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The pump must be securely fastened to a solid
foundation. The pump should always be mounted in
a horizontal position on a level foundation. Failure to
properly secure the pump may result in failure of the
pump or piping and damage to the surrounding area.
SUCTION PIPING
Do not exceed 25' total suction lift. If on an installation,
excessive total suction lifts are encountered, do one or
more of the following to correct this condition:
1. Locate pump nearer to liquid source.
2. Increase pump suction pipe size.
3. Simplify suction piping by elimination of valves and
fittings where possible.
4. Decrease pump capacity.
DISCHARGE PIPING
The pump case is tapped for 1-1/2" pipe for 3hp and
under units. For 5hp units it is tapped for 2" pipe.
Larger or smaller pipe may be used depending upon
the installation. The discharge pressure is not to
exceed 100 psi for 3hp and under units. For 5hp units
the discharge pressure is not to exceed 150psi.
VOLTAGE DATA
Single phase motors as received will be wired for
230V operation. Note: The 2 and 3 hp single phase
motors are 230V only.
All three phase motors are 230/460V units. Ensure
that the motor connections are correct for the
voltage available.
The voltage available at the motor must be within
10% of the rated voltage. For offset installations
be sure that adequate wire size is used for the
motor involved.
MOTOR PROTECTION
Single phase 3/4 to 3 hp motors have built-in thermal
protection for all voltages.
Three phase and 5 hp single phase motors do
not have built-in thermal protection. It is highly
recommended that a properly sized magnetic starter
be used with all three phase motors.
All motors should be equipped with a correctly fused
disconnect switch to provide protection. Consult local
or national codes for proper fuse protection.
ROTATION DATA
The pump must run in the direction of the arrow
on the pump bracket. At the time of installation,
momentarily close the entrance switch to determine
rotation; if rotation is not correct, interchange any two
of the three motor leads, which will reverse
the rotation.
INITIAL PRIMING
Do Not Run Pump Dry
The pump must be filled with water for the initial
start. Failure to do so will result in damage to the
mechanical shaft seal.
Three horsepower and under units are designed to
automatically re-prime with or without a check or foot
valve in the suction line. Five horsepower units require
a check or foot valve for this operation.
For initial start-up, fill the pump with liquid through the
discharge opening in the top of the case. This can be
done before the discharge piping is installed. As an
alternative it is recommended to install a tee above
the pump and use the top of the tee for priming.
Pour in approximately one gallon of water for all units
except 5 hp which will need two gallons. Install the
discharge piping or pipe plug, if a tee is used.
The unit can now be started.
CHECK OR FOOT VALVE
It is recommended that either a check or foot valve
be used in the suction line on permanent installations.
This will result in quicker water delivery upon starting,
thereby eliminating the priming issues.
If the pump is to be used in conjunction with a
pressure tank, a check or foot valve must
be used.
FLUSHING
The unit can be back flushed periodically to remove
any sand or debris that may have been pulled into
the pump from the liquid source. It is not necessary
to remove any piping if a tee is installed above
the pump.
To back flush the unit, remove the plug in the tee and
the pipe plug from the lower front face of the case.
Pour water into the top opening until the liquid coming
from the lower front opening is clean. Reinstall all pipe
plugs or piping and reprime the pump.
DRAINING THE PUMP
To drain the pump, remove the plug from the
discharge tee and the pipe plug from the lower front
face of the case. If the unit is to be inoperative for an
extended period of time, it is suggested that the unit
be drained. Suction line should also be drained to
prevent freezing.
Remove the fuses from the entrance switch to ensure
that the unit is not inadvertently started while drained,
as damage to the shaft seal would occur.
SUCTION SCREEN
The liquid being pumped should be screened properly
to prevent debris from being taken into the system.
PUMP DISASSEMBLY INSTRUCTIONS
It is not necessary to remove the suction and
discharge piping as the pump case is designed so
that no wear would occur which would necessitate
replacing this part.
1. Drain the pump of its liquid charge and open the
power supply switch contacts and remove fuses.
2. Disconnect the electrical wiring from the motor
and remove the cap screws that secure the pump
bracket to the pump case.
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