Waterbox Removal And Installation; Discussion; Procedure - Trane CVHE Installation, Operation And Maintenance Manual

Waterbox Removal and Installation

Important: Only qualified technicians should perform
the installation and servicing of this
equipment.

Discussion

This section will discuss recommended hoist ring/clevises
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 of the
waterbox.
• It is the responsibility of the person(s) providing and
using the rigging and lifting devices to inspect these
devices to ensure 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

WARNING
Heavy Objects!
Failure to properly lift waterbox could result in death or
serious injury. 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. Refer to Table 22, p. 77
WARNING
Straight Vertical Lift Required!
Failure to properly lift waterbox in straight vertical lift
could result in death or serious injury. 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 gradually increasing
manner. Angular lifts will significantly lower maximum
loads and should be avoided whenever possible. Loads
should always be applied to eyebolts in the plane of the
eye, not at some angle to this plane.
Review mechanical room limitations and determine the
safest method or methods of rigging and lifting the
waterboxes.
1. Determine the type and size of chiller being serviced.
Refer to Trane nameplate located on chiller control
panel.
Important: This literature contains rigging and lifting
information only for Trane CTV chillers built
in La Crosse. For Trane CTV chillers built
CVHE-SVX02H-EN
for waterbox weights.
outside the United States, refer to literature
provided by the applicable manufacturing
location.
2. Select the proper lift connection device from the
Table 23, p. 78. The rated lifting capacity of the selected
lift connection device must meet or exceed the
published weight of the waterbox. Verify the waterbox
weight from the latest published literature.
3. Ensure that the lift connection device has the correct
connection for the waterbox (e.g., thread type [course/
fine, English/metric] and bolt diameter [English/
metric]).
4. Properly connect the lift connection device to the
waterbox. Refer to Figure 46, p. 75
lift connection device is securely fastened.
CTV units—Install hoist ring on to the lifting connection
on the waterbox. Torque to 100 ft·lb (135.6 N·m) for
3/4-in. (19.05-mm) threaded connections and 28 ft·lb
(38.0 N·m) for 1/2-in. (12.7-mm) threaded connections.
Figure 46. Waterbox rigging and lifting—condenser and
evaporator connections
5. Disconnect water pipes, if connected.
6. Remove waterbox bolts.
7. Lift the waterbox away from the shell.
and ensure that the
75