Carrier 50VL---A installation instructions Troubleshooting, START-UP Checklist

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readily. POE oils can absorb 15 times as much water as other oils designed for HCFC and CFC refrigerants. Take all necessary precautions to avoid exposure of the oil to the atmosphere.

Servicing Systems on Roofs with Synthetic Materials

POE (polyolester) compressor lubricants are known to cause long term damage to some synthetic roofing materials. Exposure, even if immediately cleaned up, may cause embrittlement (leading to cracking) to occur in one year or more. When performing any service that may risk exposure of compressor oil to the roof, take appropriate precautions to protect roofing. Procedures which risk oil leakage include, but are not limited to, compressor replacement, repairing refrigerant leaks, replacing refrigerant components such as filter drier, pressure switch, metering device, coil, accumulator, or reversing valve.

Synthetic Roof Precautionary Procedure

1.Cover extended roof working area with an impermeable polyethylene (plastic) drip cloth or tarp. Cover an approximate 10 x 10 ft (3 x 3 m) area.

2.Cover area in front of the unit service panel with a terry cloth shop towel to absorb lubricant spills, prevent run-offs, and protect drop cloth from tears caused by tools or components.

3.Place terry cloth shop towel inside unit immediately under component(s) to be serviced and prevent lubricant run-offs through the louvered openings in the unit base.

4.Perform required service.

5.Remove and dispose of any oil contaminated material per local codes.

Liquid Line Filter Drier

The filter drier is specifically designed to operate with Puron. Use only factory-authorized components. Filter drier must be replaced whenever the refrigerant system is opened. When removing a filter drier, use a tubing cutter to cut the drier from the system. Do not unsweat a filter drier from the system. Heat from unsweating will release moisture and contaminants from drier into system.

Puron (R-410A) Refrigerant Charging

Refer to unit information plate and charging chart. Some R-410A refrigerant cylinders contain a dip tube to allow liquid refrigerant to flow from cylinder in upright position. For cylinders equipped with a dip tube, charge Puron units with cylinder in upright position and a commercial metering device in manifold hose. Charge refrigerant into suction-line.

TROUBLESHOOTING

Refer to the Troubleshooting Chart (Table 10) for troubleshooting information.

START-UP CHECKLIST

Use the Start-Up Checklist at the back of this manual.

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Contents Safety Considerations Table of ContentsProvide Unit Support Receiving and InstallationIntroduction Check Equipment50VL-A24-36 Unit Dimensions 50VL-A42-60 Unit Dimensions CPRFCURB012A00 SizeCPRFCURB010A00 CPRFCURB011A00Small Cabinet Large Cabinet 50VL-A Unit Suggested RiggingInspection Provide ClearancesField-Fabricate Ductwork Rig and Place UnitInstall Duct Connections Configuring Units for Downflow Vertical DischargeConnect Condensate Drain Install Electrical Connections HIGH-VOLTAGE ConnectionsUnit Component Damage Hazard Transformer Protection Special Procedures for 208-V OperationControl Voltage Connections Standard ConnectionMinimum Airflow for Safe Electric Heater Operation CFM Physical Data-Unit 50VL-ACheck for Refrigerant Leaks Start-Up Cooling Section And Make AdjustmentsPRE-START-UP START-UPUnit Operation Hazard Indoor Airflow and Airflow ADJUST- MentsColor Coding for Indoor Fan Motor Leads Single Speed Cooling with Higher Electric Heat SpeedContinuous FAN Operation Cooling Sequence of OperationDry Coil Air Delivery Downflow Discharge Unit Motor Speed Wire ColorUnit Standard CFM Scfm Size Horizontal and Downflow Filter Pressure Drop Table IN. W.CElectric Heat Pressure Drop Tables IN. W.C Small Cabinet Large Cabinet50VL a Cont. Ladder Wiring Diagram 208/230-1-60 Connection Wiring Diagram 208/230-3-60 Cont. Ladder Wiring Diagram 208/230-3-60 Connection Wiring Diagram 50VL500271 Cooling Charging Chart Personal Injury and Unit Damage Hazard MaintenanceAir Filter Indoor Blower and MotorElectrical Controls and Wiring Outdoor Coil, Indoor Coil, and Condensate Drain PanOutdoor FAN Refrigerant Circuit Pressure SwitchesLoss of Charge/Low-Pressure Switch Air Conditioner Only High-Pressure SwitchSTART-UP Checklist TroubleshootingSymptom Cause Remedy Troubleshooting ChartAIR Conditioner with Puron R-410A Quick Reference Guide III. START-UP Electrical Supply Voltage Compressor Amps TemperaturesRemove and Store in Job Files Preliminary Information Model no

50VL---A specifications

The Carrier 50VL---A is a powerhouse in the field of air conditioning and heating solutions, designed for residential and commercial applications. This unit exemplifies Carrier’s commitment to efficiency, reliability, and advanced technology. One of the standout features of the 50VL---A is its superior energy efficiency, which is reflected in its high Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF) ratings. These ratings ensure reduced energy consumption and lower utility bills, making it an environmentally friendly choice.

The 50VL---A is designed with a robust scroll compressor that not only enhances performance but also minimizes noise levels during operation. This compressor is integral to the system’s ability to maintain a consistent temperature and humidity level within the space. The unit’s sound-dampening features contribute to a quieter environment, which is particularly important in residential settings.

One of the key technologies integrated into the Carrier 50VL---A is the advanced microprocessor control system. This technology allows for precise temperature adjustments and operational diagnostics, making maintenance easier and more efficient. This system ensures that the unit operates at optimal performance, adapting to changing environmental conditions with ease.

Moreover, the 50VL---A is equipped with a multi-speed blower motor that provides enhanced airflow and comfort. This feature allows users to select different cooling or heating levels according to their specific requirements, promoting customized comfort throughout the home or office.

In addition to its performance capabilities, the Carrier 50VL---A is also built with longevity and durability in mind. The cabinet is constructed from high-quality materials that offer resistance to corrosion and wear, ensuring the unit can withstand various weather conditions over time. Furthermore, the unit’s maintenance-friendly design allows for easy access to key components, simplifying servicing and prolonging the life of the system.

Overall, the Carrier 50VL---A stands out as a reliable and advanced solution for climate control. With its energy-efficient operation, quiet performance, and user-friendly features, it represents a significant investment in home comfort and efficiency. Whether for heating during the colder months or cooling in the summer, the 50VL---A delivers exceptional performance, making it a popular choice among users seeking quality HVAC solutions.
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