WDE
8 EN/36B/08.2018 © STULZ SpA – all rights reserved
DANGER
• Works have to be carried out by competent staff only.
• Observance of regulations for accident prevention.
• Stay out of danger when lifting and setting off the unit.
• Secure the unit to avoid the risk of overturning.
• Do not climb on or enter the air conditioner.
• Do not remove protection panels. Safety devices may not be bypassed.
• Respect the corresponding EN and IEC standards for the electric connection of the unit and
observe the conditions of power supply companies.
• Switch off the voltage from the unit when working on it.
ATTENTION
• Observe the national regulations of the country where the unit will be installed.
• The refrigerant circuit contains refrigerant and refrigerating plant oil: observe professional
disposal for maintenance and when setting the unit out of service; read and follow instructions
in chapter "10. Uninstalling and disposal of the unit".
• The refrigerant circuit contains refrigerant and refrigerating plant oil: observe professional
disposal for maintenance and when setting the unit out of service.
• For transport, installation, either ordinary or extraordinary maintenance, operators and main-
tenance people must wear individual protection devices (i.e. gloves, glasses, helmet, shoes),
according to the indications of safety manager and applicable regulations.
• The unit may only be used to cool according to the Stulz specification.
• Before any maintenance operation, read and follow instructions in the corresponding chapter.
INFORMATION
• The manufacturer is not liable for damages caused by either a misuse or unauthorized modifi-
cations of the air conditioner.
• Any special opening tools have to be placed in a visible location nearby the unit.
1.4. Handling refrigerants
According to EN 378, refrigerants are divided in groups, concerning health and safety. Refrigerant
R407C, used in all Wall-Air Displacement units belongs to group L1 (non-flammable, non-toxic).
• Adherence to the regulations by law and guide-lines.
• Execution only by competent staff.
• Responsibility for correct disposal of refrigerant and system parts is incumbent on the operator.
• Refrigerants have a narcotic effect when inhaled in high concentrations.
• The room is to be evacuated immediately if high concentrations of refrigerant suddenly occur. The
room may only be entered again after adequate ventilation.
• If unavoidable work is required in presence of a high concentration of refrigerant, breathing
apparatus must be worn. This does not mean simple filter masks. Comply with breathing
protection data sheet.
• Safety glasses and safety gloves are to be worn.
• Do not eat, drink or smoke at work.
• Liquid refrigerant must not get onto the skin.
• Only use in well ventilated areas.
• Do not inhale refrigerant vapours.
• Warn against intentional misuse.
• Remove refrigerant from the system before performing any welding or brazing works.
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