SANDPIPER M15 Non-Metallic - Manual (Page 23)

m15nmdl3sm-rev0713 Model M15 Non-Metallic Page 21
SOLENOID SHIFTED AIR
DISTRIBUTION VALVE OPTION
The solenoid shifted, air distribution
valve option utilizes electrical signals
to precisely control your pump’s
speed. The solenoid coil is connected
to a customer - supplied control.
Compressed air provides the pumping
power, while electrical signals control
pump speed (pumping rate).
OPERATION
The Solenoid Shifted pump has a
solenoid operated, air distribution valve
in place of the standard pump’s pilot
operated, air distribution valve. Where
a pilot valve is normally utilized to
cycle the pump’s air distribution valve,
an electric solenoid is utilized. As the
solenoid is powered, one of the pump’s
air chambers is pressurized while the
other chamber is exhausted. When
electric power is turned off, the solenoid
shifts and the pressurized chamber is
exhausted while the other chamber is
pressurized. By alternately applying
and removing power to the solenoid,
the pump cycles much like a standard
pump, with one exception. This option
provides a way to precisely control and
monitor pump speed.
BEFORE INSTALLATION
Before wiring the solenoid, make
certain it is compatible with your system
voltage.
Solenoid Connector
#2 Terminal Neutral
(Negative)
#1 Terminal
Power
(Positive)
3rd Terminal for
ground.
Wiring
Diagram
Before wiring, remove
terminal block from
conduit connector.