Trane CVHH CenTraVac, Инструкция по установке, эксплуатации и обслуживанию

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CVHH-SVX001G-EN 69
Table 23. Motor terminal box dimensions
Box Weight
Volt Range
lb
kg
A
564 (a) 256 (a)
6000–13.8kV
Frame 6800, 6800L
B 259 117.3
2300–13.8kV
Frame 440E, 5000, 5800, 580L
C 129 58.5
380–600 Vac
Frame 440E, 5000
Note: Lifting holes are 0.56 in. (14.3 mm).
(a) Motor terminal box cover-only weight is 55 lb (24.9 kg).
N No otte e:: 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 NO debris remains in the box after
cutting cable entry holes.
Motor Supply Wiring
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N No otte e:: Graphic labels (shown above) are used for CE
application only.
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• 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 (NEC) 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 approved for non-shielded use.
If the cable is shielded, the shielding must be grounded
at one end (grounding is typically done at the starter or
supply end).
Care must be taken while routing the incoming cables
to ensure that cable loads or tensions are not applied to
the terminal or premature terminal failure could result.
Motor Terminals
Field-provided, ring-type lugs, with no sharp edges or
corners, must be used by a qualified installer to
connect the power wiring to the motor terminals.
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