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FORM 155.35-ICOM2.EN.CE/GB (1018)
DATE: 10/30/2018
SECTION 9 - DECOMMISSIONING, DISMANTLING, AND DISPOSAL
Unless otherwise indicated, the operations described
below can be performed by any properly trained main-
tenance technician.
1. Isolate all sources of electrical supply to the unit,
including any control system supplies switched
by the unit. Make sure that all points of isolation
are secured in the off position.
2. Disconnect and remove the supply cables. For
connection points, see SECTION 3 – HANDLING,
STORAGE, INSTALLATION AND REASSEM-
BLY.
3. Fill the interior of the unit with N2 gas to pressur-
ize from 0.01~0.02 MPa.G.
4. Prepare a suitable container. See Table 5 on page
47
5. Drain the remainder of the solution and refriger-
ant in the unit from each service valve as com-
pletely as possible into a container.
6. Dispose of the containers in a suitable and safe
manner.
7. Isolate the unit heat exchanger from the external
water systems and drain the heat exchanger sec-
tion of the system. If no isolation valves are in-
stalled it may be necessary to drain the complete
system.
JOHNSON CONTROLS
8. If glycol was used in the water system, or chemi-
cal additives are contained, dispose of the solution
in a suitable and safe manner.
Under NO circumstances should any
system containing glycol be drained
directly into domestic waste or natural
water systems.
9. After draining, disconnect and remove the water.
10. Remove fixing down bolts, and then lift the unit
from position, using the points provided and
equipment with adequate lifting capacity.
Units, which cannot be removed in one piece after dis-
connection, must be dismantled in position. Handle
each component carefully. Where possible, dismantle
units in the reverse order of installation.
Make sure that while components are being removed,
the remaining parts are supported in a safe manner.
Only use lifting equipment of adequate
capacity.
After removing the unit from position, dispose of the
unit parts according to local laws and regulations.
9
125
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