Linear LDCO800 installation instructions For Sectional Type Doors, Install the Header Bracket

LINEAR LLC (760) 438-7000 USA & Canada (800) 835-5666 & (800) 421-1587

3 Locate the Header Bracket Position

1 Close the door.

MARKING THE CENTERLINE MARK THE CENTERLINE

7 Install the Wall Station

  WARNING 

9 Install the Door Bracket and Door Arm

1 Fully close the door. Hold the door bracket against the INSTALLING THE DOOR BRACKET

MODEL LDCO800

Toll Free FAX (800) 468-1340 www.linearcorp.com

2 From inside the garage, use a pencil to mark the

vertical centerline of the door on the header wall and

on the top panel of the door.

OF THE DOOR ON THE

HEADER AND THE TOP

DOOR PANEL

Children operating or playing with a garage door operator can injure themselves or others. The garage door could cause serious injury or death. Do not allow children to operate the remote control(s) or

inside of the door’s top panel. Align the top edge of the		CAUTION! LIGHTWEIGHT DOORS NOT
bracket 2” to 4” below the top edge of the door; or, if	DOOR	DESIGNED FOR USE WITH A GARAGE DOOR
	BRACKET	OPENER MUST BE EQUIPPED WITH A DOOR
there is a structural support across the top of the door,
		REINFORCEMENT KIT (CHECK WITH THE

BELT-DRIVE OR CHAIN-DRIVE

DC MOTOR GARAGE DOOR OPERATOR

INSTALLATION INSTRUCTIONS

3	Examine the area above the center of the door on the
	door header wall for a header bracket mounting location.
4	Open the door to the high-rise point (the point where
	the top edge of the door is highest above the floor) and

the wall station. Install the wall station out of reach of children and away from all moving parts of the door. The door must be clearly visible from the wall station. A moving garage door could injure someone under it. Only activate the door when it is properly adjusted, when it can be seen clearly and when there are no obstructions to the door travel.

place the top edge of the bracket directly below the	GARAGE DOOR MANUFACTURER)
		ALIGN THE DOOR BRACKET
support. Align the vertical centerline drawn on the door
		ON THE CENTERLINE 2" TO 4"
with the center of the bracket. See the figure for details.	DOOR	BELOW THE TOP EDGE
Mark the left and right holes of the bracket.	STRUCTURAL	OF THE DOOR, OR DIRECTLY
		BELOW ANY DOOR
2 Drill ¼” holes at marks and insert two ¼-20 x 2” carriage	SUPPORT
		STRUCTURAL SUPPORT

For Sectional Type Doors

IMPORTANT SAFETY NOTES

Please read the instructions carefully! This garage door	THE FOLLOWING FORMATS ARE USED FOR
operator is designed to provide safe and reliable service	SAFETY NOTES IN THESE INSTRUCTIONS.
if installed and tested as described in these instructions.
	WARNING
A garage door is the largest mechanical appliance in a
residence. Care must be taken to prevent injury or death	This type of warning note is used to indicate
during installation and operation of the garage door and	possible mechanical hazards that may cause
garage door operator.	serious injuries or death.

measure the distance to the floor.

5 Close the door and use a pencil to mark the header

wall 1” above the measured high-rise point.

�NOTE: In some installations, the header bracket location will be higher than the door header. This will require adding a 2x4 (or larger) cross piece to the wall studs to provide a mounting location for the header bracket. Use lag screws (not supplied) to attach the 2x4 to the studs.

6On doors with low headroom, the header bracket can be attached to the ceiling up to 6” back from the header wall (see next step).

MARKING ABOVE THE HIGH-RISE POINT

MARK HEADER	HIGH-RISE
1" ABOVE
	POINT

DOOR

�NOTE: 22 AWG 2-conductor wall station and safety beam wire is supplied with the operator, Use this wire or the installation’s pre-wiring. For additional wire, contact Linear for information regarding the 24-pack Model HAE00009 wire and wire clip kit.

�UL NOTE: All low voltage Class 2 cable used with this operator must be UL Listed Type CL2, CL2P, CL2R, or CL2X or other cable with equivalent or better electrical, mechanical, and flammability ratings.

