Bryant 542J, 548F manual 549B090,120, PHYSICAL DATA cont

PHYSICAL DATA (cont)

549B090,120

BASE UNIT 549B	090		120
NOMINAL CAPACITY (tons)	71/2		10
OPERATING WEIGHT (lb)
Unit	870		1000
Durablade Economizer	44		44
EconoMi$er	62		62
Roof Curb	223		223
COMPRESSOR		Scroll
Quantity	2		2
Oil (oz) (each compr)	57		57
REFRIGERANT TYPE		R-22
Operating Charge (lb)
Circuit 1	9.1		10.6
Circuit 2	9.6		9.9
OUTDOOR FAN		Propeller
Quantity...Diameter (in.)	2...22		2...22
Nominal Cfm	6500		6500
Motor Hp...Rpm	1/4...1100		1/4...1100
OUTDOOR COIL	Enhanced Copper Tubes, Aluminum Fins, Fixed Orifice Metering Device			549B036
Rows...Fins/in.	2...17		2...17
Total Face Area (sq ft)	20.5		25.1
INDOOR FAN		Centrifugal
Size (in.)	15 x 15		15 x 15
Type Drive	Belt		Belt	-120
Nominal Cfm	3000		4000
Maximum Continuous Bhp	2.90		4.20
Motor Frame	56		56
Fan Rpm Range	725-925		860-1080
Motor Bearing Type	Ball		Ball
Maximum Fan Rpm	1725		2100
Motor Pulley Pitch Diameter
A/B (in.)	3.4/4.4		4.0/5.0
Fan Pulley Pitch Diameter (in.)	8.0		8.0
Belt — Type...Length (in.)	A...51		A...51
Pulley Center Line Distance (in.)	16.75-19.25		15.85-17.50
Fan Shaft Diameter at Pulley (in.)	1		1
Speed Change per Full Turn of
Movable Pulley Flange (rpm)	50		45
Movable Pulley Maximum Full
Turns from Closed Position	5		5
Factory Setting — Full Turns Open	5		5
Factory Speed Setting (rpm)	725		860
INDOOR COIL	Enhanced Copper Tubes, Aluminum Double Wavy Fins, Fixed Orifice Metering Device
Rows...Fins/in.	3...15		4...15
Total Face Area (sq ft)	8.89		11.11
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief		625
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
Closes (F)		45
OUTDOOR-AIR INLET FILTER		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...20 x 20 x 2

LEGEND

Bhp — Brake Horsepower

69