Lift-master 3800C User Manual

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 NOT CLOSE unless The Protector System

and cable tension monitor are

connected and properly aligned.

■ Periodic checks of the opener are required to ensure safe operation.

■ The model number label is located behind the hinged door of your opener.

GARAGE DOOR OPENER Model 3800C

For Residential Sectional Doors With Torsion Assemblies Only

The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196

www.liftmaster.com

INTRODUCTION

Safety Symbol Review and Signal Word Review

When you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them. The hazard may come from something mechanical or from electric shock. Read the warnings carefully.

When you see this Signal Word on the following pages, it will alert you to the possibility of damage to your garage door and/or the garage door opener if you do not comply with the cautionary statements that accompany it. Read them carefully.

This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual.

Mechanical

Electrical

WARNING

Introduction 2-5

Safety symbol review and signal word review . . . . . . . .2

Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Preparing your garage door . . . . . . . . . . . . . . . . . . . . . .4

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Carton inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Hardware inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Assembly 6

Attach the collar to the motor unit . . . . . . . . . . . . . . . . . .6

Attach mounting bracket to the motor unit . . . . . . . . . . .6

Installation 7-16

Installation safety instructions . . . . . . . . . . . . . . . . . . . . .7

Position the opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Attach the emergency release rope and handle . . . . . . .8

Install the power door lock . . . . . . . . . . . . . . . . . . . . . . .8

Attach the cable tension monitor (Required) . . . . . . . . . .9

Install the control console . . . . . . . . . . . . . . . . . . . . . . .10

Install remote light . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Electrical requirements . . . . . . . . . . . . . . . . . . . . . . . . .12

Mount the battery backup unit (BBU) . . . . . . . . . . . . . .13

Install The Protector System® . . . . . . . . . . . . . . . . . .14-16

Adjustment 17-20

Program the travel limits . . . . . . . . . . . . . . . . . . . . . . . .17

Setting the force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Test the safety reversal system . . . . . . . . . . . . . . . . . . .19

Test The Protector System® . . . . . . . . . . . . . . . . . . . . . .19

Test cable tension monitor . . . . . . . . . . . . . . . . . . . . . .20

Test power door lock . . . . . . . . . . . . . . . . . . . . . . . . . . .20

To open door manually . . . . . . . . . . . . . . . . . . . . . . . . .20

Operation 21-25

Operation safety instructions . . . . . . . . . . . . . . . . . . . . .21

Using your garage door opener . . . . . . . . . . . . . . . . . .21

Using the wall-mounted control console . . . . . . . . . . . .22

Care of your opener . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Having a problem? (Troubleshooting) . . . . . . . . . . .23-24

Diagnostic chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Programming 26-28

To add or reprogram a hand-held remote control . . . . .26

To erase all codes from motor unit memory . . . . . . . . .26

3-Button remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

To add, reprogram or change

a keyless entry PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Reprogramming light or additional light . . . . . . . . . . . .28

Repair Parts 29-30

Installation parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Motor unit assembly parts . . . . . . . . . . . . . . . . . . . . . . .30

Accessories 31 Repair Parts and Service 32 Warranty 32

WARNING

CAUTION

Planning

Survey your garage area to see if any of the conditions below apply to your installation. Additional materials may be required. You may find it helpful to refer back to this page as you proceed with the installation of your opener.

Depending on your requirements, there are several installation steps which may call for materials or hardware not included in the carton.

This opener is compatible with:

• Doors that use a torsion bar, springs, and a door no more than 14' (4.2 m) high.

• 4"-6" (10 cm - 15 cm) drums, not to be used on tapered drums over 6" (15 cm).

• High lift and standard lift sectional doors up to 14' (4.2 m) high.

• Doors up to 18' wide.

• Doors up to 180 sq. ft.

• 1" (2.5 cm) torsion bar only.

• Review or inspect proposed installation area. Opener can be installed on left or right side of door. Select the side that meets the requirements listed below.

- Must have minimum of 2-1/2" (6.4 cm) between the garage wall and the center of the torsion bar.

- Must have minimum of 3" (7.6 cm) between the ceiling and the center of torsion bar.

- Must have minimum of 8" (20.3 cm) between the side garage wall (or obstruction) and the end of torsion bar.

• The torsion bar must extend at least 1" to 5" (2.5 cm to 12 cm) past the bearing plate.

• An electric outlet is required within 6' (1.8 m) of the installation area. If outlet does not exist, contact a qualified electrician.

• Depending upon garage construction, extension brackets or wood blocks may be needed to install safety reversing sensors.

• Alternate floor mounting of the safety reversing sensors will require hardware not provided.

• A model 475LMC EverChargeTMBattery Backup System is strongly recommended if there is no access door to the garage, as this opener cannot be used in conjunction with an external emergency release mechanism.