1	Strip back ½” of insulation and connect a wire to each
	of the two terminals on the back of the wall station.
2	Use the screws provided to mount the wall station near

CONNECTING AND LOCATING THE WALL STATION

CONNECT PUSHBUTTON WIRES

TO WALL STATION'S TERMINALS

MOUNT WALL STATION

AT LEAST 5 FEET ABOVE

THE FLOOR LEVEL

MOUNTING THE WALL STATION	USE MACHINE SCREWS
USE WOOD SCREWS	WHEN MOUNTING TO

	bolts (not supplied) from outside of door through the	DRILL TWO 1/4" PILOT HOLES
		USE TWO 1/4-20 x 2" CARRIAGE BOLTS AND
	door bracket.	NUTS (NOT SUPPLIED) TO ATTACH THE DOOR BRACKET
3	Secure door bracket with two ¼-20 keps nuts (not	CONNECTING THE DOOR ARM TO THE DOOR BRACKET
	supplied). Tighten with a 7/16” socket.
4	Slide the 5/16” x 1-3/8” clevis pin through one hole on		CONNECT
	door bracket; then the single hole on the curved door arm;	INSTALL
			SINGLE-HOLE
	then through the other hole on the door bracket. Secure	HITCH PIN	END OF
			DOOR ARM
	the clevis pin with the hitch pin.
		CURVED
5 Insert the single hole end of the straight door arm into
		DOOR
	the slot in the trolley. Slide the 1-1/8” clevis pin through	ARM
		1-3/8"
	the hole and secure it with a hitch pin.
		CLEVIS
6 Flip the trolley release lever to disconnect the trolley.		PIN

WARNING	CAUTION
This type of warning note is used to indicate	This type of warning note is used to indicate
possible electrical shock hazards that may	the possibility of damage to the garage door or
cause serious injuries or death.	garage door operator.

IMPORTANT INSTALLATION SAFETY INSTRUCTIONS

  WARNING 

TO REDUCE THE RISK OF SEVERE INJURY OR DEATH TO PERSONS, REVIEW

THESE INSTALLATION SAFETY STEPS BEFORE PROCEEDING

1	READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS.
2	Install only on a properly balanced garage door. An improperly balanced door could result in severe
	injury or death. Repairs to cables, spring assemblies, and other hardware must be made by a qualified
	service person before installing the operator.
3	Use this operator only with sectional overhead doors no more than 10 ft. tall.

4 Install the Header Bracket

Attaching the Header Bracket to the Wall

1 Hold the header bracket on the center line drawn above the door with the bottom edge of the bracket on the line marked above the high-rise point.

2Use a pencil to mark the two bracket holes.

3Drill two 3/16” pilot holes about 2” deep.

4Use a ½” socket to fasten the bracket with two 5/16” x 2” lag screws.

Attaching the Header Bracket to the Ceiling

�NOTE: On a finished ceiling, be sure there is a joist to fasten to under the sheetrock where the header bracket will be located (use a stud finder). If there is none, install a 2x4 cross piece between the two closest joists to fasten the header bracket onto.

1	Extend the center line drawn on the header wall along
	the ceiling.
2	Hold the bracket on the center line with the edge of the

ATTACHING THE HEADER BRACKET
1/2" SOCKET	CENTERLINE OF DOOR
ATTACH HEADER
BRACKET WITH
TWO 5/16" x 2"	1 INCH
LAG SCREWS
	HIGH-RISE POINT
	OF DOOR

ATTACHING THE HEADER BRACKET TO THE CEILING

NO MORE THAN 6 INCHES

CENTERLINE OF DOOR

	an access door at a minimum height of five feet. SEE
	IMPORTANT WARNING ABOVE!
3	For non-prewired installations, route the wire to
	the back of the operator. Use insulated staples (not
	supplied) to secure the wire. Staples must straddle
	both wires to avoid electrical shorts.
4	Cut the wall station wire about 6” longer than needed to
	reach the operator terminals. Strip back ½” of insulation.
5	Connect either wire to the operator’s PUSHBUTTON
	terminal and the other wire to the operator’s COMMON
	terminal.
6	Apply the User Safety Instruction Label to the wall next
	to the wall station. Use staples or tacks to help the
	label remain in place over time.
�IMPORTANT! DO NOT PLUG THE OPERATOR IN AT
	THIS TIME! More installation is required.

