Chapter Two
2 - 6
Installing Froment Load Banks
There are a number of factors that need to be considered before you select a load bank
for a particular installation. Obviously it is important to ensure that the load bank has
suicient electrical capacity to test the supply, but you also need to ensure that it can
operate correctly and safely in the position you have chosen.
Refer to the Appendices for details of the installation requirements.
Location
The first thing to decide when installing a load bank is where the unit is to be located. You
need to consider the following to ensure that the unit can be operated safely:
Environment. The load bank should be located only where the environmental conditions
will not exceed the IP classification of the load bank, bearing in mind the required cable
runs and safety procedures. Note that load banks equipped with a cable entry slot, or a
plate with grommets, have a reduced enclosure classification (terminal box to IP21, control
gear compartment to IP23).
A standard 8000 SERIES load bank can be used in ambient temperature between -10°C and
+50°C, at 90% relative humidity (non condensing), and at altitudes up to 1000m above sea
level.
Loading. The load bank is heavy and must be installed on a level surface that is capable of
supporting its weight (see nameplate).
Space. There must be suicient space to provide access for maintenance to all of the
doors and the protective inlet and outlet grilles.
There must be at least one metre of clear space on the air intake side of the load bank
(the fan side) and clear space above the air outlet. See the appendices for the specific
requirements of individual units.
Airflow requirements. When it is operating an 8000 S
ERIES load bank can require up to
35 m
3
of cooling air per second. As it passes through the unit, the air becomes hot enough
to provide a risk of fire or personal injury.
When installing the unit you need to make sure that there is adequate air available, that it
can be discharged safely, and that there is no risk that the hot air will recirculate to the air
intake of the unit.
Note: If necessary,
a barrier should be
erected around the hot
air outlet to prevent any
possibility of personal
injury.
Sound attenuators
Please contact our sales department for advice if you intend to fit a sound attenuator to
the duct work.
Avoiding hot air re-circulation
Careful consideration should be given to the likely eect of nearby buildings, walls or even
parked vehicles, which could seriously disrupt the free escape of hot air, and result in hot
air re-circulation.
Other nearby air handling plant can also interfere with the airflow to, or from, the load
bank. Equipment should be spaced well apart and positioned so that their airflows tend to
complement each other rather than compete.
When multiple load banks are being used it is important to ensure that the hot air from one
load bank does not exhaust directly or indirectly on to any other load bank.
Load Bank Installation and Setup
2 - 7
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