Bryant 548J manual Features and Benefits

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FEATURES AND BENEFITS

S Up to 28% lighter than similar industry units. Lighter rooftops make easier replacement jobs.

S 3-8.5 ton units fit on existing Bryant rooftop curbs making the utility connections the same. This saves time and money on replacement jobs.

S Standardized components and layout. Standardized components and controls make service and stocking parts easier.

SScroll compressors on all units. This makes service, stocking parts, replacement, and trouble-shooting easier. S Crankcase heater on all models (except 04 size) provides added protection in all applications.

S Precession sized suction line accumulator provide high reliability by preventing liquid from entering the compressor during low ambient conditions and reverse cycle switch over.

S Field convertible airflow (3-8.5 tons). Being able to convert a unit from vertical airflow to horizontal makes it easy to overcome job site complications.

S4-way reversing valve rapidly changes the flow of refrigerant to quickly changeover from cooling to heating and heating to cooling.

SEasy-adjust, belt-drive motor available on all sizes. Bryant provides a factory solution for most points in the fan performance table. There’s no need for field-supplied drives or motors.

S 3-5 ton models come standard with an Electric Drive X13, 5 speed/torque motor to provide exact performance in many applications. Belt drive motor optional.

S Provisions for bottom or side condensate drain.

SCapable of thru-the-base or thru-the-curb electrical routing.

S Dependable time/temperature defrost logic provides a defrost cycle, if needed, every 30, 60, 90 or 120 minutes and is adjustable.

SSingle-point electrical connection.

S Sloped, composite drain pan. Sloped, composite drain pan sheds water; and won’t rust.

S Standardized controls and control box layout. Standardized components and controls make stocking parts and service easier.

S Clean, easy to use control box.

S Standard coils are copper round tube, aluminum plate fin with optional coil coatings and copper fin design.

SColor-coded wiring.

S Large, laminated wiring and power wiring drawings which are affixed to unit make troubleshooting easy. S Single, central terminal board for test and wiring connections.

SFast-access, handled, panels for easy access to the blower and blower motor, control box, and compressors.

S “No-strip” screw system guides screws into the panel and captures them tightly without stripping the screw, the panel, or the unit.

SExclusive, newly-design indoor refrigerant header for easier maintenance and replacement.

SMechanical cooling (115_F to 25_F or 46_C to -4_C) on Electro-Mechanical (E/M) and Direct Digital Controller (DDC) (RTU-MP controller).

S 2” (51mm) disposable filters on all units.

SHigh capacity refrigerant filter-drier on each circuit.

S High pressure switch, loss of charge switch and freeze protection adds greater unit reliability.

