I'm replacing an old ('86) Red Jacket 3/4hp Submersible pump. It's a 2-wire 230v pump, but it was installed with a control box and worked for a long time. The replacement, to avoid a full rewire, is a 2-wire 1hp RL12G10-2W2V. I know that these systems have internal starting caps, so I have 2 questions.
1) Is there any benefit to having a control box with a 2 wire system?
2) [if so] Can I reuse the same control box that is marked for 3/4hp Franklin pump?
Answer
Thank you for your interest in Water Pumps Direct. The ONLY difference between a 2-wire and 3-wire pump is that the 3-wire pump requires the control box, which houses the pump relay, overload and capacitor. The 2-wire pumps include all starting components inside the pump. Thus, if you are installing a 2-wire pump, there is no need for the control box and you should NOT include it in any portion of your installation.
If one was to use a control box that was already installed, you only need to insure that the horsepower (HP) rating of the pump and control box match.
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