Bryant 548D START-UP Checklist, Preliminary Information, III. START-UP Electrical, Temperatures

Page 40

START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

 

MODEL NO.: _______________________________________

SERIAL NO. ___________________________________________

DATE: _____________________________________________

TECHNICIAN: _________________________________________

UNIT NO.: _________________________________________

JOB LOCATION: _______________________________________

 

JOB NAME: ____________________________________________

II. PRE-START-UP (insert checkmark in box as each item is completed)

VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE

VERIFY THAT UNIT INSTALLATION IS LEVEL

CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE

AND SETSCREW TIGHTNESS

￿CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS ENSURE BELT TENSION AND BLOWER PULLEYS ARE PROPERLY ALIGNED

III.START-UP

ELECTRICAL

 

 

 

 

 

SUPPLY VOLTAGE

L1-L2

 

L2-L3

 

L3-L1

CIRCUIT NO. 1 COMPRESSOR AMPS

L1

 

L2

 

L3

CIRCUIT NO. 2 COMPRESSOR AMPS

L1

 

L2

 

L3

INDOOR FAN AMPS

L1

 

L2

 

L3

TEMPERATURES

 

 

 

 

OUTDOOR-AIR TEMPERATURE

 

DB (dry bulb)

 

RETURN-AIR TEMPERATURE

 

DB

 

WB (wet bulb)

COOLING SUPPLY AIR

 

DB

 

WB

CUT ALONG DOTTED LINE

PRESSURES (Cooling Mode)

 

 

 

 

REFRIGERANT SUCTION, CIRCUIT 1

 

PSIG

 

° F

REFRIGERANT SUCTION, CIRCUIT 2

 

PSIG

 

° F

REFRIGERANT DISCHARGE, CIRCUIT 1

 

PSIG

 

° F

REFRIGERANT DISCHARGE, CIRCUIT 2

 

PSIG

 

° F

￿VERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN CORRECT DIRECTION. VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS ON PAGES 32 AND 33.

CUT ALONG DOTTED LINE

Copyright 2000 Bryant Heating & Cooling Systems

CL-1

CATALOG NO. 5354-805

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Contents Contents Safety ConsiderationsInstallation Provide Unit SupportRoof Curb Details III. Install Condensate Drain Line and External Trap II. Field Fabricate DuctworkIV. RIG and Place Unit PositioningUnit MAX Dimensions Weight Base Unit Dimensions Physical Data Unit Size 548DField Power Supply Make Electrical Connections575-3-60 460-3-60Electrical Data Units Without Electrical Convenience Outlet SIZE†Type RLA LRA FLAMin Electrical Data Units With Electrical Convenience Outlet81/2 Tons FLA VI. Adjust FACTORY-INSTALLED Options 208/230 460 575 Unit VoltageStage Durablade Economizer Installation Durablade Economizer Damper Minimum Position Setting EconoMi$er Component Locations Rear EconoMi$er Flange Installation EconoMi$er Wiring Wiring Diagram for Power Exhaust System VII. Adjust INDOOR-FAN Speed Default Potentiometer SettingsChangeover Set Points Typical Belt-Drive Motor Mounting for Size Fan Rpm at Motor Pulley Settings Indoor-Fan Motor PerformanceUnit INDOOR-FAN Maximum Acceptable Continuous BHPFan Performance 548D090 Vertical Discharge Units Standard Motor Belt DriveFan Performance 548D102 Vertical Discharge Units Fan Performance 548D120 Vertical Discharge Units 548D120 10 Tons Standard and Alternate Motors Belt DriveFan Performance 548D090 Horizontal Discharge Units Fan Performance 548D102 Horizontal Discharge Units Fan Performance 548D120 Horizontal Discharge Units Standard and Alternate Motors Belt DriveInternal Wiring VI. Refrigerant Service PortsPRE-START-UP START-UP Unit PreparationIX. Adjust GAS Input XII. Safety ReliefCooling XI. HeatingService Cleaning Cooling, Units With EconoMi$erDefrost Indoor CoilII. Lubrication IV. Economizer Adjustment Refrigerant ChargeCooling Charging Chart 548D102 Heating and Cooling Troubleshooting TroubleshootingProblem Cause Remedy Durablade Economizer Troubleshooting IFCIFO OATDamper does not open EconoMi$er operation limitedTo minimum position Damper positionTypical Wiring Diagram Must Voltage Page START-UP Checklist TemperaturesPreliminary Information III. START-UP Electrical

548D specifications

The Bryant 548D heat pump stands out in the HVAC market for its robust performance, energy efficiency, and advanced technology. Known for its reliability, this particular model is designed to provide optimal heating and cooling for both residential and light commercial applications.

One of the standout features of the Bryant 548D is its variable-speed compressor, which allows for precise temperature control and enhances comfort levels in any environment. This technology enables the 548D to operate efficiently at different speeds, adjusting its output based on the heating or cooling demand. As a result, homeowners can enjoy consistent temperature regulation without the wide fluctuations typical of single-stage systems.

In addition to the variable-speed compressor, the Bryant 548D utilizes advanced refrigerant technology. It employs the environmentally friendly Puron refrigerant, which not only improves the unit's efficiency but also reduces its carbon footprint. This makes the 548D a sustainable choice for those looking to minimize their environmental impact while still enjoying superior heating and cooling performance.

Another key characteristic of the Bryant 548D is its impressive energy efficiency rating, often exceeding the minimum requirements set by the Department of Energy. With a high Seasonal Energy Efficiency Ratio (SEER) for cooling in warmer months and an excellent Heating Seasonal Performance Factor (HSPF), the 548D minimizes energy consumption while maximizing comfort.

The 548D also features Quiet Operation technology, ensuring that the system runs quietly in the background without disrupting daily activities. This is particularly beneficial for light commercial spaces or homes where noise can be a concern. The sleek design and compact size make the unit easy to install in various settings without occupying excessive space.

Furthermore, Bryant incorporates advanced smart technology within the 548D model. The system can be integrated with smart thermostats, allowing users to monitor and control their heating and cooling settings remotely. This feature not only enhances convenience but also enables homeowners to program their systems for maximum efficiency.

In conclusion, the Bryant 548D heat pump is an exceptional choice for those seeking a reliable, efficient, and technologically advanced heating and cooling solution. Its combination of variable-speed compression, eco-friendly refrigerant, high energy efficiency, and quiet operation positions it well in the competitive HVAC market, making it a top choice for both residential and light commercial applications. By investing in the Bryant 548D, consumers can enjoy superior comfort and lower energy bills year-round.