Medium Voltage Installation
CVHH-SVX001A-EN 61
Note: If the box is removed for installation purposes, the
motor terminals MUST be protected against
impact or stress damage. Field fabrication of a
cover or guard is required.
• The motor terminal box is large enough to
accommodate the use of stress cones.
• If conduit is applied, a flexible connection of the
conduit to the box should be made to allow for unit
serviceability and for vibration isolation. The cable
should be supported or protected against abrasion and
wear on any edges or surfaces. Cable or conduit
openings can be cut at any location in the box sides,
top, or bottom for cable entry. Always ensure that
debris does not remain in the box after cutting cable
entry holes.
Motor Supply Wiring
Note: Graphic labels (shown above) are used for CE
application only.
Important:
• Before servicing, disconnect all power sources and
allow at least 30 minutes for capacitors to discharge.
• All electrical enclosures—unit or remote—are IP2X.
Motor circuit wire sizing by the installer must be made in
accordance with the National Electric Code or any other
applicable codes
.
Three terminals are provided on the chiller for the
connection of power to the motor from the starter. Power
leads to motors must be in multiples of three, with equal
phase representation in all conduits or wire trays. To limit
the effects of corona or ionization with cables carrying
more than 2000V, Trane requires that the power cable have
a metallic shield, unless the cable is specifically listed or
Box W eight ( kg) Volt Range
A256
(a)
(a) Motor terminal box cover-only weight is 24.9 kg (55 lb).
6000–13.8kV
Frame 6800, 6800L
B117.3
2300–13.8kV
Frame 440E, 5000, 5800, 580L
C58.5
380–600 Vac
Fram e 440E, 5000
Note: Lifting holes are 14.3 m m.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/ state/ national electrical codes.
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