Nimbus Compact M NET R32 Installation Manual UK

Commissioning
6. Commissioning
6.1 Checking for electrical dispersions and gas
leakages
6.1.1 Electrical safety checks
Upon completing the installation, check that all the power cables
have been installed in conformity to the relevant national
and local regulations and according to the instructions contained
in the installation manual.
PRIOR TO THE OPERATIONAL TEST
Check the integrity of the earthing circuit.
Measure the earth resistance with a visual inspection and with
a specific tester. The earth resistance must be below 0.1 Ω.
For TT system the earth resistance must be below 15Ω. Please
ensure that differential switch is compliant with that ohmic value
of earth impedance.
DURING THE OPERATIONAL TEST
Check for electrical dispersions.
During the functional test, carry out a complete electrical
check, e.g. with the help of a multimeter, in order to identify
any electrical dispersions.
If an electrical dispersion is detected, switch off the unit immediately
and contact a qualified electrician to identify and solve
the cause of the problem.
a
All electrical connections must be made by an
authorised electrician in conformity to the national
and local electrical standards.
6.2 Preliminary checks
OUTDOOR UNIT
– The unit must be positioned on a sturdy and perfectly
horizontal base, in a place that is easily accessible for
subsequent maintenance operations.
– If there are strong draughts, mount a protective screen
at a suitable distance.
– There must not be any obstacle hindering the flow of
air.
– The supporting structure must be able to withstand the
weight of the outdoor unit.
– If the installation site is subject to frequent snowfalls,
the outdoor unit must be positioned at least 200 mm
above the usual snowfall level.
INDOOR UNIT
– The unit must be positioned in an enclosed space and
in a place easily accessible for subsequent maintenance
operations.
– The unit must be anchored firmly to the floor or wall.
– If the user interface is installed on the appliance, check
that the relative humidity in the installation room does
not exceed the allowed limit.
6.1.2 Check for gas leakages
If a leak detector is used, follow the instructions contained in
the user manual of the device.
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