Spare Parts; Disposal - Wilo COF-2 BL Notice De Montage Et De Mise En Service

English
Fault
In the case of the municipal water
supply version of the pressure-
boosting system, the low-water
safety activates frequently
Automated operation defective
Discharge valve not sealed
The pressure-boosting system does
not stop or does not start
The pumps do not stop
If the fault cannot be remedied, please consult
a specialist technician or your closest Wilo
customer service agent.

11 Spare parts

Spare parts may be ordered or repair work
arranged via a specialist retailer and/or Wilo cus-
tomer service.
To avoid queries and incorrect orders, all data on
the rating plate should be submitted with each
order.

12 Disposal

Information on the collection of used electrical
and electronic products
Proper disposal and appropriate recycling of this
product prevents damage to the environment and
dangers to your personal health.
NOTICE
Disposal in domestic waste is forbidden!
In the European Union, this symbol can appear on
the product, the packaging or the accompanying
documentation. It means that the electrical and
electronic products in question must not be dis-
posed of along with domestic waste.
To ensure proper handling, recycling and disposal
of the used products in question, please note the
following points:
• Only hand over these products at designated, cer-
tified collecting points.
• Observe the locally applicable regulations!
Please consult your local municipality, the nearest
waste disposal site, or the dealer who sold the
product to you for information on proper disposal.
For further information on recycling, go to
www.wilo-recycling.com.
For more information, visit www.wilo.com.
24
Cause
Low water cut-out switch is set
too high
Municipal water supply pressure
drops when pumps activate.
Switchgear defective
Sensor defective
Wires disconnected
Flow switch defective
Valve diaphragm or gasket is
destroyed
Pressure sensor gate valve is
closed
Check the flow switch
Remedy
Adjust and correct the cut-out switch settings.
Adjust the low water cut-out switch to a minimum.
If the issue persists, the municipal water supply is
insufficient; check the pressure gauge reading when
the pumps start up, or consult the municipal water
supplier.
Consult the switchgear instructions.
Check the contacts, replace the sensor in question if
necessary.
Check all connections to the switchgear terminal
switch.
Check the activation and deactivation of the flow
switch. Replace if necessary.
Replace the valves.
Open the pressure sensor gate valve.
Ensure that the flow switch is installed in the
direction of fluid flow.
Subject to change without prior notice.
WILO SE 01/2020