Finish Thompson KC3, 4, & 5 SERIES User Manual

Finish Thompson Pumps

OPERA

OPERATION

TION

FLOODED SUCTION SYSTEM

Completely open suction and close discharge valve.

Start the pump. Adjust the flow rate and pressure by regulating the
discharge valve. Do not attempt to adjust the flow with the suction
valve.

Check liquid flow. If there is no flow, see the Troubleshooting
section.

SUCTION LIFT SYSTEM

Prime the system by filling the priming chamber and/or suction
line with liquid.

Allow time for trapped air to work its way out.

Start the pump. Adjust the flow rate and pressure by regulating the
discharge valve. Do not attempt to adjust the flow with the suc-
tion valve.

Check liquid flow. If there is no flow, see the Troubleshooting
section.

FLUSH SYSTEMS

CAUTION

CAUTION::::: Some liquids react with water.

Completely close suction and discharge valves.

Connect water (or flush solution) supply to water inlet valve.

Connect drain hose to water valve.

Open inlet and outlet valves. Flush system until pump is clean
(approximately 5 minutes).

KC3, 4, & 5 SERIES

Sealless

Non-Metallic Centrifugal Pump

Installation and Maintenance Instructions

INST

INSTALLA

ALLA

ALLATION

TION

PIPING

Support piping near the pump to eliminate any strain on the pump
casings.

To minimize head loss from friction:

(a) Increase pipe size by 1 diameter.

(b) Use minimal number of pipe bends.

Position pump as close to the liquid source as possible.

Maintain a flooded suction (liquid above the pump prior to being
primed).

Ensure that the piping does not leak and suction is not prone to
clogging.

If flexible hose is preferred, use a reinforced, chemically compat-
ible hose rated for the proper temperature and pressure. This
helps avoid collapse or kinks.

Install valves on suction and discharge lines (a minimum of 10
pipe diameters from the pump).

For units in a suction lift system, install appropriate piping in the
discharge to allow priming of the pump.

The suction valve should be completely open to avoid restrict-
ing the suction flow.

CAUTION:

CAUTION: To stop the pump if prime is lost, use one of the follow-
ing: (1) pressure switch on the discharge, (2) vacuum switch on
the suction, (3) a power monitor to monitor pump motor power.

10. When pumping liquids that may solidify or crystallize, a flush sys-

tem should be added to the piping. See Figure 1. Install water inlet
and outlet valves as shown.

ELECTRICAL

Install the motor according to NEC requirements and local
electrical codes. Motor should have an overload protection
circuit.

Wire the motor for counter clockwise rotation when facing the
fan end of the motor.

To verify the correct rotation of the motor:

a. Install the pump into the system.
b. Fully open the suction and the discharge valves.

c. Allow fluid to flow into the pump. Do not allow the pump to

run dry. (Due to the unique magnetic design of this pump, it
can’t be run dry without damage to the internal pump
components).

d. Jog the motor (allow it to run for only one to two seconds)

and observe the rotation of the motor fan. Refer to the
directional arrow on the pump if needed.

NOTE

NOTE::::: A pump running backwards will pump but at a greatly
reduced flow and pressure.

Figure 1

Suction

Valve

Water Outlet

Valve

Discharge Valve

Water Inlet Valve

MOUNTING

Motor should be securely fastened.

WARNING:

WARNING: Magnetic field hazard.

Magnetic field hazard.

Magnetic field hazard. This pump contains powerful rare

earth magnets. When the pump is disassembled (not connected to a
motor) and the magnets are exposed, these magnets produce power-
ful magnetic fields. Individuals with cardiac pacemakers, implanted
defibrillators, other electronic medical devices, metallic prosthetic heart
valves, internal wound clips (from surgery), metallic prosthetic devices
or sickle cell anemia must not handle or be in the proximity of the
magnets contained inside the pump. Consult a health care provider for
specific recommendations before working with this pump.