Physical Data, 548F090-120 | Bryant 549B, 542J manual

548F036-120

PHYSICAL DATA (cont)

548F090-120

UNIT SIZE 548F		090	102	120
NOMINAL CAPACITY (tons)		71/2	81/2	10
OPERATING WEIGHT (lb)
Unit		940	965	1015
Economizer
Durablade		44	44	44
EconoMi$er		62	62	62
Roof Curb*		143	143	143
COMPRESSOR			Hermetic
Quantity		2	2	2
Oil (oz)		45 ea	54 ea	54 ea
REFRIGERANT TYPE			R-22
Operating Charge (lb-oz)
Circuit 1		5-14	8- 6	7-14
Circuit 2		5-13	8-13	8- 3
OUTDOOR COIL		Enhanced Copper Tubes, Aluminum Lanced Fins Fixed Orifice Metering Device
Rows...Fins/in.		1...17	2...17	2...17
Total Face Area (sq ft)		20.50	18.00	18.30
OUTDOOR FAN			Propeller Type
Nominal Cfm		6500	6500	6500
Quantity...Diameter (in.)		2...22	2...22	2...22
Motor Hp...Rpm		1/4...1100	1/4...1100	1/4...1100
Watts Input (Total)		500	500	500
INDOOR COIL		Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Fixed Orifice Metering Device
Rows...Fins/in.		3...15	3...15	3...15
Total Face Area (sq ft)		8.0	8.0	11.1
INDOOR FAN			Centrifugal Type
Quantity...Size (in.)	Std	1...15 x 15	1...15 x 15	1...15 x 15
	Alt	1...15 x 15	—	1...15 x 15
	High-Static	1...15 x 15	1...15 x 15	1...15 x 15
Type Drive	Std	Belt	Belt	Belt
	Alt	Belt	—	Belt
Nominal Cfm	High-Static	Belt	Belt	Belt
Nominal Cfm		3000	3600	4000
Maximum Continuous Bhp	Std	2.40	2.40	2.40
	Alt	2.40	—	2.90
	High-Static	3.70	3.70	5.25
Motor Frame Size	Std	56	56	56
	Alt	56	—	56
	High-Static	56	56	56
Nominal Rpm High/Low	Std	—	—	—
	Alt	—	—	—
	High-Static	1725	1725	1725
Fan Rpm Range	Std	590- 840	685- 935	685- 935
	Alt	685- 935	—	835-1085
Motor Bearing Type	High-Static	860-1080	860-1080	830-1130
Motor Bearing Type		Ball	Ball	Ball
Maximum Allowable Rpm		2100	2100	2100
Motor Pulley Pitch Diameter Min/Max (in.)	Std	2.4/3.4	2.8/3.8	2.8/3.8
	Alt	2.8/3.8	—	3.4/4.4
	High-Static	4.0/5.0	4.0/5.0	2.8/3.8
Nominal Motor Shaft Diameter (in.)	Std	5/8	5/8	5/8
	Alt	5/8	—	7/8
Fan Pulley Pitch Diameter (in.)	High-Static	7/8	7/8	7/8
Fan Pulley Pitch Diameter (in.)	Std	7.0	7.0	7.0
	Alt	7.0	—	7.0
	High-Static	8.0	8.0	5.8
Belt, Quantity...Type...Length (in.)	Std	1...A...49	1...A...49	1...A...49
	Alt	1...A...49	—	1...A...49
	High-Static	1...A...55	1...A...55	1...BX...46
Pulley Center Line Distance (in.)	Std	16.75-19.25	16.75-19.25	15.85-17.50
	Alt	15.75-19.25	—	15.85-17.50
Speed Change per Full Turn of	High-Static	15.75-19.25	16.75-19.25	15.85-17.50
Speed Change per Full Turn of
Movable Pulley Flange (rpm)	Std	50	50	50
	Alt	50	—	50
Movable Pulley Maximum Full Turns	High-Static	60	60	60
Movable Pulley Maximum Full Turns
From Closed Position	Std	5	5	5
	Alt	5	—	5
	High-Static	5	5	6
Factory Setting	Std	5	5	5
	Alt	5	—	5
	High-Static	5	5	5
Factory Speed Setting (rpm)	Std	590	685	685
	Alt	685	—	835
Fan Shaft Diameter at Pulley (in.)	High-Static	860	860	887
Fan Shaft Diameter at Pulley (in.)		1	1	1
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 ± 5
FREEZE-PROTECTION THERMOSTAT (F)
Opens			30 ± 5
Closes			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

LEGEND

Bhp — Brake Horsepower *Weight of 14-in. roof curb.

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

549B, 548F, 542J specifications

Bryant 542J is a high-efficiency gas furnace that stands out for its reliability and advanced heating technologies. Designed to deliver consistent warmth and comfort in residential settings, it combines innovative engineering with energy-efficient features.

One of the key characteristics of the Bryant 542J is its two-stage heating capability. This means that the furnace can adjust its heat output according to the heating demands of your home. During milder weather, it operates at a lower stage, consuming less energy while still maintaining a comfortable environment. When the temperatures drop, the furnace shifts to its higher capacity, providing the necessary warmth efficiently. This not only enhances comfort but also contributes to lower energy bills.

In addition to its two-stage operation, the Bryant 542J also incorporates a variable-speed blower motor. This technology allows the furnace to adjust the airflow depending on the heating requirements, ensuring an even distribution of warm air throughout the home. The variable-speed blower also operates more quietly than conventional fixed-speed motors, creating a serene indoor environment.

Energy efficiency is a hallmark of the Bryant 542J, boasting an Annual Fuel Utilization Efficiency (AFUE) rating of up to 96.5%. This impressive rating means that a significant portion of the energy consumed is effectively converted into usable heat, resulting in substantial savings on heating costs over time. Furthermore, the furnace is equipped with a sealed combustion system that draws air from outside the home, minimizing energy waste and improving indoor air quality.

Diagnostic features are another highlight of the Bryant 542J, which come equipped with SmartEvap technology. This allows the unit to self-diagnose potential issues, providing homeowners with peace of mind and simplifying maintenance procedures.

Durability is also a key feature of the Bryant 542J. It is constructed with high-quality materials designed to withstand harsh winter conditions, ensuring a long lifespan and reliable performance. Its compact design also allows for flexible installation, making it suitable for various residential layouts.

In summary, the Bryant 542J is more than just a gas furnace; it is a sophisticated heating solution that combines efficiency, comfort, and reliability. With features such as two-stage heating, a variable-speed blower, high AFUE ratings, and advanced diagnostics, it is an excellent choice for homeowners seeking an efficient and effective heating system.

Bryant 549B, 542J manual Physical Data, 548F090-120

Models: 549B 548F 542J

PHYSICAL DATA (cont)

548F090-120

UNIT SIZE 548F

OUTDOOR COIL

OUTDOOR FAN

INDOOR COIL

INDOOR FAN

RETURN-AIR FILTERS

549B, 548F, 542J specifications