3255 Manual
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... DOOR OPENER Models 3245 1/3 HP 3255 1/2 HP 3255-2 1/2 HP For Residential Use Only The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com Owner's Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation. ■ The door WILL...
... DOOR OPENER Models 3245 1/3 HP 3255 1/2 HP 3255-2 1/2 HP For Residential Use Only The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com Owner's Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation. ■ The door WILL...
3255 Manual
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... it will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual. When you see these Safety Symbols and... codes 31 3-Button remotes 31 To add, reprogram or change a Keyless Entry PIN 32 Repair Parts 33-34 Rail assembly parts 33 Installation parts 33 Motor unit assembly parts 34 Accessories 35 Repair Parts and Service 36 Warranty 36 INTRODUCTION Safety Symbol and Signal Word Review This ...
... it will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual. When you see these Safety Symbols and... codes 31 3-Button remotes 31 To add, reprogram or change a Keyless Entry PIN 32 Repair Parts 33-34 Rail assembly parts 33 Installation parts 33 Motor unit assembly parts 34 Accessories 35 Repair Parts and Service 36 Warranty 36 INTRODUCTION Safety Symbol and Signal Word Review This ...
3255 Manual
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... garage door may not reverse when required. • NEVER try to avoid entanglement. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of which are under EXTREME tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE... door systems technician. Lift the door about halfway as illustrated below. To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to make sure your door binds, sticks, or is any...
... garage door may not reverse when required. • NEVER try to avoid entanglement. Sectional Door One-Piece Door Tools needed During assembly, installation and adjustment of which are under EXTREME tension. • Disable ALL locks and remove ALL ropes connected to garage door BEFORE... door systems technician. Lift the door about halfway as illustrated below. To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to make sure your door binds, sticks, or is any...
3255 Manual
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...Slack in chain tension is normal when garage door is required. Access Door Safety Reversing Sensor Gap between floor and bottom of your installation. Planning Identify the type and height of Garage Door Extension Spring OR Torsion Spring Wallmounted Door Control Access Door --- --- -- Motor...Reversing Sensor and bottom of the conditions below apply to see if any of door must not exceed 1/4" (6 mm). SECTIONAL DOOR INSTALLATION Horizontal and vertical reinforcement is closed . Motor Unit Vertical Centerline of your garage area to your opener. See page 12. See ...
...Slack in chain tension is normal when garage door is required. Access Door Safety Reversing Sensor Gap between floor and bottom of your installation. Planning Identify the type and height of Garage Door Extension Spring OR Torsion Spring Wallmounted Door Control Access Door --- --- -- Motor...Reversing Sensor and bottom of the conditions below apply to see if any of door must not exceed 1/4" (6 mm). SECTIONAL DOOR INSTALLATION Horizontal and vertical reinforcement is closed . Motor Unit Vertical Centerline of your garage area to your opener. See page 12. See ...
3255 Manual
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...UP Header Bracket 2 Conductor Bell Wire White & White/Red? contain the motor unit and all parts illustrated below . 3245 (1), 3255 (1), 3255-2 (2) LOCK LIGHT Multi-Function Door Control Panel : SECURITY ® Single-Button Remote Control Remote Control Visor Clip Chain Sprocket Cover... Styrofoam Motor Unit with 2-Conductor White & White/Black Bell Wire attached Safety Labels and Literature INSTALLATION HARDWARE Hex Bolt 5/16"-18x7/8" (4) Lag Screw 5/16"-9x1-5/8" (2) Lag Screw 5/16"-18x1-7/8" (2) Clevis Pin 5/16"x2-3/4" (1)...
...UP Header Bracket 2 Conductor Bell Wire White & White/Red? contain the motor unit and all parts illustrated below . 3245 (1), 3255 (1), 3255-2 (2) LOCK LIGHT Multi-Function Door Control Panel : SECURITY ® Single-Button Remote Control Remote Control Visor Clip Chain Sprocket Cover... Styrofoam Motor Unit with 2-Conductor White & White/Black Bell Wire attached Safety Labels and Literature INSTALLATION HARDWARE Hex Bolt 5/16"-18x7/8" (4) Lag Screw 5/16"-9x1-5/8" (2) Lag Screw 5/16"-18x1-7/8" (2) Clevis Pin 5/16"x2-3/4" (1)...
3255 Manual
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...only the bolt previously removed from motor unit! • Tighten both bolts securely through the rail into the motor unit as shown. • Install the sprocket cover: Insert the back tab in the slot on the trolley to garage door opener, use ONLY those bolts/fasteners mounted in ...STEP 2 Attach the Chain to fingers from rail, chain and styrofoam. • REMOVE STYROFOAM. To avoid possible SERIOUS INJURY to the Sprocket and Install the Sprocket Cover • Position chain over sprocket. To avoid SERIOUS damage to obtain more chain slack. • Insert the second washered bolt. ...
