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TAURUS™ VS Variable Speed Pump Installation and User’s Guide
6. Bond the motor to all electrical equipment, metal
conduit and metal piping within 5 feet (1.5 M) of the
inside walls of the body of water in accordance with
the current National Electrical Code. UL requires use
of a solid copper bonding conductor not smaller than
8 AWG. See Figure 3.
Note: For Canada, a 6 AWG or larger solid copper
bonding conductor is required.
7. The pump should be permanently connected to either
a circuit breaker, 2-pole timer or 2-pole relay. If AC
power is supplied by a GFCI circuit breaker, use a
dedicated circuit breaker that has no other electrical
loads.
8. Connect the pump permanently to a circuit. Make
sure no other lights or appliances are on the same
circuit.
The Taurus VS Variable Speed Pump must be wired
according to the local electrical codes and standards.
Always refer to the National Electrical Code. This
pump should be installed by a licensed electrician.
The pump accepts 99-253V, 50 or 60Hz single phase
input power. The terminal block connections are
capable of handling up to 10AWG solid or stranded
wire. There are also fast-on type quick connectors,
however, check the local electrical codes for the
desired connection method. The connections must
be permanently made to the grounding terminal (see
Figure 3) in the field wiring compartment according
to the local electrical code. The motor controller will
automatically regulate the pump’s speed when running
on lower voltage to keep the current below 13.2A.
There is no wiring change required to run the pump on
110V nominal power, the same terminals are used as
with high voltage wiring.
The drive will operate on 2-phase Line-Line-Ground
electrical systems as well as Line-Neutral-Ground
systems. This pump must be permanently connected
by a circuit breaker as specified in the local electrical
code.
1. Be sure all electrical breakers and switches are turned
off before wiring motor. Always wait five (5) minutes
after disconnecting the power from the pump before
opening or servicing the drive.
2. Choose a wire size for the pump in accordance with
the current National Electrical Code and all applicable
local codes and ordinances. When in doubt use a
heavier gauge (larger diameter) wire. Be sure the
wiring voltage is within the operating range.
3. Be sure all electrical connections are clean and tight.
4. Cut wires to the appropriate length so they do not
overlap or touch when connected to the terminal
board.
5. Permanently ground the motor using the ground
screw located on the inside rear of the controller
interface (see Figure 3). Use the correct wire size
and type specified by the current National Electrical
Code. Be sure the ground wire is connected to an
electrical service ground.
Wiring Overview and Installation
Figure 3
Bonding
Lug
AC Power
Connections
Grounding
Screw
The field wiring compartment has a 1/2” NPT threaded
conduit port for the liquid tight fitting.
The bonding lug should be used to bond the motor
frame to the equipment pad.
Power should be turned off when installing,
servicing, or repairing electrical components.
Observe all warning notices posted on the existing equipment, pump,
and in these installation instructions.
RISK OF ELECTRICAL SHOCK OR ELECTROCUTION. The Taurus™ VS Variable Speed Pump must be installed by a
licensed or certified electrician or a qualified service professional in accordance with the National Electrical Code and all ap-
plicable local codes and ordinances. Improper installation will create an electrical hazard which could result in death or serious
injury to users, installers, or others due to electrical shock, and may also cause damage to property.
Always disconnect power to the pump at the circuit breaker before servicing the pump. Failure to do so could result in
death or serious injury to service people or others due to electric shock and/or property damage.
Read all servicing instructions before working on the pump.
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