Nibe S2125 Sicherheitsinformationen Seite 23

WORKING METHOD
The work must be carried out in a controlled
way to minimise the risk of contact with
combustible gas or liquid during the work.
GENERAL FOR THE WORKING RANGE
All maintenance staff and those who work
in close proximity to the product must be
instructed which type of work is to be car-
ried out. Avoid carrying out work in en-
closed spaces. The area surrounding the
worksite must be cordoned off. Ensure that
the area is made safe by removing combust-
ible material.
CHECK FOR THE PRESENCE OF
REFRIGERANT
Check whether there is refrigerant in the
area using a suitable refrigerant detector
prior to and during work, to notify the ser-
vice technician whether there is a possible
flammable atmosphere or not. Ensure that
the refrigerant detector is suitable for
combustible refrigerant, i.e. does not gener-
ate sparks or cause ignition in any other
way.
PRESENCE OF FIRE EXTINGUISHERS
If hot work is carried out on the heat pump,
a powder or carbon dioxide fire extinguisher
must be to hand.
ABSENCE OF IGNITION SOURCES
Pipes connected to the unit must not con-
tain potential sources of ignition.
Those who carry out work with refrigerant
system connections, including exposing
pipes that contain or have contained com-
bustible refrigerant, may not use potential
ignition sources in such a way that that can
lead to risks of fire or explosions.
All potential ignition sources, including ci-
garette smoking, should be kept at a safe
distance from the service work area where
combustible refrigerant can leak out. Before
carrying out work, the area surrounding the
equipment must be checked to ensure that
there are no ignition risks. "No smoking"
signs must be displayed.
S2125 | GB
VENTILATED AREA
Ensure that the work is carried out outdoors
or that the work area is ventilated before
the system is opened and before any hot
work is carried out. The area must be vent-
ilated whilst the work is being carried out.
There must be ventilation around any refri-
gerant that comes out, which should be
routed outdoors.
CHECKING COOLING EQUIPMENT
If electrical components are replaced, the
replacement parts must be fit for purpose
and have the correct technical specifica-
tions. Always follow the manufacturer's
guidelines regarding maintenance and ser-
vicing. Contact the manufacturer's technic-
al department in the event of any doubts.
The following checks must be carried out
for installations that use combustible refri-
gerants.
The actual filling quantity is appropriate
•
for the magnitude of the space where the
parts containing refrigerant are installed.
Ventilation equipment and outlet work
•
correctly and without obstructions.
If an indirect refrigerant circuit is used,
•
check whether the secondary circuit
contains refrigerant.
All markings of equipment are visible and
•
clear. Markings, signs and similar that are
not clear must be replaced.
Refrigerant pipes and components are
•
positioned in such a way that it is not
likely that they be subjected to sub-
stances that can corrode components
containing refrigerant, if these compon-
ents are not made of material that is res-
istant against corrosion, or not appropri-
ately protected against such corrosion.
CHECKING ELECTRICAL EQUIPMENT
Repair and maintenance of electrical com-
ponents must include initial safety checks
and procedures for component inspection.
In the event of a fault, which can cause a
safety risk, do not supply any power to the
circuit until the fault has been rectified. If
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