EN
76
• Check that seals and sealing
compounds do not show
signs of fatigue or other
damage, or otherwise fail to
seal a flammable
atmosphere. Replacement
parts must correspond to the
specifications 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 first checking that this
will not exceed the maximum
voltage or current to the
dehumidifier. Intrinsically
safe components are the only
components on which work can
be carried out in a flammable
atmosphere when supplied
with voltage. Check that all
the testing and measuring
equipment has the right
measuring range and correct
specifications. 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 effects of normal material
fatigue or continuous vibration
caused by compressors or fans.
Leakage detection – flammable
refrigerant
Potential sources of ignition
must under no circumstances
be used to detect leakage in
refrigerant circuits. Do not use
leakage detection equipment
with a naked flame.
Leakage detection
The following leakage detection
methods can be used for
dehumidifiers with flammable
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