10
SX218 (03/09/20)
ELECTRICAL CONNECTION
Risk of electric shock. Can shock, burn or kill.
All wiring should be done by a qualified electrician.
• Disconnect power to pump before servicing.
• Check voltage and phase stamped on pump motor nameplate
before wiring. Be sure they comply with your electric current
supply. They MUST be the same. Contact your local power
company to verify that voltage, phase and current supply match.
• Refer to the illustration below for minimum recommended
pump panel components that help safeguard your pump
during operation.
BEFORE START-UP
Check Rotation:
Before pump is put into operation, rotational direction must be
checked to ensure proper performance of pump. Refer to illustration
shown below.
Direction of pump rotation is determined by viewing liquid end of
pump from the back or driver side, and not from looking into the
impeller eye or front of volute case. A rotation direction arrow is cast
into the pump body and shows correct rotation.
Risk of electric shock. Can shock, burn or kill.
Disconnect power to pump before servicing. Do not attempt any
wiring changes without first disconnecting power to pump.
• Single Phase Motors: Refer to wiring information on the motor
plate to obtain proper rotation.
• Three Phase Motors: If pump runs backwards, reverse any two
leads coming off incoming power (L1, L2, L3) until proper rotation
is obtained. Reverse L1 and L2, or L2 and L3, or L1 and L3.
• Pump running backward: Centrifugal pumps will still pump liquids,
however, GPM and head (discharge pressure) will be a fraction of
the published performance.
NOTICE A motor protection device must be installed for all
three-phase pump motors.
INSTALLATION
Check all local electrical codes prior to installation.
When installing Class I pumps for operating swimming pools, power
to the pump is to be:
• Supplied by an isolating transformer, or
• Supplied through a residual current device (RCD) with a rated
residual operating current not exceeding 30mA.
1 Contactor
2 Lightning Arrestor
3 Loss of Prime
Protection
4 Fuseable Disconnect
5 Starter
NEMA 3R Enclosure
3
6
9
12
Engage start switch momentarily (bump
motor) to observe rotational direction.
As viewed.
Viewed from
this direction.
Clockwise rotation
Minimum recommended components to protect
your pump during operation.
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