Page 6
Section 3
(continued)
Diagram #2 shows a set-up for municipal water connection.
FLOW
AIR
4
8
6
3 PHASE OUTPUT
TO MOTOR
5
1
2
SUCTION
3
8
9
7
1
SPD CONTROLLER
6
AIR DIAPHRAGM TANK
2
FUSIBLE DISCONNECT
7
3 PHASE MOTOR
3
CENTRIFUGAL PUMP
8
GATE VALVE (BALL VALVE)
4
CHECK VALVE
9
PRESSURE GAUGE
5
PRESSURE TRANSDUCER (CABLE ASSEMBLY)
10
PRESSURE RELIEF VALVE
NOTES:
For single phase input power, use L1 and L3 terminals and adjust motor overload switches
to 50% of controller rating or lower.
9
T1
T2
T3
L1
L2
L3
SUPPLY POWER
GND
GND
10
SYSTEM DESIGN
