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4) Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant
detector prior to and during work, to ensure the technician
is aware of potentially flammable atmospheres. Ensure
that the leak detection equipment being used is suitable
for use with flammable refrigerants, i.e. non-sparking,
adequately sealed or intrinsically safe.
5) Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration
equipment or any associated parts, appropriate fire
extinguishing equipment shall be available to hand. Have a
dry powder or CO2 fire extinguisher adjacent to the
charging area.
6) No ignition sources
No person carrying out work in relation to a refrigeration
system which involves exposing any pipe work that
contains or has contained flammable refrigerant shall use
any sources of ignition in such a manner that it may lead to
the risk of fire or explosion. All possible ignition sources,
including cigarette smoking, should be kept suciently far
away from the site of installation, repairing, removing and
disposal, during which flammable refrigerant can possibly
be released to the surrounding space. Prior to work taking
place, the area around the equipment is to be surveyed to
make sure that there are no flammable hazards or ignition
risks. No Smoking signs shall be displayed.
7) Ventilated area
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..
8) Checks to the refrigeration equipment
Where electrical components are being changed, they shall
be fit for the purpose and to the correct specification. At all
times the manufacturer's maintenance and service
guidelines shall be followed. If in doubt consult the
manufacturer's technical department for assistance. The
following checks shall be applied to installations using
flammable refrigerants:
The charge size is in accordance with the room size within
which the refrigerant containing parts are installed;
The ventilation machinery and outlets are operating
adequately and are not obstructed;
If an indirect refrigerating circuit is being used, the
secondary circuit shall be checked for the presence of
refrigerant; Marking to the equipment continues to be
visible and legible. Markings and signs that are illegible
shall be corrected;
Refrigeration pipe or components are installed in a position
where they are unlikely to be exposed to any substance
which may corrode refrigerant containing components,
unless the components are constructed of materials which
are inherently resistant to being corroded or are suitably
protected against being so corroded.
9) Checks to electrical devices
Repair and maintenance to electrical components shall
include initial safety checks and component inspection
procedures. If a fault exists that could compromise safety,
then no electrical supply shall be connected to the circuit
until it is satisfactorily dealt with. If the fault cannot be
corrected immediately but it is necessary to continue
operation, an adequate temporary solution shall be used.
This shall be reported to the owner of the equipment so all
parties are advised.
Initial safety checks shall include:
That capacitors are discharged: this shall be done in a safe
manner to avoid possibility of sparking;
That there no live electrical components and wiring are
exposed while charging, recovering or purging the system;
That there is continuity of earth bonding.
1312
GB
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Productinformatie
| Merk | Point |
| Model | POAC8212 |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 9076 MB |
