5
ELECTRICAL:
The proper operating voltage and other electrical information
can be found on the motor nameplate. These motors are designed
to run up to ±10% of the nameplate-rated voltage. The wiring
connection diagram can be found on either a plate attached to the
motor or on a diagram inside the terminal box cover.
• If voltage variations are greater than ±10%, do not
operate the pump.
• Incorrect voltage can cause fire or serious damage to the
motor and voids warranty.
• Ground the pump motor correctly before connecting it to the
power supply.
• Follow the wiring instructions when connecting the motor to
the power lines.
POSITION OF TERMINAL BOX.
To turn the motor so that the terminal box faces the right
direction, proceed as follows:
1. Disconnect the power to the pump motor.
2. Remove the coupling guards.
3. Remove the couplings.
4. Remove the bolts that fasten the motor to the motor stool.
5. Turn the motor to the required position (in quarter-turn
increments).
6. Follow steps 10B and 14–19 under Pump Reassembly
Sequence.
FIELD WIRING. All wiring connections and wiring sizes must
meet National Electrical Code and local requirements.
MOTOR PROTECTION. See the motor nameplate for electrical
connection/wiring diagram.
Pentair pumps must be used with the proper size and type of
motor starter to ensure protection against damage from low
voltage, phase failure, current imbalances, and overloads. The
overload should be sized to trip at the full load current rating of
the motor.
OPERATION:
PRIMING.
NOTICE: Under no circumstances should the pump be operated
without flow through the pump. Never operate the pump dry.
Operation of closed systems or open systems with the liquid
level above the pump priming plug:
1. Close the discharge isolating valve and loosen the needle
valve located in the assembly in the pump head (Figure 6).
Do not remove the needle valve.
2. Slowly open the isolation valve in the suction pipe until a
steady stream of liquid runs out the vent in the priming port.
3. Tighten the needle valve in the vent plug. Completely open
isolation valves.
Warning:
Hazardous Voltage
Can shock, burn or cause death. All electrical work should be
performed by a qualified electrician in accordance with the
National Electrical Code and all local codes and regulations.
Make sure that the motor voltage, phase, and frequency
match the incoming electrical supply.
Warning:
Hazardous Pressure
Do not run the pump with the discharge valve closed; the
water in the pump may boil, causing risk of explosion and
steam burns to anyone nearby.
Warning:
Hazardous Voltage
Disconnect all power to the pump before servicing or
working on the pump. Make sure that the power is locked out
and that the pump cannot be accidentally started.
Vented
Priming
Plug
Drain
Plugs
Back off needle valve
to vent air. Retighten
when vent port runs
a steady stream
of water.
Figure 6. Priming and drain plugs.
Warning:
Risk of Water Damage and Injury
Watch the direction of the priming plug and make sure that
the liquid escaping from it does not injure persons nearby
or damage the motor or other components. In hot water
installations, pay particular attention to the risk of injury from
scalding hot water or steam.