Replacing An Existing Pump - Pentair FLOTEC FP4212 Owner's Manual

REPLACING AN EXISTING PUMP

Figure 1 - Install Control Valve and Gauge
Piping omitted
Discharge
for clarity
Drive
Port
Suction
Port
Figure 2 - Drive and Suction Functions
Suction
Pipe
Figure 3 - Reversed Connections to Well
Figure 4 - Mount Ejector – Shallow Well
4
4182 0502
Suction
(Larger)
Port
Drive
(Smaller)
Port
Drive Pipe
sends water
down the well
to drive water
up through the
Suction Pipe
to Pump Suction
2755 0197
If well head and pump
don't match, twist
reinforced flexible pipe
to connect drive
and suction pipes.
Well
Head
Drive
Pipe
2759 0197
Tap clamp
to seat it
4183 0502
DEEP WELL
RISK OF ELECTRIC SHOCK. Can shock, burn or kill.
Disconnect power to pump before working on pump or motor.
1. Drain and remove the old pump. Check pipe for scale, lime,
rust, etc., and replace it if necessary.
2. Install the control valve and pressure gauge in the pump body.
3. If your old pump has the suction pipe (the larger port – see
Figure 2) below the drive port, you will need to install flexible
pipe between the well head and the pump so that the
connection will be correct.
NOTE: Your old ejector (in the well) may not be properly
matched to your new pump. If the pump does not perform
properly, we recommend that you install Flotec ejector kit
FP4800.
4. Install the pump in the system. Make sure that all pipe joints
in the suction pipe are air-tight as well as water tight. If the
suction pipe can suck air, the pump will not be able to pull
water from the well.
5. Adjust the pump mounting height so that the plumbing
connections do not put a strain on the pump body. Support the
pipe so that the pump body does not take the weight of piping
or fittings.
You have just completed the well plumbing for your new deep
well jet pump. Please go to Page 8 for discharge pipe and tank
connections.
SHALLOW WELL
Risk of electric shock. Can shock, burn or kill.
Disconnect power to pump before working on pump or motor.
1. Drain and remove the old pump. Check the old pipe for scale,
lime, rust, etc., and replace it if necessary.
2. Install the control valve and pressure gauge in the pump body.
3. Install ejector kit FP4855 with a Series 4200, or kit FP4875
with a Series 4300 pump (kits are sold separately). Follow the
instructions provided with the kit. Be sure to align the venturi
with the top hole on the front of the pump.
NOTE: Always replace the ejector when replacing the pump in
a shallow well installation.
4. Install the pump in the system. Make sure that all pipe joints
in the suction pipe are air-tight as well as water tight. If the
suction pipe can suck air, the pump will not be able to pull
water from the well.
5. Adjust the pump mounting height so that the plumbing
connections do not put a strain on the pump body. Support the
pipe so that the pump body does not take the weight of piping
or fittings.
You have just completed the well plumbing for your new shallow
well jet pump. Please go to Page 8 for discharge pipe and tank
connections.
P15003 (12-15-22)