Section 9 - Decommissioning, Dismantling, And Disposal - York EX Series Installation, Operation & Maintenance Instructions Manual

FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017

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 up to approx. 0.01~0.02 MPa.G.
4. Prepare a suitable container. See Table 5 on page
32 and Table 6 on page 32. Drain the remain-
der of the solution and refrigerant in the unit from
each service valve as completely as possible into
a container. Dispose of them in a suitable and safe
manner.
5. 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.
6. If glycol was used in the water system, or chemi-
cal additives are contained, dispose of the solu-
tion in a suitable and safe manner. Under NO cir-
cumstances should any system containing glycol
be drained directly into domestic waste or natural
water systems.
JOHNSON CONTROLS
7. After draining, disconnect and remove the water.
8. Remove fixing down bolts, and then lift the unit
from position, using the points provided and
equipment with adequate lifting capacity.
See SECTION 3 - HANDLING, STORAGE, INSTAL-
LATION AND REASSEMBLY for unit installation in-
structions, and Table 10 on page 36 and Table 6 on
page 32 for unit weights.
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.
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