The house we purchased has a 220/120 32 jet spa. The 220 drives a circulation pump, heater and runs the 2 hp 1-speed jet pump. The jet pump is poor quality and undersized for that amount of jets and the jet force Is really weak when all jets are opened. So I wanted to update the pump to a better flowing, higher HP.
I Ordered a high quality 48 frame 2.5hp 2-speed pump with dimensions that would fit. As I removed the old pump I saw that it was a 3-wire connection. Two hot and ground. There’s no neutral.
Not knowing this before, the pump I ordered has connections for 2 Hot, neutral and a ground. GCFI to the spa controller input is red hot, black hot, white neutral and ground. There is no neutral out from the spa controller.
So my question are 1. Can I install the new pump and only connect two hot and ground 2. Do I tap into the neutral coming from GCFI 3. Do I need to return this pump and find a 3-wire pump?