Quantech QTC40160, Установка, эксплуатация и обслуживание

Страница: 185 / 188

Quantech
185
Form QTC4-NM2
Issue date: 05/12/2023
10
Section 10 - Decommissioning, dismantling, and disposal
Never release refrigerant to the atmo-
sphere when emptying the refrigerating
circuits. Suitable retrieval equipment
must be used. If reclaimed refrigerant
cannot be reused. It must be returned to
the manufacturer.
Never discard used compressor oil, as it
contains refrigerant in solution. Return
used oil to the oil manufacturer.
Never discard used compressor oil, as it contains re-
frigerant in the solution. Return used oil to the oil man-
ufacturer.
Unless otherwise indicated, the operations described
as follows can be performed by any correctly trained
maintenance technician.
General
Isolate all sources of electrical supply to the unit in-
cluding any control system supplies switched by the
unit. Ensure that all points of isolation are secured in
the OFF position. The supply cables can then be dis-
connected and removed. For connection points See
Section 4 - Installation .
Remove all refrigerant from each system of the unit
into a suitable container using a refrigerant reclaim or
recovery unit. This refrigerant can then be re-used, if
appropriate, or returned to the manufacturer for dis-
posal. Do not vent refrigerant to the atmosphere. Drain
the refrigerant oil from each system into a suitable con-
tainer and dispose of according to local laws and regu-
lations governing the disposal of oily wastes. Any spilt
oil must be mopped up and disposed of as mentioned
previously in this section.
Isolate the unit heat exchanger from the external wa-
ter systems and drain the heat exchanger section of the
system. If no isolation valves are installed it may be
necessary to drain the complete system.
If glycol or similar solutions have been
used in the water system, or chemical ad-
ditives are contained, the solution must be
disposed of in a suitable and safe manner.
Do not under any circumstances drain
any system containing glycol or similar
solutions directly into domestic waste or
natural water systems.
After draining, the water pipework can be disconnect-
ed and removed.
Packaged units can generally be removed in one piece
after disconnection as previously mentioned in this
section. Remove any fixing down bolts and then lift
the unit from its position using the points provided and
equipment of adequate lifting capacity.
See
Section 4 - Installation
for unit installation instruc-
tions, Section 9 - Maintenance for unit weights and Sec-
tion 3 - Rigging, handling, and storage for handling.
Units that cannot be removed in one piece after discon-
nection as previously mentioned in this section must
be dismantled in position. Special care must be taken
regarding the weight and handling of each component.
Where possible, dismantle units in the reverse order of
installation.
Residual refrigerant oil and glycol or
similar solutions may remain in some
parts of the system. Mop these up and
dispose of as previously described in this
section.
It is important to ensure that whilst components are be-
ing removed the remaining parts are supported in a safe
manner.
Only use lifting equipment of adequate
capacity.
After removal from position, dispose of the unit parts
according to local laws and regulations.