• Any gap between the floor and the bottom of the door must not exceed 1/4" (6 mm). Otherwise the safety reversal system may not work properly.

NOTE: Inspect the torsion bar while the door is raised and lowered. It is important that there is no noticeable movement up and down or left and right. If this type of movement is not corrected, life of this opener will be greatly reduced.

Motor unit

Power Door Lock

Cable Tension Monitor

Safety Reversing Sensor

Torsion Spring

Drum

Safety Reversing

Gap between floor and bottom of door must not exceed 1/4" (6 mm).

Sensor

Remote Light

Access Door

Wall-mounted Control Console

Preparing your Garage Door

Before you begin:

• Disable locks.

• Remove any ropes connected to garage door.

• Complete the following test to make sure your garage

door is balanced and is not sticking or binding:

1. Lift the door about halfway as shown. Release the door. If balanced, it should stay in place, supported entirely by its springs.

2. Raise and lower the door to see if there is any binding or sticking.

If your door binds, sticks, or is out of balance, call a trained door systems technician.

3. Verify equal cable tension on each side of door. Cable tension should remain equal during the entire travel of the door.

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 avoid malfunction and damage.

To prevent possible SERIOUS INJURY or DEATH:

• ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door may not reverse when required.

• NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, all of which are under EXTREME tension.

• Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing and operating garage door opener to avoid entanglement.

WARNING

Tools needed

During assembly, installation and adjustment of the opener, instructions will call for hand tools as illustrated below.

Sectional Door

WARNING

CAUTION

Stepladder

Drill

5/32", 3/16", 5/16" and 3/4" Drill Bits

1/4", 5/16" & 3/8" Sockets and Wrench with 6" Extension

Tape Measure

Pencil

Screwdriver

Pliers

Wire Cutters

Claw Hammer

Adjustable End Wrench

3/16" and 1/8" Hex Key Wrench

Needle Nose Pliers

Carton Inventory

Your garage door opener is packaged in one carton which contains the motor unit and the parts illustrated below. Note that accessories will depend on the model purchased. If anything is missing, carefully check the packing material.

Hardware Inventory

INSTALLATION HARDWARE

Hex Screw #14-10x1-7/8" (4) Screw #6x-1-1/4" (2) Machine Screw #6x1" (2) Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) Pan Head Screw 1/4"-20x1/2" (2) Hex Head Screw #8x1" (2)

Self Tapping Screw #10-32 (2) Drywall Anchor (2) Drywall Anchor (Screw-In) (2) Handle Rope Insulated Staples (30) Lock Template (Located Under Access Door)

Remote Control Visor Clip

Motion Detecting Control Console

Power Door Lock 2-Conductor White &

White/Black Bell Wire with Connector

SECURITY✚ 3-Button Remote Control (1)

2-Conductor Bell Wire White & White/Red

Collar with Screws

Remote Light with Hardware Bag

Cable Tension Monitor with 2-Conductor Green/White Bell Wires

Mounting Bracket

Safety Sensor Bracket (2)

Motor Unit

(2) Safety Reversing Sensors (1 Sending Eye and 1 Receiving Eye) with 2-Conductor White & White/Black Bell Wire attached

Safety Labels and Literature

ASSEMBLY STEP 1

Attach the Collar to the Motor Unit

To avoid installation difficulties, do not run the garage door opener until instructed to do so.

• Loosen the collar screws.

• Attach collar to either the left or the right side of the motor unit. Ensure that the collar is seated all the way on motor shaft until stop is reached (Figure 1).

• Position the collar so that the screws are facing up (accessible when attached to the torsion bar).

• Tighten both sides of collar screws equally to secure collar to the motor unit (12-14 ft./lbs. of torque) (Figure 2).

NOTE: For most installations the screws should be facing up for easy access.

NOTE: Do not tighten set screws until indicated.

Collar Screw

Set Screw

ASSEMBLY STEP 2

Attach Mounting Bracket to Motor Unit

• Loosely attach slotted side of mounting bracket to the same side of the motor unit as the collar, using selfthreading screws provided.

NOTE: Do not tighten until instructed. NOTE: Illustrations shown are for left side installation.

Figure 1

Figure 2

To prevent possible SERIOUS INJURY OR DEATH, the collar MUST be properly tightened. The door may NOT reverse correctly or limits may be lost due to collar slip.

WARNING

RIGHT

WRONG

Socket Wrench

HARDWARE SHOWN ACTUAL SIZE

Screw #10-32

INSTALLATION

INSTALLATION STEP 1

Position the Opener

1. Close the garage door completely.

2. Slide the opener with collar over the end of the torsion

bar. Check to make sure bracket is located on a solid surface such as wood, concrete or door/flag bracket. Snug collar screws to help assure proper alignment of operator. Mark the bracket holes. It may be necessary to cut the torsion bar if it is too long or damaged.

