Wiring of pressure switch and adjusting psi/cut off rate.
 

To follow up on my previous post, I will give a overview of how the pressure switch is wired

There are 4 terminals and are numbered from left to right from 1-4

I have wired my pressure switch where by the left of the pressure switch allow the entrance of the wires that send electricity to the motor. The right had side represents electricity coming into the pressure switch, on both ends of cable, it is important to identify the ground wire.

The ground wire is placed at the bottom of the pressure switch on both ends.

Terminals 1 and 3 represent wires from one conduit (motor)

Terminals 2 and 4 represent wires from another  (power)

NEVER PLACE A SINGLE CONDUIT ON 3 AND 4 OR 1 AND 2

This will cause the unit to have a grounding issue and result in the main breaker to trip.

The power cable and be placed on the remaining available points on the pressure switch. 

Adjusting the pressure switch

On the pressure switch itself, there should be 2 screws

The larger one of the two deals with the psi range in which the pump should operate (PSI means pounds per square inch). Turning this screw in a clock wise direction allows the ware pump to change cut on and off value. The cut on and off value may vary so that the pump when it recognizes a drop in pressure to 20 PSI it may turn the pump on to its set cut of rate of 40 PSI. A turn in the right would change this from 20PSI/40PSI to 30PSI/50PSI.

The smaller deals with deals with the cur off rate, or, the pressure within the closed system that allows the water pressure to cut off. Please take note that turning this screw all the way down would cause the pump to run continuously and not cut off.