Bryant 575A Accessory Electric Heat, IV. Make Electrical Connections, Ð6Ð

Page 6

Fig. 6 Ð Fusible Plug Locations

A. Field Power Supply

All units except 208/230-v units are factory wired for the volt- age shown on the nameplate. If the 208/230-v unit is to be connected to a 208-v power supply, the transformer must be rewired by disconnecting the black wire from the 230-v orange wire on the transformer and connecting it to the 208-v red wire from the transformer. The end of the orange wire must then be insulated.

Refer to unit label diagram for additional information. Short wire leads (pigtails) are provided for ®eld wire connections. Use factory-supplied splices or UL approved copper/aluminum connector.

When installing units, provide a disconnect per NEC.

All ®eld wiring must comply with NEC and local requirements.

Install ®eld wiring as follows:

1.Install conduit through side panel openings.

2.Install power lines to connections as shown in Fig. 8. Wrap connections with electrical tape.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (also see Table 4). Voltages between phases must be balanced within

2% and the current within 10%. Use the formula shown in Table 4, Note 2, to determine the percentage of voltage im- balance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to elec- trical components. Such operation invalidates any applicable unit warranty.

B. Accessory Electric Heat

If the system is to be equipped with an accessory electric heater, refer to the 524A-H090 installation instructions and Table 5.

LEGEND

TXV Ð Thermostatic Expansion Valve

NOTE: The 8 o'clock position is shown above.

Fig. 7 Ð TXV Sensing Bulb Location

IV. MAKE ELECTRICAL CONNECTIONS

WARNING: Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit ap- proved for electrical ground when installed in accor- dance with National Electrical Code (NEC) ANSI (American National Standards Institute)/NFPA 70 (National Fire Protection Association) and local electri- cal codes. Failure to follow this warning could result in the installer being liable for personal injury of others.

LEGEND

CÐ Contactor

NEC Ð National Electrical Code

Field Wiring

Factory Wiring

Splice Connection

(Factory Supplied)

Fig. 8 Ð 575A090 Power Wiring Connections

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Contents Safety Considerations Important Ð Read Before InstallingContents InstallationDimensions Ð2ÐRigging Physical DataII. RIG and Mount the Unit MountingIII. Complete Refrigerant Piping Connections Typical Piping Diagram, 575A/524A-H Ð5ÐAccessory Electric Heat IV. Make Electrical ConnectionsÐ6Ð Accessory Electric Heater Data Electrical DataÐ7Ð II. Evacuate and Dehydrate Field Control WiringSTART-UP Preliminary Checks III. Refrigerant and OIL ChargeCooling IV. Refrigerant Service PortsSequence of Operation HeatingVI. Checking Cooling and Heating Control Operation VII. MalfunctionService Cleaning Outdoor CoilIII. Outdoor FAN Adjustment Fig Fan Motor BearingsIV. Compressor Removal Troubleshooting CHART, Heating Cycle Troubleshooting CHART, Cooling Cycle Controls Preliminary InformationOutdoor Unit Indoor UnitStart-Up

575A specifications

The Bryant 575A is a prominent model in Bryant's lineup of heating, ventilation, and air conditioning (HVAC) systems, known for its reliability and efficiency. Designed with advanced technologies and innovative features, the Bryant 575A is an excellent choice for both residential and light commercial applications.

One of the standout features of the Bryant 575A is its impressive energy efficiency. With a Seasonal Energy Efficiency Ratio (SEER) rating that significantly surpasses the minimum standards, the 575A helps homeowners reduce their energy bills while maintaining optimal comfort levels. The system employs variable-speed technology, allowing for precise temperature control and enhanced humidity management. This ensures that the indoor environment remains comfortable year-round, regardless of outdoor conditions.

Incorporating advanced refrigerant management, the Bryant 575A utilizes environmentally friendly R-410A refrigerant. This refrigerant not only minimizes ozone depletion potential but also enhances the overall performance of the system, allowing for efficient heat exchange and quick temperature adjustments. The system's efficiency is further optimized by its multi-stage cooling capabilities, which allow it to adapt to varying cooling loads and maintain consistent indoor temperatures.

The Bryant 575A is built with reliability in mind, featuring durable construction and quality components designed to withstand the rigors of daily use. Its compact design makes it easy to install in various settings, and its low profile ensures it can fit into tight spaces without compromising performance. Additionally, the system is designed for quiet operation, making it an ideal choice for residential areas where noise may be a concern.

Another significant aspect of the Bryant 575A is its compatibility with Bryant's intelligent thermostat technology. The system can seamlessly integrate with smart home setups, allowing homeowners to control their HVAC systems remotely via smartphone apps or home automation systems. This convenience not only enhances user experience but also contributes to energy savings by allowing for more precise control over heating and cooling schedules.

In summary, the Bryant 575A embodies the blend of efficiency, reliability, and advanced technology, making it a top choice for those seeking a high-performance HVAC solution. With features designed to optimize comfort and energy use, the Bryant 575A stands out as a strong contender in the competitive HVAC market.
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