Bryant 548J manual

Page 72

548J

2.Optional Pre-coated aluminum-fin condenser coils: on all models.

a.Shall have a durable epoxy-phenolic coating to provide protection in mildly corrosive coastal environments.

b.Coating shall be applied to the aluminum fin stock prior to the fin stamping process to create an inert barrier between the aluminum fin and copper tube.

c.Epoxy-phenolic barrier shall minimize galvanic action between dissimilar metals.

3.Optional Copper-fin evaporator and condenser coils: on all models.

a.Shall be constructed of copper fins mechanically bonded to copper tubes and copper tube sheets.

b.Galvanized steel tube sheets shall not be acceptable.

c.A polymer strip shall prevent coil assembly from contacting the sheet metal coil pan to minimize potential for galvanic corrosion between coil and pan.

4.Optional E-coated aluminum-fin evaporator and condenser coils: on all models.

a.Shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material bridging between fins.

b.Coating process shall ensure complete coil encapsulation of tubes, fins and headers.

c.Color shall be high gloss black with gloss per ASTM D523-89.

d.Uniform dry film thickness from 0.8 to 1.2 mil on all surface areas including fin edges.

e.Superior hardness characteristics of 2H per ASTM D3363-92A and cross-hatch adhesion of 4B-5B per ASTM D3359-93.

f.Impact resistance shall be up to 160 in.-lb (ASTM D2794-93).

g.Humidity and water immersion resistance shall be up to minimum 1000 and 250 hours respectively (ASTM D2247-92 and ASTM D870-92).

h.Corrosion durability shall be confirmed through testing to be no less than 1000 hours salt spray per ASTM B117-90.

23 81 19.13.K. Refrigerant Components

1.Refrigerant circuit shall include the following control, safety, and maintenance features:

a.Fixed orifice metering system shall prevent mal-distribution of two-phase refrigerant by including multiple fixed orifice devices in each refrigeration circuit. Each orifice is to be optimized to the coil circuit it serves.

b.Refrigerant filter drier.

c.Service gauge connections on suction and discharge lines.

d.Pressure gauge access through a specially designed access port in the top panel of the unit.

e.Suction line accumulator to provide protection in all operating modes from cooling, heating and reverse cycle switching.

2.There shall be gauge line access port in the top of the rooftop, covered by a black, removable plug.

a.The plug shall be easy to remove and replace.

b.When the plug is removed, the gauge access port shall enable maintenance personnel to route their pressure gauge lines.

c.This gauge access port shall facilitate correct and accurate condenser pressure readings by enabling the read- ing with the compressor access panel on.

d.The plug shall be made of a leak proof, UV-resistant, composite material.

3.Compressors

a.Unit shall use one fully hermetic, scroll compressor for each independent refrigeration circuit.

b.Models shall be available with single compressor designs on 04-12 models, plus additional 2 compressor (stage) models from 08-09 sizes.

c.Compressor motors shall be cooled by refrigerant gas passing through motor windings.

d.Compressors shall be internally protected from high discharge temperature conditions.

e.Compressors shall be protected from an over-temperature and over-amperage conditions by an internal, motor overload device.

f.Compressor shall be factory mounted on rubber grommets.

g.Compressor motors shall have internal line break thermal, current overload and high pressure differential pro- tection.

h.Crankcase heaters shall be utilized on all models (except 04 size) to protect compressor with specific refriger- ant charge.

23 81 19.13.L. Filter Section

1.Filters access is specified in the unit cabinet section of this specification.

2.Filters shall be held in place by a pivoting filter tray, facilitating easy removal and installation.

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Contents Product Data Table of Contents Features and Benefits Model Number Nomenclature Factory Options AND/OR Accessories FACTORY-INSTALLED Options and FIELD-INSTALLED AccessoriesOption Accessory FieldConvenience Outlet powered or un-powered Power Exhaust Pressure ReliefFilter or Fan Status Switches Economizer dry-bulb or enthalpyMotormaster Head Pressure Controller Alternate Motors and DrivesThru-the-Base Connections Electric HeatersARI Cooling Rating Tables Minimum Maximum Airflows Electric Heat Sound Performance TablePhysical Data Tons8.5 Tons 548J*08 548J*09Motor Frame Size Fan Qty / Type Electric Heat Electrical Data Single Point KIT Part Number Crsinglexxxxxx UnitElectric Heater NOM APP Part Number PWR Type With Pwrd C.OCont. Electric Heat Electrical Data 208/230Electric Drive X13 5 speed/torque motor 105A00 16.0 12.0/14.7 038A00 Crheaterxxxxxx Without P.E With P.ECont. Electric Heat Electrical Data Tons Cool460 115A00 33.0 30.3 050A00 575Weights & Dimensions Dimensions 548JDimension Condition Unit disconnect is mounted on panel356 548J*04-07A 610C08679 C08680 356 Application Data Selection Procedure with 548J*07 Example Ambient Temperature Cooling Capacities548J*04 105 115 EA dB 900548J*05 105 115 EA dB 12001400 548J*06 105 115 EA dB 15002250 2500548J*07 105 115 EA dB 18002100 2400548J*08 105 115 EA dB 26253375 3750548J*09 105 115 EA dB 25502975 3400Temperature AIR Entering Outdoor Coil F db at 70% rh Heating Capacities548J*04 ReturnHeating Capacity Heating Capacity Tons 548J*08Static Pressure Adders Factory Options and/or Accessories General fan performance notesFAN Performance 548J*04 Electric DRIVE, X13 MOTOR, 3 TON Horizontal Supply548J*04 Electric DRIVE, X13 MOTOR, 3 TON Vertical Supply Speed Torque CFM ESP BHP548J*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 548J*08 2250 5092250 788 847 2250 528548J*09 2550 468 5462550 806 863 2550 495 570Pulley Adjustment Unit MOTOR/DRIVE Combo Motor Pulley Turns OpenECONOMIZER, Barometric Relief and PE Performance 2000 1000Electrical Information 548J*04 Stage Cooling548J*05 Stage Cooling 548J*06 Stage Cooling548J*07 Stage Cooling 548J*08 Stage Cooling Tons548J*09 Stage Cooling Tons Range RLA LRAMCA/MOCP Determination Without C.O. or Unpwrd C.O ELEC. HTRUnit IFM Without P.E With P.E Type FLA DISC. SizeCont. MCA/MOCP Determination Without C.O. or Unpwrd C.O ELEC. HTR UnitType FLA MCA70/74 76/8279/84 46/48Unit IFM Type NOM STD MED HighSee FLA DISC. Size MCA Mocp LRA41.5 197 65/6878/84 43.8 23445.7 205 69/7282/88 48.0 242MCA/MOCP Determination with Pwrd C.O ELEC. HTR With Pwrd C.O Unit IFM Without P.E With P.ECont. MCA/MOCP Determination with Pwrd C.O 111113 10846.5 33.320.2 29.2Electric 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 50.5 210 74/7888/93 52.8 247Typical Wiring Diagrams Stage Cooling Typical Power DiagramC09065 Multi-Protocol Option Diagram Stage Typical Wiring Diagram C09064 Sequence of Operation Automatic changeover Continuous air circulationCycle-LOCprotection Emergency heatGuide Specifications 548J*04-09 Hvac Guide Specifications23 09 33 Electric and Electronic Control System for Hvac 23 09 93 Sequence of Operations for Hvac Controls23 40 13 Panel Air Filters 23 81 19 Self-Contained Air Conditioners548J 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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