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Do not install the unit in a place where a flammable gas leaks.
2.2 - CHECKS TO PERFORM BEFORE INSTALLATION
a. Checks at the area
Before starting to work on the systems containing inflammable refrigerants, safety checks are
necessary to reduce the risk of ignition to a minimum.
To repair a refrigeration system, the following precautions must be complied with before working
on the system.
b. Work procedure
The job must be performed according to a controlled procedure in a way to reduce the risk of
the presence of inflammable gas or vapour to a minimum during the performance of the job.
c. General work area
All maintenance personnel and those working in the local area, must be trained regarding the
job performed.
Do not work in tight spaces.
The area around the work area must be isolated.
Guarantee that the conditions inside the area are safe by verifying the inflammable material.
d. Check the presence of refrigerant
The area which must be controlled with a specific coolant detector before, during and after
carrying out the work so as to ensure that the technician is informed about the presence of
potentially flammable atmosphere.
Check the leak detector equipment used is suitable for use with inflammable refrigerants, i.e.
does not cause sparks, is suitably sealed or intrinsically safe.
e. Presence of extinguishers
Whenever work must be performed on the refrigeration system at high temperatures or on
relative components, a suitable fire-prevention system must be prepared.
Position CO2 or dry powder extinguishers in proximity of the loading area.
f. No source of ignition
No-one working in the refrigeration systems and exposed to contact with the piping that contains
or contained inflammable refrigerant, must use sources of ignition in order to prevent the risk
of fire or explosion.
Every possible source of ignition, among which cigarette smoke, must be kept at a due distance
from the place of installation, repair, removal or disposal, where there is a risk of the refrigerant
liquid leaking into the surrounding space.
Before performing the job, the area surrounding the appliance must be controlled in order to
ascertain that there are no inflammable substances or risks of ignition present.
NO SMOKING signs must be displayed.
g. Ventilated area
Make sure that the area is open or suitably ventilated before interacting with the system or
performing any operation at high temperatures.
Ensure constant ventilation during the operations period.
Ventilation must safely disperse all refrigerant released and, if possible, expel it outside into the
atmosphere.
h. Refrigeration system checks
If modified, the electric components must be suitable for the purpose and compliant with the
correct specifications.
Always follow the manufacturer's guide lines relative to maintenance and technical after-sales
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