Bryant 581A operation manual Electrical, Temperatures, Pressures, General

Page 40

 

START-UP CHECKLIST

MODEL NO.:

 

SERIAL NO.:

DATE:

 

TECHNICIAN:

I. PRE-START-UP

VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT

VERIFY INSTALLATION OF INDOOR FAN MOTOR ADJUSTMENT BOLT (155) OR ADJUSTMENT BOLT AND PLATE (180, 240 ONLY)

OPEN LIQUID LINE SERVICE VALVE

VERIFY INSTALLATION OF ECONOMIZER HOOD

VERIFY INSTALLATION OF EXHAUST HOOD

VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS

VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT

VERIFY GAS PRESSURE TO UNIT GAS VALVE IS WITHIN SPECIFIED RANGE

CHECK GAS PIPING FOR LEAKS

CHECK THAT INDOOR-AIR FILTER IS CLEAN AND IN PLACE

CHECK THAT OUTDOOR AIR INLET SCREEN IS IN PLACE

VERIFY THAT UNIT IS LEVEL

CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE, AND VERIFY SETSCREWIS TIGHT VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED

￿VERIFY THAT SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION VERIFY THAT CRANKCASE HEATER HAS BEEN ENERGIZED 24 HOURS BEFORE START-UP

II. START-UP

ELECTRICAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUPPLY VOLTAGE L1-L2

 

 

 

 

 

 

L2-L3

 

 

L3-L1

 

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR AMPS — COMPRESSOR NO. 1

 

L1

 

 

 

 

 

L2

 

 

 

L3

 

 

 

 

 

— COMPRESSOR NO. 2

L1

 

 

 

 

 

L2

 

 

 

 

L3

 

 

 

 

SUPPLY FAN AMPS

 

 

 

EXHAUST FAN AMPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEMPERATURES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR-AIR TEMPERATURE

 

 

 

 

 

 

 

 

F DB (Dry Bulb)

 

 

 

 

 

 

 

 

 

 

 

RETURN-AIR TEMPERATURE

 

 

 

 

 

 

 

 

F DB

 

 

 

 

 

 

F WB (Wet Bulb)

 

 

COOLING SUPPLY AIR

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS HEAT SUPPLY AIR

 

 

 

 

 

 

 

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRESSURES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS INLET PRESSURE

 

 

 

 

 

 

 

 

IN. WG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS MANIFOLD PRESSURE

STAGE NO. 1

 

 

 

 

 

 

IN. WG

 

STAGE NO. 2

 

IN. WG

REFRIGERANT SUCTION

CIRCUIT NO. 1

 

 

 

 

 

PSIG

 

CIRCUIT NO. 2

 

 

PSIG

REFRIGERANT DISCHARGE

CIRCUIT NO. 1

 

 

 

 

 

PSIG

 

CIRCUIT NO. 2

 

 

PSIG

VERIFY REFRIGERANT CHARGE USING CHARGING CHART ON PAGE 29.

￿GENERAL

ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS

CUT ALONG DOTTED LINE

CUT ALONG DOTTED LINE

Copyright 1999 Bryant Heating & Cooling Systems

CL-1

CATALOG NO. 5358-101

Image 40
Contents Safety Considerations ContentsInstallation Provide Unit Support Roof Curb Details Alternate Unit Support II. RIG and Place UnitPositioning Roof MountBase Unit Dimensions 581A155 Base Unit Dimensions 581A240 Physical Data Unit 581AInstall Flue Hood and Wind Baffle III. Field Fabricate DuctworkIV. Make Unit Duct Connections 581A180, 240 Unit ShownVII. Install GAS Piping Field Power SupplyVI. Trap Condensate Drain VIII. Make Electrical ConnectionsField Control Wiring Make OUTDOOR-AIR Inlet AdjustmentsManual Outdoor-Air Damper Optional EconomizerElectrical Data FLA LRA MCA MocpInstall OUTDOOR-AIR Hood 25% Outdoor-Air Section DetailsEnthalpy Control Installation Seal Strip LocationXI. Install ALL Accessories Motormaster I Control Installation 581A155 and 180 OnlyII. Service Valves IV. Refrigerant Service PortsSTART-UP Unit PreparationVI. Internal Wiring XII. Accessory Economizer AdjustmentVII. Crankcase Heaters VIII. Evaporator FANBhp Brake Horsepower Fan Performance 581A180270 Low Heat Units Fan Performance 581A240270 Low Heat Units 753 915 844 1077 949 1287 1047 753 942 844 1101 949 Fan Performance 581A180360 High Heat Units Fan Performance 581A240360 High Heat Units Evaporator Fan Motor Specifications Accessory/FIOP Economizer Static Pressure in. wgFan RPM at Motor Pulley Setting Air Quantity LimitsXIII. GAS Heat XIV. Base Unit OperationService Cleaning IV. Evaporator FAN Service and Replacement II. LubricationBelt Tension Adjustment VI. CONDENSER-FAN Adjustment581A155 and 180 Units Fig 581A240 Units FigVIII. Power Failure VII. Economizer AdjustmentIX. Refrigerant Charge GAS Valve Adjustment XI. Main BurnersXII. Filter Drier XIII. Protective DevicesXVI. Replacement Parts XVII. Diagnostic LedsXIV. Relief Devices XV. Control CircuitSpark Gap Adjustment Typical Wiring Schematic and Typical Component Arrangement Typical Wiring Schematic 581A180, 208/230 V Unit Shown Typical Component Arrangement 581A180 Shown Cooling Service Analysis TroubleshootingProblem Cause Remedy Heating Service Analysis Burners will not igniteIGC Control Heating and Cooling Packaged Service Training Call for Free CatalogPage Temperatures ElectricalPressures General
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581A specifications

The Bryant 581A is a pivotal model in the realm of heating, ventilation, and air conditioning (HVAC) systems, known for its robust performance and energy efficiency. As part of the Bryant product lineup, the 581A offers a blend of innovative technologies combined with reliable engineering, making it a suitable choice for both residential and light commercial applications.

One of the standout features of the Bryant 581A is its outstanding energy efficiency. With a Seasonal Energy Efficiency Ratio (SEER) rating of up to 16, this model meets Energy Star qualifications, ensuring that homeowners can enjoy lower utility bills while helping to reduce their environmental footprint. The efficiency is further enhanced by the unit’s environmentally friendly refrigerant, which not only improves performance but also aligns with modern sustainability standards.

Another key characteristic of the Bryant 581A is its durable construction. Designed to withstand various weather conditions, the unit features a robust cabinet that protects internal components. This durability not only prolongs the lifespan of the system but also minimizes the need for frequent maintenance or repairs. The coil design is optimized for heat transfer efficiency, enhancing the unit's overall performance in both cooling and heating modes.

In terms of technology, the Bryant 581A incorporates advanced control systems that enable precise temperature regulation. The multi-stage cooling capabilities ensure that the system can adapt to varying temperature demands, providing comfort in all seasons. Additionally, the model is compatible with smart thermostats, allowing homeowners to control their HVAC system remotely via smartphone or other connected devices.

Noise reduction is another aspect where the Bryant 581A excels. Equipped with a variable-speed compressor and sound-dampening features, this model operates quietly, minimizing disruption in residential or office environments. This focus on acoustic comfort makes it an ideal choice for those who value a peaceful living or working space.

Overall, the Bryant 581A represents an excellent balance of efficiency, durability, and modern technology. With features aimed at enhancing user comfort and reducing operational costs, it stands out as a reliable solution in the competitive HVAC market. Whether for new installations or replacements, the Bryant 581A is a testament to the brand’s commitment to quality and innovation in home climate control.