ES-A-ACV-LF984GD 2115
Commissioning the Pump Control Valve
STEP 1
Pre-set pilots as noted:
Rate of Flow
– Adjust OUT, counterclockwise, to start valve at a lower flow rate.
Opening and Closing Speed
– Turn the adjustment screws on the Closing Speed and Opening Speed Controls, if the main valve is so
equipped, OUT, counterclockwise, 1½ to 2½ turns from full closed position.
3-Way Solenoid
– Confirm that the manual operator is turn counter clockwise to a full OUT position (See Figure 1).
STEP 2
Loosen a tube fitting or cover plug at the main valve to allow air to
vent during start-up.
STEP 3
Energize the solenoid to check actuation and to confirm connec-
tion to power source.
STEP 4
De-energize the solenoid prior to initial pump start.
STEP 5
Energize the solenoid at pump start to open the main valve,
checking that the main valve opens. Air is vented through the
loosened fitting. Tighten the fitting when liquid begins to vent.
Clockwise for MANUAL
Operation
Figure 1
3-Way Solenoid
STEP 6
Slowly open downstream isolation valve to establish flow through
the system.
STEP 7
With a demand for flow on the system, the valve can now be
adjusted for the proper flow rate. This requires a meter to read the
flow that the valve is providing.
STEP 8
While reading the meter register, adjust the Rate of Flow Control:
Turn the adjustment screw IN, clockwise, to increase the flow rate
regulated (See Figure 2A).
Turn the adjustment screw OUT, counterclockwise, to reduce or
lower the flow rate regulated (See Figure 2B).
Setting the Rate-of-Flow Control
19
© 2021 Watts
Installation, Operation and Maintenance - Series LF984GD
Counterclockwise to REDUCE
Flow Rate Regulated
Clockwise to INCREASE
Flow Rate Regulated
2A
2B
Figure 2
CP14-1 Rate-of-Flow Control Pilot
