Startup; Checking The Function; Maintenance And Service; Maintenance - Grundfos Conlift1 LS Installation And Operating Instructions Manual

8. Startup

Start up the Conlift in accordance with
Note
local regulations and accepted codes of
good practice.
1. Check that all hoses and connections are tight.
2. Connect the power supply.

8.1 Checking the function

Alarm
1. To ensure that the alarm level is reached,
squeeze the discharge hose (or close the
isolating valve, if fitted), and fill water into the
tank. The pump will be started via the float
switch.
2. Continue filling water into the tank until the safety
overflow switch is activated. If no external alarm
is connected to the Conlift, this function can be
checked by means of a multimeter.
The safety overflow switch must be
Note
activated before the water starts
running out of the Conlift.
3. Stop filling water into the tank and stop
squeezing the discharge hose. The alarm stops
(the switch opens). The pump continues
operating. When the stop level is reached, the
pump will stop.
After checking the function, push the inlet hose back
into the lifting station and let the condensate from the
boiler or air-conditioning system run into the tank
again.

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.
6

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 Conlift
See illustrations on page 9.
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.
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.

9.3 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.