Operation Testing; Maintenance - Franklin Electric Little Giant VCMX-20 Series Owner's Manual

Operation Testing

1. Turn on power to the pump.
2. Test pump operating switch by press-
ing lightly on the external test/run
lever to start the motor.
3. Test high level switch by raising high
level switch float.
• If wired to NO terminal, air
handling device should shut down when float is raised.
• If wired to NC terminal, external component (alarm or relay) should activate when float is raised.

MAINTENANCE

Risk of bodily injury or property damage.
• Do not allow the tank to overflow during this maintenance.
• Inspect and test the condensate removal system condition and operation every 6 months (more frequently in heavy-use applica-
tions).
1. Disconnect the pump from the power source.
2. Remove the ¼ turn check valve.
Inspect the check valve and clean
with warm water and mild soap if
necessary.
3. Remove tank assembly from the
pump by squeezing the reservoir at
places indicated to release the
latch.
• Place a finger in one of the
larger holes in the corner of the
top and lift to remove the top
part of the pump. The top
hinges on the opposite end of
the tank.
4. Be sure the floats move freely. Clean as necessary.
5. Clean the tank with warm water and mild soap.
6. Flush tank with fresh water. This helps to ensure that residual condensate does not create localized
pockets of acid that could cause pitting.
7. Check inlet and outlet piping. Clean as necessary. Be sure there are no kinks in the line that would
inhibit flow.
8. Replace the tank assembly to the pump.
9. Replace inlet and outlet piping.
• Fully insert the check valve into the discharge line,
ensuring that the O-ring and discharge line are free
of debris.
• Insert the check valve into the pump discharge hole
and twist it by hand ¼ turn.
• Check to ensure that the check valve is securely
locked into position.
10. Test operation of the system.
MAINTENANCE
Operation Testing
7