...only the bolt previously removed from motor unit! • Tighten both bolts securely through the rail into the motor unit as shown. • Install the sprocket cover: Insert the back tab in the slot on the trolley to garage door opener, use ONLY those bolts/fasteners mounted in ...STEP 2 Attach the Chain to fingers from rail, chain and styrofoam. • REMOVE STYROFOAM. To avoid possible SERIOUS INJURY to the Sprocket and Install the Sprocket Cover • Position chain over sprocket. To avoid SERIOUS damage to obtain more chain slack. • Insert the second washered bolt. ...
3255 Manual
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...door may notice loosening of chain after Adjustment Step 3 (Test the Safety Reversal System). Mount emergency release handle 6 feet (1.83 m) above floor. 6. Install wall-mounted garage door control: • within sight of the garage door. • out of reach of children at its midpoint, re-tighten the ...inner nut to the installation section. Door MUST reverse on contact with the door closed. This is too loose. Chain 1/2" (13 mm) NOTE: During future maintenance, ALWAYS...
...door may notice loosening of chain after Adjustment Step 3 (Test the Safety Reversal System). Mount emergency release handle 6 feet (1.83 m) above floor. 6. Install wall-mounted garage door control: • within sight of the garage door. • out of reach of children at its midpoint, re-tighten the ...inner nut to the installation section. Door MUST reverse on contact with the door closed. This is too loose. Chain 1/2" (13 mm) NOTE: During future maintenance, ALWAYS...
3255 Manual
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...feet (1.22 m) of the left or right of Garage Door 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET Structural Supports Level (optional) Installation procedures vary according to the highest point of Travel Pivot One-piece door without track: jamb hardware One-piece door without track....are under EXTREME tension. • ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. INSTALLATION STEP 1 Determine the Header Bracket Location To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to structural...
...feet (1.22 m) of the left or right of Garage Door 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET Structural Supports Level (optional) Installation procedures vary according to the highest point of Travel Pivot One-piece door without track: jamb hardware One-piece door without track....are under EXTREME tension. • ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. INSTALLATION STEP 1 Determine the Header Bracket Location To prevent possible SERIOUS INJURY or DEATH: • Header bracket MUST be RIGIDLY fastened to structural...
3255 Manual
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...The nail hole is for positioning only. Finished Ceiling - Drill 3/16" pilot holes and fasten the bracket securely to the ceiling. INSTALLATION STEP 2 Install the Header Bracket You can be mounted flush against the ceiling when clearance is minimal. • Mark the side holes. The bracket... Vertical Centerline of Garage Door 6" (15 cm) Maximum Door Spring - HARDWARE SHOWN ACTUAL SIZE Lag Screw 5/16"-9x1-5/8" CEILING HEADER BRACKET INSTALLATION • Extend the vertical centerline onto the ceiling as shown. • Center the bracket on the horizontal line as shown (with the ...
...The nail hole is for positioning only. Finished Ceiling - Drill 3/16" pilot holes and fasten the bracket securely to the ceiling. INSTALLATION STEP 2 Install the Header Bracket You can be mounted flush against the ceiling when clearance is minimal. • Mark the side holes. The bracket... Vertical Centerline of Garage Door 6" (15 cm) Maximum Door Spring - HARDWARE SHOWN ACTUAL SIZE Lag Screw 5/16"-9x1-5/8" CEILING HEADER BRACKET INSTALLATION • Extend the vertical centerline onto the ceiling as shown. • Center the bracket on the horizontal line as shown (with the ...
3255 Manual
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..."x2-3/4" 10 Ring Fastener Have someone hold the opener securely on the garage floor below the header bracket. Header Wall Header Bracket Chain Pulley Bracket INSTALLATION STEP 3 Attach the Rail to secure. NOTE: If the door spring is in the way you'll need help.
..."x2-3/4" 10 Ring Fastener Have someone hold the opener securely on the garage floor below the header bracket. Header Wall Header Bracket Chain Pulley Bracket INSTALLATION STEP 3 Attach the Rail to secure. NOTE: If the door spring is in the way you'll need help.
3255 Manual
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...raise the door, pull down on its side is used to -rail distance. • Remove foam packaging. • Raise the opener onto a stepladder. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to garage door, rest garage door opener rail on 2x4 placed on the top section of the...of the door should be level with the top of the motor unit. Rail Door 2x4 is completed. The trolley can remain disconnected until Installation Step 12 is used to disconnect inner and outer sections. To prevent damage to your door type as illustrated. ENGAGED Trolley Release Arm ...
