Checking The Electricity Supply; Environment; Disposal - Grundfos SQ Installation And Operating Instructions Manual

10. Checking the electricity supply

Before starting any work on the pump/motor, make sure that the electricity supply has been
switched off and that it cannot be accidentally switched on.
1. Supply voltage
L
N
PE
2. Current consumption

11. Environment

During handling, operation, storage and transport, all
environment regulations dealing with the handling of
hazardous materials must be observed.
When the pump is taken out of
operation, it must be ensured that no
hazardous material is left in the pump/
motor and the riser pipe, which can be
injurious to persons and the
environment.
In case of doubt, please contact Grundfos or the
local authorities.

12. Disposal

Disposal of this product or parts of it must be carried
out according to the following guidelines:
1. Use the local public or private waste collection
service.
2. In case such waste collection service does not
exist or cannot handle the materials used in the
product, please deliver the product or any
hazardous materials from it to your nearest
Grundfos company or service workshop.
Measure the voltage (RMS)
between phase and neutral.
Connect the voltmeter to the
terminals at the connection.
Measure the current (RMS)
while the pump is operating at
a constant discharge head (if
possible, at the capacity where
the motor is most heavily
loaded).
For maximum current, see
nameplate.
The voltage should, when the motor is
loaded, be within the range specified in
section 4. Electrical connection.
Large variations in supply voltage indicate
poor electricity supply, and the pump should
be stopped until the defect has been
remedied.
If the current exceeds the full load current,
there are the following possible faults:
• Poor connection in leads, possibly in the
cable joint.
• Too low supply voltage, see item 1.
Subject to alterations.
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