3. Loosen collar screws from torsion bar and remove the

opener. Drill 3/16" pilot holes at the marked locations. Drill through steel plate if needed.

4. Reinstall the opener by sliding the collar over the

torsion bar until pilot holes align with bracket. Securely tighten collar screws that attach to the torsion bar to 12-14 ft./lbs. of torque. Securely tighten both set screws firmly, without damaging the jackshaft.

5. Fasten bracket securely with 14-10x1-7/8" screws.

Tighten all mounting bracket hardware.

NOTE: The motor unit does not have to be flush to wall.

6. Use a staple to secure the antenna wire to prevent

antenna from being entangled in a door roller.

To prevent possible SERIOUS INJURY or DEATH:

• Concrete anchors MUST be used if mounting bracket into masonry.

• NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, all of which are under EXTREME tension.

• ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door might not reverse when required.

• Operator MUST be mounted at a right angle to the torsion bar to avoid premature wear on the collar.

WARNING

IMPORTANT INSTALLATION INSTRUCTIONS

To reduce the risk of SEVERE INJURY or DEATH:

WARNING

1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.

2. Install garage door opener only on properly balanced and lubricated garage door. An improperly balanced door may not reverse when required and could result in SEVERE INJURY or DEATH.

3. All repairs to cables, spring assemblies and other hardware MUST be made by a trained door systems technician BEFORE installing opener.

4. Disable all locks and remove all ropes connected to garage door BEFORE installing opener to avoid entanglement.

5 Mount emergency release handle no higher than 6 feet

(1.83 m) above floor.

6. NEVER connect garage door opener to power source until instructed to do so.

7. NEVER wear watches, rings or loose clothing while installing or servicing opener. They could be caught in garage door or opener mechanisms.

8. Install wall-mounted garage door control:

• within sight of the garage door.

• out of reach of children at minimum height of 5 feet

(1.5 m).

• away from ALL moving parts of the door.

9. Place entrapment warning label on wall next to garage door control.

10. Place manual release/safety reverse test label in plain view on inside of garage door.

11. Upon completion of installation, test safety reversal system. Door MUST reverse on contact with a 1-1/2" (3.8 cm) high object (or a 2x4 laid flat) on the floor.

WARNING

Motor unit

HARDWARE SHOWN ACTUAL SIZE

14-10x1-7/8" Hex Screw

Torsion Bar

Staple

HARDWARE SHOWN ACTUAL SIZE

Figure 1

INSTALLATION STEP 3

Install Power Door Lock

The lock is used to prevent the garage door from being manually opened once the door is fully closed.

1. Select a door roller to mount the lock above. Check for clearance. If possible select a roller on the same side of the door as the motor unit. The second roller up from the bottom is ideal in most installations.

2. Ensure rail surface is clean and adhere lock template with bottom edge just above the highest point on the roller (Figure 1).

3. Drill holes as marked on the template.

4. Fasten power door lock to the outside of the garage door track with hardware provided.

5. Run bell wire up wall to motor unit. Use insulated staples to secure wire in several places.

6. Plug connector into the motor unit (Figure 2).

NOTE: Lock must be mounted within 10' of the power head.

To prevent possible SERIOUS INJURY or DEATH from a falling garage door:

• If possible, use emergency release handle to disengage door ONLY when garage door is CLOSED. Weak or broken springs or unbalanced door could result in an open door falling rapidly and/or unexpectedly.

• NEVER use emergency release handle unless garage doorway is clear of persons and obstructions.

WARNING

INSTALLATION STEP 2

Attach the Emergency Release Rope and Handle

• Thread one end of the rope through the hole in the top of the red handle so “NOTICE” reads right side up as shown. Secure with an overhand knot at least 1" (2.5 cm) from the end of the rope to prevent slipping.

• Thread the other end of the rope through the loop in the emergency release cable.

• Adjust rope length so the handle is no higher than 6' (1.83 m) above the floor. Secure with an overhand knot.

NOTE: If it is necessary to cut the rope, heat seal the cut end with a match or lighter to prevent unraveling.

Figure 2

WARNING

Motor Unit

Emergency Release Cable

Overhand Knot

Emergency Release Handle

Overhand Knot

Rope

Approx. 3" (7.6 cm)

132A2505

TOP

DRILL 5/16"

DRILL 3/4"

DRILL 5/16"

Garage Door Track

TOP

DRILL 5/16"

DRILL 3/4"

DRILL 5/16"

132A2505

Lock Template

Roller

Lock Screw 1/4-20 x 1/2" (2)

Staples

Figure 1

HARDWARE SHOWN ACTUAL SIZE

Figure 3

INSTALLATION STEP 4

Attach the Cable Tension Monitor (Required)

This opener comes standard with the cable tension monitor. It is supplied as a device to monitor the cables for ANY slack that may occur and will reverse the door when excessive slack is detected, eliminating service calls.