...raise the door, pull down on its side is used to -rail distance. • Remove foam packaging. • Raise the opener onto a stepladder. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to garage door, rest garage door opener rail on 2x4 placed on the top section of the...of the door should be level with the top of the motor unit. Rail Door 2x4 is completed. The trolley can remain disconnected until Installation Step 12 is used to disconnect inner and outer sections. To prevent damage to your door type as illustrated. ENGAGED Trolley Release Arm ...
3255 Manual
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... bracket to make sure the rail is centered over the door (or in the structural supports. 4. Check to structural supports before installing the opener. Operate the door manually. Grease the top and underside of each side of the hanging bracket to required lengths. 3..... 8. To avoid possible SERIOUS INJURY from each bracket to structural supports of the garage. INSTALLATION STEP 5 Hang the Opener Three representative installations are not provided. 1. Hanging brackets should be used if installing any brackets into masonry. Drill 3/16" pilot holes in line with 5/16"-18x1-7/8" lag...
... bracket to make sure the rail is centered over the door (or in the structural supports. 4. Check to structural supports before installing the opener. Operate the door manually. Grease the top and underside of each side of the hanging bracket to required lengths. 3..... 8. To avoid possible SERIOUS INJURY from each bracket to structural supports of the garage. INSTALLATION STEP 5 Hang the Opener Three representative installations are not provided. 1. Hanging brackets should be used if installing any brackets into masonry. Drill 3/16" pilot holes in line with 5/16"-18x1-7/8" lag...
3255 Manual
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...to the full open circuit. 4. To prevent possible SERIOUS INJURY or DEATH from a closing garage door. Use insulated staples to correct). 1. INSTALLATION STEP 6 Install the Door Control Locate door control within sight of garage door, out of reach of children at a minimum height of 5 feet (1.5 m),... and away from ALL moving parts of the door and door hardware. NOTE: After installation, a green indicator light behind the cover will travel . • ALWAYS keep garage door in sight until the sensor beam is connected and ...
...to the full open circuit. 4. To prevent possible SERIOUS INJURY or DEATH from a closing garage door. Use insulated staples to correct). 1. INSTALLATION STEP 6 Install the Door Control Locate door control within sight of garage door, out of reach of children at a minimum height of 5 feet (1.5 m),... and away from ALL moving parts of the door and door hardware. NOTE: After installation, a green indicator light behind the cover will travel . • ALWAYS keep garage door in sight until the sensor beam is connected and ...
3255 Manual
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... NOTE: Use only standard light bulbs. Do not remove the lens. • Install up as shown. The use A19 size bulbs. 100 Watt (Max) Standard Light Bulb Release Tab Lens Hinge INSTALLATION STEP 8 Attach the Emergency Release Rope and Handle • Thread one end of... for approximately 4-1/2 minutes when power is 6 feet (1.83 m) above the floor. Secure with a match or lighter to prevent unraveling. INSTALLATION STEP 7 Install the Light • Press the release tabs on both sides of all vehicles to avoid entanglement. Overhand Knot Trolley Rope NOTICE Trolley Release...
... NOTE: Use only standard light bulbs. Do not remove the lens. • Install up as shown. The use A19 size bulbs. 100 Watt (Max) Standard Light Bulb Release Tab Lens Hinge INSTALLATION STEP 8 Attach the Emergency Release Rope and Handle • Thread one end of... for approximately 4-1/2 minutes when power is 6 feet (1.83 m) above the floor. Secure with a match or lighter to prevent unraveling. INSTALLATION STEP 7 Install the Light • Press the release tabs on both sides of all vehicles to avoid entanglement. Overhand Knot Trolley Rope NOTICE Trolley Release...
3255 Manual
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... fit into the outlet you have, contact a qualified electrician to make a permanent connection through the 7/8" hole in ANY way to install the proper outlet. and the ground wire to the following procedure. PERMANENT WIRING CONNECTION Ground Tab Green Ground Screw Ground Wire Black Wire...; Remove the attached 3-prong cord. • Connect the black (line) wire to the screw on the silver terminal; INSTALLATION STEP 9 Electrical Requirements To avoid installation difficulties, do not run the opener at this time. The opener must be in compliance with a third grounding pin. If...
... fit into the outlet you have, contact a qualified electrician to make a permanent connection through the 7/8" hole in ANY way to install the proper outlet. and the ground wire to the following procedure. PERMANENT WIRING CONNECTION Ground Tab Green Ground Screw Ground Wire Black Wire...; Remove the attached 3-prong cord. • Connect the black (line) wire to the screw on the silver terminal; INSTALLATION STEP 9 Electrical Requirements To avoid installation difficulties, do not run the opener at this time. The opener must be in compliance with a third grounding pin. If...
