Zehnder Pumpen ZFS 71 Ex, Руководство по эксплуатации

Страница: 27 / 31

27
8.
Malfunctions; causes and elimination
- Disconnect the power supply before carrying out any kind of work on the plant!
Malfunction Cause Elimination
1. Motor is not rotating - absence of line voltage or improper
line voltage - check voltage supply
- incorrect connection - correct the connection
- defective power cable - replacement (customer service)
- defective/wrong capacitor - replacement (customer service)
- impeller/cutting knife blocked - cleaning
- activated motor protection (overheat-
ing, blocking, improper voltage or
other malfunction) - inspection, inform customer service
- control malfunction/defective floating
switch - inspection, inform customer service
- motor defective - replacement (customer service)
2. Motor rotates, but does not convey - impeller blocked or worn out - cleaning/replacement
- check valve blocked - cleaning
- gate valve blocked/
closed - cleaning/opening gate valve
- pressure pipe blocked/hose buckled - cleaning/eliminating kinks
- intake socket blocked - cleaning
- incorrect rotating direction - correction
- water deficiency inside the shaft - switch off/inform customer service
3. Motor switches off during start-up - voltage improper or unsteady - correction/customer service
- thermal protection laid out incorrectly - inspection/customer service
- current consumption too high - customer service
4. Motor does not switch off - control malfunction - customer service
- wrong/defective floating switch - replacement/customer service
9. Warranty
As manufacturer, we provide a warranty of 24 months on these pumps from date of purchase.
Your sales receipt passes for verification. During that warranty period, we gratuitously remedy all deficiencies which
are attributed to material or fabrication defects by either repairing the plant, or by replacing the defective parts (to our
choice).
Defects which are attributed to misuse or wear are excluded from warranty. We will assume no responsibility for
consequential damages that are caused by a breakdown of the plant. In case of warranty, adress yourself to your
specialist retailer.
10. Technical Modifications
We reserve the possibility of technical modifications for the purpose of further development.