum Continuous Bhp
Standard	2.90	2.90		3.70	5.25
High Static	4.20	4.20		5.25	—
Motor Frame	56	56		56	56
Fan Rpm Range
Standard	840-1085	840-1085		860-1080	900-1260
High Static	860-1080	860-1080		830-1130	—
Motor Bearing Type	Ball	Ball		Ball	Ball
Maximum Fan Rpm	2100	2100		2100	2100
Motor Pulley Pitch Diameter A/B (in.)
Standard	3.4/4.4	3.4/4.4		4.0/5.0	2.8/3.8
High Static	4.0/5.0	4.0/5.0		2.8/3.8	—
Nominal Motor Shaft Diameter (in.)	7/	7/		7/	7/
Fan Pulley Pitch Diameter (in.)	8	8		8	8
Standard	7.0	7.0		8.0	5.8
High Static	8.0	8.0		5.8	—
Belt — Quantity...Type...Length (in.)
Standard	1...A...51	1...A...51		1...A...51	1...BX...46
High Static	1...A...55	1...A...55		1...BX...46	—
Pulley Center Line Distance (in.)	16.75-19.25	16.75-19.25		15.85-17.50	15.85-17.50
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Standard	50	50		45	60
High Static	60	60		60	—
Movable Pulley Maximum Full Turns
From Closed Position
Standard	5	5		5	6
High Static	5	5		6	—
Factory Setting — Full Turns Open	5	5		5	5
Factory Speed Setting (rpm)
Standard	840	840		860	960
High Static	860	860		890	—
Fan Shaft Diameter at Pulley (in.)	1	1		1	1
EVAPORATOR COIL	High Efficiency Enhanced Copper Tubes, Aluminum Double-Wavy Fins,
		Acutrol™ Metering Device
Rows...Fins/in.	3...15	3...15		4...15	4...15
Total Face Area (sq ft)	8.9	8.9		11.1	11.1
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief (Differential)			450 ± 50
Cutout			428
Reset (Auto.)			320
LOSS-OF-CHARGE/LOW-PRESSURE
SWITCH (Liquid Line) (psig)
Cutout			7 ± 3
Reset (Auto.)			22 ± 5
FREEZE-PROTECTION THERMOSTAT
Opens (F)			30 ± 5
Closes (F)			45 ± 5
OUTDOOR-AIR INLET SCREENS		Cleanable
Quantity...Size (in.)		1...20 x 25 x 1
		1...16 x 25 x 1
RETURN-AIR FILTERS		Throwaway
Quantity...Size (in.)	4...16 x 20 x 2	4...16 x 20 x 2		4...20 x 20 x 2	4...20 x 20 x 2

LEGEND

Bhp — Brake Horsepower

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