JOHNSON CONTROLS
139
SECTION 7 - DECOMMISSIONING, DISMANTLING, AND DISPOSAL
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
7
SECTION 7 - 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.
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 isolation points are
secured in the off position.
2. Disconnect and remove the supply cables. For
connection points,
refer to form 161.01-PW3.
3. Remove all refrigerant from each system into a
suitable container, using a refrigerant reclaim or
recovery unit. This refrigerant may then be reused,
if appropriate, or returned to the manufacturer for
disposal. Under NO circumstances should refrig-
erant be vented into the atmosphere.
4. Isolate the heat exchangers from the external wa-
ter systems and drain that section of the system. If
no isolation valves are installed it may be neces-
sary to drain the entire system.
• If glycol was used in the water system, or
if the system contains chemical additives,
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.
5. After draining the heat exchangers, disconnect the
water lines.
6. Remove the unit in one piece after disconnect-
ing. Remove all bolts securing the chiller, and lift
the unit using the designated rigging points and
equipment with adequate lifting capacity.
Refer to form 161.01-N1
for unit installation instruc-
tions, and
for unit
weights.
Units, which cannot be removed in one piece after
being disconnected must be dismantled in position.
Handle each component carefully. Where possible, dis-
mantle units in the reverse order of installation.
Make sure that while components are being removed,
the remaining parts are adequately supported.
Only use lifting equipment of adequate
capacity. See form 161.01-N1 for all lift-
ing and rigging.
After removing the unit, dispose of all parts according
to local laws and regulations.
Summary of Contents for YZ MODEL A
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