62 RTHD-SVX02H-EN
Waterbox Removal and Installation
Introduction
The purpose of this bulletin is to communicate waterbox
weights, recommended connection devices, and con-
nection and lifting arrangements for RTHD water cooled
chillers.
Important
Only qualied technicians should perform the installa-
tion and servicing of equipment referred to this bulletin.
ATTENTION:
Warnings, Cautions and Notices appear
at appropriate sections throughout this literature. Read
these carefully:
D
WARNING
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
D
CAUTION
Indicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury.
It could also be used to alert against
unsafe practices.
NOTICE:
Indicates a situation that could result
in equipment or property-damage
only
Discussion
This bulletin will discuss recommended hoist ring/clevis-
es and lifting. Proper lifting technique will vary based on
mechanical room layout.
• It is the responsibility of the person(s) performing
the work to be properly trained in the safe practice of
rigging, lifting, securing, and fastening the of water
box.
• It is the responsibility of the person(s) providing and
using the rigging and lifting devices to inspect these
devices to insure they are free from defect and are
rated to meet or exceed the published weight of the
waterbox.
• Always use rigging and lifting devices in accordance
with the applicable instructions for such device.
Procedure
D
WARNING
Heavy Objects!
Each of the individual cables (chains or slings) used to
lift the waterbox must be capable of supporting the
entire weight of the waterbox. The cables (chains or
slings) must be rated for overhead lifting applications
with an acceptable working load limit. Failure to prop-
erly lift waterbox could result in death or serious injury.
D
WARNING
Eyebolts!
The proper use and ratings for eyebolts can be found in
ANSI/ASME standard B18.15 Maximum load rating for
eyebolts are based on a straight vertical lift in a grad-
ually increasing manner. Angular lifts will signicantly
lower maximum loads and should be avoided whenev-
er possible. Loads should always be applied to eyebolts
in the plane of the eye, not at some angle to this plane.
Failure to properly lift waterbox could result in death or
serious injury.
Review mechanical room limitations and determine the
safest method or methods of rigging and lifting the wa-
terboxes.
1. Determine the type and size of chiller being serviced.
Refer to Trane Nameplate located on chiller control
panel.
Important: This bulletin contains rigging and lifting
information for Trane RTHD water cooled chillers
built in Taicang China only. For Trane chillers built
outside China, refer to literature provided by the
applicable manufacturing location.
2. Select the proper lift connection device from Table
17. The rated lifting capacity of the selected lift con-
nection device must meet or exceed the published
weight of the waterbox.
3. Insure the lift connection device has the correct
connection for the waterbox. Example: thread type
(coarse/fine, English/metric). Bolt diameter (English/
metric).
4. Properly connect the lift connection device to the
waterbox. Refer to Figure 30. Insure lift connection
device is securely fastened Install hoist ring on to the
lifting connection on the waterbox. Torque to 37Nm
(28 ft-lbs) for M12 x1.75 (mm) threaded connection.
5. Disconnect water pipes, if connected.
6. Remove waterbox bolts.
7. Lift the waterbox away from the shell.
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