Barnes UltraGRIND Installation Manual - page 8
B-4) INCOMING CABLE LOCATION:
For installations using a cover & J-Box go to Section B-4.1.
For installations using the combination cover go to Section
B-4.3.
B-4.1) Direct Burial Cable with Cable Grips
(Cover with J-Box):
Backfill and compact to a convenient level to work around top
of basin. Locate and drill holes (see page 27 for hole sizes)
for the Direct Burial cable grips in the basin wall. Holes should
be located at least 18 inches below grade. Feed the direct
burial cable through the cable grips and into the junction box
and tighten the grips on the box and the basin. It is
important to leave enough cable slack between the
junction box and basin wall to allow the cover to be
removed (See Figure 9).
B-4.2) Direct Burial Cable with Conduit Coupling
(Cover with J-Box):
Backfill and compact to a convenient level to work around
top of basin. To install an OPTIONAL conduit coupling
(see Figure 10),
1. Find the location where the center of the coupling will
be positioned on basin.
2. Using a HOLE SAW, cut the hole in the basin to the
outside diameter of the coupling being installed.
3. Place coupling on basin wall and drill mounting holes
in basin.
4. Apply gasket or sealing caulk to back of coupling, and
mount coupling on basin.
5. Insert bolts, washers and nuts through basin wall and
coupling, and tighten.
After coupling has been installed, run the direct burial
cable through the coupling and into the junction box and
tighten the grips on the box. It is important to leave
enough cable slack between the junction box and
basin wall to allow the cover to be removed (See Figure
10). See Section B-7 for sealing of junction box.
B-4.3) Direct Burial Cable with Cable Grips
(Combination Cover):
Backfill and compact to a level comfortable to work around
basin. Remove cord grip located in parts common box,
shipped inside the basin. Make sure cable will fit and seal in
the cord grip prior to mounting in the basin. Drill a hole to size
specified in chart for your size cord grip supplied. The hole
should be located a minimum of 18 inches below grade or
per NEC and local codes. Install the grip with the cord grip
body inside the basin and the lock nut on the outside and
tighten locknut to 1/2 turn past hand tight. Feed the direct
burial cable through the grip and into the grommet assembly
labeled "DB" in the insert. Reference the label on top of the
control panel to locate the correct grip in the control panel to
put the wire into. Leave enough cable inside the panel to
reach all connection points. Tighten the grips leaving
enough slack between the basin wall and the insert to
remove the insert completely off the basin.
Figure 9
DIRECT BURIAL
CABLE
CABLE GRIPS
BASIN WALL
JUNCTION BOX
CABLE GRIPS
Figure 10
DIRECT
BURIAL
CABLE
CONDUIT
COUPLING
BASIN WALL
JUNCTION BOX
CABLE GRIPS
OPTIONAL Conduit Hub Installation:
Figure 11
CABLE GRIPS
CABLE GRIPS
CONVERTABLE
COVER INSERT
CONTROL
PANEL
8