3255 Manual
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...an amber indicator light) transmits an invisible light beam to full open position, and the opener lights will flash 10 times. INSTALLATION STEP 10 Install The Protector System® The safety reversing sensor must be unobstructed. Extension brackets (see Accessories) are designed to avoid drilling ...shines directly into the receiving eye lens. No part of sectional garage doors without additional hardware. Either can be disabled. • Install the safety reversing sensor so beam is closing garage door: • Correctly connect and align the safety reversing sensor. Be sure ...
...an amber indicator light) transmits an invisible light beam to full open position, and the opener lights will flash 10 times. INSTALLATION STEP 10 Install The Protector System® The safety reversing sensor must be unobstructed. Extension brackets (see Accessories) are designed to avoid drilling ...shines directly into the receiving eye lens. No part of sectional garage doors without additional hardware. Either can be disabled. • Install the safety reversing sensor so beam is closing garage door: • Correctly connect and align the safety reversing sensor. Be sure ...
3255 Manual
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...the bracket against the side of three ways, as a template to elevate sensor brackets so the lenses will not support the bracket securely, wall installation is recommended. Snap into place against the wall with lag screws (not provided). • If using extension brackets or wood blocks, adjust right ... Bracket Lens Figure 2 IGWnasairldal ege WALL MOUNT (RIGHT SIDE) Fasten Wood Block to the floor with the curved arms facing the door. Install and align the brackets so the sensors will face each door track, with concrete anchors as shown in one of the track. Make sure...
...the bracket against the side of three ways, as a template to elevate sensor brackets so the lenses will not support the bracket securely, wall installation is recommended. Snap into place against the wall with lag screws (not provided). • If using extension brackets or wood blocks, adjust right ... Bracket Lens Figure 2 IGWnasairldal ege WALL MOUNT (RIGHT SIDE) Fasten Wood Block to the floor with the curved arms facing the door. Install and align the brackets so the sensors will face each door track, with concrete anchors as shown in one of the track. Make sure...
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... and white/black wires sufficiently to connect to Opener Quick-Connect Terminals Bell Wire 1. If the sending eye indicator light does not glow steadily after installation, check for an open , it receives the sender's beam. NOTE: When the invisible beam path is obstructed or misaligned while the door is already open...
... and white/black wires sufficiently to connect to Opener Quick-Connect Terminals Bell Wire 1. If the sending eye indicator light does not glow steadily after installation, check for an open , it receives the sender's beam. NOTE: When the invisible beam path is obstructed or misaligned while the door is already open...
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... 12. HARDWARE SHOWN ACTUAL SIZE Self-Threading Screw 1/4"-14x5/8" Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of angle iron as illustrated below any structural support across the top of Garage Door UP Figure 4 19 Figure 1 shows ...Screw 1/4"-14x5/8" Vertical Centerline of the door. 3. The best solution is to two or three vertical supports. Mark, drill holes and install as stamped inside the bracket. 2. A horizontal reinforcement brace should cover the height of the top panel. Secure the door bracket using the...
... 12. HARDWARE SHOWN ACTUAL SIZE Self-Threading Screw 1/4"-14x5/8" Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of angle iron as illustrated below any structural support across the top of Garage Door UP Figure 4 19 Figure 1 shows ...Screw 1/4"-14x5/8" Vertical Centerline of the door. 3. The best solution is to two or three vertical supports. Mark, drill holes and install as stamped inside the bracket. 2. A horizontal reinforcement brace should cover the height of the top panel. Secure the door bracket using the...
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..." holes and use lag screws 5/16"x1-1/2" (Not Provided) to fasten door bracket. NOTE: The door bracket may be installed on the top edge of the door if required for your installation. (Refer to one-piece doors also. • Center the door bracket on the previous page. They apply to the dotted..., STEEL, DOORS WITH GLASS PANEL, ETC.). (NOT PROVIDED) Door Bracket Nut 5/16"-18 Door Bracket For a door with no exposed framing, or for the optional installation, use 5/16"x2" carriage bolts, lock washers and nuts (not provided) or 5/16"x1-1/2" lag screws (not provided) depending on your...
..." holes and use lag screws 5/16"x1-1/2" (Not Provided) to fasten door bracket. NOTE: The door bracket may be installed on the top edge of the door if required for your installation. (Refer to one-piece doors also. • Center the door bracket on the previous page. They apply to the dotted..., STEEL, DOORS WITH GLASS PANEL, ETC.). (NOT PROVIDED) Door Bracket Nut 5/16"-18 Door Bracket For a door with no exposed framing, or for the optional installation, use 5/16"x2" carriage bolts, lock washers and nuts (not provided) or 5/16"x1-1/2" lag screws (not provided) depending on your...