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Electrical Installation
RISK OF ELECTRICAL SHOCK OR ELECTROCUTION. This pump must be installed by a licensed or certified electrician or a
qualified service professional in accordance with IEC 60364 (Low-voltage electrical installations), IEC 60364-7-702 (Requirements
for special installations or locations - Swimming pools and other basins) and all applicable 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, users or others due to electric shock.
Read all servicing instructions before working on the pump.
Note: ALWAYS reinstall the cover onto the field wiring compartment when leaving the pump unsupervised. This will
prevent foreign matter (rainwater, dust, etc.) from accumulating inside the compartment.
Note: When connecting the pump to an automation system, continuous power must be supplied to the pump
by connecting it directly to the circuit breaker. When using an automation system, be sure that no other lights or
appliances are on the same circuit.
Wiring
DO NOT install this pump in conjunction with a
motor starter. Using a motor starter with this pump
can cause low voltage alarms and may cause permanent drive damage.
1. Be sure all electrical breakers and switches are
turned off before wiring motor.
STORED CHARGE - Wait at least sixty
(60) seconds before servicing.
2. Be sure that the supply voltage meets the
requirements listed on the motor nameplate. If these
requirements are not met, permanent motor damage
may occur.
3. In order to comply with EMC directive, a shielded
power supply cable, compliant with IEC 60364 (Low-
voltage electrical installations), IEC 60364-7-702
(Requirements for special installations or locations
- Swimming pools and other basins), shall be used.
The 2 ferrites provided with the pump shall be applied
on the cable close to drive-end.
4. Use a strain relief and be sure all electrical
connections are clean and tight.
5. Cut the wires to the appropriate length so they do not
overlap or touch when connected.
6. Wire the pump according to instructions given on the
inside of the field wiring cover, then secure the field
wiring cover with the four (4) corner screws.
Factory-Installed
Surge Jumper
Ground Wire
Connection
(Green Screw)
Figure 3
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WHISPERFLO
VS and MAX-E-PRO
Bonding Lug
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VS Commercial Variable Speed Pump Installation and User' s Guide
Grounding
1. Permanently ground the motor using the green
ground screw (Figure 3). Use the correct wire
size and type specified by IEC 60364 (Low-
voltage electrical installations), IEC 60364-7-702
(Requirements for special installations or locations
- Swimming pools and other basins). Be sure the
ground wire is connected to an electrical service
ground.
2. The pump should be permanently connected to either
a circuit breaker, 2-pole timer or 2-pole relay.
Note: If AC power is supplied by a RCD circuit
breaker, the pump should be wired on its
own independent circuit unless the pump is
operated in tandem with a Pentair salt chlorine
generator.
3. A surge jumper has been factory-installed between
the two (2) bottom screw terminals in the wiring
compartment. Ensure this surge jumper is in place
before wiring the pump. See Figure 3.
This surge jumper grounds all drive components
and will protect them from repeated voltage
surges. If surge jumper is not installed damage to the pump drive may
occur.
Bonding
1. Bond the motor to the structure in accordance with
IEC 60364 (Low-voltage electrical installations), IEC
60364-7-702 (Requirements for special installations
or locations - Swimming pools and other basins). Use
a solid copper bonding conductor not smaller than
2.5 mm
.
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2. Connect the wire from the accessible bonding lug
on the motor to all metal parts of the swimming
pool, spa, or hot tub structure and to all electrical
equipment, metal conduit, and metal piping within 5
feet (1.5 meters) of the inside walls of the swimming
pool, spa, or hot tub. Run a wire from the external
bonding lug to the bonding structure. See Figure 3.
Note: When the pump is started and stopped by removing
power with a relay or timer, a two-pole device should be used to
apply and remove power to both POWER LINE TERMINALS.