It is a good idea to get a certified electrician to help with this process. A few things to know is that you’ll see a low glycol pressure on your glycol pressure gauge. This may indicate a backwards pump. Rotation is indicated on the head of the pump, you’ll see an arrow going counter-clockwise. This is the direction you want the pump spinning. If you turn the motor around and look at the backside and remove the cap, you’ll see a shaft located in the center. When the pump is running, you will want to see the shaft spinning clockwise. That will verify proper pump rotation on your system.