Welbilt Frymaster FilterQuick 3FQG30U Installation, Operation And Maintenance Manual page 51

A.1.2 Bulk Oil Wiring
WARNING
™
The FilterQuick fryer will ONLY operate with bulk oil systems that have a three-
pole float switch. If the float switch is the older two-pole switch, call the bulk oil
provider. These float switches are polarity specific which may short to ground
and damage an MIB board.
A–2