EverSale MeanWell LPV-20-24 Power Supply User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation of your EverSale MeanWell LPV-20-24 Power Supply. This unit is a 20W, 24V constant voltage power supply designed for various applications, including LED lighting and moving signs. It features a universal AC input and is built with an IP67 rating for protection against dust and water ingress.

Key Features:

• Constant voltage design
• Universal AC input / Full range
• Withstands 300VAC surge input for 5 seconds
• Protections: Short circuit, Overload, Over voltage
• Cooling by free air convection
• Small and compact size
• Fully encapsulated with IP67 level
• Fully isolated plastic case (Class II power unit, no FG)
• Passes LPS (Limited Power Source)
• 100% full load burn-in test

2. Safety Instructions

Read all instructions carefully before installation and use. Failure to follow these instructions may result in electric shock, fire, or other hazards.

• Disconnect Power: Always disconnect power at the circuit breaker before installing or servicing the unit.
• Qualified Personnel: Installation and wiring should be performed by a qualified electrician in accordance with all local and national electrical codes.
• Ventilation: Ensure adequate air circulation around the unit for proper cooling, even though it uses free air convection. Do not cover the unit.
• Environment: Do not install in areas with excessive heat, humidity, or corrosive substances beyond its IP67 rating.
• Load Matching: Ensure the total load connected to the power supply does not exceed its rated output wattage (20W).
• Polarity: Observe correct polarity for DC output connections (Red for V+, Black for V-). Incorrect polarity can damage connected devices.
• Grounding: This is a Class II power unit and does not require a functional ground (FG) connection.

3. Setup and Installation

The LPV-20-24 power supply is designed for easy integration into various systems. Follow these steps for proper installation.

3.1 Wiring Connections

The power supply features clearly labeled input and output wires. Ensure all connections are secure and insulated.

Image 1: Top view of the LPV-20-24 power supply, illustrating input (AC) and output (DC) wiring labels. The input side shows ACN (Blue) and ACL (Brown) for AC power, while the output side shows V+ (Red) and V- (Black) for DC power.

• AC Input (Primary Side):
  • Connect the Brown wire to your AC Live (L) input.
  • Connect the Blue wire to your AC Neutral (N) input.
• DC Output (Secondary Side):
  • Connect the Red wire to the positive (+) terminal of your LED fixture or device.
  • Connect the Black wire to the negative (-) terminal of your LED fixture or device.

Image 2: The LPV-20-24 power supply with its input (blue and brown) and output (red and black) wires extended, ready for connection. This view highlights the physical appearance of the wiring.

3.2 Mounting

The unit is compact and can be mounted in various orientations. Ensure that the mounting location allows for adequate air circulation for cooling, even though it is passively cooled. Avoid enclosing it in a sealed compartment that could trap heat.

4. Operating Instructions

Once properly installed and wired, the LPV-20-24 power supply operates automatically. It provides a constant 24V DC output when connected to a compatible AC input source (100-240VAC).

• Power On: Apply AC power to the input wires. The unit will immediately begin supplying 24V DC to the connected load.
• Constant Voltage: This power supply maintains a stable 24V output regardless of minor fluctuations in the input voltage or changes in the load (within its 20W capacity).
• Protection Features: The unit is equipped with built-in protections against short circuits, overloads, and over-voltage conditions. In case of a fault, the unit may temporarily shut down to protect itself and the connected load. It will typically recover automatically once the fault condition is removed.

5. Maintenance

The EverSale MeanWell LPV-20-24 power supply is designed for low maintenance due to its fully encapsulated, IP67-rated plastic case and fanless design.

• Cleaning: Periodically inspect the unit for any accumulation of dust or debris. If necessary, gently wipe the exterior with a dry, soft cloth. Do not use liquid cleaners or solvents.
• Inspection: Regularly check the input and output wiring for any signs of damage, fraying, or loose connections. Ensure all connections remain secure.
• Environmental Conditions: Verify that the operating environment remains within the specified temperature and humidity ranges.
• No User-Serviceable Parts: The unit contains no user-serviceable parts. Do not attempt to open or repair the power supply. Doing so will void the warranty and may pose a safety risk.

6. Troubleshooting

If you encounter issues with your LPV-20-24 power supply, refer to the following troubleshooting steps:

• No Output Voltage:
  • Check AC Input: Ensure the AC power source is active and correctly connected to the brown (L) and blue (N) input wires.
  • Check Connections: Verify that all input and output wires are securely connected and free from damage.
  • Overload/Short Circuit: Disconnect the load from the power supply. If the output voltage returns, the issue is with the connected load (overload or short circuit). Reduce the load or fix the short circuit.
  • Internal Fault: If the above steps do not resolve the issue, the power supply may have an internal fault. Discontinue use and contact support.
• Output Voltage Fluctuates or is Incorrect:
  • Check Load: Ensure the connected load does not exceed 20W. Overloading can cause voltage drop or instability.
  • Input Voltage Stability: While the unit has a wide input range, extreme fluctuations in AC input can affect performance.
• Unit is Hot to the Touch:
  • Ventilation: Ensure the unit has adequate free air circulation. Do not operate in an enclosed space without ventilation.
  • Ambient Temperature: Verify the ambient temperature is within the specified operating range.
  • Overload: Confirm the connected load is not exceeding 20W.

7. Specifications

8. Warranty Information

The EverSale MeanWell LPV-20-24 Power Supply comes with a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, misuse, unauthorized modifications, or external causes such as accidents or natural disasters.

Please retain your proof of purchase for warranty claims.

9. Support

For technical assistance, warranty claims, or further inquiries regarding your EverSale MeanWell LPV-20-24 Power Supply, please contact your retailer or the manufacturer's customer support. When contacting support, please have your product model number (LPV-20-24) and proof of purchase readily available.