Pentair IntelliFloXF Installation And User Manual page 25

Always disconnect power to the IntelliFloXF
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.
DO NOT open the strainer pot if pump fails to prime or if pump has been operating without water in the strainer pot. Pumps operated
in these circumstances may experience a build up of vapor pressure and may contain scalding hot water. Opening the pump may
cause serious personal injury. In order to avoid the possibility of personal injury, make sure the suction and discharge valves are
open and strainer pot temperature is cool to touch, then open with extreme caution.
Be sure not to scratch or mar the polished shaft seal faces; seal will leak if faces are damaged. The polished and lapped faces of
the seal could be damaged if not handled with care.
Motor Care
Protect from heat
1. Shade the motor from the sun.
2. Any enclosure must be well ventilated to prevent
overheating.
3. Provide ample cross ventilation.
Protect against dirt
1. Protect from any foreign matter.
2. Do not store (or spill) chemicals on or near the motor.
3. Avoid sweeping or stirring up dust near the motor
while it is operating.
4. If a motor has been damaged by dirt it may void the
motor warranty.
5. Clean the lid and locking ring O-ring, and sealing
surface of the pump pot.
Protect against moisture
1. Protect from continuous splashing or continuous
sprayed water.
2. Protect from extreme weather such as flooding.
3. If motor internals have become wet - let it dry before
operating. Do not allow the pump to operate if it has
been flooded.
4. If a motor has been damaged by water it may void
the motor warranty.
The Mechanical Seal
The mechanical seal consists primarily of two parts,
a rotating ceramic seal housed in the impeller and
a stationary spring seal in the sealplate. The pump
requires little or no service other than reasonable care.
A mechanical seal may occasionally become damaged
and must be replaced.
Spring Half:
Carbon face is
pointing outward
Mechanical Seal
Variable Speed Pump at the circuit breaker and disconnect the communication cable
®
Ceramic &
Rubber Half:
White ceramic face
is pointing outward
XF
®
INTELLIFLO and INTELLIPRO
Pump Disassembly
Tools required:
•
Locking pliers
•
Flat blade and Phillips head screwdriver
•
9/16 inch wrench
•
3/4 inch socket wrench
•
9/64 inch Hex key wrench
To remove and repair the motor subassembly, follow the
steps below:
1. Turn off the pump circuit breaker at the main panel.
2. Drain the pump by removing the drain plugs.
3. Disconnect the RS-485 communication cable from the
pump (if connected to pump).
4. Disconnect supply power in the field wiring compartment.
5. Remove (3) Phillips head screws from the top of the
device located under the key pad cover.
6. Remove the drive by lifting upward to pull off the motor.
7. Using a 9/16 inch wrench, remove the six (6) nuts that
secure the main pump body (strainer pot/volute) to the
rear subassembly.
8. Gently pull the two pump halves apart, removing the
rear subassembly.
9. Remove the three hex head screws holding the diffuser
in position with a 9/64 inch hex key wrench
10. Hold the impeller securely in place by hand. Remove
the impeller lock screw located at the center of the
impeller. The screw is a left-handed thread and loosens
in a clockwise direction. A deep well 3/4 inch socket and
ratchet will fit the impeller screw. Remove the impeller
screw o-ring. Inspect the o-ring for damage, cracks etc.
Replace if damaged. Remove the (3) screws on the fan
cover and remove fan cover.
11. Using locking pliers to hold the motor shaft, twist the
impeller counter-clockwise to remove it from the shaft.
12. Remove the four (4) nuts from the seal plate to the motor
using a 9/16 inch wrench.
13. Place the seal plate face down on a flat surface and
press out the ceramic part of the mechanical seal.
14. Clean the seal plate, seal housing, and the motor shaft.
Pump illustrated parts view on the next page
XF
®
Variable Speed Pump Installation and User's Guide
21
SERVICING