Bryant 548J manual

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9.Fan/Filter Status Switch:

a.Switch shall provide status of indoor evaporator fan (ON/OFF) or filter (CLEAN/DIRTY).

b.Status shall be displayed either over communication bus (when used with direct digital controls) or with an indicator light at the thermostat.

10.Propeller Power Exhaust:

a.Power exhaust shall be used in conjunction with an integrated economizer.

b.Independent modules for vertical or horizontal return configurations shall be available.

c.Horizontal power exhaust is shall be mounted in return ductwork.

d.Power exhaust shall be controlled by economizer controller operation. Exhaust fans shall be energized when dampers open past the 0-100% adjustable setpoint on the economizer control.

11.Roof Curbs (Vertical):

a.Full perimeter roof curb with exhaust capability providing separate air streams for energy recovery from the exhaust air without supply air contamination.

b.Formed galvanized steel with wood nailer strip and shall be capable of supporting entire unit weight.

c.Permits installation and securing of ductwork to curb prior to mounting unit on the curb.

12.High-Static Indoor Fan Motor(s) and Drive(s) (04-09):

a.High-static motor(s) and drive(s) shall be factory-installed to provide additional performance range.

13.Thru-the-Bottom Utility Connectors:

a.Kit shall provide connectors to permit electrical connections to be brought to the unit through the basepan.

14.Fan/Filter Status Switch:

a.Provides status of indoor (evaporator) fan (ON/ OFF) or filter (CLEAN/DIRTY). Status shall be displayed over communication bus when used with direct digital controls or with an indicator light at the thermostat.

15.Outdoor Air Enthalpy Sensor:

a.The outdoor air enthalpy sensor shall be used to provide single enthalpy control. When used in conjunction with a return air enthalpy sensor, the unit will provide differential enthalpy control. The sensor allows the unit to determine if outside air is suitable for free cooling.

16.Return Air Enthalpy Sensor:

a.The return air enthalpy sensor shall be used in conjunction with an outdoor air enthalpy sensor to provide dif- ferential enthalpy control.

17.Indoor Air Quality (CO2) Sensor:

a.Shall be able to provide demand ventilation indoor air quality (IAQ) control.

b.The IAQ sensor shall be available in duct mount, wall mount, or wall mount with LED display. The setpoint shall have adjustment capability.

18.Smoke detectors:

a.Shall be a Four-Wire Controller and Detector.

b.Shall be environmental compensated with differential sensing for reliable, stable, and drift-free sensitivity.

c.Shall use magnet-activated test/reset sensor switches.

d.Shall have tool-less connection terminal access.

e.Shall have a recessed momentary switch for testing and resetting the detector.

f.Controller shall include:

(1.) One set of normally open alarm initiation contacts for connection to an initiating device circuit on a fire alarm control panel.

(2.) Two Form-C auxiliary alarm relays for interface with rooftop unit or other equipment.

(3.) One Form-C supervision (trouble) relay to control the operation of the Trouble LED on a remote test/reset station.

(4.) Capable of direct connection to two individual detector modules.

(5.) Can be wired to up to 14 other duct smoke detectors for multiple fan shutdown applications.

19.Time Guard

a.Shall prevent compressor short cycling by providing a 5-minute delay (±2 minutes) before restarting a com- pressor after shutdown for any reason.

b.One device shall be required per compressor.

20.Electric Heat:

a.Heating Section

(1.) Heater element open coil resistance wire, nickel-chrome alloy, 0.29 inches inside diameter, strung through ceramic insulators mounted on metal frame. Coil ends are staked and welded to terminal screw slots.

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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.
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