Zehnder Rittling E-ZW 50 A-2, Руководство по эксплуатации

Страница: 13 / 24

13
5
. Maintenance / Service
Always disconnect from power before servicing!
Service and repair at electrical parts of the pump (cable, motor) has to be done by authorised service- companies
or producer.
In case of very low temperatures and in any case before the first frost the pump must be removed from water.
Empty the pump and store it in a place where it is protected from frost
.
Service and repair at electrical parts of the pump (cable, motor) has to be done by authorised service- companies or producer.
The servicing of the pump consists of cleaning and checking the pump body. The strainer may dismount through removing the screws at the
rear side of the pump. Complete this in reverse order.
A possible wear of the impeller (i.e. through abrasive media) may result in the damaging of the mechanical seal. The checking of the
mechanical seal and the motor should be done by a qualified electrician.
In case of very low temperatures and in any case before the first frost the pump must be removed from water. Empty the pump and store it in
a place where it is protected from frost. We recommend to switching on the pump for a very short time to avoid a jamming of the mechanical
seal every 2 month.
For the purpose of a repair service kits and service tools are available on request. You will find a topical overview about our service partners
at www.zehnder-pumpen.de.
We explicitly mention that spare parts and accessories which are not delivered and checked by Zehnder are. The built in and use of such
products may negatively affect the constructive set properties under these circumstances. For damages which arise by using of non-original
spare parts and accessories Zehnder will refuse any liability and warranty. For faults which you can not repair by yourself you should contact
our customer service or a qualified person.
6. Warranty
This pump carries a 24 month manufacturer warranty. The warranty period begins with the date of purchase by the end user. Proof of
purchase should be retained. Within this period we will remove all kind of shortcoming due to failures of material or assembling. It is up to
us either to repair or to replace the pump.
This warranty does not cover damage cause by improper use or wear and tear (i.e. mechanical seal). Also, there will be no warranty given in
case of unauthorized repair of the pump. Consequential damages caused by failing of the pump are not covered by the manufacturer.
7. Disposal
For EU-countries only.
Do not dispose the pump into the domestic waste.
In accordance to the European guideline 2002/96/EG concerning electrical and electronic equipment and implanting into
national law used electrical tools have to be collected separately and supplied to an environmentally compatible
recycling.
8. Technical Modification
… without prior notice.
9. Fault, possible reason and recovery
Faults Possible reasons Recovery
Motor does not run Wrong or missing voltage Check the power supply
Incorrect connection Adjust the connection
Power cable damaged Renew power cable (customer service)
Impeller blocked Clean
Motor protection activated (superheated,
blocked, voltage error or other defect) Check, inform the customer service
Float switch blocked Position the pump so, that float switch
works unhindered
Pump motor damaged Consult the customer service
Motor runs, but does not lift Impeller blocked or worn Clean or renew
Pressure pipe blocked/ - hose shrinked Clean/ remove the kink
Strainer blocked Clean
Pump is not correct de- aerated At the first starting up of the pump de-
aerate the pressure pipe so that water
will attain the pump housing.
Flow rate too lowly Pump is not correct de- aerated At the first starting up of the pump de-
aerate the pressure pipe so that water
will attain the pump housing.
Motor runs too loud Dimensions of pressure pipe too small Dimension 25mm in diameter at
minimum
GB
B