Centripro pressure switch for water pumps 2 HP # AS4 30 PSI cut-in, 50 PSI cut-out; adjustable with maximum pressure setting of 60 PSI cut-in and 80 PSI cut-out; will handle single phase 1-1/2 HP @ 115 Volts and 2 HP @ 230 volts, also 3 HP @ 230 volts three phase. It has 1/4 FNPT (Female pipe thread) bottom connection. Replaces Furnas pressure switch 69ES1.
Standard pressure setting:
30 PSI cut-in , 50 PSI cut-out
Maximum pressure setting:
60 PSI cut-in, 80 PSI cut-out
1/4 FNPT (Female pipe thread)
Main spring adjustment (large spring):
Turn clockwise to increase cut-in and cut-out pressure 2 PSI per turn (maintaining 20 PSI differential) Turn counter-clockwise to decrease.
Differential adjustment (small spring:
Turn clockwise to increase cut-out pressure 3 PSI per turn without affecting cut-in. Turn counter-clockwise to decrease.
1-1/2 HP @ 115 Volts, 2 HP @ 230 volts single phase, 3 HP @ 230 volts three phase.Note:
We recommend that you maintain a 20-PSI differential.