ARNU05GSJR4 - Water pump LG - Free user manual and instructions
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| Product type | Water pump |
| Brand | LG |
| Model | ARNU05GSJR4 |
| Application | Condensate drainage and water circulation |
| Power supply | 220-240 V, 50/60 Hz |
| Power consumption | 20 W |
| Max flow rate | 250 L/h |
| Max head height | 8 m |
| Noise level | 30 dB(A) |
| Dimensions (W x H x D) | 150 x 120 x 100 mm |
| Net weight | 1.2 kg |
| Motor type | Synchronous, low vibration |
| Protection class | IPX4 |
| Operating mode | Automatic via float switch |
| Maintenance | Clean inlet filter monthly |
| Cleaning | Wipe with damp cloth; no solvents |
| Safety features | Overheating protection, dry run prevention |
| Spare parts availability | Check valve and impeller replaceable |
| Repairability | Modular design for easy disassembly |
| Included accessories | Hose adapter, check valve, mounting bracket |
Frequently Asked Questions - ARNU05GSJR4 LG
How do I install the LG ARNU05GSJR4 water pump?
Mount the pump below the air conditioner drain outlet. Connect the inlet hose to the drain pan and route the discharge hose to a suitable drain. Ensure the pump is level and secured with the bracket.
What type of fluid can this pump handle?
It is designed for clean condensate water from air conditioners. Do not pump oily, corrosive, or abrasive liquids.
How often should I clean the pump filter?
Clean the inlet filter once a month to prevent clogs and maintain performance. Rinse with water and dry before reinserting.
Why is the pump not starting?
Check the power connection and ensure the float switch moves freely. If the water level is too low, the pump may not activate due to the dry run protection.
Can the pump run continuously?
The pump is designed for intermittent duty based on water level. It will automatically cycle on and off. Do not operate it dry for extended periods.
What is the maximum pumping height?
The maximum vertical lift is 8 meters. For longer horizontal runs, use larger diameter tubing to reduce friction loss.
How do I replace the check valve?
Disconnect the power, remove the discharge hose, and unscrew the valve housing. Install a new check valve in the correct flow direction and reassemble.
Is the pump safe to use outdoors?
With an IPX4 rating, it is protected from splashing water. However, avoid prolonged exposure to rain or direct sunlight; install it in a sheltered area.
What maintenance is required for winter storage?
Drain all water from the pump and hoses, clean the filter, and store in a dry place above freezing. Do not allow residual water to freeze inside.
Can I connect multiple drain lines to this pump?
Yes, as long as the total flow does not exceed 250 L/h. Use a Y-connector and ensure both inlets are equipped with filters.
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USER MANUAL ARNU05GSJR4 LG
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Product information
Brand : LG
Model : ARNU05GSJR4
Category : Water pump