8355 Manual
Page 1
...-to-Close* or MyQ® remote operation feature* when the garage door opener is installed on a sectional door. (*Not available on all models) NOTE: If you are installing the garage door opener on a one-piece door, visit www.liftmaster.com for future reference: Serial Number: . PREMIUM Series Belt Drive Garage Door Opener Model 8355 - 1/2 hp FOR RESIDENTIAL USE ONLY ■ Please read this...
...-to-Close* or MyQ® remote operation feature* when the garage door opener is installed on a sectional door. (*Not available on all models) NOTE: If you are installing the garage door opener on a one-piece door, visit www.liftmaster.com for future reference: Serial Number: . PREMIUM Series Belt Drive Garage Door Opener Model 8355 - 1/2 hp FOR RESIDENTIAL USE ONLY ■ Please read this...
8355 Manual
Page 2
... tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement. 5/32 3/16 5/16 12 To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120 V, 60 Hz to avoid malfunction and damage. 1/2 5/8 1/4 7/16 9/16...
... tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement. 5/32 3/16 5/16 12 To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120 V, 60 Hz to avoid malfunction and damage. 1/2 5/8 1/4 7/16 9/16...
8355 Manual
Page 3
... Carton Inventory NOTE: Accessories will be attached to the accessory and are for these accessories will vary depending on your garage door opener. Door bracket D. Rail I SECURITY✚ 2.0TM ACCESSORIES 882LM Multi-Function Door Control 893LM Remote Control Hardware Installation Hex Bolt 5/16"-18 x 7/8" (4) Lag Screw 5/16"-9 x 1-5/8" (2) Clevis Pin 5/16" x 2-3/4" (1) Clevis Pin 5/16" x 1-1/4" (1) Clevis Pin...
... Carton Inventory NOTE: Accessories will be attached to the accessory and are for these accessories will vary depending on your garage door opener. Door bracket D. Rail I SECURITY✚ 2.0TM ACCESSORIES 882LM Multi-Function Door Control 893LM Remote Control Hardware Installation Hex Bolt 5/16"-18 x 7/8" (4) Lag Screw 5/16"-9 x 1-5/8" (2) Clevis Pin 5/16" x 2-3/4" (1) Clevis Pin 5/16" x 1-1/4" (1) Clevis Pin...
8355 Manual
Page 4
... nut. 1.4 Position the belt around the garage door opener sprocket. 1.5 Attach the sprocket cover over the sprocket. Assembly 1 Attach the rail to the garage door opener To avoid possible SERIOUS INJURY to finger from moving garage door opener: • ALWAYS keep hand clear of the garage door opener. 1.2 Align the rail and the styrofoam over the garage door opener sprocket and attach with hex screws.
... nut. 1.4 Position the belt around the garage door opener sprocket. 1.5 Attach the sprocket cover over the sprocket. Assembly 1 Attach the rail to the garage door opener To avoid possible SERIOUS INJURY to finger from moving garage door opener: • ALWAYS keep hand clear of the garage door opener. 1.2 Align the rail and the styrofoam over the garage door opener sprocket and attach with hex screws.
8355 Manual
Page 6
... -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 6 Install garage door opener ONLY on a one -piece or swinging garage doors. DO NOT enable the Timer-to garage door control. 11. NOTE: If you are installing the garage door opener on properly balanced and lubricated garage door. An improperly balanced door may NOT reverse when required and could be...
... -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 6 Install garage door opener ONLY on a one -piece or swinging garage doors. DO NOT enable the Timer-to garage door control. 11. NOTE: If you are installing the garage door opener on properly balanced and lubricated garage door. An improperly balanced door may NOT reverse when required and could be...
8355 Manual
Page 7
...; NEVER try to -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 1.1 Close the door and mark the inside vertical centerline of balance. An unbalanced garage door might NOT reverse when required. To be enabled ONLY when operating ...the Timer-to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of which are installing the garage door opener on the header wall 2" (5 cm) above the door. NOTE: If the total number of Garage Door 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET ...
...; NEVER try to -Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 1.1 Close the door and mark the inside vertical centerline of balance. An unbalanced garage door might NOT reverse when required. To be enabled ONLY when operating ...the Timer-to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of which are installing the garage door opener on the header wall 2" (5 cm) above the door. NOTE: If the total number of Garage Door 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET ...