The cable tension monitor must be connected and properly installed before the garage door opener will move in the down direction.

NOTE: The cable tension monitor is shipped for left side installation.

NOTE: It is preferred that the cable tension monitor be installed on the same side of the door as the opener. If required, it can be mounted on the opposite side of door. Remove the snap-ring holding the roller in place and reassemble it on the opposite side of the cable tension monitor.

1. Position the cable tension monitor as shown (Figures 1 and 2). The cable tension monitor should be located as close to the drum as possible.

NOTE: There must be no obstructions in the installation area that prevent the cable tension monitor or the cable itself from closing completely when slack is detected.

2. Make sure cable tension monitor is located over a wood support member.

NOTE: If the cable tension monitor can not be mounted into wood with the lag screws provided, it can be mounted into 1/2" or greater drywall using the wall anchors (2) and the #8 hex head screws (2) provided in the hardware bag.

3. Mark and drill 3/16" pilot holes for screws (pilot holes are not required for anchors).

4. Attach the cable tension monitor to the wall using the hardware provided. Make sure that the roller is on top of the cable.

5. Run bell wire to motor unit. Use insulated staples to secure wire in several places.

6. Connect bell wire to the green quick-connect terminals (polarity is not important) (Figure 3).

NOTE: Cable must have tension through entire travel. Make sure there is no slack in cable on opposite side of garage door during normal operation. If this condition exists, adjust cables as required.

Figure 2

Opener

1/8"-1/4" (3 mm-6 mm)

Drum

Cable

2"-6" (5 cm15 cm)

With Door Closed Preferred Orientation

Cable

3/4" Min. (18 mm Min.)

Torsion Bar

Drum

Cable Tension Monitor

Cable Tension Monitor Roller

WHT/GRN

Wall

Cable Tension Monitor

7/16" (11mm)

Strip wire 7/16" (11mm)

#8 Hex Head Screw (2)

Screw #6 (2) Wall Anchor (2)

Staples

To release wire, push in tab with screwdriver tip

INSTALLATION STEP 5

Install the Control Console

Locate control console within sight of the door at a minimum height of 5 feet (1.5 m) where small children cannot reach, and away from moving parts of the door and door hardware. The installation surface must be smooth and flat. If installing into drywall (Figure 1), drill 5/32" holes and use anchors provided. For pre-wired installations (as in new home construction), it may be mounted to a single gang box (Figure 2). NOTE: After

installation and the power head is plugged in, a green or amber indicator light behind the cover will indicate proper connection. If not lit, the Lock and Light features will not function (reverse wires to correct).

1. Strip 7/16" (11 mm) of insulation from one end of bell wire and connect to terminals on back of control console by color: white wire to WHT and white/red wire to the RED (Figure 3).

2. Remove cover by gently prying at slot in top of the cover with a small flat head screwdriver. Fasten with 6ABx1-1/4" self-tapping screws (drywall installation) or 6-32x1" machine screws (into gang box) as follows:

• Drill and install bottom screw, allowing 1/8" (3 mm)

to protrude above wall surface.

• Position bottom of control console on screw head and

slide down to secure. Adjust screw for snug fit.

• Install top screw with care to avoid cracking plastic

housing. Do not over tighten.

• Insert top tabs and snap on cover.

NOTE: The push bar may stick if the control console is not mounted on a smooth surface. If a click is not heard when pressing the push bar, loosen the two mounting screws or relocate the control console to a smoother surface.

3. (Standard installation only) Run bell wire up wall and along ceiling to motor unit. Use insulated staples to secure wire in several places. Do not pierce wire with a staple, creating a short or open circuit.

4. Strip 7/16" (11 mm) of insulation from end of bell wire. Connect bell wire to the quick-connect terminals as follows: white to white and white/red to red (Figure 4).

5. Use tacks or staples to permanently attach entrapment warning label to wall near control console, and manual release/safety reverse test label in a prominent location on inside of garage door.

NOTE: DO NOT connect the power and operate the opener at this time. The door will travel to the full open position but will not return to the close position until the sensor beams are connected and properly aligned. See Protector System Instructions beginning on page 14.

To prevent possible SERIOUS INJURY or DEATH from electrocution:

• Be sure power is not connected BEFORE installing control console.

• Connect ONLY to 24 VOLT low voltage wires.

To prevent possible SERIOUS INJURY or DEATH from a closing garage door:

• Install control console 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 door.

• NEVER permit children to operate or play with control console push buttons or remote controls.

• Activate door ONLY when it can be seen clearly, is properly adjusted, and there are no obstructions to door travel.

• ALWAYS keep garage door in sight until completely closed. NEVER permit anyone to cross path of closing garage door.

