● For leak detection, the use of detergents containing chlorine shall be avoided.
● If a leak is suspected, all naked flames shall be removed/extinguished.
● Call the service agent immediately and keep faraway from the product.
● If disposal or decommissioning is needed, please contact the service agent or
authorized personal to do it. Do not dispose and decommission the product yourself.
● The appliance shall be installed in accordance with national wiring regulations.
● The maximum refrigerant charge amount:90g for model FDP20-2026R5;160g for
model FDP26- 2026R5;
● An unventilated area where the appliance using flammable refrigerants is installed
shall be so constructed that should any refrigerant leak, it will not stagnate so as to
create a fire or explosion hazard.
● The appliance shall be stored so as to prevent mechanical damage from occurring.
● Check that cabling will not be subject to wear, corrosion, excessive pressure,
vibration, sharp edges or any other adverse environmental effects. The check shall
also take into account the effects of aging or continual vibration from sources such as
compressors or fans.
● The following leak detection methods are deemed acceptable for systems containing
flammable refrigerants.
● Electronic leak detectors shall be used to detect flammable refrigerants, but the
sensitivity may not be adequate, or may need re-calibration. (Detection equipment
shall be calibrated in a refrigerant-free area.)Ensure that the detector is not a
potential source of ignition and is suitable for the refrigerant used.
Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and
shall be calibrated to the refrigerant employed and the appropriate percentage of gas
(25 % maximum) is confirmed.
Leak detection fluids are suitable for use with most refrigerants but the use of
detergents containing chlorine shall be avoided as the chlorine may react with the
refrigerant and corrode the copper pipe-work.
● If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall
be recovered from the system, or isolated (by means of shut off valves) in a part of the
system remote from the leak.
● Oxygen free nitrogen (OFN) shall then be purged through the system both before and
during the brazing process.
● Before carrying out this procedure, it is essential that the technician is completely
familiar with the equipment and all its detail. It is recommended good practice that all
refrigerants are recovered safely. Prior to the task being carried out, an oil and
refrigerant sample shall be taken in case analysis is required prior to re-use of
reclaimed refrigerant. It is essential that electrical power is available before the task
is commenced.
● Become familiar with the equipment and its operation.
● Isolate system electrically.
● Before attempting the procedure ensure that:
– Mechanical handling equipment is available, if required, for handling refrigerant
cylinders.
– All personal protective equipment is available and being used correctly.
– The recovery process is supervised at all times by a competent person.
– Recovery equipment and cylinders conform to the appropriate standards.
● Pump down refrigerant system, if possible.
● If a vacuum is not possible, make a manifold so that refrigerant can be removed from
various parts of the system.
● Make sure that cylinder is situated on the scales before recovery takes place.
● Start the recovery machine and operate in accordance with manufacturer's
instructions.
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