5
Electrical
All electrical work should be performed by a qualified
electrician in accordance with the latest edition of the National
Electrical Code, local codes and regulations.
Warning:
The safe operation of this pump requires that it
be grounded in accordance with the National Electrical Code and
local governing codes or regulations. The ground wires should
be copper conductor of at least the size of the circuit conductor
supplying power to the pump. Minimum ground wire size is 14
AWG. Connect the ground wire to the grounding point in the
terminal box and then to an acceptable ground. Do not ground
to a gas supply line.
The proper operating voltage and other electrical information
can be found on the nameplate attached to the top of the motor.
Depending on pump model, the motor has either built-in, automatic
resetting thermal protection or is impedance protected and in
either case does not require additional external protection. The
temperature of the windings will never exceed allowable limits,
even if the rotor is locked.
Wire sizes should be based on the ampacity (current carrying
properties of a conductor) as required by the latest edition of
the National Electrical Code or local regulations. Both the power
and grounding wires must be suitable for at least 194°F (90°C).
For all 115V and 230V models: Connect the white/white electrical
leads from the circulator to the incoming power leads with wire
nuts or other approved connectors. Attach incoming grounding
wire to either of the green grounding screws.
Ground
White
Green
Grounding
Screws
Capacitor
Wiring diagram for all 115V and 230V single speed pumps.
Figure 1
