I am trying to wire a dayton booster pump. it shows a L1 and L2 connection on the 115v connection. L1 goes to P1 L2 goes to T4. on the 220v connection it shows L1 and L2. L1 goes to wire P1 and L2 goes to T4. P2 does shows it connects to something. is that my other hot wire?

The power cord has a green ground wire; two hot wires, which are black and red; and a white neutral wire. Attach the neutral to the middle connector and the two hot wires to either end of the terminal. If it doesn't have a terminal strip just remember that the 2 hot wires are black & red. The white to neutrar (power return) and the green wire to chassis.
In order to safely ground the machine the green ground wire must be securely connected to the unit frame. There may be a screw on the frame where you can attach the ground The power cord has a green ground wire; two hot wires, which are black and red; and a white neutral wire. Attach the neutral to the middle connector and the two hot wires to either end of the terminal. If it doesn't have a terminal strip just remember that the 2 hot wires are black & red. The white to neutrar (power return) and the green wire to chassis. In order to safely ground the machine the green ground wire must be securely connected to the unit frame. There may be a screw on the frame where you can attach the ground