Airwell AWHM-TDF 190 Manuel D'installation, D'utilisation Et D'entretien page 65

2 - RESIDUAL RISKS / DISPOSAL
refrigerant could reach values that
increase the pressure to beyond the
safety valve with the consequent possible
projection of the refrigerant itself or
explosion of the circuit parts that remain
isolated by the closure of the tap. Do not
remain in the proximity of the safety valve
and never leave the refrigerating system
taps closed.
Electric parts
An incomplete attachment line to the
electric network or with incorrectly sized
cables and/or unsuitable protective
devices can cause electric shocks,
intoxication, damage to the unit or fires.
Carry out all of the work on the electric
system referring to the electric layout and
the present manual ensuring the use of a
system thereto dedicated. An incorrect
fixing of the electric components cover
may favour the entry of dust, water etc
inside and may consequently can electric
shocks, damage to the unit or fires.
Always fix the unit cover properly. 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 appropriate
shield.
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 shield.
Moving parts
Contact with the transmissions or with
the fan aspiration can cause injuries.
Prior to entering the inside of the unit
open the isolater situated on the
connection line of the unit itself, padlock
and display the suitable sign.
Contact with the fans can cause incurie.
to removing the protective grill or the
fans, open the isolator on the attachment
line of the unit itself, padlock it and
display the appropriate warning sign.
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 gas refrigerant leak please
refer to the refrigerant "Safety sheet".
Contact between open flames or heat
sources with the refrigerant 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 off.
Hydraulic parts
Defects in ducting , the attachments or
the cut-off parts may cause a leak or
water projection with the consequent
damages to people, things or shortcircuit
the unit.
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