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12
SAFETY INSTRUCTIONS
ENGLISH
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 (by means of shut off valves) in a part of the system remote from
the leak. Removal of refrigerant shall be according to removal and evacuation procedure.
This unit is equipped with a refrigerant leak detector for safety. To be effective, the unit must be
electrically powered at all times after installation, other than when servicing.
This unit is equipped with electrically powered safety measures. To be effective, the unit must
be electrically powered at all times after installation, other than when servicing.
Ventilated area (For R32)
Ensure that the area is in the open or that it is adequately ventilated before breaking into the
system or conducting any hot work. A degree of ventilation shall continue during the period that
the work is carried out. The ventilation should safely disperse any released refrigerant and
preferably expel it externally into the atmosphere.
Detection of flammable refrigerants (For R32)
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.
Qualification of workers (For R32)
The manual shall contain specific information about the required qualification of the working
personnel for maintenance, service and repair operations. Every working procedure that affects
safety means shall only be carried out by competent persons according to Annex HH.
Examples for such working procedures are:
• Breaking into the refrigerating circuit;
• Opening of sealed components;
• Opening of ventilated enclosures.
Checks to the area (For R32)
Prior to beginning work on systems containing flammable refrigerants, safety checks are
necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system,
the following precautions shall be complied with prior to conducting work on the system.
Work procedure (For R32)
Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable
gas or vapour being present while the work is being performed.
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