Column-by-Column: an AIM Manual Series

The AIM Manual holds a wealth of knowledge for contractors and installers, but there are two pages that stand out, pages 13 and 14. These pages are packed with information imperative to single-phase motor installation and operation. This Franklin AID introduces a series where we will review pages 13 and 14 column-by-column, maximizing your knowledge and understanding of single-phase motor specifications.

If you are dealing with 50 Hz motors, you will need a 50 Hz AIM Manual. Also, for those dealing with a 3-phase motor, please reference the table on page 22 of the AIM Manual. This series will focus on single-phase motors and will either be 115 or 230 volts.

Beginning on page 13, column one has the heading “Type” and lists the five types of single-phase submersible motors, manufactured by Franklin Electric, starting with 4-inch, 2-wire. The “4-inch” is slightly redundant here, as 2-wire motors are only available in 4-inch. These motors are manufactured in ratings from ½ to 1.5 hp, with the ½ hp being unique in that it comes in 115 and 230 volts. It is important to keep in mind that 2-wire motors have no control box or any type of capacitor associated with them. Continue reading

Most Missed Question

by: Mark Reeder

Franklin Electric’s Certified Contractor Program recognizes those water systems contractors that have made a commitment to understanding the proper application and installation of Franklin products. Attendance at an all-day Franklin Tech session, either at the factory, or “on the road” automatically certifies a contractor.

However, water systems contractors with 5 or more years experience with Franklin products can “test-out” of BASIC Certification with an exam.

Many of you have taken the Franklin Electric Certified Contractor exam on our Key Dealer website at www.keydealer.franklin-electric.com. Looking back at the results so far, there is one question that is most frequently missed on the test:

True or False? Amp draw is a reliable indication of electrical power consumption.

The correct answer is False, but it’s an easy one to get wrong. Here’s why: Continue reading

Hotline FAQ: SubMonitor Protection

What information do I have to input when using Franklin’s SubMonitor protection system?

The SubMonitor is designed to work on motors that operate between 5 and 350 amps with worldwide standard voltages. The only information the SubMonitor needs is:

  1. Power supply of 50 or 60 Hz?
  2. Incoming line-to-line voltage?
  3. Maximum amp rating of the motor?

Everything else is factory set in the SubMonitor to provide optimum motor protection.