	WHEN MOUNTING	A SINGLE-GANG BOX
ROUTE WIRE	DIRECTLY TO WALL
THROUGH
SLOT IN
CASE
	PUT HOLE
	PLUGS IN
	TO HIDE
	SCREWS

CONNECTING THE WIRES TO OPERATOR

CONNECT WALL STATION WIRES
TO PUSHBUTTON AND COMMON
TERMINALS (EITHER WIRE	WIRES TO
TO EITHER TERMINAL)
	WALL STATION

PUSHBUTTO N COMMON

7 Rotate the curved door arm upward to meet the	CONNECTING THE DOOR ARM TO THE TROLLEY
straight door arm connected to the trolley. Align the
two door arms so that the holes in both arms overlap.	TROLLEY
�NOTE: The straight door arm should be slightly angled
toward the operator head.	SLIDE IN THE
CONNECTING DOOR ARMS
	1-1/8" CLEVIS PIN
1 Line up door arms until trolley is positioned as shown.	INSTALL THE
Connect the arms together using two 5/16-18 x 1” bolts
	HITCH PIN
inserted in the highest and lowest matching holes,
secure the bolts with two 5/16” keps nuts, tighten with	STRAIGHT DOOR ARM
a ½” socket.
	CONNECTING THE DOOR ARMS
	4" TO 6"
	LINE UP DOOR ARMS UNTIL TROLLEY
	IS POSITIONED AS SHOWN

4	Disable all locks and remove all ropes connected to the garage door before installing the operator.
	Ropes connected to a garage door can cause entanglement and death.
5	If possible, install door operator 7 feet or more above the floor with the manual release handle
	mounted 6 feet above the floor.
6	Do not connect the operator to the power source until instructed to do so.
7	Locate the wall station within sight of the door at a minimum height of 5 feet so that small children

	bracket no further than 6” from the header wall.
3	Use a pencil to mark the two bracket holes.
4	Drill two 3/16” pilot holes about 2” deep.
5	Use a ½” socket to fasten the bracket with two
	5/16” x 2” lag screws.

DOOR

HEADER

WALL

FOR LOW HEADROOM

DOOR INSTALLATIONS ONLY

8 Install the Safety Beam

  WARNING 

Persons, particularly children, could be killed by a closing garage door without a properly installed and adjusted safety beam optical

ASSEMBLING THE BRACKETS

ASSEMBLE BRACKETS

WITH 1/4-20 x 3/4" BOLTS

AND KEPS NUTS

2" TO 4"

10 Connect the Operator to Power Source

	cannot reach it. Locate the wall station away from all moving parts of the door.
8	Install the User Safety Label on the wall adjacent to the wall station.
9	Upon completion of the installation, the door must reverse when it comes in contact with a 1-1/2” high
	object (or a 2x4 laid flat at the center of the door) on the floor and when the infrared safety beam is blocked.
10 Do not wear watches, rings or loose clothing while installing or servicing an operator. Jewelry or
	loose clothing can be caught in the mechanism of the garage door or the operator.
11 DISCONNECT THE ELECTRIC POWER FROM THE GARAGE DOOR OPERATOR BEFORE MAKING ANY
	REPAIRS OR REMOVING THE COVER.

5 Connect the Rail to the Header Bracket

1	Place assembled operator on the empty carton on the	CONNECTING THE RAIL
	floor with rail towards the door.	2-3/8" LONG
2	Insert the end of the rail into header bracket.	CLEVIS PIN
		INSERT HITCH PIN
3	Insert the 5/16” x 2-3/8” clevis pin through header
		INTO CLEVIS PIN
	bracket and rail.

4 Secure the clevis pin with the hitch pin.

obstacle sensing system.

�NOTE: The safety beam’s infrared light beam must not be obstructed by the door, or by any part of the door hardware. Use wooden spacers between the beam brackets and wall if necessary to create proper clearance.

1Assemble the two safety beam brackets from the four L-shaped brackets using two ¼-20 x ¾” bolts and ¼‑20 keps nuts (one nut & bolt for each bracket).

MARKING THE CORRECT BEAM BRACKET HEIGHT

  WARNING 

To prevent electrocution or fire, installation and wiring must be in compliance with local electrical and building codes.

Cord and Outlet Connection

The operator should be connected to a grounded receptacle on the ceiling or near the operator head. If none is available which will accept the grounded operator

  WARNING 

To reduce the risk of electric shock, this operator has a grounding pin. This plug will only fit into a grounding type outlet. If the plug doesn’t fit into the outlet, contact a qualified electrician to install the proper outlet. Do not change the plug in any way.

1 Check the Door Balance

1From outside the garage, slowly open the door all the way, and then close it all the way. Notice if there is any binding, sticking or rubbing.The door should move smoothly in both directions.

2Raise the garage door about halfway up. Carefully release the door and see if the door balances. It should stay in place. Close the door.

�IMPORTANT: If the garage door is unbalanced or the door travel isn’t smooth, have a qualified garage door professional adjust or repair the door.

