In our last post we discussed Pumptec and how it protects single-phase submersible systems from damage. The protection doesn’t stop there, however. Franklin offers two other members of the Pumptec family, specifically designed for Franklin single-phase motors.
QD Pumptec is very much like Pumptec in functionality and how it works, but in a smaller, unique package that quickly installs in a QD Control Box. Using power factor to monitor Franklin 230V submersible motors from ½ to 1 horsepower, QD Pumptec protects against the same adverse conditions as the original: overload, underload, high and low voltage, and rapid cycling. This specific product is often thought of as mini Pumptec because it is designed exclusively to fit inside Franklin QD control boxes.
Also offered in the Pumptec family is Pumptec-Plus. Sometimes called the “big brother,” Pumptec-Plus protects against those same five conditions, but it works with any 230 V single-phase motor ranging from ½ to 5 horsepower. Unlike its Pumptec companions, however, Pumptec-Plus monitors wattage rather than power factor. When watts run 25% higher or lower than operating load, Pumptec-Plus will remove power from the system. We can get a good idea of what our operating watts should be by turning to page 13 of our AIM Manual. Let’s say we are working with a ½ hp, 4-inch, three-wire motor. That motor should operate between a full load of 670 watts and a maximum load of 960 watts.
Since actual running wattage varies by motor, each Pumptec-Plus needs to be calibrated at installation. This calibration allows the Pumptec-Plus to tailor its performance to each specific system so that it can be used with any ½ to 5 hp, single-phase, 230 V motor—even those not manufactured by Franklin.
The system lights on the face of Pumptec-Plus are also an important feature; their color and state (steady vs. blinking) tell you exactly what’s going on with the system. Some installers actually keep a Pumptec-Plus with them as a diagnostic tool. If a problem turns out to be intermittent, they can install the Pumptec Plus and have the homeowner make note of what the lights are doing when the problem occurs.
No matter what type of system you are installing, it’s important to protect your investment. Taking the time to look into protection options can save time and money for you, as well as your customer, in the long run. For more information about how to protect your investment in the field or for troubleshooting help, contact our Technical Service Hotline at 800.348.2420 or firstname.lastname@example.org.