Well Accessories
For Professional Well Pump Installations
Pressure Switches
Need a Square D pressure switch wiring diagram? Square D Pressure Switch Wiring Diagram
Need the Square D pressure switch adjustment instructions? Square D Pressure Switch Adjustment Procedures
NOTE; Disconnect power to the switch from the fuse box or power supply before attempting any adjustment!
Before an adjustment is attempted, measure the exposed thread distance from top of the nut to the top of the stud you are adjusting in fractions of an inch for a reference in case you need to start over. A maximum of 3 turns per nut either up or down should be made each time. Pressure switch adjustment change can only be read after the pump has reached its first adjusted shutoff. The pumps next cut on pressure and cutoff pressure is your new settings.
NOTE; Disconnect power to the switch from the fuse box or power supply before attempting any adjustment!
Before an adjustment is attempted, measure the exposed thread distance from top of the nut to the top of the stud you are adjusting in fractions of an inch for a reference in case you need to start over. A maximum of 3 turns per nut either up or down should be made each time. Pressure switch adjustment change can only be read after the pump has reached its first adjusted shutoff. The pumps next cut on pressure and cutoff pressure is your new settings.
A low pressure model will disconnect and save
the pump if the pump loses its prime or a major leak occurs causing
the switch to sense low system pressure. The switch must be manually
engaged (lever on side of switch) past its low pressure setting for
its initial set up. A low pressure cut out switch functions the same
as a standard pressure switch unless the system drops below
approximately 20PSI.
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30/50 PSI Model |
40/60 PSI Model |
40/60 PSI Low Pressure Cut Out Model (Similar to picture but with manual reset lever) |
