M01W45H6-06
WSAT-SC
75C-180F
- RESIDUAL RISKS -
8
- RESIDUAL RISKS -
GENERAL
This section lists some of the more common situations which, being beyond the control of the manufacturer, could be a
source of risk to persons or property.
DEFINITION OF DANGER AREA
- External danger zone, identified by a precise area around the unit (2 metres from the external diameter) and its vertical
projection on the ground in the case of hanging unit.
- Internal danger zone, identified by the area that can be entered only after having intentionally removed the protecting
panels or parts of these.
HANDLING
If handling operations are undertaken without adopting all the necessary safety procedures and exercising due care, the
unit can fall or topple, causing damage — possibly extremely serious — to persons and/or property, and to the unit itself.
Ensure the unit is handled and manoeuvred as directed on the packing and in the present manual, and in accordance
with local regulations. In the event of refrigerant gas escaping, refer to the “Safety datasheet” for the particular
refrigerant.
INSTALLATION
- Incorrect installation of the unit can result in water leaks, accumulation of condensate, escape of refrigerant, electric
shocks, fire, as well as irregular operation or damage to the unit itself. Make certain that only a qualified technician
carries out the installation, also that the directions contained in this manual are followed and local statutory regulations
observed.
- In the event of the unit being installed in a site where there is even the slightest risk of inflammable gas escapes and
consequently the possibility of such gases accumulating in area around the unit, the risk of explosion and fire cannot be
discounted. Take every care and precaution when selecting the installation site.
- Installation on a structure not able to bear the weight and/or afford a secure anchorage of the equipment may cause the
unit to fall and/or topple, resulting in damage to persons or property, or to the unit itself. Make certain that every care and
precaution is taken when positioning and securing the unit.
- If the unit is easily accessible to children, unauthorized persons or animals, this is a situation that can give rise
accidents and injuries, perhaps serious. Install the unit in a place where access is allowed only to authorized persons, or
install barriers or guards preventing unauthorized entry.
GENERAL RISKS
- A smell of burning, smoke or other indications of serious irregularity could signal the onset of situations liable to cause
damage to persons or property or to the unit itself. Isolate the unit from the electrical power supply (red-and-yellow
switch), and contact an authorized service centre so that the source of the problem can be identified and remedied.
- Accidental contact with heat exchange coils, compressors, pressure pipelines or other components can result in
wounding or burns, or both. Always wear suitable clothing, including protective gloves, when working in the danger area.
- Maintenance or repairs carried out by unskilled operatives can result in harm or damage to persons and property, or to
the unit itself. Always contact an authorized service centre.
- Failure to close the panels of the unit, or to check that all the fixing screws of the panels are properly tightened, can
result in harm or damage to persons or property, or to the unit itself. Verify periodically that all panels are closed and
made properly secure.
- In the event of fire, the temperature of the refrigerant can rise to the point that pressure will exceed safety levels and
perhaps cause fluid to be projected. It may also happen that parts of the circuit isolated by closed valves will explode. Do
not stand near safety valves, and never leave the valves of the refrigerant circuit closed.
ELECTRICAL SYSTEM
- If the power line connecting the unit to the a.c. supply is incomplete, or if the connection is made with cables of incorrect
cross section and/or with insufficiently rated protective devices, this can result in electric shock, toxicity hazard, damage
to the unit or fire. All work on the electrical system should be carried out referring to the wiring diagram and to the
directions given in this manual, and the system itself must be dedicated.
- Failure to secure the cover enclosing electrical components can lead to the infiltration of dust and water, ultimately
causing electric shocks, damage to the unit, or fire. Always fasten the cover securely to the unit.
- If live metal parts of the unit are not connected properly to the earth system, they can cause electric shock or even
death by electrocution. Make absolutely certain that the connection to the earth system is made in accordance with
correct practice.
- Contact with live parts rendered accessible internally of the unit when the guards are removed can result in electric
shock, burns or death by electrocution. Before exposing these parts, make certain the isolating switch on the power line
to the unit is set to the OFF position and padlocked, and post a warning sign.
- Contact with parts that could become live when the unit is started up can result in electric shock, burns or death by
electrocution. When there is no need for circuits to be powered up, set the isolating switch on the power line to the OFF
position, padlock it and post a warning sign.
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