Xylem IM244R04 SPD Plus Variable Speed Pump Control - Manual (Page 8)

8
SECTION 3: SYSTEM DESIGN
SPD PLUS CENTRIFUGAL PUMP CONTROL SYSTEM
The SPD Plus pump controller is a simple, easy to use
and commission Variable Speed Drive (VSD) designed
specifically for use in submersible or above ground
pump systems. The SPD Plus features an integrated
Start-Up Assistant which simplifies system commis-
sioning and setup.
The following diagrams show some typical system
designs using the SPD Plus.
DIAGRAM #1 shows a typical set up for a submersible pump and control system.
3
FLOW
4
6
5
1
2
8
9
7
U1
V1
W1
GND
U2
V2
W2
GND
10
11
NOTE
The SPD Plus is not recommended for the residential
well applications. Consult CentriPro for suitable
Variable Speed Controllers designed for residential
well pumps.
NOTE
Systems MUST be designed by qualified technicians
only and meet all applicable state and local code
requirements.
SUPPLY POWER
1 DRIVE CONTROLLER
2 FUSIBLE DISCONNECT
3 PRESSURE GAUGE
4 AIR DIAPHRAGM TANK
5 PRESSURE TRANSDUCER
6 3 PHASE OUTPUT (ALWAYS)
7 DISCHARGE CHECK VALVE
8 GATE VALVE (HIGHLY RECOMMENDED
9 SUBMERSIBLE PUMP END
10 SUBMERSIBLE MOTOR (3 PHASE)
11 PRESSURE RELIEF VALVE