What is a full rated motor?

Once you have understood the system, you will realize that a pump that has a higher horsepower listing and a lower service factor listing is described as an up-rated motor. The original motor is called a full-rated motor. The pumps are basically the same; they simply have different horsepower and service numbers.

What is an up rated motor?

According to NEMA, in order for an HP motor to be considered full-rate, its service factor must be equal to or higher than the listed full rate service factor. The motor is considered to be up-rate if it has a service factor that is lower than the listed full-rate service factor.

Can I replace my 1hp pool pump with a 1.5 HP?

So to answer the question, yes, you can replace your 1hp pool pump with a 1.5hp pool pump, but only if your situation calls for it. … This will provide the flow that is needed to circulate your pool water properly and save you from high electricity bills at the same time.

What is THP vs HP?

Total Horsepower is the product of multiplying Horsepower (HP) and Service Factor (SF). Under the new regulations, pumps with greater than 1.0 THP must be a variable speed pump. … In another example, with a 0.75 HP motor with a 1.10 SF, the THP is only 0.825 HP.

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What is WEF and THP?

Pump testing must comply with specific test procedures and certain information such as WEF (weighted energy factor), THP (total horsepower) and HHP (hydraulic horsepower) must be reported to the DOE. Pumps, packaging and promotional materials must be labeled with WEF to describe their energy efficiency.

What is SF HP?

Motor service factor (SF) is the percentage multiplier that a motor can handle for short periods of time when operating within its normal voltage and frequency tolerance. In other words, it is a fudge factor that give extra horsepower when it’s occasionally needed. A SF is an operational margin.

What does THP mean on a motor?

THP – a petrol engine that is all about torque (THP – Turbo Haute Pression – English translation: High Pressure Turbo)

Do I need a stronger pool pump?

You’ll want your filter’s GPM to be higher than your pumps to alleviate any additional strain on the pump motor. While some may think it’s just easier to go with the highest GPM and HP and not worry about anything further, note that your pool’s pipes can only take so much movement and pressure based on their size.

Can a pool pump be too powerful?

There is a very persistent myth in the pool world that the higher the horsepower, the better. As a result, it is probably safe to say that the majority of pools have oversized pumps. … Too large of a pump can cause poor filter performance and even damage it, if the filter is not also oversized accordingly.

Can a pool pump be to big?

You might think bigger is better in terms of pump size, but a pump that is too big can cause serious problems. In the example above, the pool’s average depth is 8 feet.

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What is Sfhp pump?

C) Total Horsepower: The product of the Rated Horsepower and the Service Factor of a motor used on a Pool Pump (also known as Service Factor horsepower, SFHP) based on the maximum continuous duty motor power output rating allowable for nameplate ambient rating and motor insulation class.

What is a full rated pump?

Once you have understood the system, you will realize that a pump that has a higher horsepower listing and a lower service factor listing is described as an up-rated motor. The original motor is called a full-rated motor. The pumps are basically the same; they simply have different horsepower and service numbers.

Is a variable speed pool pump worth it?

With a variable speed pump a pool owner can circulate their water at lower flow rates for a more prolonged period of the day without added energy consumption. This study by the National Renewable Energy Laboratory confirms that variable speed pumps are significantly more energy efficient than single speed pumps.

How is WEF calculated?

Efficiency = Output/Input = Bang/Buck

The WEF for a single-speed pump is the same as Energy Factor, since there is only one speed at which to measure. For two-speed and variable-speed pumps, WEF is weighted at 80% of the low speed Energy Factor and 20% of high speed.

What is weighted energy factor?

What is Weighted Energy Factor (WEF)? WEF ratings are very similar to how we measure the efficiency of a car in miles per gallon (MPG). A WEF rating will allow you to see and compare the energy-efficiency of different pool pumps. The higher the WEF rating, the more efficient the pump.

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Motorization