CHECKING THE DOOR BALANCE

THE DOOR SHOULD BALANCE WITHOUT GOING UP OR DOWN

6 Hang the Operator

Installation requirements vary with garage construction. Hanging brackets should be angled to provide rigid support. Hanging material is not provided. Angle iron and lag screws are recommended. DO NOT USE NAILS. Following are typical operator hanging methods. Certain installations will require improvised methods.

1	Raise the operator head and set it on top of a stepladder
	(use extra spacers on top of ladder if it isn’t tall enough).
2	Carefully open the door to the full up position. Lay a 2x4

  WARNING 

To protect small children, do not install the safety beam higher or lower than instructed.

2Position the assembled brackets on each side of the door so the center line of the safety beam lenses will be 5-1/2” above the floor. Use the index marks on the brackets to make the bracket assemblies equal lengths. Mark the locations for the bracket mounting screws.

�NOTE: The safety beam receiver (the unit with two

indicators) should be located on the “shady” side of

LOCATE THE SAFETY BEAM

BRACKETS SO THE BEAM

CENTERLINE IS 5-1/2" ABOVE THE FLOOR

INSTALLING THE BEAMS

plug, one should be installed by a qualified electrician. Do not use an extension cord.

1Plug the operator into a grounded receptacle.

2When the operator is plugged in, a click should sound in the operator and the light should turn on. If light does not turn on, check the power source and light bulb.

POWERING THE OPERATOR

CEILING

OUTLET

PLUG OPERATOR

INTO GROUNDED

OUTLET

2 Attach the Rail to the Operator
	ALIGNING THE RAIL
1 Place the operator head on the garage floor with	LINE UP THE RAIL OVER THE DRIVE SHAFT
cardboard underneath it to protect the finish.	ON TOP OF THE OPERATOR HEAD

2 Align the rail over the center of the operator head.

3 Be sure the flat on the sprocket lines up with the flat on the drive shaft.

4Slide the sprocket onto the shaft.

5 Attach the rail to the operator head by installing four CHAIN DRIVE BELT DRIVE

	¼-20 x ¾” bolts.	BE SURE THE FLAT ON THE SPROCKET
6	Tighten the four bolts in the order shown with a 7/16”	LINES UP WITH THE FLAT ON THE DRIVE SHAFT
	socket.	MATING THE SPROCKET AND SHAFT
		SLIDE THE SPROCKET
		INTO THE SHAFT
		CHAIN DRIVE	BELT DRIVE
		TABS FIT INTO SLOTS
		ATTACHING THE RAIL

INSTALL FOUR 1/4-20 x 3/4"

RAIL-TO-HEAD BOLTS

USING A 7/16" SOCKET

PULL THE CHAIN OR BELT

AWAY FROM THE RAIL TO

FIT THE SOCKET ON THE

FRONT BOLTS

TIGHTEN THE RAIL-TO-HEAD BOLTS IN THIS ORDER
1	3
2	4

	across the top section of the door as a spacer. Adjust
	the operator height until the rail touches the spacer.The
	rail should be close to level.
3	Center the operator head and rail with the centerline
	mark on the top of the door.
4	For finished ceilings only: An angle iron cross piece
	between the two closest joists above the operator will be
	required. Mark mounting hole locations, drill pilot holes
	and attach the piece with two lag screws (not supplied).
5	Measure the distance from each of the operator’s
	hanging tabs to the ceiling joists or angle iron cross piece.
6	Cut two angle iron pieces to the required lengths for
	hanging brackets. Bend brackets if required.
	• For unfinished ceilings: Hold each bracket in place
	and use a pencil to mark the locations where they will
	be attached to the joists, drill pilot holes and attach the
	pieces with two lag screws (not supplied).
	• For finished ceilings with an angle iron cross piece:
	Attach the two hanging brackets to the cross piece
	with two bolts and two keps nuts (not supplied).
7	Attach operator to hanging brackets using two 5/16-18 x
	1” hex bolts and two 5/16-18 keps nuts (supplied). Insert
	bolts from the inside of hanger brackets with the nuts on
	the outside of the operator.Tighten nuts with a ½” socket.
8	Tighten all hanging hardware.
9	Open and close the door manually. The door should
	clear the rail by at least 1”.
10Attach the trolley’s release lever to the red release
	handle with the cord supplied so the handle is at least
	6 feet from the floor. Cut off any excess cord.
11Remove the light cover to access the lamp socket.
	Install a 100 watt maximum rough service in the lamp
	socket. Reattach the light cover.

