49
2023_001
10 Service
Warning! Service and repairs on the product mustbe
carried out by qualified personnel.
10.1 Work method
The work must be done in accordance with the established
procedures designed to minimize the risk of flammable gas
or vapor when the work is carried out.
10.2 Work area
● All maintenance personnel and other personnel that
works or are present in the area must be informed of the
type of work that is done.
● Do not work in enclosed areas.
● The area around the workplace must be cordoned o.
● Make sure that there are no flammable materials in the
work area.
10.3 Fire safety check
● Do a safety check before work is done in systems that
contains flammable refrigerant to minimize the risk of
ignition.
● Safety measures should be applied before and when the
product is repaired.
10.4 Refrigerant check
● The work area must have a suitable refrigerant detector
before and in the course of the work to ensure that a
flammable atmosphere is detected immediately.
● Make sure that the refrigerant detector is suitable for
flammable refrigerant – non-sparking, adequately sealed
and intrinsically safe.
10.5 Fire extinguisher
● Suitable fire extinguisher equipment (powder or CO2
extinguisher) must be available if hot work is carried out
on the cooling system or parts of it.
10.6 Sources of heat
● Do not use sources of heat in a way that can result in a
risk of fire and/or explosion when work where conduits
or components that contain, or have contained,
flammable refrigerant are exposed.
● All potential sources of heat, including lit cigarettes, must
be kept at a safe distance from workplaces where
installation, repairs, dismantling, scrapping or other work
can involve the release of flammable refrigerant.
● Do a check before starting the work that the area
around the dehumidifier is free from flammable
material and the risk of ignition.
● Smoking prohibited signs must be put up.
10.7 Ventilation
● Make sure the workplace is well ventilated (or if
possible move the product outdoors) before you open
the system or doing any hot work.
● The ventilation or exhaust system must always operate
while work is done.
● The ventilation or exhaust system must have a
suicient capacity to safely remove any released
refrigerant, preferably to the outdoor air.
10.8 Cooling system
● When replacing electric components the replacement
components must be of the right type and have the right
technical data.
● The manufacturer’s service and maintenance instructions
must always be followed. Contact the manufacturer in the
event of any problems or questions.
● Do the checks that follows on installations that use
flammable refrigerant:
• Check that the amount of refrigerant does not exceed
the permitted amount for the room where the
dehumidifier is installed.
• Check that the ventilation system works and that the
inlets and outlets of the ventilation are not blocked.
• Make sure that there is refrigerant in the secondary
circuit, if an indirect refrigerant circuit is used.
• Make sure that all the markings on the product are
legible. Replace markings that are missed or illegible.
• Check that piping and components that contains
refrigerant are installed in such a way as to minimise
the risk of exposure to corrosive substances, or are
made of corrosion-proof materials, or provided with
adequate corrosion protection.
10.9 Sealed components
● Disconnect the power supply to sealed components
before they are opened. If the work requires the power
to remain on there must be a leakage detection
system at the most critical points to trigger an alarm
immediately if risk situation occurs.
● Be careful when working with electrical components
not to damage the casings and grommets etc. in order
to maintain the enclosure rating.
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