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- The installation of pipe-work shall be kept to a minimum.
- Pipe-work shall be protected from physical damage and shall not be installed in an unventilated space, if that
space is smaller than Amin (2m
2
).
- Compliance with national gas regulations shall be observed.
- Mechanical connections shall be accessible for maintenance purposes.
- The minimum floor area of the room: 2m
2
.
- The maximum refrigerant charge amount: 1.7 kg.
- Information for handling, installation, cleaning, servicing and disposal of refrigerant.
- WARNING: Keep any required ventilation openings clear of obstruction.
- Notice: Servicing shall be performed only as recommended by the manufacturer.
Unventilated Areas
- WARNING: The appliance shall be stored in a well-ventilated area where the room size corresponds to the room
area as specified.
- WARNING: The appliance shall be stored in a room without continuously operating open flames (e.g.an operating
gas appliance) and ignition sources (e.g.an operating electric heater).
Qualification of Workers
- Specific information about the required qualification of the working personnel for maintenance, service and repair
operations.
- WARNING: Every working procedure that affects safety means shall only be carried out by competent persons
Examples for such working procedures are:
- Breaking into the refrigerating circuit.
- Opening of sealed components
- Opening of ventilated enclosures.
Information on Servicing
- Prior to beginning work on systems, safety checks are necessary to ensure that the risk of ignition is minimized.
- Work shall be undertaken under a controlled procedure so as to minimized the risk of flammable gas or vapor
being present while the work is being performed.
- Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the
conditions within the area have been made safe by control of flammable material.
Checking for Presence of Refrigerant
- The area shall be checked with an appropriate refrigerant detector prior to and during work. The leak detection
equipment should be suitable for use with all applicable refrigerants, i.e.non-sparking, adequately sealed or
intrinsically safe.
Presence of Fire Extinguisher
- If any hot work is to be conducted, appropriate fire extinguishing equipment shall be available to hand. Have a dry
powder or CO
2
fire extinguisher adjacent to the charging area.
No Ignition Sources
- All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of
installation, repairing, removing and disposal. 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.
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 disperseany released refrigerant and preferably expel it externally into the atmosphere.
