How much power does a variable speed pool pump use?

In the field, a variable speed pump set at a flow rate of 22 gpm will draw 116 watts and turn the pool over in 19 hours but only consume 2.2 kWh of electricity.

Can a single speed pump be replaced with a variable speed motor?

Those skeptics will allege that replacing the current single-speed motor with a lower HP single speed motor can produce the same savings. They are not taking into consideration the design of the variable speed motor and the Pump Affinity Law. Most variable-speed motors, like the Century V-Green, are considered permanent magnet motors.

What happens when you change the motor on a pool pump?

If you use the 1 HP uprated on a pool pump that has a 1.5 HP uprated motor, you are going to kill the new motor as well. The 1.5 pump is going to have a larger impeller, that the smaller motor is going to have trouble spinning, causing it to overwork and eventually die.

How much horsepower does a variable speed pool pump need?

If you have a 0.75 HP motor, with a 1.65 SF, the Total Horsepower is equal to 1.24. This is greater than 1.0 THP, so under the new regulations, this pump would need to be a variable speed model. In another example, with a 0.75 HP motor with a 1.10 SF, the THP is only 0.825 HP.

When do you have to replace single speed pool pump?

You do not have to replace the single speed pump currently installed in your pool if it’s still in good working condition. After the July 21, 2021, deadline, it will get progressively harder to find large single speed pumps that you would typically find on an inground swimming pool.

Can a single speed pool pump be transferred to a variable speed pump?

This excludes the pump seals which should always be replaced when a new motor is installed. The wiring from a single speed motor is also transferable. The same three lines that were used for the single-speed motor can be used to supply electricity to the VS motor.

Can a motor with 10HP drive a centrifugal pump?

Can a motor with 10HP, rotor speed of 1765 rpm having synchronous speed of 1800 rpm drive a centrifugal pump with 1770 rpm and rated power of 7.3HP? Motor rotor speed is less than pump speed but can the motor accelerate the pump to its rated speed?

How much does it cost to replace a pool pump motor?

On average you are looking at $150 – $200 to replace your pool motor on your own versus $400 – $600 for a pool professional to do the job. If you are not handy and don’t feel comfortable replacing your pool pump motor then you can still purchase the motor online and then call a local pool company to install the motor.

When does the motor run higher than the pump speed?

Independent events are seldomly independent. The 1765 RPM is the motor RPM at rated full load of 10HP. WHen the motor is not required to deliver full load, the RPM will be higher. Since your pump rated power is 7.3 HP, the motor will run at higher than 1765 RPM.