RUSTA 9000 BTU Gebrauchsanweisung Seite 26

HH.2.3 Information about POTENTIAL IGNITION SOURCES, especially those that are
not obvious, such as lighters, light switches, vacuum cleaners, electric heaters.
HH.2.4 Information about the different safety concepts:
Unventilated – Safety of the appliance does not depend on ventilation of the housing.
Switching off the appliance or opening of the housing has no significant effect on
the safety. Nevertheless, it is possible that leaking refrigerant may accumulate inside
the enclosure and flammable atmosphere will be released when the enclosure
is opened.
Ventilated enclosure – Safety of the appliance depends on ventilation of the housing.
Switching off the appliance or opening of the enclosure has a significant effect on
the safety. Care should be taken to ensure sufficient ventilation before.
Ventilated room – Safety of the appliance depends on the ventilation of the room.
Switching off the appliance or opening of the housing has no significant effect on the
safety. The ventilation of the room shall not be switched off during repair procedures.
HH.2.5 Information about refrigerant detectors:
• Principle of function, including influences on the operation.
• Procedures, how to repair, check or replace a refrigerant detector or parts of it
in a safe way.
• Procedures, how to disable a refrigerant detector in case of repair work on
the refrigerant carrying parts.
HH.2.6 Information about the concept of sealed components and sealed enclosures
according to IEC 60079-15:2010.
a) Commissioning
• Ensure that the floor area is sufficient for the REFRIGERANT CHARGE or that
the ventilation duct is assembled in a correct manner.
• Connect the pipes and carry out a leak test before charging with refrigerant.
• Check safety equipment before putting into service.
b) Maintenance
• Portable equipment shall be repaired outside or in a workshop specially equipped
for servicing units with FLAMMABLE REFRIGERANTS.
• Ensure sufficient ventilation at the repair place.
• Be aware that malfunction of the equipment may be caused by refrigerant loss
and a refrigerant leak is possible.
• Discharge capacitors in a way that won't cause any spark. The standard procedure
to short circuit the capacitor terminals usually creates sparks.
• Reassemble sealed enclosures accurately. If seals are worn, replace them.
• Check safety equipment before putting into service.
c) Repair
• Portable equipment shall be repaired outside or in a workshop specially equipped
for servicing units with FLAMMABLE REFRIGERANTS.
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