8355 Manual
Page 9
... outer trolley. If the ladder is raised, pull the trolley release arm down to garage door, rest garage door opener rail on 2x4 placed on top section of door. 4.1 Remove the packing material and lift the garage door opener onto a ladder. NOTE: If the door hits the trolley when it is not tall enough you will need help at this...
... outer trolley. If the ladder is raised, pull the trolley release arm down to garage door, rest garage door opener rail on 2x4 placed on top section of door. 4.1 Remove the packing material and lift the garage door opener onto a ladder. NOTE: If the door hits the trolley when it is not tall enough you will need help at this...
8355 Manual
Page 10
... header bracket. This bracket and fastening hardware are shown. Operate the door manually. Instructions below are for attaching the garage door opener directly to structural supports. 5.1 Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of each bracket to a support... HARDWARE Lock Washer 5/16" Hex Bolt 5/16"- 18x7/8" Hanging your garage door opener will vary depending on your garage. NOTE: DO NOT connect power to structural supports before installing the opener. FIGURE 1 Unfinished Ceiling FIGURE 3 Measure Distance Nut 5/16"-18 FIGURE...
... header bracket. This bracket and fastening hardware are shown. Operate the door manually. Instructions below are for attaching the garage door opener directly to structural supports. 5.1 Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of each bracket to a support... HARDWARE Lock Washer 5/16" Hex Bolt 5/16"- 18x7/8" Hanging your garage door opener will vary depending on your garage. NOTE: DO NOT connect power to structural supports before installing the opener. FIGURE 1 Unfinished Ceiling FIGURE 3 Measure Distance Nut 5/16"-18 FIGURE...
8355 Manual
Page 13
... (away from the ring fastener. trolley will re-engage automatically when the garage door opener is horizontal. Ring Fastener Clevis Pin 5/16" x 1" 9.3 Attach the curved door arm to the outer pulling the emergency release handle. Select two aligned holes (as toward the garage door opener until the far apart as possible) and attach using the clevis pin...
... (away from the ring fastener. trolley will re-engage automatically when the garage door opener is horizontal. Ring Fastener Clevis Pin 5/16" x 1" 9.3 Attach the curved door arm to the outer pulling the emergency release handle. Select two aligned holes (as toward the garage door opener until the far apart as possible) and attach using the clevis pin...
8355 Manual
Page 14
...6-32x1" HARDWARE Drywall Anchors NOTE: For gang box installations it can be seen clearly, is properly adjusted, and there are connected at the garage door opener in a later step. 1.4 Install the bottom screw, allowing 1/8 inch (3 mm) to protrude from the wall. DRYWALL Drywall Anchor Screw 6AB...Be sure power is NOT connected BEFORE installing door control. • Connect ONLY to drill holes or install the drywall anchors. NOTE: Older LiftMaster door controls To prevent possible SERIOUS INJURY or DEATH from a closing garage door. Use the existing holes in sight until ...
...6-32x1" HARDWARE Drywall Anchors NOTE: For gang box installations it can be seen clearly, is properly adjusted, and there are connected at the garage door opener in a later step. 1.4 Install the bottom screw, allowing 1/8 inch (3 mm) to protrude from the wall. DRYWALL Drywall Anchor Screw 6AB...Be sure power is NOT connected BEFORE installing door control. • Connect ONLY to drill holes or install the drywall anchors. NOTE: Older LiftMaster door controls To prevent possible SERIOUS INJURY or DEATH from a closing garage door. Use the existing holes in sight until ...
8355 Manual
Page 15
...or pre-wired installations). RED WHITE WHITE GREY PRE-WIRED INSTALLATIONS: When wiring the door control to the garage door opener make sure you use the same wires that are connected to the garage door opener. Staple 15 Do not pierce the wire with screwdriver tip. To insert or release... the top hole. 1.7 Remove the door control from the door control to the door control. Attach the top screw. Attach the wire to the red and white terminals on the garage door opener. Install the Door Control k 1.5 Position the bottom hole of the door control over the screw and slide down...
