Operation Testing - Little Giant VCCA-20-P Manuel Du Propriétaire

MAINTENANCE

Operation Testing

Operation Testing
1. Turn on power to the pump.
2. Test pump operating switch by gently lifting the
external test/run lever to start the motor.
• Ensure the test lever has returned to its rest-
ing position after testing.
• If the pump is located against the furnace or
other vertical surface on the test switch side,
also verify the test lever is not hung up on the vertical surface preventing the pump from turning
off.
3. Disconnect the pump from the power source.
4. Test the high water level safety switch:
• Remove the four tank cover screws to lift the cover from the tank.
• Raise the high water level switch float.
• The switch should activate before the float contacts the tank cover.
• 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 applications).
To inspect and clean the tank and other components, follow these steps:
1. Disconnect the pump from the power source.
2. Remove tank cover assembly from the tank.
• Remove four screws that secure the cover
assembly.
• Carefully lift the cover assembly from the
tank and hold level.
3. Be sure the floats move freely. Clean as neces-
sary.
4. Remove the volute and check for obstructions. 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. Twist to unlock and remove the check valve and backwash the discharge port into the volute. Do
this over a sink.
• Be sure check valve locks into place with an audible click when reinstalling.
9. Replace the tank cover assembly.
10. Test operation of the system.
6