Figure 4

WARNING

HARDWARE SHOWN ACTUAL SIZE

Figure 1

Figure 3

Figure 2

WARNING

Screw 6ABx1-1/4" (standard installation)

Screw 6-32x1" (pre-wired)

STANDARD WALL MOUNT

To Replace Insert Top Ta bs First

Push Bar Cover

Top Mounting Hole

Control Console Terminal Screws

Bottom Mounting Hole

(BACK VIEW)

ON OFF

Detector Switch

Bell Wire

PRE-WIRED INSTALLATION

To Replace Insert Top Ta bs First

Push Bar

Cover

Insulated Staples

Drywall Anchors

Bell Wire

7/16" (11 mm)

Detector

Switch

Strip wire 7/16" (11 mm)

ON OFF

Control Console Connections

WHT/RED

WHT

To release wire, push in tab with screwdriver tip

INSTALLATION STEP 6

Install Remote Light

The remote light is designed to plug directly into a standard 120V outlet.

1. Install the hinge and latch clips. Clips slide in between the metal plate and the plastic housing on each side of the light base (Figure 1).

2. Select appropriate location on the ceiling to mount the light wihin 6' (1.8 m) of an electrical outlet so that the cord and light are away from moving parts.

3. Install the mounting plate with the screws provided. Leave 1/8" (3.1 mm) of thread exposed between the ceiling mount plate and the screw thread.

NOTE: If installing remote light on drywall and a ceiling joist can not be located, use wall anchors provided. No pilot hole is required for wall anchors.

4. Determine the length of power cord needed to reach the nearest outlet. Wind any excess cord around cord retainer on the top side of the light base.

5. Install the light base by pushing onto the screws and turning the base clockwise to lock the light in place.

6. Install two Type A19 incandescant or compact fluorescent bulbs. 100 watt maximum per bulb, 200 watts total.

7. Install the light lens by hooking one end of the lens over the hinge and pressing up on the other end to latch into place (Figure 3).

8. Plug in the light to outlet.

NOTE: Light will not operate until the unit is activated.

To prevent possible OVERHEATING of the light socket,

• DO NOT use short neck or specialty light bulbs.

• DO NOT use halogen bulbs. Use ONLY incandescent or compact fluorescent bulbs

WARNING

Figure 2

Figure 1

Figure 3

HARDWARE SHOWN ACTUAL SIZE

IMPORTANT SAFETY INSTRUCTIONS

To reduce the risk of SEVERE INJURY or DEATH:

WARNING

1. This portable luminaire has a polarized plug (one blade is wider than the other) as a feature to reduce the risk of electric shock.

2. This plug will fit in a polarized outlet ONLY one way.

3. If the plug does not fit fully in the outlet, reverse the plug.

4. If it still does not fit, contact a qualified electrician.

5. NEVER use with an extension cord unless plug can be fully inserted.

6 DO NOT alter the plug.

7. Light is intended for ceiling mount and indoor applications ONLY.

WARNING

CAUTION

Latch Clip

Plastic Housing

Cord Retainer

Light Clip Screw

Metal Plate

Light Clip Screw

Wall Anchors

Mounting Plate

Light Base

Hinge Clip

Light Clip Screw #4-20 X 7/16" (2)

Wall Anchor (2)

Screw #6x1" (2)

Screws

Light Lens

INSTALLATION STEP 7

Electrical Requirements

To avoid installation difficulties, do not run the opener at this time.

To reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will only fit into a grounding type outlet. If the plug doesn't fit into the outlet you have, contact a qualified electrician to install the proper outlet.

If permanent wiring is required by your local code, refer to the following procedure.

To make a permanent connection through the 7/8" hole in the back of the motor unit (according to local code):

• Remove the opener from the torsion bar, remove cover screws and set the cover aside.

• Remove the attached green ground terminal.

• Cut black and white wires and strip away 1/2" (1.3 cm) of insulation, 3" (7.6 cm) before spade terminals.

• Remove the power cord from unit.

• Install a 90oconduit or flex cable adapter to the 7/8" hole. Reinstall opener to torsion bar.

• Run wires through conduit, cut to proper length and strip insulation.

• Attach with wire nuts provided. Wire nuts to be installed as indicated in Figure 1.

• Properly secure wire under plastic ties so that wire does not come in contact with moving parts.

• Reinstall the cover.

To avoid installation difficulties, do not run the opener at this time.

To prevent possible SERIOUS INJURY or DEATH from electrocution or fire:

• Be sure power is not connected to the opener, and disconnect power to circuit BEFORE removing cover to establish permanent wiring connection.

• Garage door installation and wiring MUST be in compliance with all local electrical and building codes.

• NEVER use an extension cord, 2-wire adapter, or change plug in any way to make it fit outlet. Be sure the opener is grounded.