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Contents Product Data Table of Contents Features and Benefits Model Number Nomenclature Field Factory Options AND/OR AccessoriesFACTORY-INSTALLED Options and FIELD-INSTALLED Accessories Option AccessoryEconomizer dry-bulb or enthalpy Convenience Outlet powered or un-poweredPower Exhaust Pressure Relief Filter or Fan Status SwitchesElectric Heaters Motormaster Head Pressure ControllerAlternate Motors and Drives Thru-the-Base ConnectionsARI Cooling Rating Tables Sound Performance Table Minimum Maximum Airflows Electric HeatTons Physical Data8.5 Tons 548J*08 548J*09Motor Frame Size Fan Qty / Type With Pwrd C.O Electric Heat Electrical DataSingle Point KIT Part Number Crsinglexxxxxx Unit Electric Heater NOM APP Part Number PWR TypeCont. Electric Heat Electrical Data 208/230Electric Drive X13 5 speed/torque motor 105A00 16.0 12.0/14.7 038A00 Without P.E With P.E CrheaterxxxxxxCool Cont. Electric Heat Electrical Data Tons575 460 115A00 33.0 30.3 050A00Dimensions 548J Weights & DimensionsUnit disconnect is mounted on panel Dimension Condition610 356 548J*04-07AC08679 C08680 356 Application Data Selection Procedure with 548J*07 Example 900 Ambient TemperatureCooling Capacities 548J*04 105 115 EA dB548J*05 105 115 EA dB 12001400 2500 548J*06 105 115 EA dB1500 22502400 548J*07 105 115 EA dB1800 21003750 548J*08 105 115 EA dB2625 33753400 548J*09 105 115 EA dB2550 2975Return Temperature AIR Entering Outdoor Coil F db at 70% rhHeating Capacities 548J*04Heating Capacity 548J*08 Heating Capacity TonsGeneral fan performance notes Static Pressure Adders Factory Options and/or AccessoriesSpeed Torque CFM ESP BHP FAN Performance548J*04 Electric DRIVE, X13 MOTOR, 3 TON Horizontal Supply 548J*04 Electric DRIVE, X13 MOTOR, 3 TON Vertical Supply548J*05 Electric DRIVE, X13 MOTOR, 4 TON Horizontal Supply 548J*05 Electric DRIVE, X13 MOTOR, 4 TON Vertical Supply1200 1300 1400 1500 1600 1700 1800 1900 2000 548J*06 Electric DRIVE, X13 MOTOR, 5 TON Horizontal Supply 548J*06 Electric DRIVE, X13 MOTOR, 5 TON Vertical Supply1500 1625 1750 1875 2000 2125 2250 2375 2500 TON Horizontal Supply 548J*05 Available External Static Pressure IN. WG CFM RPM BHPCFM RPM BHP 548J*06 548J*07 1800 9271800 907 2250 528 548J*082250 509 2250 788 8472550 495 570 548J*092550 468 546 2550 806 863Unit MOTOR/DRIVE Combo Motor Pulley Turns Open Pulley Adjustment2000 1000 ECONOMIZER, Barometric Relief and PE Performance548J*06 Stage Cooling Electrical Information548J*04 Stage Cooling 548J*05 Stage CoolingRange RLA LRA 548J*07 Stage Cooling548J*08 Stage Cooling Tons 548J*09 Stage Cooling TonsType FLA DISC. Size MCA/MOCP Determination Without C.O. or Unpwrd C.OELEC. HTR Unit IFM Without P.E With P.EMCA Cont. MCA/MOCP Determination Without C.O. or Unpwrd C.OELEC. HTR Unit Type FLA46/48 70/7476/82 79/84FLA DISC. Size MCA Mocp LRA Unit IFM Type NOM STD MEDHigh See43.8 234 41.5 19765/68 78/8448.0 242 45.7 20569/72 82/88ELEC. HTR With Pwrd C.O Unit IFM Without P.E With P.E MCA/MOCP Determination with Pwrd C.O108 Cont. MCA/MOCP Determination with Pwrd C.O111 11329.2 46.533.3 20.2Electric Heater With Pwrd C.O Without P.E With P.E Electric Heater With Pwrd C.O Unit IFM Without P.E With P.E 52.8 247 50.5 21074/78 88/93Stage Cooling Typical Power Diagram Typical Wiring DiagramsC09065 Multi-Protocol Option Diagram Stage Typical Wiring Diagram C09064 Sequence of Operation Emergency heat Automatic changeoverContinuous air circulation Cycle-LOCprotectionHvac Guide Specifications Guide Specifications 548J*04-0923 09 93 Sequence of Operations for Hvac Controls 23 09 33 Electric and Electronic Control System for Hvac23 81 19 Self-Contained Air Conditioners 23 40 13 Panel Air Filters548J 548J 548J 548J 548J Catalog No. PDS548J---01

548J specifications

The Bryant 548J is a high-efficiency gas furnace that combines advanced features and technologies to provide exceptional heating performance. Designed for residential applications, the furnace is notable for its ability to deliver consistent warmth while ensuring energy efficiency and reliability.

One of the main features of the Bryant 548J is its ultra-high efficiency rating, which allows homeowners to save significantly on energy costs. With an Annual Fuel Utilization Efficiency (AFUE) rating of up to 96.5%, this furnace is designed to convert a large portion of fuel into usable heat. This is a remarkable characteristic that not only reduces utility bills but also contributes to a lower environmental footprint.

The 548J is equipped with a modulating gas valve and a variable-speed blower motor. The modulating gas valve enables the furnace to adjust its heating output based on real-time temperature demands, ensuring a more precise heating experience. This results in reduced temperature fluctuations within the home, providing a comfortable living environment. The variable-speed blower motor works in tandem with the modulating valve, facilitating improved air circulation and efficient temperature control.

Additionally, the Bryant 548J features a durable and compact design, making it suitable for various installation spaces. Its quality construction ensures longevity, while the optional stainless steel heat exchanger enhances its reliability. The furnace also includes a quiet operation mode, which minimizes noise levels, ensuring that the unit works quietly in the background without disturbing the household's peace.

Integration with smart home technology is another advantage of the Bryant 548J. Homeowners have the option to connect the furnace to a Wi-Fi-enabled thermostat, allowing for remote temperature control and monitoring. This feature offers enhanced convenience and the ability to optimize energy use according to a homeowner’s schedule.

For peace of mind, the Bryant 548J comes with a range of warranties, protecting the consumer's investment. Bryant’s commitment to quality is reflected in their extensive primary heating testing procedures, which ensure that each unit meets strict performance criteria before it reaches the customer.

In summary, the Bryant 548J is an efficient and reliable gas furnace that embodies advanced heating technology. With features such as high AFUE ratings, modulating gas valves, variable-speed blowers, and smart home compatibility, it stands out as a formidable option for modern residential heating solutions.