Wilo FLA Compact-1 Helix V16, Инструкция по установке и эксплуатации

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English
Installation and operating instructions Wilo-FLA Compact 35
10 Faults, causes and remedies
Faults, particularly those affecting the pumps or
the control system, should only be remedied by
Wilo’s customer service or a specialist company.
NOTICE!
The general safety instructions must be observed
during any maintenance or repair work. Also fol-
low the installation and operating instructions of
the pumps and the control device!
Fault Cause Remedy
Pump does not start No mains voltage Check the fuses, cables and connections
Main switch “OFF” Switch on the main switch
Water level in break tank too low, i.e.
low-water level reached (fault only
occurs in test operation) Check the break tank’s inlet valve/supply line
Low-water signal transmitter is defective
(fault only occurs in test operation) Check and, if necessary, replace the
low-water signal transmitter
Shut-off device closed at pressure
sensor/pressure switch Check and open the shut-off device if
necessary
Start-up pressure is set too low Check the setting and correct it if necessary
Switch-on/off pressures for pressure
switch are not coordinated Check the setting and correct it if necessary
Motor protection has triggered
(fault only occurs in test operation) Check the default values against the pump or
motor data, measure the current values and
correct the setting if necessary. Check the
motor for defects and replace it if necessary
Power contactor is defective Check it and replace it if necessary
Turn-to-turn fault in the motor Check and, if necessary, replace the motor or
have it repaired
Pump does not shut down Connection pipe between VBH and pump
blocked or shut off Check the connection pipe, if necessary,
remove the clogging or open the shut-off
device
Air in the connection pipe between VBH
and pump Check and shut off the piping and vent the
pumps if necessary
Impellers are blocked Check the pump and replace it or have it
repaired if necessary
Non-return valve is leaking Check and replace the seal or non-return
valve if necessary
Non-return valve is blocked Check and remove the blockage or replace
the non-return valve if necessary
Gate valve in the system is closed or not
sufficiently open Check and open the shut-off device
completely if necessary
Flow rate is too high Check the pump data and default values and
correct them if necessary
Shut-off device is closed at pressure
sensor Check and open the shut-off device if
necessary
Switch-off pressure is set too high Check the setting and correct it if necessary
Pressure switch or cable are defective Check pressure switch or cable and replace if
necessary
Incorrect direction of rotation of the
motors Check direction of rotation and correct by
changing over phases if necessary
Switching frequency is too high or
fluttering Connection pipe between VBH and pump
blocked or shut off Check the connection pipe, if necessary,
remove the clogging or open the shut-off
device
Shut-off device is closed at pressure
switch Check and open the shut-off device if
necessary
Incorrect supply pressure at diaphragm
expansion tank Check the supply pressure and correct it if
necessary
Valve at diaphragm expansion tank is
closed Check the valve and open it if necessary
Switching difference is set too low Check the setting and correct it if necessary