Bryant 577D----A Provide for Condensate Disposal, Supply and Return Duct Opening

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577D-- -- A

2.Avoid abrupt duct size increases and reductions. Abrupt change in duct size adversely affects air performance.

IMPORTANT: Use flexible connectors between ductwork and unit to prevent transmission of vibration. Use suitable gaskets to ensure weather tight and airtight seal. When electric heat is installed, use fireproof canvas (or similar heat resistant material) connector between ductwork and unit discharge connection. If flexible duct is used, insert a sheet metal sleeve inside duct. Heat resistant duct connector (or sheet metal sleeve) must extend 24-in. (610 mm) from electric heater element.

3.Size ductwork for max possible air flow (See Table 1).

4.Seal, insulate, and weatherproof all external ductwork. Seal, insulate and cover with a vapor barrier all ductwork passing through conditioned spaces. Follow latest Sheet Metal and Air Conditioning Contractors National Association (SMACNA) and Air Conditioning Contractors Association (ACCA) minimum installation standards for residential heating and air conditioning systems.

5.Secure all ducts to building structure. Flash, weatherproof, and vibration-isolate duct openings in wall or roof according to good construction practices.

6.Read unit rating plate for any required clearances around ductwork.

Configuring Units for Downflow (Vertical) Discharge

!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.

1.Open all electrical disconnects before starting any service work.

2.Remove horizontal (metal) duct covers to access vertical (downflow) discharge duct knockouts in unit basepan. (See Fig. 8.)

!CAUTION

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in property damage.

Collect ALL screws that were removed. Do not leave screws on rooftop as permanent damage to the roof may occur.

To remove downflow return and supply knockout covers, break front and right side connecting tabs with a screwdriver and hammer. Push cover down to break rear and left side tabs.

NOTE: These panels are held in place with tabs similar to an electrical knockout. Reinstall horizontal duct covers (see Fig. 8) shipped on unit from factory. Insure openings are air and watertight.

The design and installation of the duct system must be in accordance with the standards of the NFPA for installation of nonresidence-type air conditioning and ventilating systems, NFPA 90A or residence-type, NFPA 90B; and/or local codes and ordinances.

Adhere to the following criteria when selecting, sizing, and installing the duct system:

1.Units are shipped for horizontal duct installation (by removing duct covers).

Horizontal Duct Covers

A09076

Basepan

 

Downflow

 

(Vertical)

Basepan

Supply

Downflow

Knockout

(Vertical)

 

 

Return

 

Knockout

 

A09077

Fig. 8 - Supply and Return Duct Opening

2.Select and size ductwork, supply-air registers, and return-air grilles according to American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) recommendations.

3.Use flexible transition between rigid ductwork and unit to prevent transmission of vibration. The transition may be screwed or bolted to duct flanges. Use suitable gaskets to ensure weather-tight and airtight seal.

4.All units must have field-supplied filters or accessory filter rack installed in the return-air side of the unit. Recommended sizes for filters are shown in Table 1.

5.Size all ductwork for maximum required airflow (either heating or cooling) for unit being installed. Avoid abrupt duct size increases or decreases or performance may be affected.

6.Adequately insulate and weatherproof all ductwork located outdoors. Insulate ducts passing through unconditioned space, and use vapor barrier in accordance with latest issue of Sheet Metal and Air Conditioning Contractors National Association (SMACNA) and Air Conditioning Contractors of America (ACCA) minimum installation standards for heating and air conditioning systems. Secure all ducts to building structure.

7.Flash, weatherproof, and vibration isolate all openings in building structure in accordance with local codes and good building practices.

Provide for Condensate Disposal

NOTE: Ensure that condensate-water disposal methods comply with local codes, restrictions, and practices.

The units dispose of condensate through a 3/4 -in. NPT female fitting that exits on the compressor end of the unit. Condensate water can be drained directly onto the roof in rooftop installations (where permitted) or onto a gravel apron in ground level installations. Install a field-supplied condensate trap at end of condensate connection to ensure proper drainage. Make sure that

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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 FANCabinet Model Rigging Weight Select and Install DuctworkPersonal Injury Hazard Provide for Condensate Disposal Supply and Return Duct OpeningInstall Gas Piping Install Flue HoodCarbon Monoxide Poisoning Hazard Fire or Explosion Hazard Install Electrical ConnectionsUnit Component Damage 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 LeaksECM Wet Coil Pressure Drop IN. W.C Heating InputsFilter Pressure Drop Table 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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