Carrier 50VL---A Install Electrical Connections, HIGH-VOLTAGE Connections

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Horizontal Duct Covers

A09076

Basepan

 

Downflow

 

(Vertical)

Basepan

Supply

Downflow

Knockout

(Vertical)

 

 

Return

 

Knockout

 

A09093

Fig. 9 - Supply and Return Duct Opening

Step 8 — Install Electrical Connections

!WARNING

ELECTRICAL SHOCK HAZARD

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

The 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 an electrical wire connected to the unit ground screw in the control compartment, or conduit approved for electrical ground when installed in accordance with NFPA 70 (NEC) (latest edition) (in Canada, Canadian Electrical Code CSA C22.1) and local electrical codes.

!CAUTION

UNIT COMPONENT DAMAGE HAZARD

Failure to follow this caution may result in damage to the unit being installed.

1.Make all electrical connections in accordance with NFPA 70 (NEC) (latest edition) and local electrical codes governing such wiring. In Canada, all electrical connections must be in accordance with CSA standard C22.1 Canadian Electrical Code Part 1 and applicable local codes. Refer to unit wiring diagram.

2.Use only copper conductor for connections between field-supplied electrical disconnect switch and unit. DO NOT USE ALUMINUM WIRE.

3.Be sure that high-voltage power to unit is within operating voltage range indicated on unit rating plate. On 3-phase units, ensure phases are balanced within 2 percent. Consult local power company for correction of improper voltage and/or phase imbalance.

4.Do not damage internal components when drilling through any panel to mount electrical hardware, conduit, etc.

HIGH-VOLTAGE CONNECTIONS

The unit must have a separate electrical service with a field-supplied, waterproof disconnect switch mounted at, or within sight from the unit. Refer to the unit rating plate, NEC and local codes for maximum fuse/circuit breaker size and minimum circuit amps (ampacity) for wire sizing.

The field-supplied disconnect may be mounted on the unit over the high-voltage inlet hole when the standard power and low-voltage entry points are used. See Fig. 2 and 3 for acceptable location.

See unit wiring label (Fig. 12, 13 and 14) and Fig. 10 for reference when making high voltage connections. Proceed as follows to complete the high-voltage connections to the unit.

Single phase units:

1.Run the high-voltage (L1, L2) and ground lead into the control box.

2.Connect ground lead to chassis ground connection.

3.Locate the black and yellow wires connected to the line side of the contactor.

4.Connect field L1 to black wire on connection 11 of the compressor contactor.

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50VL-- A

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Contents Safety Considerations Table of ContentsIntroduction Receiving and InstallationCheck Equipment Provide Unit Support50VL-A24-36 Unit Dimensions 50VL-A42-60 Unit Dimensions CPRFCURB010A00 SizeCPRFCURB011A00 CPRFCURB012A00Small Cabinet Large Cabinet 50VL-A Unit Suggested RiggingField-Fabricate Ductwork Provide ClearancesRig and Place Unit InspectionInstall Duct Connections Configuring Units for Downflow Vertical DischargeConnect Condensate Drain Install Electrical Connections HIGH-VOLTAGE ConnectionsUnit Component Damage Hazard Control Voltage Connections Special Procedures for 208-V OperationStandard Connection Transformer ProtectionMinimum Airflow for Safe Electric Heater Operation CFM Physical Data-Unit 50VL-APRE-START-UP Start-Up Cooling Section And Make AdjustmentsSTART-UP Check for Refrigerant LeaksUnit Operation Hazard Indoor Airflow and Airflow ADJUST- MentsContinuous FAN Operation Single Speed Cooling with Higher Electric Heat SpeedCooling Sequence of Operation Color Coding for Indoor Fan Motor LeadsDry Coil Air Delivery Downflow Discharge Unit Motor Speed Wire ColorElectric Heat Pressure Drop Tables IN. W.C Small Cabinet Horizontal and Downflow Filter Pressure Drop Table IN. W.CLarge Cabinet Unit Standard CFM Scfm Size50VL 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 Air Filter MaintenanceIndoor Blower and Motor Personal Injury and Unit Damage HazardElectrical Controls and Wiring Outdoor Coil, Indoor Coil, and Condensate Drain PanOutdoor FAN Loss of Charge/Low-Pressure Switch Air Conditioner Only Pressure SwitchesHigh-Pressure Switch Refrigerant CircuitSTART-UP Checklist TroubleshootingSymptom Cause Remedy Troubleshooting ChartAIR Conditioner with Puron R-410A Quick Reference Guide Remove and Store in Job Files TemperaturesPreliminary Information Model no III. START-UP Electrical Supply Voltage Compressor Amps

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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