WARNING

PERMANENT WIRING CONNECTION

RIGHT

WRONG

Flexible conduit

Green Ground

Ground Tab

Screw

Ground Wire

Black Wire From Power Cord

White Wire From Power Cord

PERMANENT WIRING CONNECTION

90˚ Connector

Green Wire

Black Wire

White Wire

INSTALLATION STEP 8

Mount the Battery Backup Unit (BBU) (not provided)

If the optional 475LMC battery backup unit is part of this installation it should be installed at this time.

• The BBU can be mounted to either the ceiling or a wall within 3' (.9 m) of the motor unit.

• Position the BBU as desired to a structural support (ceiling joist or wall stud).

• Attach the BBU to the support using the mounting holes on either side of the BBU.

• Secure the BBU using the 1-1/2" lag screws (2) provided with the BBU unit.

• Connect the BBU cord into the connector on the bottom of the motor unit.

• Follow all instructions included with the 475LMC unit to test for proper operation and testing of the BBU.

475LMC Battery Backup Unit

BBU Cord

Connector

Facing the door from inside the garage

INSTALLATION STEP 9

Install The Protector System

The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. This is a required safety device and cannot be disabled.

IMPORTANT INFORMATION ABOUT THE SAFETY REVERSING SENSOR

When properly connected and aligned, the safety reversing sensor will detect an obstacle in the path of its electronic beam. The sending eye (with an amber indicator light) transmits an invisible light beam to the receiving eye (with a green indicator light). If an obstruction breaks the light beam while the door is closing, the door will stop and reverse to full open position, and the opener lights will flash 10 times.

The units must be installed inside the garage so that the sending and receiving eyes face each other across the door, no more than 6" (15 cm) above the floor. Either can be installed on the left or right of the door as long as the sun never shines directly into the receiving eye lens.

The mounting brackets are designed to clip onto the track of sectional garage doors without additional hardware.

If it is necessary to mount the units on the wall, the brackets must be securely fastened to a solid surface such as the wall framing. Extension brackets (see Accessories) are available if needed. If installing in masonry construction, add a piece of wood at each location to avoid drilling extra holes in masonry if repositioning is necessary.

The invisible light beam path must be unobstructed. No part of the garage door (or door tracks, springs, hinges, rollers or other hardware) may interrupt the beam while the door is closing.

Be sure power is not connected to the garage door opener BEFORE installing the safety reversing sensor.

To prevent SERIOUS INJURY or DEATH from a closing garage door:

• Correctly connect and align the safety reversing sensor. This required safety device MUST NOT be disabled.

• Install the safety reversing sensor so beam is NO HIGHER than 6" (15 cm) above garage floor.

WARNING

Safety Reversing Sensor 6" (15 cm) max. above floor

Invisible Light Beam Protection Area

Safety Reversing Sensor 6" (15 cm) max. above floor

INSTALLING THE BRACKETS Be sure power to the opener is disconnected. Install

and align the brackets so the safety reversing sensors will face each other across the garage door, with the beam no higher than 6" (15 cm) above the floor. They may be installed in one of three ways,as follows.

Garage door track installation (preferred) (Figure 1):

• Slip the curved arms over the rounded edge of each door track, with the curved arms facing the door. Snap into place against the side of the track. It should lie flush, with the lip hugging the back edge of the track, as shown in Figure 1.

If your door track will not support the bracket securely, wall installation is recommended.

Wall installation (Figure 2 and 3):

• Place the bracket against the wall with curved arms facing the door. Be sure there is enough clearance for the sensor beam to be unobstructed.

• If additional depth is needed, an extension bracket (see Accessories) or wood blocks can be used.

• Use bracket mounting holes as a template to locate and drill (2) 3/16" diameter pilot holes on the wall at each side of the door, no higher than 6" (15 cm) above the floor.

• Attach brackets to wall with lag screws (not provided).

• If using extension brackets or wood blocks, adjust right and left assemblies to the same distance out from the mounting surface. Make sure all door hardware obstructions are cleared.

Floor installation (Figure 4):

• Use wood blocks or extension brackets (see Accessories) to elevate sensor brackets so the lenses will be no higher than 6" (15 cm) above the floor.

• Carefully measure and place right and left assemblies at the same distance out from the wall. Be sure all door hardware obstructions are cleared.

• Fasten to the floor with concrete anchors as shown.

