ES-A-ACV-LF985GD-20 2115
Commissioning Deep Well Pump Control
STEP 1
NOTE: System needs to be filled, pressurized, and ready for flow.
Pre-set pilots as noted:
Opening and Closing Speed
– Prior to pump start, actuate manual operator on solenoid to enable diaphragm assembly to stroke
open and closed. Observing the limit switch stem indicator, monitor rate of opening and closing speed. Adjust accordingly per applica-
tion requirements.
Pressure Relief Pilot –
Screw pilot adjusting screw clockwise completely.
Note:
Cycle diaphragm multiple times to confirm rate of movement and remove excess air trapped within the cover chambers (See
Figure 1 Below).
To increase the rate of opening/closing, turn the adjustment
screws on the speed controls OUT, counterclockwise (See
Figure 2B below). In decrease the rate of opening/closing, turn
the adjustment screws on the speed controls IN, clockwise (See
Figure 2A below).
STEP 2
Prior to pump start, energize the solenoid to confirm connection
to power source.
STEP 3
De-energize the solenoid prior to initial pump start.
STEP 4
Energize the solenoid at pump start to close the main valve,
checking that the main valve closes.
STEP 5
Closing Speed Flow Adjustment (located on the lower chamber):
While free flow goes into the upper chamber, the closing speed
flow control restricts flow out of the lower chamber of the main
valve.
If valve closing is too slow, turn the adjustment screw OUT, coun-
terclockwise, increasing the rate of closing.
Figure 2
Flow Control
Counterclockwise to INCREASE
the rate of closing
Clockwise to DECREASE
rate of closing
2A
2B
Manual
Operation
Normal
Operation
16
Figure 1
4-Way Solenoid
© 2021 Watts
