Bryant 604D--A Supply and Return Duct Openings, Personal Injury and Electrical Operation Hazard

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604D-- -- A

!WARNING

PERSONAL INJURY AND ELECTRICAL OPERATION HAZARD

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

For vertical supply and return units, tools or parts could drop into ductwork Install a 90 degree turn in the return ductwork between the unit and the conditioned space. If a 90 degree elbow cannot be installed, then a grille of sufficient strength and density should be installed to prevent objects from falling into the conditioned space. Units with electric heaters require 90 degree elbow in supply duct.

When designing and installing ductwork, consider the following:

1.All units should 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.

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 cooling air quantity (cfm). The minimum air quantity for proper electric heater operation is listed in Table 2. Heater limit switches may trip at air quantities below those recommended.

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.

Converting Horizontal Discharge Units to Downflow (Vertical) Discharge Units

!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 and install lockout tag before starting any service work.

2.Remove horizontal (metal) ductcovers to access vertical (downflow) discharge duct knockouts in unit basepan. (See Fig. 7.)

3.After completing unit conversion, perform all safety checks and power up unit.

Horizontal Duct Covers

A09061

Basepan

 

Downflow

 

(Vertical)

Basepan

Supply

Downflow

Knockout

(Vertical)

 

 

Return

 

Knockout

 

A09088

Fig. 7 - Supply and Return Duct Openings

!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 connections 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 (Fig. 7) shipped on unit from factory. Insure openings are air and watertight.

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

OPTIONAL

OPTIONAL

RETURN

SUPPLY

AIR

AIR

OPENING

OPENING

2˝

 

(50.8mm)

 

EVAP. COIL

COND. COIL

A07926

Fig. 8 - Slab Mounting Detail

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Contents Table of Contents Safety ConsiderationsReceiving and Installation IntroductionCheck Equipment Provide Unit SupportProperty Damage Hazard Rig and Place UnitUnit Falling Hazard 604D--A24-36 Unit Dimensions 604D--A42-60 Unit Dimensions Size CPRFCURB010A00CPRFCURB012A00 CPRFCURB013A00Rigging/Lifting of Unit See Fig Select and Install DuctworkCorner Weights Small Cabinet Corner Weights Large Cabinet Supply and Return Duct Openings Personal Injury and Electrical Operation HazardInstall Electrical Connections Provide for Condensate DisposalHigh-Voltage Connections Unit Component Damage HazardSpecial Procedures for 208-V Operation Accessory Electric Heaters InstallationControl Voltage Connections Standard ConnectionsPhysical Data Unit 604D--A Minimum Airflow for Reliable Electric Heater Operation CFM604D a Cont. Ladder Wiring Schematics 208/230-1-60 Connection Wiring Schematics 208/230-3-60 Cont. Ladder Wiring Schematics 208/230-3-60 Connection Wiring Diagram Cont. Ladder Wiring Diagram Start-Up Adjustments START-UPCheck for Refrigerant Leaks Checking Cooling and Heating Control OperationChecking and Adjusting Refrigerant Charge Indoor Airflow and Airflow Adjustments604D--A Sequence of Operation Unit Operation HazardTwo Cooling Fan Speeds Set-up Dehumidification feature used Single Speed Cooling With Higher Electric Heat SpeedContinuous Fan Operation Color Coding for Indoor Fan Motor LeadsTypical Heat Pump Operation, Cooling Mode Air Filter MaintenanceDefrost Control Outdoor Coil, Indoor Coil, and Condensate Drain Pan Outdoor FanFilter Pressure Drop Table IN. W.C A24-60 Series a604D--A Wet Coil Pressure Drop IN. W.C Cooling Charging Table-Subcooling Electrical Controls and Wiring Refrigerant CircuitPressure Switches Loss of Charge SwitchHigh-Pressure Switch Copeland Scroll Compressor Puron RefrigerantSystem Information TroubleshootingSTART-UP Checklist Puronr R-410A Quick Reference Guide Troubleshooting Chart Symptom Cause RemedyTemperatures Remove and Store in Job FilesPreliminary Information Model no III. START-UP Electrical Supply Voltage Compressor AmpsVertical Economizer Factory Installed Option General AccessoriesInstallation Small ChassisFilter Part Number Part NumberHood Divider Removed Economizer Hood Assembly Large Chassis Horizontal Return Duct Cover Panel and Hood Divider RemovalLeft Hood Side Hood Assembly Configuration Supply AIR Temperature SAT SENSOR-The supplyTemperature Economizer Standard Sensors11.7C 12.8C 14.4C 17.2C 20C 22.8C 25.6C Economizer Controller 604D-- -- a Economizer Wiring Diagram A10200 Cont. Ladder Wiring Diagram A10199 604D-- -- a 604D-- -- a Operation CO2 Sensor Standard SettingsCO2 Sensor Standard Settings Economizer Input/Output Logic Troubleshooting 604D--A 30-36 3 Phase with Economizer 604D--A 42-60 3 Phase with Economizer

604D--A specifications

The Bryant 604D--A is a remarkable heating and cooling unit designed for both efficiency and performance, making it an ideal choice for homeowners seeking optimal climate control solutions. Its impressive array of features, technologies, and characteristics sets it apart in the HVAC market.

One of the standout features of the Bryant 604D--A is its advanced two-stage cooling system. This design allows the unit to adjust its cooling output based on the current temperature and humidity levels, which ensures a comfortable indoor environment while optimizing energy consumption. This two-stage operation is particularly beneficial during transitional seasons when temperatures fluctuate, providing a quieter operation and increased efficiency.

The Bryant 604D--A incorporates high-efficiency compressor technology that maximizes cooling capability while minimizing energy usage. This energy-efficient operation is further enhanced by its excellent SEER (Seasonal Energy Efficiency Ratio) rating. By achieving a high SEER rating, the 604D--A not only promotes energy savings but also contributes to lower utility bills, making it an economically sound investment for homeowners.

Another key characteristic of the Bryant 604D--A is its durable construction. Built with quality materials, this unit is designed to withstand varying weather conditions, ensuring longevity and reliable performance over the years. Its robust design also minimizes vibrations and noise, making it a quieter option compared to many competing systems.

Smart technology integration is also a significant highlight of the Bryant 604D--A. It features wireless connectivity, allowing users to control their heating and cooling settings remotely through a smartphone app. This modern convenience enables homeowners to adjust their indoor climate on-the-go, enhancing user comfort and convenience.

Additionally, the Bryant 604D--A is equipped with an advanced filtration system that helps to improve indoor air quality. By capturing dust, pollen, and other particles, this filtration system ensures that the air circulating within the home remains clean and healthy.

In conclusion, the Bryant 604D--A is a high-performance HVAC unit that excels in energy efficiency, durability, and convenience. With its advanced technology, quiet operation, and user-friendly features, it stands as a premier choice for those looking to elevate their home comfort while maintaining cost-effectiveness and sustainability. Whether for new installations or as a replacement for an outdated system, the Bryant 604D--A is undoubtedly a leader in modern climate control solutions.
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