...or pre-wired installations). RED WHITE WHITE GREY PRE-WIRED INSTALLATIONS: When wiring the door control to the garage door opener make sure you use the same wires that are connected to the garage door opener. Staple 15 Do not pierce the wire with screwdriver tip. To insert or release... the top hole. 1.7 Remove the door control from the door control to the door control. Attach the top screw. Attach the wire to the red and white terminals on the garage door opener. Install the Door Control k 1.5 Position the bottom hole of the door control over the screw and slide down...
8355 Manual
Page 17
... mode is NO HIGHER than 6 inches (15 cm) above garage floor. NOTE: For energy efficiency the garage door opener will enter sleep mode when the door is closing garage door: • Correctly connect and align the safety reversing sensor. The garage door opener will move in the down until the garage door opener has completed 5 cycles upon power up. above floor Safety Reversing...
... mode is NO HIGHER than 6 inches (15 cm) above garage floor. NOTE: For energy efficiency the garage door opener will enter sleep mode when the door is closing garage door: • Correctly connect and align the safety reversing sensor. The garage door opener will move in the down until the garage door opener has completed 5 cycles upon power up. above floor Safety Reversing...
8355 Manual
Page 19
...(not provided) IGWnsaairdlalege 1.3C Slide the carriage bolt into the slot on the garage door opener. Wing Nut 1/4" - 20 2 Wire the Safety Reversing Sensors OPTION A INSTALLATION WITHOUT PRE-WIRING PRE-WIRED INSTALLATIONS: If your garage 2.1A Run the wire from the terminal, push in the sensor bracket and ...wall and ceiling with the wing nut. Insert the white/black wires into the white terminal on each other. The lens on the garage door opener. Twist the white/black wires together. 2.3A Insert the white wires into the grey terminal on both sensors to sensors, see page...
...(not provided) IGWnsaairdlalege 1.3C Slide the carriage bolt into the slot on the garage door opener. Wing Nut 1/4" - 20 2 Wire the Safety Reversing Sensors OPTION A INSTALLATION WITHOUT PRE-WIRING PRE-WIRED INSTALLATIONS: If your garage 2.1A Run the wire from the terminal, push in the sensor bracket and ...wall and ceiling with the wing nut. Insert the white/black wires into the white terminal on each other. The lens on the garage door opener. Twist the white/black wires together. 2.3A Insert the white wires into the grey terminal on both sensors to sensors, see page...
8355 Manual
Page 20
...sensor wires 7/16" (11 mm) Pre-installed wires 7/16" (11 mm) 2.3B Connect the pre-installed wires to the white terminal on the garage door opener. Insert the wires that you choose the same color pre-installed wires for each sensor. Make sure that are connected to the white/black safety.... For example, the white wire would connect to the yellow wire and the white/black wire would connect to the grey terminal on the garage door opener. Install the Protector System® OPTION B PRE-WIRED INSTALLATION 2.1B Cut the end of the safety reversing sensor wire, making sure the ...
...sensor wires 7/16" (11 mm) Pre-installed wires 7/16" (11 mm) 2.3B Connect the pre-installed wires to the white terminal on the garage door opener. Insert the wires that you choose the same color pre-installed wires for each sensor. Make sure that are connected to the white/black safety.... For example, the white wire would connect to the yellow wire and the white/black wire would connect to the grey terminal on the garage door opener. Install the Protector System® OPTION B PRE-WIRED INSTALLATION 2.1B Cut the end of the safety reversing sensor wire, making sure the ...
8355 Manual
Page 21
...outlet, contact a qualified electrician to make a permanent connection through the 7/8 inch hole in the garage door opener into a grounding type outlet. Be sure the opener is required by your garage door opener has a grounding type plug with ALL local electrical and building codes. • NEVER use .... This plug will only fit into a grounded outlet. 1.2A DO NOT run garage door opener at this time. Power 1 Connect Power To avoid installation difficulties, do not activate the garage door opener at this time. The opener must be in compliance with a third grounding pin.
...outlet, contact a qualified electrician to make a permanent connection through the 7/8 inch hole in the garage door opener into a grounding type outlet. Be sure the opener is required by your garage door opener has a grounding type plug with ALL local electrical and building codes. • NEVER use .... This plug will only fit into a grounded outlet. 1.2A DO NOT run garage door opener at this time. Power 1 Connect Power To avoid installation difficulties, do not activate the garage door opener at this time. The opener must be in compliance with a third grounding pin.
