110Vac External Loop Detector Wiring - Chamberlain ELITE Series Owner's Manual

1 1 0 V a c E X T E R N A L L O O P D E T E C T O R W I R I N G
110Vac "Center" Loop Detector: Allows gate to stay open when vehicles are
obstructing path. Caution: This option is for all vehicles including ones less than
14 feet long. Center loop system requires two safety loops.
110Vac "Safety" Loop Detector: Allows gate to stay open when vehicles are
obstructing path. Caution: Suggested for vehicles 14 feet or longer. If a vehicle is
shorter, a center loop system is recommended and should be installed.
If the "Inside" and "outside" safety loops are connected to the same loop detector:
• They should be series connected to the detector.
• Have the same dimensions.
• Have the same number of wire turns. (See table below.)
110Vac "Exit" Loop Detector: Allows gate to automatically open for exiting
vehicles.
Number of Wire Turns Needed for Loop Sizes
Loop Perimeter
10 feet to 13 feet
14 feet to 26 feet
27 feet to 80 feet
80 feet and up
Contact your local dealer
for more information
about loop detectors.
Insulated loop wire
3 turns shown, amount varies.
Installing Insulated Loop Wire
Number of Wire Turns
The wire MUST be twisted together 6 twists per foot
from the end of the feeder slot to the loop detector.
1/8" to 1/4" Width Saw Cut
Road Surface
Sealant
Backer Rod
Refer to table.
(Sold Individually)
4
3
2
1
Home Run
2" to 2.5" Depth
Saw Cut
24
Center Loop
Safety Loop
Exit Loop
The wire is continuously wound in
the loop saw cut for the required
number of turns. One turn shown
(refer to table).
Remove sharp inside corners
by making corner cuts.
Feeder Slot
Recommended Loop Wire XLPE 12-18 gauge
(Use heavier wire gauge for a more durable loop.)
NOTE: Wire mesh or reinforcement
imbedded in the road surface should be
cut away a minimum of 6 inches from
the perimeter of the loop.
NOTE: Use
separate 110Vac
power for each
loop detector.
Saw Cut