Bimar DEU315 Folleto De Instrucciones página 45

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in the presence of a flammable atmosphere. The test apparatus
shall be at the correct rating. Replace components only with parts
specified 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 effects. The check shall also take
into account the effects of aging or continual vibration from
sources such as compressors or fans.
Detection of flammable refrigerants. Under no circumstances
shall 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 flame) shall not be used.
Leak detection methods. 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 if 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 leak
is suspected, all naked flames shall be removed/ extinguished. If
a leakage of refrigerant is found which requires brazing, all of
the refrigerant shall be recovered from the system, or isolated

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