Chamberlain LIFTMASTER SL920 - Manual (Page 2)

2
General Information.................................................................................................................3, 4
Features...................................................................................................................................5
Parts Identification...................................................................................................................6, 7
Installation................................................................................................................................8-11
Contents
Master Second...................................................................................................................18
Wiring Diagrams....................................................................................................................19, 20
Fine Tuning............................................................................................................................17
Electrical................................................................................................................................13-16
Alternate Installation..............................................................................................................12
Options..................................................................................................................................22-24
Safety Edge...........................................................................................................................21
Maintenance and Safety........................................................................................................25
Troubleshooting....................................................................................................................26, 27
IMPORTANT SAFETY INSTRUCTIONS
WARNING - To reduce the risk of injury or death:
1) READ AND FOLLOW ALL INSTRUCTIONS
2) Never let children operate or play with gate controls. Keep the remote control away from children.
3) Always keep people and objects away from the gate. NO ONE SHOULD CROSS THE PATH OF THE MOVING GATE.
4) Test the gate operator monthly. The gate MUST reverse on contact with a rigid object or stop when an object activates the non-contact sensors. After
adjusting the force or the limit of travel, retest the gate operator. Failure to adjust and retest the gate operator properly can increase the risk of injury or death.
5) Use the emergency release only when the gate is not moving.
6) KEEP GATES PROPERLY MAINTAINED. Read the owner's manual. Have a qualified service person make repairs to gate hardware.
7) The entrance is for vehicles only. Pedestrians must use separate entrance.
8) SAVE THESE INSTRUCTIONS.
Notes......................................................................................................................................28-31
Pg.