HARDWARE SHOWN ACTUAL SIZE

Figure 1

Figure 2

Figure 3

(Provided with Extension Bracket)

DOOR TRACK MOUNT (RIGHT SIDE)

Door Track

Lip

Sensor Bracket

WALL MOUNT (RIGHT SIDE)

Fasten Wood Block to Wall with Lag Screws (Not Provided)

WALL MOUNT (RIGHT SIDE)

Extension Bracket (See Accessories)

Lens

Inside

arage

all

Inside

arage

all

Indicator Light

Lens

Indicator Light

Lens

(Provided with Extension Bracket)

Indicator Light

Sensor Bracket

Lag Screws (Not Provided)

Sensor Bracket

Carriage Bolt 1/4"-20x1/2"

Wing Nut 1/4"-20

Staples

Figure 4

Inside

arage

all

FLOOR MOUNT (RIGHT SIDE)

Attach with Concrete Anchors (Not Provided)

Lens

Indicator Light

Sensor Bracket

Quick-Connect Terminals

WHT/BLK

WHT

WHT/RED

WHT

Sensor Connections

To Power Door Lock

To CableTension Monitor

To Control Console

Figure 5

Figure 6

MOUNTING AND WIRING THE SAFETY REVERSING SENSORS

• Slide a 1/4"-20x1/2" carriage bolt head into the slot on each sensor. Use wing nuts to fasten safety reversing sensors to brackets, with lenses pointing toward each other across the door. Be sure the lens is not obstructed by a bracket extension (Figure 5).

• Finger tighten the wing nuts.

• Run the wires from both safety reversing sensors to the opener. Use insulated staples to secure wire to wall and ceiling.

• Strip 7/16" (11 mm) of insulation from each set of wires. Separate white and white/black wires sufficiently to connect to the opener quick-connect terminals: white to white and white/black to grey (Figure 6).

ALIGNING THE SAFETY REVERSING SENSORS

• Plug in the opener. The indicator lights in both the

sending and receiving eyes will glow steadily if wiring connections and alignment are correct.

The sending eye amber indicator light will glow regardless of alignment or obstruction. If the green indicator light in the receiving eye is off, dim, or flickering (and the invisible light beam path is not obstructed), alignment is required.

• Loosen the sending eye wing nut and readjust, aiming directly at the receiving eye. Lock in place.

• Loosen the receiving eye wing nut and adjust the safety reversing sensor until it receives the sender’s beam. When the green indicator light glows steadily, tighten the wing nut.

TROUBLESHOOTING THE SAFETY REVERSING SENSORS

1. If the sending eye indicator light does not glow steadily after installation, check for:

• Electric power to the opener.

• A short in the white or white/black wires. These can occur at staples, or at opener connections.

• Incorrect wiring between safety reversing sensors and opener.

• A broken wire.

2. If the sending eye indicator light glows steadily but the receiving eye indicator light doesn't:

• Check alignment.

• Check for an open wire to the receiving eye.

3. If the receiving eye indicator light is dim, realign either sensor.

NOTE: When the invisible beam path is obstructed or misaligned while the door is closing, the door will reverse. If the door is already open, it will not close. The opener lights will blink 10 times. (If bulbs are not installed, 10 clicks can be heard.) See page 11.

Wing Nut 1/4"-20

Carriage Bolt 1/4"-20x1/2"

Lens

Connect Wire to Quick-Connect Terminals

Bell Wire

Motor unit

Power Door Lock

Safety Reversing Sensor

enso

Invisible Light Beam Protection Area

Bell Wire

Safety Reversing Sensor

Senso

To prevent damage to vehicles, be sure fully open door provides adequate clearance.

WARNING

Figure 3

Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

• NEVER learn forces or limits when door is binding or sticking. Repair door first.

• Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system.

• After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1-1/2" high (3.8 cm) object (or 2x4 laid flat) on floor.

WARNING

ADJUSTMENT STEP 1

Program the Travel Limits

Travel limits regulate the points at which the door will stop when moving up or down. Follow the steps below to set the limits.

To program the travel limits:

Adjust the position of the door by using the black and purple buttons. Black moves the door UP (open) and purple moves the door DOWN (close).

1. Setting the UP position: Press and hold the black

button until the yellow indicator light starts flashing slowly then release.

2. Push and hold the black button until the door reaches the desired UP (open) position (Figure 2).

NOTE: Check to be sure the door opens high enough for your vehicle.

3. Push the remote control or door control (Figure 3). This sets the UP (open) limit and begins closing the door.

NOTE: Excessive movement of the motor unit will cause premature wear. See Troubleshooting section.

4. Immediately when the door begins to move down, press and release either the black or purple button. This will stop the door.

5. Setting the DOWN position: Push and hold the purple button until the door reaches the desired DOWN (closed) position (Figure 4).

6. Once the door is closed, if there appears to have too much pressure on the door, you may toggle the door back and forth using the black and purple buttons to reach the desired closed position.

7. Push the remote control or the door control (Figure 3). This sets the DOWN (close) limit and should bring the door to the open position.

• If the opener is not stopping exactly where you

would like it, repeat steps 1 through 8 and program the limits again.

• When the unit stops in both the desired up (open)

and down (close) positions, proceed to

Adjustment Steps 2, Setting the Force.

Figure 1

Purple Button

Indicator Light

Black Button

WARNING

CAUTION

Figure 2

BLACK

Push and hold until the door is at desired UP position

Figure 4

BLACK

Push either button to stop door at desired DOWN position

PURPLE

ADJUSTMENT STEP 2

Setting the Force

The force setting button is located on the front panel. The force setting measures the amount of force required to open and close the door.