ADJUSTING OPERATOR HEIGHT

PLACE A 2x4 SPACER

BETWEEN THE DOOR AND RAIL

DOOR

ADJUST HEIGHT

AS REQUIRED

HANGING BRACKET OPTIONS

TYPICAL HANGING BRACKETS

SCREWED DIRECTLY TO JOISTS

TYPICAL HANGING BRACKET

ASSEMBLY USING A CROSSPIECE

HANGING THE OPERATOR

HANG OPERATOR

WITH TWO 5/16-18 x 1"

BOLTS AND NUTS

the door to prevent sunlight from shining directly into

the receiver’s lens.

3Drill two 3/16” pilot holes for lag screws at marks. Mount the brackets with two ¼” x 1-¼” lag screws and tighten with a 7/16” socket.

4Insert the sender and receiver into the bracket holes so the lenses of the units will face each other. Twist the units until the spring clips lock into a detent mark on the brackets. To protect the units from being bumped after installation, it is recommended to mount the sender and receiver inside the brackets as shown.

�IMPORTANT: Be careful to route the safety beam wiring away from any moving parts of the door or operator.

5 For non-prewired installations, route the wires from the sender and receiver, up the wall above the door hardware, then over to the center of the door, then along the top of the rail (or ceiling), and back to the operator head. Cut the wires about 6” longer than needed to reach the operator terminals. Strip back ½” of insulation from the ends of the wires.

6 For non-prewired installations, secure all the wires to the wall and ceiling with insulated staples (not supplied). Staples must straddle both wires to prevent shorts. Secure the wire to the top of the rail with wire clips (supplied).

7At the operator, twist one wire from each pair together, then twist the other wire from each pair together.

8Attach either twisted connection to the operator’s BEAM terminal. Connect the other twisted connection to the operator’s COMMON terminal.

INSERT UNIT

INTO BRACKET

TWIST UNIT TO LOCK INTO BRACKET

PRE-ADJUSTING THE BEAMS

ADJUST UNITS SO

LENSES POINT TOWARD

EACH OTHER

SPRING CLIP LATCHES

INTO DETENT MARKS

TO HOLD UNIT'S POSITION

CONNECTING THE BEAM WIRES
CONNECT SAFETY BEAM WIRES
TO COMMON AND BEAM				PUSHBUTTON	BEAM
TERMINALS (EITHER WIRE				WIRES
					WIRES
TO EITHER TERMINAL)
N		N	BEAM	S
PUSHBUTTO	COMMO

Permanent Wiring

SOME LOCAL ELECTRICAL CODES REQUIRE PERMANENT WIRING BETWEEN THE OPERATOR AND THE POWER SOURCE THROUGH A CONDUIT. IT IS RECOMMENDED THAT YOU HAVE A LICENSED ELECTRICAL CONTRACTOR FOLLOW THESE STEPS ONLY IF PERMANENT WIRING IS REQUIRED.

1BE SURE POWER CORD IS UNPLUGGED.

2Cut the power cord about 2” above the strain relief bushing on the operator.

3Remove the four side screws and bottom cover of operator.

4Use pliers to remove the strain relief bushing and discard the bushing.

5Remove the outer insulation from the power cord and strip the white, black, and green wire insulation back about ½”.

6Pull white (neutral), black (hot) and green (ground) wires through conduit.

7Connect the conduit to the operator with the appropriate termination.

8Use wire nuts (not supplied) to connect the wires to the matching color wires inside operator head.

9Secure the wires away from all moving parts with a zip-tie as shown in the figure.

10Replace the operator cover and the four side screws.

11Connect the conduit wires to the power source at junction box.

12When power is applied to the operator, a click should sound and the light should turn on. If the light does not turn on, check the power source, wiring, and light bulb.

FOR PERMANENT WIRING ONLY!

REMOVING THE POWER CORD

BE SURE THE POWER

CORD IS UNPLUGGED!!

CUT THE CORD ABOUT 2" ABOVE THE STRAIN RELIEF BUSHING

FOR PERMANENT WIRING ONLY!

REMOVING THE BUSHING

REMOVE STRAIN

RELIEF BUSHING

WITH PLIERS

FOR PERMANENT WIRING ONLY!

HARDWIRING THE OPERATOR	CONDUIT	WIRE
		NUTS

CONNECT CONDUIT

WIRING TO OPERATOR

WIRING WITH

WIRE NUTS

GREEN - GROUND

WHITE - NEUTRAL

BLACK - HOT