EasyTouch and a 2-speed motor

[Dssmaster]

I would like to switch out the motor of my single speed Pentair WhisperFlo pump, for a 2-speed motor. The one currently in my system is an A.O. Smith 1hp/s.f. 1.25, and everything is hooked up to a Pentair EasyTouch 4 automation system. I'm having a hard time finding the instructions on the wiring for the 2-speed motor from the EasyTouch control panel. From what I've read so far, is that I would need to get the 2-speed relay from Pentair to connect it to the EasyTouch control panel, so I'll be able to switch from high/low speeds.

What I need to know is, if I'll need to run/add additional wires from the EasyTouch control panel to the 2-speed motor.

 

[JasonLion]

Yes, a two speed motor with the speed switched remotely needs three wires plus ground, while a single speed only needs two plus ground. The three wires are high speed, low speed, and common.