1. Locate the purple button on the unit (Figure 1).

2. Push the purple button twice to enter unit into Force

Adjustment Mode (Figure 2). The LED (Indicator Light) will flash quickly.

3. Push the remote control or control console (Figure 3).

The door will travel to the DOWN (close) position. Push the remote control or control console again, the door will travel to the UP (open) position. Push the remote control or control console a third time to send the door to the DOWN (close) position.

The LED (Indicator Light) will stop flashing when the force has been learned.

The unit has learned the forces required to open and close your door.

The door must travel through a complete cycle, UP and DOWN, in order for the force to be set properly. If the unit cannot open and close your door fully, inspect your door to insure that it is balanced properly and is not sticking or binding. See page 4, “Preparing your

garage door.”

Figure 3

Figure 2

Figure 1

Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

• NEVER learn forces or limits when door is binding or sticking. Repair door first

• Too much force on garage door will interfere with proper operation of safety reversal system.

• After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1-1/2" high (3.8 cm) object (or 2x4 laid flat) on floor.

WARNING

Purple Button

Indicator Light

Black Button

Push Purple button twice to enter unit into Force

Adjustment Mode

BLACK

PURPLE

ADJUSTMENT STEP 3

Test the Safety Reversal System

TEST

• With the door fully open, place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on the floor, centered under the garage door.

• Operate the door in the down direction. The door must reverse on striking the obstruction. Upon successful safety reversal test proceed to Adjustment Step 4.

ADJUST

• If the door stops on the obstruction, it is not traveling far enough in the down direction. Complete Adjustment Steps 1 and 2 Programming the Limits and Forces.

• Repeat the test.

• When the door reverses on the 1-1/2" (3.8 cm) board (or 2x4 laid flat), remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment.

• If the unit continues to fail the Safety Reverse Test, call for a trained door systems technician.

IMPORTANT SAFETY CHECK:

Test the Safety Reverse System after:

• Each adjustment of limits, or force controls.

• Any repair to or adjustment of the garage door (including springs and hardware).

• Any repair to or buckling of the garage floor.

• Any repair to or adjustment of the opener.

ADJUSTMENT STEP 4

Test The Protector System

• Press the remote control push button to open the door.

• Place the opener carton in the path of the door.

• Press the remote control push button to close the door. The door will not move more than an inch, and the opener lights will flash.

The garage door opener will not close from a remote if the indicator light in either sensor is off (alerting you to the fact that the sensor is misaligned or obstructed).

If the opener closes the door when the safety reversing sensor is obstructed, do not operate the door. Call for a trained door systems technician.

Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

• Safety reversal system MUST be tested every month.

• If one control (force or travel limits) is adjusted, the other control may also need adjustment.

• After ANY adjustments are made, the safety reversal system MUST be tested. Door MUST reverse on contact with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on the floor.

WARNING

Without a properly installed safety reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

WARNING

1-1/2" (3.8 cm) board (or a 2x4 laid flat)

WARNING

Safety Reversing Sensor

ADJUSTMENT STEP 5

Test Cable Tension Monitor

If your cable tension monitor has been activated the LED will blink 9 times.

ADJUSTMENT STEP 6

Test Power Door Lock

TEST

• With the door fully closed, the power door lock bolt should be protruding through the track.

• Operate the door in the open direction. The power door lock should retract before the door begins to move.

• Operate the door in the down direction. When the door reaches the fully closed position, the power door lock should automatically activate to secure the door.

NOTE: If the power door lock does not function, the lock can be manually released by sliding the manual release handle to the open position.

ADJUSTMENT STEP 7

To Open the Door Manually

Disengage door lock before proceeding. The door should be fully closed if possible. Pull down on the emergency release handle and lift the door manually. To reconnect the door to the opener, pull down the emergency release handle straight down a second time. The door will reconnect on the next UP or DOWN operation.

Test the emergency release:

• Make sure the garage door is closed.

• Pull the emergency release handle. The garage door should then be able to be opened manually.

• Return the door to the closed position.

• Pull the emergency handle a second time.

• Reconnect the door to the opener.

To prevent possible SERIOUS INJURY or DEATH from a falling garage door:

• NEVER use emergency release handle unless garage doorway is clear of persons and obstructions.

WARNING

Emergency Release Handle

Power Door Lock

Manual Release

Lock Bolt “Locked”

+ 44 hidden pages

Lift-master 3800C User Manual

INTRODUCTION

Safety Symbol Review and Signal Word Review

TABLE OF CONTENTS

Planning

Preparing your Garage Door

Tools needed

Carton Inventory

Hardware Inventory

INSTALLATION

MOUNTING AND WIRING THE SAFETY REVERSING SENSORS