Additional Items For Purchase

The following items are REQUIRED to complete the installation.

All Models:

GA420D Only:

SAFETY SENSORS

JUNCTION BOX

The Safety Sensors, model 916GA, are intended for installation with the operators covered in this manual. To order call: 1-866-826-4943 or visit www.chamberlain-diy.com.

HARDWARE

•5/16" mounting hardware for gate bracket.

•The following hardware is needed to mount the control box depending on the mounting surface:

Wood: Four #8 1-1/4" zinc plated wood screws.

Metal: Four #10-32x6" zinc plated machine screws with nut and lock washers.

Concrete, Brick, etc.: Four 1/4" x 1-3/4" masonry screws.

The Junction Box is needed to connect the second arm to the extension cable (GA420D Installation Only).

•UL Listed outdoor/all-weather junction box with a minimum of two 3/4" NPT threaded port and appropriate all-weather cover.

•Conduit fitting to connect 3/4" PVC Schedule 40 conduit to junction box.

CONDUIT

The conduit is needed to hold the interconnecting cable between the Junction and Control Box (GA420D Installation Only).

• 3/4" diameter UL Listed outdoor electrical conduit

LOW VOLTAGE WIRE

The low voltage wire is needed to connect the transformer to the control box. The specific length required depends on the distance from the indoor outlet to the control box.

Measure carefully, it is not recommended to splice low voltage wire.

UL approved Class 1 or Class 3 direct burial/underground, sunlight/UV resistant 16 gauge 2-conductor/stranded low voltage lighting wire.

The following products are available at most home center hardware stores and meet these specifications:

• Chamberlain Models 917GA or 918GA

AUTOMATIC GATE LOCK AND HARD STOPS (OPTIONAL)

In windy areas to ensure the gate stops at the same place each time we recommended the purchase of an automatic gate lock for the closed position and hard stop(s) for the open position.

Tools Needed

During assembly, installation and adjustment of the operator, instructions will call for tools as illustrated below.

Deep Well Sockets

 

Drill Bits

 

and Wrench

 

 

 

1/2", 3/16", 5/16"

 

1/2", 5/8", 7/16", 9/16"

Drill

 

and 5/32"

Clamps

and 1/4"

 

 

 

Welder (Optional)

1

2

 

Adjustable End Wrench

Tape Measure

Pencil

Carpenter's Level

 

 

 

 

 

 

Screwdriver

Phillips Head Screwdriver

 

 

Hammer

Wire Strippers (Optional)

Wire Cutters (Optional)

 

 

7

Introduction