Argo MONOSPLIT R32 WIFI Bedienungs- Und Wartungsanleitung Seite 117

If hot work is to be performed on the refrigeration equipment or any associated part, adequate fire fighting
equipment must be available. It is necessary to have a dry powder or CO2 extinguisher adjacent to the charging
area.
g) Ventilated area
Make sure the area is outdoors or is adequately ventilated before breaking into the system or performing any hot
work. Continuous ventilation must be present during the period in which the work is being carried out. Ventilation
should safely disperse the released refrigerant and preferably expel it to the atmosphere.
h) Controls on refrigeration equipment
When replacing electrical components, they must be fit for purpose and with the correct specifications. The
manufacturer's maintenance and service guidelines should always be followed. If in doubt, consult the
manufacturer's technical department for assistance.
i) Repairs on sealed components
During repairs to sealed components, all electrical supplies must be disconnected from the equipment being worked
on before removing the sealed covers, etc.
If it is absolutely necessary to have an electrical power supply to the equipment during maintenance, then a leak
detection device must be placed at the most critical point to warn of a potentially dangerous situation.
Particular attention must be paid to the following to ensure that, by working on the electrical components, the casing
is not altered in such a way as to compromise the level of protection. This includes damage to cables, excessive
number of connections, terminals not made to original specifications, damage to gaskets, incorrect assembly of cable
glands, etc.
• Make sure the appliance is mounted securely.
• Ensure that gaskets or sealing materials are not degraded to the point that they no longer serve the purpose of
preventing the entry of flammable atmospheres. Replacement parts must conform to the manufacturer's
specifications.
NOTE: The use of silicone sealant can inhibit the effectiveness of some types of leak detection equipment. Intrinsically
safe components do not need to be isolated before working on them.
l) Repair of intrinsically safe components
Do not apply permanent inductive or capacitive loads to the circuit without ensuring that it does not exceed the
voltage and current allowed for the equipment in use.
The intrinsically safe components are the only ones that can be worked on in the presence of a flammable
atmosphere. The test equipment must be of the correct evaluation.
Replace components only with parts specified by the manufacturer. Other parts can cause the refrigerant to ignite
in the atmosphere due to a leak.
j) Wiring
Verify that the wiring is not subject to wear, corrosion, excessive pressure, vibration, sharp edges, or other adverse
environmental effects.
The control must also take into account the effects of aging or continuous vibrations from sources such as compressors
or fans.
k) Deactivation
Before carrying out this procedure, it is essential that the technician is fully familiar with the equipment and all its
details. Good practice is recommended that all refrigerants be recovered safely. Before the task is performed, a
sample of the oil and refrigerant must be taken in case an analysis is required before reuse of the recovered
refrigerant. It is essential that electricity is available before the start of the activity.
A. Become familiar with the equipment and its operation.
B. Electrically isolate the system.
C. Before attempting the procedure, make sure that:
• mechanical handling equipment is available, if required, for handling the refrigerant cylinders;
• all personal protective equipment is available and used correctly;
• the recovery process is supervised at all times by a competent person;
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