4
Single phase - Wiring diagram
220-240 V / 50 Hz
PE
Ha
Main phase
Hi
Auxiliary phase
TW
Thermostatic protection switch
C
Condenser
Make sure that you turn off the power supply when connecting the cables of the pump
Please check the turning direction of three-phase motors following each connection. If this does
not correspond to the arrow on the motor two connections in the junction must be reversed.
Every motor must be permanently grounded.
Connections which do not conform to the above mentioned safety instruction are not
covered by the warranty.
Section 6
Servicing
The pumps are designed to operate for many years without servicing. If a failure does occur, it
most likely will be a moving part of the pump.
Always disconnect the power supply to the pump before servicing.
The replacement of the electrical motor must be done by a professional.
Section 7
Troubleshooting
Pump will not prime
No water in strainer pot
Strainer pot lid is not tight
Damaged lid O-ring
Water level is below skimmer
Strainer basket or skimmer basket is clogged
Closed valve in piping system
Air leak in suction line
Motor does not turn
Power switch is off
Circuit breaker has tripped
Pump is off-mode of a timer controlled circuit
Motor terminal connections are incorrect
Motor shaft is locked by bad bearing
Impeller is locked by debris
Section 8
Technical data
Technical data as well as illustrated parts list can be found at the end of this manual.
Hi
TW
Ha
C
N
LI
Three phase - Wiring diagram
380-420 V / 50 Hz
Three phase motors
wired to main voltage
W2
of 3x230 Volt require
a DELTA connection
Three phase motors
wired to main voltage
W2
of 3x400 Volt require
a STAR connection
Low flow / high filter pressure
Filter is dirty
Restriction in return line
Low flow / low filter pressure
Strainer basket or skimmer basket is clogged
Clogged impeller
Air leak in suction line
Restriction in suction line
Reverse rotation of motor (three phase only)
Noisy pump
Air leak in suction
Foreign matter in pump housing
Cavitation
U2
V2
U2
V1
W1
U2
V2
U2
V1
W1