16
Unison Enclosure Install
Route and Connect Interconnect Cables to Adjacent DRd Enclosure(s)
ETC has supplied extra-flexible wire for phase, neutral, and ground lugs from the auxiliary enclosure to
the DRd enclosure(s). Once your auxiliary and DRd enclosures are installed, feed the load wires through
the side chase nipples to the adjacent DRd enclosure phase, neutral, and ground lugs. Your AX6,
AX12, or AX12X will be supplied with one or two sets of cables, depending on the model ordered.
1:
Route the ETC supplied interconnect cabling through the conduit knockouts on either side of
the auxiliary enclosure to the adjacent DRd enclosure(s).
.
2:
Pull each cable to the appropriate lug. It is necessary to cut the cable to the pre-marked length
in DRd6 applications
3:
Attach each cable to its appropriate phase, neutral and ground lugs inside the DRd enclosure
using the supplied copper foil to avoid damaging the fine stranding of the extra-flexible wire.
4:
Tighten the lugs to the correct torque based on cable size. Refer to the table on the previous
page.
5:
Fill empty spaces of the conduit openings with UL/CE approved filler.
Note:
Tie wrap the interconnect cables to the back wall of the DRd immediately after they
are pulled through the conduit fitting. This prevents the cables from unnecessarily
restricting the air flow to the fan.
Note:
When you order a single phase auxiliary enclosure from the factory, the interconnect
cables will be installed in a single-phase configuration. See the
DRd Enclosure
Installation Manual
for instructions to configuring the DRd enclosure bus for single-
phase operation.
CAUTION:
Failure to use the proper torque when tightening the set screws can cause
premature failure of the equipment.
CAUTION:
Air leaks can cause DRd enclosures to shut down due to insufficient air flow.
See
.
