Some pumps come fitted with a pneumatic switch, the reason the pump may have this switch is to allow remote operation from an Air Button.
If your system does not require the use of an air button and is controlled via a electronic control box which operates the pump by switching its supply voltage on or off then it important to know that the Pnematic switch will need to be turned and left on for the pump to opertae corretcly
If your pump does not run in the first instant please check to seeif the pnumatic switch is turned on.
If the switch is off it can be tunred on by blowing into the pneumatic switch (normally mounted next to the supply cable)
