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19
19 Disposal
19.1 Disconnecting the unit
The operations for disconnecting the unit must be carried out by
a qualified technician.Before disconnecting the unit, the following
must be recovered, if present:
The refrigerant gas: the gas must be extracted using suction
devices operating in a closed circuit to ensure there are no
gas leaks into the environment.
The glycol must not be dispersed in the environment when
removed, but stored in suitable containers.
NOTE
The disposal of the gas refrigerant, the glycoled water where present, and
the recovery of any other material or substance must be carried out by
qualified staff in compliance with the specific regulations in force to
prevent injury/damage to persons/objects as well as the pollution of the
surrounding area.
The unit can be stored in the open while awaiting demolition as
long as bad weather and temperature changes do not cause
damaging effectsto the environment and the electric, cooling and
hydraulic circuits are integral and closed.
19.2 Dismantling and disposal
In the dismantling stage, the fan, the motor and the coil, if opera-
tional, can be recovered by specialised recycling centres.
NOTE
For dismantling/disposal, all the materials must be taken to the
authorised facilities in compliance with the national regulations in force
on this subject. For further information on disposal, contact the head
office.
EN-20
20 Improper use
The appliance is designed and constructed to guarantee the
maximum safety in its immediate vicinity (IP24), as well as to re-
sist atmospheric agents. The fans are protected from involuntary
intrusion by means of protective grids.Accidental opening of the
electric control board with the machine in operation is prevented
by the door-blocking isolator switch. Avoid laying tools or heavy
objects directly on the lateral heat exchange coils, in order not to
damage the louvers.
NOTE
Do not insert or drop objects through the fan motor grids. Do not rest on
the "Sharp surfaces" of the heat exchange coils.
20.1 Important safety information
The machine must not exceed the pressure and temperature lim-
its indicated in the table shown in the "Functioning limits" para-
graph in the technical manual. Correct operation of the unit is not
guaranteed following a fire; before restarting the machine, have
it checked by an authorised service centre.The machine is
equipped with safety valves which, in the event of excessive
pressure, can discharge the high temperature gas into the at-
mosphere.Wind, earthquakes, and other natural phenomena of
exceptional intensity have not been considered.been consid-
ered. If the unit is used in an aggressive atmosphere or with ag-
gressive water, please consult the head office.
Following extraordinary maintenance workon the
cooling circuit involving the replacement of
components, before restarting the machine, carry
out the following operations:
Pay maximum attention in restoring the load of refrigerant in-
dicated on the machine plate (inside the electric control
board).
Open all the cocks present in the cooling circuit.
Connect the electrical power supply and earth correctly.
Check the hydraulic connections.
Check that the water pump is working correctly.
Clean the water filters.
Check that the condenser coils are not soiled or clogged.
Verify the correct rotation of the fan unit.
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