English (GB)
6
6.5 Outdoor installation
If you install the motor outdoors, provide the motor
with a cover and open the drain holes to avoid
condensation on the electronic components. See
figures 2 and 3.
The cover must be sufficiently large to ensure that
the motor is not exposed to direct sunlight, rain or
snow. Grundfos does not supply covers. We
therefore recommend that you have a cover built for
the specific application. In areas with high humidity,
we recommend that you connect the motor
permanently to the mains supply and activate the
built-in standstill heating function. See section
13.20 "Standstill heating", page 44.
Fig. 2 Examples of covers, not supplied by
Grundfos
6.6 Drain holes
When the motor is installed in moist surroundings or
areas with high humidity, the bottom drain hole must
be open. The enclosure class of the motor will then
be lower. This helps prevent condensation in the
motor as the motor becomes self-venting, and it
allows water and humid air to escape.
The motor has a plugged drain hole on the drive
side. You can turn the flange 90 ° to both sides or
180 °.
Fig. 3 Drain holes
7. Electrical installation
If the power supply cable is damaged, it must be
replaced by the manufacturer, the manufacturer's
service partner or a similarly qualified person.
The user or the installer is responsible for the
installation of correct earthing and protection
according to local regulations. All operations must be
carried out by a qualified electrician.
Carry out the electrical connection according to local
regulations.
Check that the supply voltage and frequency
correspond to the values stated on the nameplate.
When fitting a cover to the motor, observe
the guidelines in section 6.4 Ensuring
motor cooling.
TM05 3496 3512
In order to maintain the UL mark,
additional requirements apply to the
equipment. See page 71.
TM02 9037 1604
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply to the motor
and to the signal relays. Wait at least 5
minutes before you make any
connections in the terminal box. Make
sure that the power supply cannot be
accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
- Check that the supply voltage and
frequency correspond to the values
stated on the nameplate.
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