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Residual risks
When the metallic mass of the unit is under voltage and is
not correctly connected to the earthing system it may be
as source of electric shock and electrocution.
Always pay particular attention to the implementation of
the earthing system connections.
Contact with parts under voltage accessible inside the
unit after the removal of the guards can cause electric
shocks, burns and electrocution.
Open and padlock the general isolator prior to removing
the guards and signal work in progress with the appro-
priate sign.
Contact with parts that could be under voltage due to the
start up of the unit may cause electric shocks, burns and
electrocution.
When voltage is necessary for the circuit open the isolator
on the attachment line of the unit itself, padlock it and
display the appropriate warning sign.
13.4.3 Moving parts
Contact with the transmissions or with the fan aspiration
can cause injuries.
Remember that:
• before accessing inside the unit, open the disconnector
switch on the unit connection line, padlock it and display
the appropriate warning sign
• contact with fans can cause injury.
• before removing the protection grilles or fans, open the
disconnector switch on the unit connection line, padlock
it and display the appropriate warning sign.
13.5 Refrigerant
The intervention of the safety valve and the consequent
expulsion of the gas refrigerant may cause injuries and
intoxication.
Always wear suitable clothing including protective gloves
and eyeglasses for operations inside the danger zone.
Should the refrigerant leak please refer to the refrigerant
“Safety sheet”.
Contact between open flames or heat sources with the re-
frigerant or the heating of the gas circuit under pressure
(e.g. during welding operations) may cause explosions or
fires.
Do not place any heat source inside the danger zone.
The maintenance or repair interventions which include
welding must be carried out with the system o.
13.6 Hydraulic parts
Defects in tubing, the attachments or the removal parts
may cause a leak or water projection with the consequent
damages to people, things or shortcircuit the unit.
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