English to French Tech/Engineering Mechanics / Mech Engineering Commande de pompes

Float Switches – Pump Up vs. Pump Down & Normally Open vs. Normally Closed
A Pump Up opens the circuit on the rise .A Pump Down closes the circuit on the rise .Sometimes the terms ‘Normally Open’ and ‘Normally Closed’ are used to describe float switches. Please use the following identities:•Normally Open = Pump Down•Normally Closed = Pump Up

A pump with an LCB (Linear Current Booster or pump controller, used with all PV-direct Conergy surface pumps except the SunCentric) will continue to run when the float switch circuit is open. With an LCB, a closed float switch circuit will shut the pump off. With no controller: Pump will not run when circuit is open. Pump will run when circuit is closed. So, to shut pump off when the tank is full:•Use Pump Up when no LCB is used.•Use Pump Down when using an LCB. To shut pump off when the tank is empty:•Use Pump Up when using an LCB.•Use Pump Down when no LCB is used.