Grundfos Conlift1 Installation Und Betriebsanleitung Seite 12

9. Maintenance and service
Warning
The Conlift must only be serviced by
trained service personnel.
Always use original accessories from
Grundfos to ensure safe and reliable
operation.
Warning
If the power supply cable is damaged, it
must be replaced by the manufacturer,
the manufacturer's service partner or
similarly qualified person.
9.1 Maintenance
The Conlift does not require any special
maintenance, but we recommend to check operation
and pipe connections at least once a year and to
check and clean the collecting tank, if necessary.
Conlift2 pH+
Check the state of the granulate regularly.
Check the level of acid in the condensate with the
supplied pH indicator twice a year.
See section 9.2 Service.
9.2 Service
Thanks to the Conlift design, service can easily be
performed in case of malfunction or blocked pump.
Warning
The Conlift must only be serviced by
trained service personnel.
Warning
Before starting any service work,
remove the fuse, pull out the plug, or
switch off the power supply. Make sure
that the power supply cannot be
accidentally switched on.
All rotating parts must have stopped
moving.
9.2.1 Conlift1 and Conlift2
See illustrations on page 222.
Make the following checks and clean the collecting
tank, if necessary:
1. Disconnect the power supply.
2. Cut off the flow of condensate from the boiler or
other application, or stop the flow of condensate
to the Conlift.
3. Make sure that the hoses are not mechanically or
chemically damaged.
4. Remove the discharge hose by turning the
bayonet coupling, and check the O-ring.
The condensate in the hose will not run out due
to the non-return valve.
5. If the condensate is running out of the hose,
check and clean the non-return valve.
12
6. Press the side-locking catches and lift off the
motor support. Place it in upright position.
7. Remove deposits, dirt, algae and incrustations
under running water.
9.2.2 Conlift2 pH+
Warning
Condensates from boilers are
aggressive as they contain acid.
Use protective gloves and safety
goggles when performing service work.
Neutralisation unit
See illustrations on page 223.
Check and clean the neutralisation unit drawer
regularly.
Make the following checks, measure the pH level
and clean the collecting tank, if necessary.
1. Disconnect the power supply.
2. Cut off the flow of condensate from the boiler or
other application, or stop the flow of condensate
to the Conlift.
3. Check the pH value of the granulate in the
drawer with the supplied pH indicator.
4. If the drawer is empty or the pH indicator
indicates an acid level below 5, fill the drawer
with neutralisation granulate (approx. 1.5 kg).
5. Make sure that the hoses are not mechanically or
chemically damaged.
6. Remove the discharge hose by turning the
bayonet coupling, and check the O-ring.
The condensate in the hose will not run out due
to the non-return valve.
7. If the condensate is running out of the hose,
check and clean the non-return valve.
8. Press the side-locking catch and lift off the
neutralisation unit.
9. Press the side-locking catches and lift off the
motor support. Place it in upright position.
10. Remove deposits, dirt, algae and incrustations
under running water.
9.3 Contaminated lifting station or
components
If a Conlift has been used for a liquid
Caution
which is injurious to health or toxic, it
will be classified as contaminated.
If Grundfos is requested to service the lifting station,
Grundfos must be contacted with details about the
pumped liquid, etc. before the lifting station is
returned for service. Otherwise Grundfos can refuse
to accept the lifting station for service.
Incidentally, any application for service, no matter to
whom it may be made, must include detailed
information about the pumped liquid.
A lifting station returned for service must always be
cleaned in the best possible way.
Possible costs of returning the lifting station are to be
paid by the customer.