EN
77
from the original version,
damaged seals and
grommets etc.
• Check that electrical
components are rmly in
place and correctly
connected.
• Check that seals and sealing
compounds do not show
signs of fatigue or other
damage, or otherwise fail to
seal a ammable
atmosphere. Replacement
parts must correspond to the
specications of the
manufacturer.
NOTE:
Silicone sealing compound can
reduce the sensitivity of some
types of leakage detection
systems. Intrinsically safe
components do not need to be
insulated before working on
them.
Repair of intrinsically
safe components
Do not connect inductive or
capacitive loads to the circuit
without rst checking that this
will not exceed the maximum
voltage or current to the
dehumidier. Intrinsically
safe components are the only
components on which work can
be carried out in a ammable
atmosphere when supplied
with voltage. Check that all
the testing and measuring
equipment has the right
measuring range and correct
specications. Only use spare
parts recommended by the
manufacturer. The use of other
spare parts can result in the
risk of ignition of any leaking
refrigerant.
Wiring
Check that no cables have been
subjected to wear, corrosion,
pinching, vibration, sharp
edges or other damage. Take
into consideration other long-
term eects of normal material
fatigue or continuous vibration
caused by compressors or fans.
Leakage detection – ammable
refrigerant
Potential sources of ignition
must under no circumstances
be used to detect leakage in
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