Perfect Aire 4PACH12000 handleiding
Handleiding
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10
IMPORTANT SAFETY INSTRUCTION
components, the casing is not altered in such
a way that the level of protection is aected.
This shall include damage to cables, excessive
number of connections, terminals not made to
original specication, damage to seals, incorrect
tting of glands, etc.
Ensure that apparatus is mounted securely.
• Ensure that seals or sealing materials have not
degraded such that they no longer serve the
purpose of preventing the ingress of ammable
atmospheres. Replacement parts should
be in accordance with the manufacturer’s
specications.
NOTE: The use of silicon sealant may
inhibit the eectiveness of some
types of leak detection equipment.
Intrinsically safe components do not
have to be isolated prior to working
on them.
REPAIR TO INTRINSICALLY SAFE
COMPONENTS
• Do not apply any permanent inductive or
capacitance loads to the circuit without ensuring
that this will not exceed the permissible voltage
and current permitted for the equipment in use.
Intrinsically safe components are the only types
that can be worked on while live in the presence
of a ammable atmosphere. The test apparatus
shall be at the correct rating.
• Replace components only with parts specied
by the manufacturer. Other parts may result in
the ignition of refrigerant in the atmosphere from
a leak.
CABLING
• Check that cabling will not be subject to wear,
corrosion, excessive pressure, vibration, sharp
edges or any other adverse environmental
eects. The check shall also take into account
the eects of aging or continual vibration from
sources such as compressors or fans.
DETECTION OF FLAMMABLE
REFRIGERANTS
• Under no circumstances, should potential
sources of ignition be used in the searching for
or detection of refrigerant leaks. A halide torch
(or any other detector using a naked ame)
should not be used.
LEAK DETECTION METHODS
• The following leak detection methods are
deemed acceptable for systems containing
ammable refrigerants. Electronic leak detectors
shall be used to detect ammable refrigerants,
but the sensitivity may not be adequate, or
may need re-calibration. (Detection equipment
should 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 should 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 conrmed.
• Leak detection uids 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 pipework.
• If a leak is suspected, all naked ames should be
removed/ extinguished. If a leakage of refrigerant is
found which requires brazing, all of the refrigerant
should be recovered from the system, or isolated
(by means of shut o valves) in a part of the system
remote from the leak. Oxygen free nitrogen (OFN)
should then be purged through the system both
before and during the brazing process.
REMOVAL AND EVACUATION
• When breaking into the refrigerant circuit to make
repairs or for any other purpose conventional
procedures shall be used. However, it is important
that best practice is followed since ammability
is a consideration. Opening of the refrigeration
systems should not be done by brazing.
• The following procedure shall be adhered to:
• Remove refrigerant
• Purge the circuit with inert gas
• Evacuate
• Purge again with inert gas
WARNING
(For using R290/R32 refrigerant only)
(Continued)
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Productinformatie
| Merk | Perfect Aire |
| Model | 4PACH12000 |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 4367 MB |
