6.1 Decommissioning
When decommissioning a unit for a lengthy period of
time, the following tasks or activities are to be carried out:
• Shut off the energy supply (electrical lines and all
media).
• Drain all fluid from coils and pipe system.
• After three weeks water coils should be blown through
with pressure air to secure that no fluid is left.
• For equipment with an integrated control cabinet, con-
trol cabinet heating should remain switched on.
• Existing dampers must be closed.
• Remove contaminated filters.
• De-water the humidifiers.
• Regarding large fans decommissioned for a lengthy
period, if these are not occasionally rotated, bearing
damage can be expected. In order to avoid bearing
damage, the fans are to be rotated once a week.
• If decomissioning lasts longer than four weeks, v-belts
should be removed.
• General cleaning of components set for decommission-
ing.
The instructions in the individual chapters must be
adhered to, as well.
6.2 Dismantling and disposal
After its useful service life has run out, the equipment
should be professionally dismantled.
Prior to dismantling, it must be ensured that all energy
lines (electrical and all media) are switched off. No lines
should remain supplied with pressure, temperature or
other energy.
Subsequent to this, it must be ensured that all operating
media has been removed from the system; no water, oil or
refrigerant may remain in the system.
All components and operating media (e.g. oils, refriger-
ant, brine) are to be disposed or recycled in accordance to
national regulations.
6. Decommissioning
7.1 Fire prevention
As a rule, local and national fire prevention regulations
must be adhered to.
If the air handling system is part of a smoke-removal con-
cept, then the related guidelines must be adhered to.
Otherwise, in case of fire, immediately remove electrical
power to the equipment by interrupting all phases. Louver
dampers should be closed in order to interrupt the supply
of oxygen and spread of the fire.
7.2 Leakage of harmful substances
Due to its optimised design and construction, this air han-
dling system possesses a very low fire and smoke load.
None-the-less, toxicologically critical substances may
develop. Additionally, smoke related gases from the equip-
ment can be discharged into the control room.
For this reason, appropriate protection equipment should
be used.
Water conducting assembly components can become un-
tight in the event of fire.
Do not remain in the immediate vicinity of the danger
area.
7. Emergency activities
EN.SILVER.110322
The company reserves the right to make design changes without prior notice.
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