25
12.10 Built-in protection
The motor incorporates an unit which protects the
motor in various situations.
In case of overload, the built-in overload protection
will stop the pump for 5 minutes. After that period,
the pump is ready to restart if the start conditions are
fulfilled.
To reset the pump, switch off the power supply for
1 minute.
The motor is protected in case of:
•
Dry running.
•
Voltage surges (up to 6000 V) in areas with high
lightning intensity. External lightning protection is
required.
•
Overvoltage.
•
Undervoltage.
•
Overload.
•
Overtemperature.
12.11 Contaminated pumps
If Grundfos is requested to service the pump,
Grundfos must be contacted with details about the
pumped liquid, etc.
before
the pump is returned for
service. Otherwise Grundfos can refuse to accept
the pump for service.
Possible costs of returning the pump are paid by the
customer.
However, any application for service (no matter to
whom it may be made) must include details about
the pumped liquid if the pump has been used for
liquids which are injurious to health or toxic.
Before a pump is returned, it must be cleaned in the
best possible way.
Operating
capacitor
Operating capacitor, Pt1000 sensor,
bracket and O-rings for cover
All single-phase
pumps
96984142
Service kit
Contents
Pump type
Material
Product number
Caution
A possible replacement of the cable must be carried out by Grundfos or an authorised service
workshop.
Warning
If a pump has been used for a liquid
which is injurious to health or toxic, the
pump will be classified as
contaminated.
