Lift-Master SURGE SUPPRESSOR User Manual

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Miracle - One™

surge suppression installation manual

Please read this entire manual before installation

Safe

Possible Damage

50 ft

Properly grounded Miracle-One™

Inputs protected by the Surge Protection Module.

Name of Lines Protected

Motor (Master Unit) Brake (Master Unit) Limits (Master Unit) Motor (Second Unit) Brake (Second Unit) Limits (Second Unit) Center Loop Command Safety Loop Command Exit Loop Command Radio Receiver (Power and Relay) Power Input

Earth Ground Rod Installation

Proper grounding gives an electrical charge, such as from an electrical static discharge or a lightning strike, a path from which to dissipate its energy safely into the earth.

Without this path, the intense energy generated by lightning could be directed towards the gate operator. Although nothing can absorb the tremendous power of a direct lightning strike, proper grounding can protect the gate operator in most cases.

50 ft

Properly grounded Miracle-One™

Number of Lines Protected

1 1 1 1 1 1 1 1 3 2

12 gauge wire

The earth ground rod must be located within 3 feet from the gate operator. Use the proper type earth ground rod for your area.

Before digging more than 18" deep, contact local underground utility locating companies

Avoid damaging gas, power, or other underground utility lines.

The ground wire must be a single, whole piece of wire. Never splice two wires for the ground wire. If you should cut the ground wire too short, break it, or destroy its integrity, replace it with a single wire length.

Not responsible for improper installation or failure to comply with all necessary local building codes.

8 Ft

™

845 Larch Avenue Elmhurst, Illinois 60126

www.chamberlain.com

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Additional Protection Against Surges

For additional protection against surges, ensure that the cables or wires going to your accessories comply with the following rules:

for Gate Operators

All wires going the the accessories The shield A) At the gate operator: To the chassis of the gate operator B) At the accessories: To their chassis (Earth grounding at the accessories will be even more beneficial)

Ensure that the connections to the chassis are made as tight as possible to create good contact.

must

be connected as follows:

must

be shielded wires.

01-50741

For Technical Support: 1-800-528-2806

™

845 Larch Avenue Elmhurst, Illinois 60126

www.chamberlain.com

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Miracle-One™ Surge Protection Board

STEP 1

Unplug transformer.

STEP 5

STEP 2

1 Disconnect the battery cable plug first 2 Unplug J3 plug second 3 Unplug J1 plug last.

STEP 6

Step-by-Step Installation instructions

STEP 3

Remove the control board with 3 screws.

STEP 7

™

STEP 4

Remove the plastic battery rack with 4 nuts.

STEP 8

Remove the batteries from old rack and reinstall them into the new rack.

STEP 9

Rewire the old J1 and J3 plug wires to the surge suppressor terminals.

Place the new battery rack in the control box and secure with the 4 nuts.

STEP 10

Plug transformer back in.

Install the surge suppressor board in position shown with 3 screws supplied.

STEP 11

Reconnect the battery cable plug.

Reinstall the control board in the same screw-hole positions. Connect the J1 and J3 plugs from the surge suppressor board to the control board.

STEP 12

Earth Ground Rod

The green ground wire

MUST

be properly connected to an earth ground rod!

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