Airwell AQL 130 — guidelines for Safe Dismantling and Disposal of Refrigeration Units [62/63]
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Airwell AQL 130 — guidelines for Safe Dismantling and Disposal of Refrigeration Units [62/63]

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Airwell AQL 130 [62/63] General information
Page 61
English
Dismantling, Demolition and Scrapping
11 DISMANTLING, DEMOLITION
AND SCRAPPING
While discharging the refrigerating
circuits, never release the refriger-
ant into the atmosphere. Use prop-
er recovery equipment for the dis-
charge.
Never dispose of the compressor
oil in the atmosphere since it con-
tains dissolved refrigerant.
Contact the competent authority for any
information about disposal.
Unless otherwise specified, the operations de-
scribed here below can be performed by any main-
tenance technician who has been specifically
trained.
11.1 General Information
Open any line which may supply the unit, including
those of control circuits. Make sure that all discon-
nectors are secured in the OFF position. The supply
cables can be also disconnected and disassembled.
Refer to Chapter 4 for the position of connection
points.
Remove all the refrigerant from the refrigerating cir-
cuits of the unit and store it in containers by making
use of a recovery unit. If its features are intact, the
refrigerant can be reused. Contact the competent
authority for any information about disposal. The re-
frigerant may be discharged in the atmosphere un-
der NO circumstance. The oil which may be found
in any refrigerating circuit shall be drained to be
collected in a container and disposed of in compli-
ance with the local standards about the disposal of
exhaust lubricants. Any oil leakage shall be recov-
ered and disposed of in the same way.
Detach the unit exchanger(s) from the external wa-
ter circuits and drain the heat exchanger section(s)
of the plant. If no on/off valve has been installed, it
might be necessary to drain the whole plant.
If a glycol solution or a similar fluid
has been used in the water
circuit(s) or if chemical additives
have been added to the circulating
water, the circulating fluid SHALL
be properly disposed of. A circuit
containing glycol water or a similar
solution may be directly dis-
charged in a sewer system or in
surface water under NO circum-
stance.
After having provided for the drainage, disconnect
and disassemble the pipelines of water networks.
Packaged units can generally be disassembled in
one piece after having been disconnected as
above. For this purpose disassemble the anchor
screws and then lift the unit from its installation site
by using the lifting devices and lifting points
arranged.
Refer to Chapter 4 for the installation of these de-
vices, to Chapter 9 for their weights and to Chapter
3 for their handling.
The units which can not be removed in one piece
after having been disconnected shall be dismantled
on site. Special care shall be paid to the weight of
each component when handling. It is always recom-
mended to dismantle the units in the reverse order
of their installation.
Residual oil, glycol water or
residues of similar solutions may
remain in some parts of the unit.
These residues shall be either re-
covered or disposed of as instruct-
ed above.
During the removal of a component it is very impor-
tant to ensure that the remaining components of the
unit are secured.
Only use the lifting equipment of
adequate capacity.
The components of the unit can be disposed of ac-
cording to the rules in force after having been dis-
assembled.

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Learn essential procedures for safely dismantling refrigeration units, including proper refrigerant recovery and oil disposal. Ensure compliance with local regulations for safe practices.