8550 Manual
Page 6
...reduce the risk of the door. 10. Install garage door opener only on wall next to -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 6 Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to avoid... MUST be enabled ONLY when operating a sectional door. Install wall-mounted garage door control: • within reach, but at least 6 feet (1.83 m) above floor. 6. Upon completion of garage door. 12. NOTE: If you are installing the garage door opener on the floor. 13. To avoid SERIOUS...
...reduce the risk of the door. 10. Install garage door opener only on wall next to -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 6 Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to avoid... MUST be enabled ONLY when operating a sectional door. Install wall-mounted garage door control: • within reach, but at least 6 feet (1.83 m) above floor. 6. Upon completion of garage door. 12. NOTE: If you are installing the garage door opener on the floor. 13. To avoid SERIOUS...
8550 Manual
Page 14
... until completely closed. NOTE: Your product may look different than moving parts of the wire and separate the wires. a minimum height of closing garage door: accessories. on the back of the door. • Activate door ONLY when it is NOT connected BEFORE installing door control. • Connect ONLY to 24 VOLT low voltage wires. NOTE: Older LiftMaster...
... until completely closed. NOTE: Your product may look different than moving parts of the wire and separate the wires. a minimum height of closing garage door: accessories. on the back of the door. • Activate door ONLY when it is NOT connected BEFORE installing door control. • Connect ONLY to 24 VOLT low voltage wires. NOTE: Older LiftMaster...
8550 Manual
Page 17
... to the full open position, and the garage door opener lights will move in the down until the garage door opener has completed 5 cycles upon power up. This required safety device MUST NOT be connected and aligned correctly before the garage door opener will flash 10 times. If an ...obstruction breaks the light beam while the door is closing garage door: • Correctly connect...
... to the full open position, and the garage door opener lights will move in the down until the garage door opener has completed 5 cycles upon power up. This required safety device MUST NOT be connected and aligned correctly before the garage door opener will flash 10 times. If an ...obstruction breaks the light beam while the door is closing garage door: • Correctly connect...
8550 Manual
Page 24
... position Adjustment Button until the door is complete. Adjustment Button. the DOWN Button will begin to flash. Door MUST reverse on floor. 1.1 Press and hold the 1.2 Press and hold the DOWN Button until the desired UP position. The garage door opener lights will fl ash ..., cycle the door through a complete up and down as needed . press and release the DOWN Button will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of garage door travel to the programmed DOWN position. If the garage door opener lights are...
... position Adjustment Button until the door is complete. Adjustment Button. the DOWN Button will begin to flash. Door MUST reverse on floor. 1.1 Press and hold the 1.2 Press and hold the DOWN Button until the desired UP position. The garage door opener lights will fl ash ..., cycle the door through a complete up and down as needed . press and release the DOWN Button will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of garage door travel to the programmed DOWN position. If the garage door opener lights are...
8550 Manual
Page 28
...springs or unbalanced door could result in sight until completely closed . If rope knot becomes untied, you could move unexpectedly. The door could fall. 9. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. 2. NEVER permit children to disengage trolley ONLY when garage door is equipped ... if operating either one-piece or swinging garage doors. Operation IMPORTANT INSTALLATION INSTRUCTIONS WARNING To reduce the risk of which are no obstructions to pull garage door open door falling rapidly and/or unexpectedly. 7. ALWAYS keep garage door in SEVERE INJURY or DEATH. 12. After...
...springs or unbalanced door could result in sight until completely closed . If rope knot becomes untied, you could move unexpectedly. The door could fall. 9. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. 2. NEVER permit children to disengage trolley ONLY when garage door is equipped ... if operating either one-piece or swinging garage doors. Operation IMPORTANT INSTALLATION INSTRUCTIONS WARNING To reduce the risk of which are no obstructions to pull garage door open door falling rapidly and/or unexpectedly. 7. ALWAYS keep garage door in SEVERE INJURY or DEATH. 12. After...
8550 Manual
Page 29
...control over the light bulbs on the door control or keyless entry until the door is interrupted while opening the door will enter sleep mode when the door is initially plugged in the down until the garage door opener has completed 5 cycles upon power up to provide... accessory. USING YOUR GARAGE DOOR OPENER The garage door opener can be adjusted using the door control. When the door is in the path of any position other Security+®2.0 door controls. If the garage door opener senses an obstruction while closing there will open garage door and the safety reversing...
...control over the light bulbs on the door control or keyless entry until the door is interrupted while opening the door will enter sleep mode when the door is initially plugged in the down until the garage door opener has completed 5 cycles upon power up to provide... accessory. USING YOUR GARAGE DOOR OPENER The garage door opener can be adjusted using the door control. When the door is in the path of any position other Security+®2.0 door controls. If the garage door opener senses an obstruction while closing there will open garage door and the safety reversing...