Disassembly
CVHS-SVN04E-EN
17
3. This connection is near the bottom of the evaporator.
. Do NOT remove the screws at this time.
4. Economizers are connected to the evaporator shell via
screwed flanges. See
. Remove the
screws at this flanged connection.
5. Remove the economizer vent pipe flange hex head
screws on the economizer and the vent pipe to the
compressor first stage volute connection flange hex
head screws. Remove economizer vent line (unless the
compressor has already been removed to gain vertical
clearance.)
6. Secure economizer with appropriate rigging.
7. Remove the hex head screws from the condenser and
evaporator liquid line connection flanges. Adjust the
floor jack as necessary to support the weight of the
economizer.
8. Remove the economizer vent pipe flange screws to
loosen the economizer. When the screws are free, back
the economizer away from the chiller. The economizer
may tend to rotate off the jack. Be prepared to offset
any rotation.
9. Move the economizer away from the chiller and set it
on a pallet. Cover all openings to prevent the entry of
foreign material into the economizer, condenser and
compressor.
10. Use the reverse order to reassemble the economizer
on the chiller. Be sure to install new O-rings at the
appropriate joints.
11. Torque all screws to specifications. Consult with your
Trane service group for specific torques for your
economizer design.
Condenser/Evaporator
Disassembly
After the compressor assembly has been removed, the
condenser and evaporator shells can be taken apart at
flanged connections to reduce the horizontal clearance
required for the chiller installation.
1. Ensure that condenser and evaporator shells are
securely supported on level ground. If not, shim under
the bases.
2. Support the condenser with rigging using the lifting
holes on the tube sheets. See
. Do NOT lift the
shell, simply support it to avoid slipping as the screws
are removed from the connecting flange.
Figure 15.
Evaporator-Condenser-Economizer line
flanges
WARNING
Heavy Objects!
Failure to follow instructions below or properly lift
component could result in component dropping and
possibly crushing operator/technician which could
result in death or serious injury, and equipment or
property-only damage. Ensure that all the lifting
equipment used is properly rated for the weight of the
component being lifted. Each of the cables (chains or
slings), hooks, and shackles used to lift the component
must be capable of supporting the entire weight of the
component. Lifting cables (chains or slings) may not be
of the same length. Adjust as necessary for even
component lift.
Figure 16.
Separable shell unit
