Bryant 280ANV Install Accessories, Start-Up, System Functions And Sequence Of Operation

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Step 10 — Install Accessories

There are no refrigeration circuit or electrical accessories required or available for installation within the unit. External to the unit, the same accessories such as the liquid line solenoid, support feet, snow rack, wind baffle etc., are available on other Bryant units can also be used on this line of product. Refer to the individual Installation Instructions packaged with kits or accessories when installing.

Step 11 — Start-Up

!CAUTION

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this caution may result in minor personal injury, equipment damage or improper operation.

Observe the following:

1.Do not overcharge system with refrigerant.

2.Do not operate unit in a vacuum or at negative pressure.

3.Do not disable low pressure switch

4.Dome temperatures may be hot.

!CAUTION

PERSONAL INJURY HAZARD

Failure to follow this caution may result in personal injury.

Wear safety glasses, protective clothing, and gloves when handling refrigerant.

!CAUTION

ENVIRONMENTAL HAZARD

Failure to follow this caution may result in environmental damage.

Federal regulations require that you do not vent refrigerant to the atmosphere. Recover during system repair or final unit disposal.

Follow these steps to properly start up the system:

1.After system is evacuated, close the disconnects to energize the ID and OD units to assess the user interface (UI), Keep system in off mode. Under the Advanced function menu, assess the REQUIRED CHARGE CALCULATION screen. Enter the lineset length and vapor tube diameter. The user interface (UI) will now display the required charge adjust- ment (see Fig. 9) for the lineset and an adjustment for a large indoor coil if recognized as such by the UI.

2.Add or remove the required charge adjustment for lineset length to liquid service valve.

Note: If lineset is less than 15 feet (-9.4_C), charge re- moval may be necessary.

3.Fully open liquid and vapor service valves.

A11104

Fig. 9 - Required Charge Adjustment Calculated in UI

4.Set User Interface to operate cooling in CHARGING mode. Charging mode operates system compressor speed and fan speeds to proper conditions to check the refrigerant charge.

NOTE: Do not check charge in a mode other than CHARGING.

5.Wait for the specified stabilization time, depending on lineset length. Compare subcooling at liquid line service valve to Liquid Line Subcooling Target as shown CHAR- GING screen (LiqLin SC TGT) (see Fig. 10).

A12054

Fig. 10 - Liquid Line Subcooling Target

Step 12 — System Functions And Sequence Of Operation

The 280ANV models utilize an Evolution Communicating User Interface (UI). With a call for cooling, the outdoor fan and compressor are energized to run at lowest cooling demand. If this does not satisfy cooling demand, the system will ramp up in stages until it satisfies the demand. After coping with the higher demand, the unit returns to lower capacity operation until the demand is satisfied or until an increase in demand.

When all demand is satisfied, the compressor will shut off. As the unit operates at lower capacity, system vapor (suction) pressure will be higher than it is during a standard single-stage system operation or during a higher capacity operation.

When the outdoor ambient is more the 100_F (37.8_C), the outdoor fan will continue to run for one minute after compressor shuts off. This reduces pressure differential for easier starting in the next cycle.

The conventional thermostat inputs is designed to work for emergency operation only. Connections are Y, O and C. The system will only operate at maximum capacity, heating or cooling.

The user interface (UI) displays the operation mode and fault codes as specified in the troubleshooting section. See Table 7 for codes and definitions.

NOTE: Only one code will be displayed on the outdoor unit control board (the most recent, with the highest priority). The latest codes are stored and can be access via the UI.

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Contents Installation Instructions Table of ContentsSafety Considerations Inverter CoverInstallation Installation RecommendationsCheck Equipment and Job Site Unpack UnitInstall on a Solid, Level Mounting Pad Clearance RequirementsOperating Ambient Elevate UnitAccessory Usage Make Piping ConnectionsPersonal Injury and Unit Damage Hazard Unit Damage HazardInstall Liquid-Line Filter Drier Indoor No Installation of Adapter TubeOutdoor Unit Connected to Factory-Approved Indoor Refrigerant Tubing connection OutdoorMake Electrical Connections Compressor Crankcase HeaterInstall Accessories Start-UpSystem Functions And Sequence Of Operation Follow these steps to properly start up the systemCommunication and Status Function Lights DefrostCheck Charge Charge in Charging mode Heating Check Chart ProcedurePump Down Evacuation and Recovery of Refrigerant from within 280ANVPumpdown & Evacuation Troubleshooting Major ComponentsPressure Switch Protection Control Fault230V Line Power Disconnect Detection Temperature ThermistorsVariable Speed Compressor Power Input Terminals Outdoor Coil ThermistorSuction Thermistor OST Variable Speed Compressor Sensor Output TerminalsStatus Codes ExampleVariable Speed Control Board With optional Utility Relay Troubleshooting HoursPuronr R-410A Refrigerant Quick Reference Guide Care and MaintenanceFinal Checks
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280ANV specifications

The Bryant 280ANV is a highly efficient air conditioning unit designed for residential use, providing homeowners with reliable cooling performance while maintaining energy efficiency. One of the standout features of the Bryant 280ANV is its two-stage compressor, which allows for variable speed operation. This means that the unit can adjust its cooling output to match the current demand for indoor comfort, leading to more consistent temperatures and increased energy savings.

The Bryant 280ANV also boasts an impressive SEER (Seasonal Energy Efficiency Ratio) rating, which indicates its energy efficiency. Typically, this model achieves a SEER rating of up to 20, making it a strong contender in the market for those looking to reduce their energy bills without sacrificing comfort. This level of efficiency not only results in lower monthly costs but also contributes to a reduced environmental footprint.

Another key technology featured in the Bryant 280ANV is its advanced, variable-speed blower motor. This motor helps to operate quietly while ensuring optimal airflow throughout the home. The quiet operation of the 280ANV means that it can deliver cooling without disturbing your daily life, making it an excellent choice for bedrooms or other quiet spaces.

The unit is also designed with durability in mind. Its cabinet is constructed from high-quality, weather-resistant materials that protect against harsh outdoor conditions. This ensures longevity and reliable performance over the years. Furthermore, the Bryant 280ANV includes a protected scroll compressor that adds an extra layer of reliability and enhances the unit's overall efficiency.

Installation of the Bryant 280ANV can be completed by a qualified HVAC professional, who can ensure that the system is set up to operate at peak performance. Additional features, such as the built-in Wi-Fi capability, allow homeowners to connect the unit to smart home systems for enhanced control and convenience.

In conclusion, the Bryant 280ANV combines energy efficiency with advanced technology to provide effective cooling solutions for residential spaces. With its two-stage compressor, high SEER rating, quiet operation, and durable construction, it meets the needs of modern homeowners who value comfort, efficiency, and reliability. Overall, the Bryant 280ANV stands out as a quality choice for those seeking a dependable air conditioning system.
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