Bryant 577D----A Safety Considerations, Introduction, Receiving and Installation, Check Equipment

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577D-- -- A

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. consult local building codes, the current editions of the National Fuel Gas Code (NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code (NEC) NFPA 70.

In Canada refer to the current editions of the National Standards of Canada CAN/CSA-B149.1 and .2 Natural Gas and Propane Installation codes, and Canadian Electrical Code CSA C22.1

Recognize safety information. This is the safety-alert symbol . When you see this symbol on the unit and in instructions or manu- als, be alert to the potential for personal injury. Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in per- sonal injury or death. CAUTION is used to identify unsafe practic- es which may result in minor personal injury or product and prop- erty damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing or servicing system, always turn off main power to system and install lockout tag. There may be more than one disconnect switch. Turn off accessory heater power switch if applicable.

!WARNING

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this warning could result in personal injury or equipment damage.

Puron (R-410A) systems operate at higher pressures than standard R-22 systems. DO NOT use R-22 service equipment or components on Puron (R-410A) equipment. Ensure service equipment is rated for Puron (R-410A).

!CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury.

When removing access panels or performing maintenance functions inside your unit, be aware of sharp sheet metal parts and screws. Although special care is taken to reduce sharp edges to a minimum, be extremely careful when handling parts or reaching into the unit.

INTRODUCTION

The 577D--A packaged unit is a fully self-contained combination Category I gas heating/electric air conditioner designed for outdoor installation (See Fig. 1). Standard units are shipped in a horizontal-discharge configuration for installation on a rooftop, or on cement slab (See Fig. 4 for roof curb dimensions). Standard

units can be converted to downflow (vertical) discharge configurations for rooftop applications.

Models with an N in the thirteenth position of the model number are dedicated Low NOx units designed for California installations. These models meet the California maximum oxides of nitrogen (NOx) emissions requirements of 40 nanograms/joule or less as shipped from the factory and must be installed in California Air Quality Management Districts or any other regions in North America where a Low NOx rule exists.

In gas heating mode, this unit is designed for a minimum continuous return-air temperature of 55_F (13_C) db and a maximum continuous return-air temperature of 80_F (27_C) db. Failure to follow these return-air temperature limits may affect reliability of heat exchangers, motors, and other components.

NOTE: Low NOx requirements apply only to natural gas installations.

RECEIVING AND INSTALLATION

Check Equipment

IDENTIFY UNIT

The unit model number and serial number are printed on the unit informative plate. Check this information against shipping papers.

INSPECT SHIPMENT

Inspect for shipping damage before removing packaging material. If unit appears to be damaged or is torn loose from its anchorage, have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manufacturer is not responsible for any damage incurred in transit. Check all items against shipping list. Immediately notify the nearest distributor office if any item is missing. To prevent loss or damage, leave all parts in original packages until installation.

If the unit is to be mounted on a curb in a downflow application, review “Configuring Units for Downflow Discharge” to determine which method is to be used to remove the downflow panels before rigging and lifting into place. The panel removal process may require the unit to be on the ground.

Provide Unit Support

IMPORTANT: The unit must be secured to the curb by installing screws through the bottom of the curb flange and into the unit base rails. When installing large base units onto the common curb, the screws must be installed before allowing the full weight of the unit to rest on the curb. A minimum of six screws are required for large base units. Failure to secure unit properly could result in an unstable unit. See Warning near Rigging/Lifting information and accessory curb instructions for more details.

For hurricane tie downs, contact distributor for details and PE (Professional Engineering) Certificate, if required.

ROOF CURB

Install accessory roof curb in accordance with instructions shipped with curb (See Fig. 4). Install insulation, cant strips, roofing, and flashing. Ductwork must be attached to curb.

IMPORTANT: The gasketing of the unit to the roof curb is critical for a water tight seal. Install gasketing material supplied with the roof curb. Improperly applied gasketing also can result in air leaks and poor unit performance.

Curb should be level to within 1/4 in. (6.35 m) (See Fig. 2). This is necessary for unit drain to function properly. Refer to accessory roof curb installation instructions for additional information as required.

