SETTING THE SURGE CONTROL
Note: Surge Control is set at a higher PSI than the
Pressure Reducing Control.
STEP 4
Open downstream isolation valve partially to establish flow
through the valve, observing downstream pressure change. In-
crease of pressure should stop below the desired surge pressure
setting.
STEP 5
Gradually open downstream isolation valve until full open.
SETTING THE PRESSURE REDUCING CONTROL
STEP 1
Adjust the Pressure Reducing Control to the desired pressure set
point by turning the adjustment screw OUT, counterclockwise
until downstream pressure decreases to the desired setpoint (See
Figure 3).
STEP 6
Adjust the Surge Control by turning the adjustment screw IN,
clockwise, to increase, or OUT, counterclockwise, to decrease,
the downstream pressure surge set-point (See Figure 2).
Counterclockwise to DECREASE
downstream pressure
Clockwise to INCREASE-
downstream pressure
Figure 3
CP15 — Pressure Reducing Control
Clockwise to INCREASE
downstream pressure surge
set-point
Counterclockwise to DECREASE
downstream pressure surge set-
point
Figure 2
PV20C — Surge Control
4 IOM-A-ACV-912-11_612-11 2115
EDP# 1917038
© 2021 Watts
IOM-A-ACV-912-11_612-11 2115
EDP# 11917038
© 2021 Watts 5
