Installing an Actisafe RO SMPS for RO Application (Reverse Osmosis) is a straightforward process, but correct installation is crucial for safety and proper operation of the RO water purifier.
Here are step-by-step instructions to install an RO SMPS for domestic use:
Precautions Before You Begin
- Disconnect the RO unit from power before installation.
- Use insulated tools and handle with dry hands.
- Ensure the new SMPS matches the voltage (usually 24V DC) and current rating (e.g., 1.5A, 2A, 2.5A, 3.5A etc) required by the RO unit.
Tools & Materials Needed
- New RO SMPS unit
- Screwdriver
- Electrical tape or heat-shrink sleeves
- Multimeter (optional for verification)
SMPS Installation Steps
1. Turn Off and Unplug the RO System
- Switch off the main power supply.
- Unplug the RO adapter from the wall socket.
2. Remove the Old SMPS (if replacing)
- Unscrew or unclip the old SMPS from its mount.
- Disconnect the input (AC) and output (DC) wires carefully.
3. Identify Wire Connections
Most RO SMPS units have:
- AC input side: Typically marked as L (Live), N (Neutral) and sometimes Earth (E)
- DC output side: Marked as + (Positive) and – (Negative)
Some SMPS models use DC jack connectors instead of open wires. Match the pin type or replace the connector if needed.
4. Mount the New SMPS
- Fix the new SMPS in the same place using screws or adhesive mounts.
- Ensure it's in a dry, ventilated area, away from water flow.
5. Connect AC Input Wires
- Connect the live (brown/red) and neutral (blue/black) wires from the power plug to the input side of the SMPS.
- Connect ground/earth wire (green/yellow) if supported.
Important: Use terminal connectors or wire nuts. Never leave exposed wires.
6. Connect DC Output Wires
- Connect the + (red) wire from the SMPS to the + terminal of the RO controller or pump.
- Connect the – (black) wire to the – terminal.
Polarity matters! Reversing the wires can damage the RO pump or controller.
7. Secure All Connections
- Use electrical tape or heat shrink tubing to insulate all connections.
8. Power On and Test
- Plug the SMPS into the wall socket.
- Switch on the power.
- Check if the RO system powers up (pump runs, LEDs light up, etc.).
9. Verify Output Voltage (Optional but Recommended)
- Use a multimeter to measure output voltage: should read close to 24V DC.
Troubleshooting Tips
- No power at RO? Check wall socket, SMPS fuse, or connector issues.
- Pump not working?
Check for reversed polarity or faulty pump.li>
- Overheating? Ensure proper ventilation and correct voltage rating.