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Contents Installation Instructions Table of ContentsIntroduction Safety ConsiderationsReceiving and Installation Check EquipmentUNIT/STRUCTURAL Damage Hazard Provide ClearancesRig and Place Unit Unit Falling HazardCPRFCURB011A00 SizeCPRFCURB010A00 CPRFCURB012A00577D--A24-30 Unit Dimensions 577D--A36-60 Unit Dimensions Physical Data Unit 577D--A Physical Data Con’t Unit 577D--A Indoor FANPersonal Injury Hazard Select and Install DuctworkCabinet Model Rigging Weight Provide for Condensate Disposal Supply and Return Duct OpeningCarbon Monoxide Poisoning Hazard Install Flue HoodInstall Gas Piping Unit Component Damage Hazard Install Electrical ConnectionsFire or Explosion Hazard Maximum Gas Flow Capacity Outdoor Air Temperature Sensor OATElectronic Air Cleaner Humidifier ConnectionsTypical Installation Control Plate START-UP Unit Start-Up and TroubleshootingPRE-START-UP FIRE, EXPLOSION, Electrical Shock and Environmental HazardIndoor Fan Motor Troubleshooting Furnace Control Troubleshooting577D a A10217L A10219C A10219L HP/AC Control Troubleshooting Sequence of Operation Unit Operation HazardAir Delivery and Temperature Rise at Rated Heating Input Heat Pump/Air Conditioner Board Status CodesCheck GAS Input Natural GAS Dehumidification ModeEvolution Controlled LOW Ambient Cooling Unit Damage HazardAltitude Derate Multiplier for U.S.A Fire and Unit Damage HazardU.S.A CanadaCheck GAS Input Propane GAS Check Burner FlameStart-Up Adjustments Check for Refrigerant LeaksFilter Pressure Drop Table IN. W.C Heating InputsECM Wet Coil Pressure Drop IN. W.C Cooling Charging Table-Subcooling Maintenance Outdoor Coil, Indoor Coil, and Condensate Drain Pan Inducer Pressure SwitchElectrical Controls and Wiring Outdoor FanIndoor Airflow Pressure Switches Refrigerant CircuitRefrigerant Circuit Copeland Scroll Compressor Puron RefrigerantTroubleshooting Final Checks Care and Maintenance Observe all warnings, cautions, and bold text Troubleshooting Chart Cooling Symptom Cause RemedyTroubleshooting Chart Gas Furnace Operation Burners will not ignitePreliminary Information Model no START-UP ChecklistTemperatures III. START-UP Electrical Supply Voltage Compressor Amps

577D----A specifications

The Bryant 577D----A is a highly regarded model in the HVAC industry, representing a blend of efficiency, performance, and advanced technology. This heating and cooling unit is designed to cater to a variety of residential and light commercial applications, making it a versatile choice for consumers looking to enhance their indoor climate control systems.

One of the standout features of the Bryant 577D----A is its impressive energy efficiency rating. With a Seasonal Energy Efficiency Ratio (SEER) typically exceeding 14, this model is engineered to reduce energy consumption, helping homeowners lower their utility bills while minimizing environmental impact. The unit also employs a two-stage cooling system, which not only improves comfort by maintaining more consistent temperatures but also provides enhanced dehumidification during hotter months.

The technology used in the Bryant 577D----A is noteworthy. The unit incorporates a variable-speed compressor that adapts to the specific cooling or heating needs of the space, ensuring optimal performance at all times. This advanced feature not only contributes to energy savings but also allows for quieter operation compared to single-stage systems. The inclusion of a smart thermostat integration further enhances convenience, enabling users to manage their HVAC system remotely and optimize settings according to their schedules.

Additional characteristics of the Bryant 577D----A include a durable construction designed to withstand various environmental conditions. The cabinet is made from quality materials that protect against corrosion and other factors that could affect the unit's longevity. Furthermore, the unit operates quietly, thanks to sound-dampening technologies, which is a significant advantage for residential areas where noise can be a concern.

Maintenance is also simplified with the Bryant 577D----A, as it is equipped with self-diagnostics for easy troubleshooting. This feature alerts users to potential issues before they escalate, promoting efficient operation and prolonging the lifespan of the system.

In conclusion, the Bryant 577D----A stands out as a superior choice for those seeking reliability and efficiency in their HVAC solutions. With its energy-efficient operation, advanced technologies, and robust construction, it serves as a valuable investment for homeowners committed to comfort and sustainability.
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