035-19569-101 (0109)
11-1
GB
11 DE-COMMISSIONING, DISMANTLING AND DISPOSAL
WARNING
Never release refrigerant to the atmosphere
when emptying the refrigerating circuits.
Suitable retrieval equipment must be used.
If reclaimed refrigerant cannot be re-used.
It must be returned to the manufacturer.
WARNING
Never discard used compressor oil, as it
contains refrigerant in solution. Return
used oil to the oil manufacturer.
Unless otherwise indicated the operations described
below can be performed by any properly trained
maintenance technician.
11.1 General
Isolate all sources of electrical supply to the unit
including any control system supplies switched by the
unit. Ensure that all points of isolation are secured in
the "OFF" position. The supply cables may then be
disconnected and removed. For connection points refer
to Section 4.
Remove all refrigerant from the unit into a suitable
container using a refrigerant reclaim or recovery unit.
This refrigerant may then be re-used, if appropriate,
or returned to the manufacturer for disposal. Under
NO circumstances should refrigerant be vented to
atmosphere. Drain the oil from the unit into a suitable
container and dispose of according to local laws and
regulations governing the disposal of oily wastes. Any
spilt oil should be mopped up and similarly disposed
of.
Isolate the unit heat exchangers from all external water
systems and drain the heat exchanger sections of the
system. If no isolation valves are installed it may be
necessary to drain the complete systems.
WARNING
If glycol or similar solutions have been
used in the water system(s), or Chemical
additives are contained, the solution MUST
be disposed of in a suitable and safe
manner. Under NO circumstances should
any system containing glycol or similar
solutions be drained directly into domestic
waste or natural water systems.
After draining, the water pipework can be disconnected
and removed.
Packaged units can generally be removed in one piece
after disconnection as above. Any fi xing down bolts
should be removed and then the unit should be lifted
from position using the points provided and equipment
of adequate lifting capacity.
Reference should be made to Section 4 for unit
installation instructions, Section 9 for unit weights and
Section 3 for handling.
Units which cannot be removed in one piece, after
disconnection as above, must be dismantled in position.
Special care should be taken regarding the weight
and handling of each component. Where possible
units should be dismantled in the reverse order of
installation.
Residual solution, refrigerant, oil and glycol or
similar fluids may remain in some parts of the
system. These should be mopped up and disposed
of as described above.
It is important to ensure that whilst components are
being removed the remaining parts are supported in a
safe manner.
WARNING
Only use lifting equipment of adequate
capacity.
After removal from position the unit parts may be
disposed of according to local laws and regulations.
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