Installation - Mechanical; Location Requirements; Rigging - Trane CGAM Installation & Operation Manual

Air-cooled scroll chillers 20 - 130tons
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Installation - Mechanical

Location Requirements

Sound Considerations
Refer toTrane Engineering Bulletin Chiller Sound
Ratings and Installation Guide CG-PRB010-EN for
sound consideration applications.
Locate the unit away from sound-sensitive areas.
Install the optional elastomeric isolators under the
unit. Refer to "Unit Isolation. "
Chilled water piping should not be supported by chiller
frame.
Install rubber vibration isolators in all water piping.
Seal all wall penetrations.
Note: Consult an acoustical engineer for critical
applications.
Foundation
Provide rigid, non-warping mounting pads or a concrete
foundation of sufficient strength and mass to support the
applicable operating weight (i.e., including completed
piping, and full operating charges of refrigerant, oil and
water). Refer to the chapter on "Unit Dimensions/Weights"
for unit operating weights. Once in place, the unit must be
level within 1/4" (6.4 mm) over its length and width.The
Trane Company is not responsible for equipment
problems resulting from an improperly designed or
constructed foundation.
Clearances
Provide enough space around the unit to allow the
installation and maintenance personnel unrestricted
access to all service points. Refer to submittal drawings for
the unit dimensions, to provide sufficient clearance for the
opening of control panel doors and unit service. Refer to
the chapter on "Unit Dimensions/Weights" for minimum
clearances. In all cases, local codes which require
additional clearances will take precedence over these
recommendations.

Rigging

Refer to Unit Dimensions/Weights section for typical unit
lifting weights. Refer to the rigging label attached to the
unit for further details.
32
Lifting Procedure
WARNING
Heavy Objects!
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift. Other lifting arrangements could cause
equipment or property damage. Failure to follow
instructions above or properly lift unit could result in
unit dropping and possibly crushing operator/
technician which could result in death or serious injury.
WARNING
Improper Unit Lift!
Test lift unit approximately 24 inches to verify proper
center of gravity lift point. To avoid dropping of unit,
reposition lifting point if unit is not level. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or serious injury and possible
equipment or property-only damage.
Lifting using either a single spreader bar or an H-type
spreader is acceptable. Attach chains or cables to lifting
beam. Lifting beam crossbars MUST be positioned so
lifting cables do not contact the sides of the unit.
Important: The center of gravity (CG) is never at the
midpoint of the base rail lifting strap holes.
A level unit lift is required for a safe lift and
to prevent unit damage.
Lifting a unit with equal length straps will NOT produce a
level unit during the lift because the CG will not be at the
midpoint between the base lifting holes.The following
adjustments must be made to produce a level lift:
Single spreader bar lifting method
• If the unit CG is closer to the control panel, the
straps on the control panel side of the spreader bar
must be adjusted to be shorter than those on the
opposite side of the spreader bar, allowing the
spreader bar to move toward the control panel and
over the unit CG. Several adjustments of the strap
length may be required to produce a level unit
during lift.
H-type spreader bar lifting method
• If the straps from the H bar to the unit base are the
same length, the crane lifting point on the center
web of the H bar must be adjusted to produce a level
unit lift. See
Figure 35, p. 33
for illustration.
CG-SVX17E-EN

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