Simple Bathtub Simple Bathtub Guangzhou Aijingsi Sanitary Products Co.,Ltd , https://www.infinityedgehottub.com
**Preparation Before Installation**
Before starting the installation process, it's crucial to ensure that the electric pump is in good condition. First, inspect the pump for any signs of deformation or damage that may have occurred during transportation, storage, or installation. Check if all fasteners are secure and not missing. Next, examine the cable for any damage, such as cracks or breaks. If any issues are found, replace the cable immediately to prevent electrical leakage or failure.
Verify that the power supply is safe and reliable, and make sure the voltage matches the rated value listed on the nameplate. Use a megohmmeter to check the cold insulation resistance of the motor’s stator winding. It should be at least 50 megohms. Also, confirm that the oil level in the oil chamber is correct. When the unit is placed vertically, the oil should reach the fill port.
For submersible pumps with a cooling water hood, ensure that clean cold water is used and that the drainage system is clear. The cooling water must flow from the bottom to the top to maintain proper cooling.
**Post-Installation Monitoring**
Once the pump is running smoothly, continuously monitor the power supply voltage, working current, pump flow, and vibration levels. If any of the following occur, stop the pump immediately and perform an inspection:
- The operating current exceeds the rated current.
- At rated head, the flow rate drops by more than 20% or the water is discharged intermittently.
- The power supply voltage is too high or too low.
- The pump experiences excessive vibration or unusual noise.
**Installation Guidelines**
Electrical wiring must be done by a qualified electrician according to the circuit diagram. Continuously test the insulation resistance during installation. After completion, the motor’s insulation resistance should not be less than 5 megohms. Lift the pump slightly and run it briefly to check the rotation direction. View the pump from the motor side; it should rotate clockwise. If the rotation is incorrect, swap any two of the three-phase power lines.
Never use the pump’s cable as a lifting rope, as this can cause serious safety hazards. Ensure the pump is installed vertically in water and never placed horizontally or trapped in sludge. Always turn off the power before moving the pump.
**Storage Tips**
After extended use, run the pump in clean water for a few minutes to prevent sediment buildup and keep it clean. If the pump will not be used for a long time, remove it from the water to reduce moisture exposure in the motor’s stator winding, which helps extend its lifespan.
Under normal conditions, after one year of operation, perform maintenance on the pump. Replace worn parts, check fastenings, and replenish or replace bearing grease and insulating oil in the oil chamber to ensure optimal performance.
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