Trane CVGF-SVN02B-E4 - Power Supply Wiring; Copper Conductors; Circuit Breakers and Fusible Disconnects

CVGF-SVN02B-E4
57
Installation:
Electrical
Power Supply Wiring
To assure that power supply
wiring to the starter panel is
properly installed and
connected, review and follow the
guidelines outlined below.
3-Phase Power Source
1. Verify that the starter
nameplate ratings are
compatible with the power
supply characteristics and with
the electrical data on the unit
nameplate.
2. If the starter enclosure must
be cut to provide electrical
access, exercise care to
prevent debris from falling
inside the enclosure. If the
starter cabinet has a
removable panel, be sure to
remove the panel from the
unit before drilling holes.
CAUTION
Damage to Starter
components!
To avoid damage remove debris
inside the starter panel. Failure
to do so may cause an electrical
short that seriously damages the
starter components.
3. Use copper conductors to
connect the 3-phase power
supply to the remote or unit-
mounted starter panel.
CAUTION
Use Copper Conductors
Only!
Unit terminals are not designed
to accept other types of
conductors. Failure to use
copper conductors may result in
equipment damage.
4. Size the power supply wiring
in accordance with the
Minimum Circuit Ampacity
(MCA) shown on the unit
nameplate.
(MCA = (RLA x 1.25) + Control
Power Load)
5. Make sure that the incoming
power wiring is properly
phased; each power supply
conduit run to the starter must
carry the correct number of
conductors to ensure equal
phase representation. See
Figure 14.
6. As you install the power
supply conduit, make sure
that this position does not
interfere with the
serviceability of any of the
unit components, nor with
structural members and
equipment.
Also, assure that the conduit is
long enough to simplify any
servicing that may be necessary
in the future (for example,
starter removal).
Note: Use flexible conduit to
enhance serviceability and
minimize vibration transmission.
Circuit Breakers and
Fusible Disconnects
Size the circuit breaker or fuse
disconnect in compliance with
NEC or local guidelines.
Figure 14. Proper phasing for starter power supply wiring and
conduit loading