Powering Your Valve
A switch should always be installed in the hot leg of 120 volt circuits. When both legs are hot, such as 240 or 480 volt circuits, a double pole switch is preferable. If a single pole switch is used, then the wiring should have top quality insulation since even minute leakage currents may give rise to sticking problems. On motor hookup with step control starter, full voltage should be supplied to coil immediately.
Coils can be easily removed from valves. The coil can be rotated on top of any valve to position the lead wires as needed.