8355 Manual
Page 22
... SENDING SENSOR RECEIVING SENSOR IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING: Make sure there is closing, the door will reverse and the garage door opener lights will blink. 22 Make sure the sensor has been wired correctly: white wires to white terminal and white/black wires ...to the garage door opener. Make sure the sensors are aligned and wired correctly. Power 2 Ensure the Safety Reversing Sensors are aligned The door will not close . The sensors can be aligned by loosening the wing nuts, ...
... SENDING SENSOR RECEIVING SENSOR IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING: Make sure there is closing, the door will reverse and the garage door opener lights will blink. 22 Make sure the sensor has been wired correctly: white wires to white terminal and white/black wires ...to the garage door opener. Make sure the sensors are aligned and wired correctly. Power 2 Ensure the Safety Reversing Sensors are aligned The door will not close . The sensors can be aligned by loosening the wing nuts, ...
8355 Manual
Page 23
... 2x4 laid flat) on programming your new garage door opener use your smartphone to read the QR Code below: To prevent damage to open door provides adequate clearance. To watch a short instructional video on floor. INTRODUCTION Your garage door opener is adjusted automatically when you to program the... travel. 23 UP (Open) DOWN (Close) PROGRAMMING BUTTONS UP Button ...
... 2x4 laid flat) on programming your new garage door opener use your smartphone to read the QR Code below: To prevent damage to open door provides adequate clearance. To watch a short instructional video on floor. INTRODUCTION Your garage door opener is adjusted automatically when you to program the... travel. 23 UP (Open) DOWN (Close) PROGRAMMING BUTTONS UP Button ...
8355 Manual
Page 24
.... When the sensors are misaligned or obstructed (refer to flash. NOTE: The UP and DOWN Buttons can be garage door opener lights will begin to page 22). The garage door opener lights will flash twice and the UP Button will travel limits will interfere with 1-1/2" (3.8 cm) high object (or.... 1.1 Press and hold the 1.2 Press and hold the DOWN Button until the desired UP position. If the garage door opener lights are unable to move the door up and down cycle using the remote control or the UP and DOWN buttons. Programming is complete. If you are...
.... When the sensors are misaligned or obstructed (refer to flash. NOTE: The UP and DOWN Buttons can be garage door opener lights will begin to page 22). The garage door opener lights will flash twice and the UP Button will travel limits will interfere with 1-1/2" (3.8 cm) high object (or.... 1.1 Press and hold the 1.2 Press and hold the DOWN Button until the desired UP position. If the garage door opener lights are unable to move the door up and down cycle using the remote control or the UP and DOWN buttons. Programming is complete. If you are...
8355 Manual
Page 25
... does not reverse on the obstruction, increase the down travel (refer to test the adjustment. If the garage door opener continues to fail the safety reversal test, call for a trained door systems technician. 25 Place the garage door opener carton in either safety reversing sensor is off (alerting you to the fact that the sensor is obstructed...
... does not reverse on the obstruction, increase the down travel (refer to test the adjustment. If the garage door opener continues to fail the safety reversal test, call for a trained door systems technician. 25 Place the garage door opener carton in either safety reversing sensor is off (alerting you to the fact that the sensor is obstructed...
8355 Manual
Page 26
...properly adjusted, and there are made, the safety reversal system MUST be made by a trained door systems technician. 13. After ANY adjustments are no obstructions to pull garage door open . This operator system is CLOSED. DO NOT enable the Timer-to operate or play with... If possible, use handle to door travel. 4. NEVER use emergency release handle to adjust the garage door opener properly increases the risk of children. The door could fall. 9. Failure to disengage trolley ONLY when garage door is equipped with the door open or closed . Operation IMPORTANT SAFETY...
...properly adjusted, and there are made, the safety reversal system MUST be made by a trained door systems technician. 13. After ANY adjustments are no obstructions to pull garage door open . This operator system is CLOSED. DO NOT enable the Timer-to operate or play with... If possible, use handle to door travel. 4. NEVER use emergency release handle to adjust the garage door opener properly increases the risk of children. The door could fall. 9. Failure to disengage trolley ONLY when garage door is equipped with the door open or closed . Operation IMPORTANT SAFETY...