Grundfos CRE Safety Instructions And Other Important Information page 15

11.1.1 Cleaning the product
WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply to the
product including the power supply for
the signal relays. Make sure that the
power supply cannot be switched on
accidentally.
‐
Check that the terminal box cover is
intact before spraying water or
chemicals on the product.
‐
Cleaning must be done with non-
aggressive materials to avoid damage
to surfaces and labels.
‐
Make sure that the air inlets are kept
clean and free of residuals.
Do not expose the product to high-
pressure water jets.
To clean the motor, follow the procedure below:
1. Let the motor cool down first to avoid
condensation.
2. Spray it with cold water, and use only non-
aggressive cleaning materials.
12. Taking the product out of operation
WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply and make
sure that it cannot be accidentally
switched on. The power supply must
be switched off for at least five minutes
before you start working on the
product.
WARNING
Back injury
Death or serious personal injury
‐
Use lifting equipment and follow local
regulations when lifting the product.
The lifting eyes on the motor can be used
for lifting the pump as well.
For lifting instructions, see the related
installation and operating instructions for
the pump.
13. Fault finding
WARNING
Electric shock
Death or serious personal injury
‐
Switch off the power supply before you
start any work on the product.
‐
Make sure that the power supply
cannot be switched on accidentally.
For information on fault finding,
see the related installation and operating
instructions for the pump.
14.1.1 Installation altitude
The installation altitude is the height above sea level
of the installation site.
Products installed up to 1000 m above sea level can
be loaded 100 %.
The motors can be installed up to 3500 m above sea
level.
Products installed more than 1000 m
above sea level must not be fully loaded
due to the low density and consequent low
cooling effect of the air.
The motor output power (P2) in relation to the altitude
above sea level is shown in the graph.
P2[%]
100
90
80
70
60
0 500 1000 1500 2000 2500 3000 3500
Pos. Description
P2 Motor output power [%]
X Altitude [m]
14.1.3.1 Ambient temperature during storage and
transportation
Description
Minimum
Maximum
X
Temperature
-30 °C
60 °C
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