1. Introduction
The Liberty Pumps ELV280 is a robust condensate pump designed for efficient removal of condensate from air conditioning systems, furnaces, dehumidifiers, and other equipment where condensate drainage is required. This manual provides essential information for the safe and effective installation, operation, and maintenance of your ELV280 pump.

Image 1.1: The Liberty Pumps ELV280 Condensate Pump. This image displays the overall design of the pump unit, including its housing and connection points.
2. Safety Information
WARNING: Risk of electric shock. Disconnect all electrical power to the pump and the equipment it serves before attempting any installation, service, or maintenance. Failure to do so can result in serious injury or death.
CAUTION: Read all instructions carefully before installation and operation. Improper installation or use can lead to equipment damage, property damage, or personal injury.
- Ensure the pump is installed by a qualified professional in accordance with local electrical and plumbing codes.
- Do not operate the pump with a damaged power cord or plug.
- Do not use the pump to handle flammable or corrosive liquids.
- Keep hands clear of moving parts during operation.
- Ensure the pump is properly grounded.
3. Setup and Installation
The ELV280 features an easy clamp-mount installation with plug-in ready wiring for simplified setup.
3.1 Mounting the Pump
- Select a stable, level surface near the condensate source.
- Secure the pump using the integrated clamp-mount system. Ensure the pump is level to allow for proper float operation.
3.2 Plumbing Connections
- Connect the condensate drain line from the appliance to the pump's inlet port. Ensure a tight, leak-free connection.
- Connect a discharge line (typically 3/8" or 1/2" tubing) to the pump's outlet port. Route the discharge line to an appropriate drain, ensuring it is free of kinks and has a continuous upward slope to prevent backflow.
- Install a check valve (if not integrated) in the discharge line to prevent water from flowing back into the pump when it shuts off.
3.3 Electrical Connections
- The ELV280 operates on 115V AC power. Ensure the power supply matches the pump's requirements.
- Utilize the quick-connect power cord. Plug the pump into a properly grounded 115V electrical outlet.
- If using the remote alarm feature, connect the alarm contacts to a suitable alarm system or device as per the alarm system's instructions.
4. Operating Instructions
The Liberty Pumps ELV280 is designed for automatic operation.
- Once properly installed and connected to power, the pump will activate automatically when the condensate level in the reservoir rises to a predetermined level.
- The pump will run until the condensate level drops, then shut off.
- The remote alarm contacts will activate if the water level rises above the normal operating range, indicating a potential issue or overflow condition. Address any alarm conditions promptly.
5. Maintenance
Regular maintenance ensures the longevity and efficient operation of your ELV280 pump.
5.1 Recommended Maintenance Schedule
- Monthly: Inspect the pump and reservoir for debris, sludge, or blockages.
- Quarterly: Clean the reservoir and check valve.
- Annually: Inspect all plumbing and electrical connections for wear or damage.
5.2 Cleaning Procedure
- Disconnect Power: Always disconnect the pump from the electrical outlet before cleaning.
- Drain Reservoir: If possible, manually drain the reservoir or allow it to pump out naturally.
- Remove Debris: Carefully remove any accumulated sludge, sediment, or debris from the reservoir. A soft brush or cloth can be used.
- Clean Check Valve: Inspect and clean the check valve to ensure it operates freely and is not obstructed.
- Rinse: Rinse the reservoir with clean water.
- Reconnect: Reconnect all plumbing and electrical connections, then restore power.
6. Troubleshooting
Refer to the table below for common issues and their potential solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not run | No power; Clogged inlet/outlet; Defective float switch | Check power supply; Clear blockages; Inspect/replace float switch |
| Pump runs continuously | Stuck float switch; Clogged discharge line; Defective check valve | Free float switch; Clear discharge line; Inspect/replace check valve |
| Pump cycles frequently | Small amount of condensate; Backflow from discharge line | Ensure proper check valve operation; Verify discharge line slope |
| Water leaks from pump | Loose connections; Cracked housing; Damaged seals | Tighten connections; Inspect housing for damage; Replace seals if necessary |
| Remote alarm activates | High water level; Pump failure; Clogged system | Investigate cause of high water; Refer to other troubleshooting steps |
7. Specifications
Key technical specifications for the Liberty Pumps ELV280 Condensate Pump:
| Specification | Value |
|---|---|
| Brand | Liberty Pumps |
| Model Number | ELV280 |
| Voltage | 120 Volts |
| Horsepower | 0.5 HP |
| Power Source | AC/DC |
| Material | Cast Iron, Polypropylene (PP) |
| Item Weight | 40 Pounds |
| Product Dimensions (L x W x H) | 16.5" x 16.5" x 1" |
| UPC | 671812114850 |
8. Warranty and Support
For specific warranty information regarding your Liberty Pumps ELV280, please refer to the documentation included with your purchase or visit the official Liberty Pumps website. Warranty terms and conditions may vary.
If you require technical assistance, replacement parts, or have questions not covered in this manual, please contact Liberty Pumps customer support:
- Website: www.libertypumps.com
- Customer Service: Refer to the website for current contact numbers and hours of operation.







