Serial #
(located on electrical box cover)
Installation Date
Wiring Type
2 YEAR WARRANTY
The Maintenance Alert System™
allows the installer to set an internal
Maintenance Cycle Counter. An LED
on the 3-button station will signal when
the set number of cycles is reached or
when the opener requires immediate
service.
NOT FOR RESIDENTIAL USE
OWNER’S MANUAL
MODEL T
LOGIC CONTROL (VER. 2.0)
INDUSTRIAL DUTY DOOR OPERATOR
LOGIC C
O
NTROL
L
FACTORY SET
C2 Wiring
See pages 15 & 16
for other wiring
configurations
PATENT PENDING
2
TABLE OF CONTENTS
SPECIFICATIONS
Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Motor Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Safety Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Weights & Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PREPARATION
Track Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Powerhead Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Trolley Carriage/ Chain Attachment . . . . . . . . . . . . . . . . . . . . . . .4
INSTALLATION INSTRUCTIONS
Mounting Header Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Mounting Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Operator Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Straight Arm Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
ENTRAPMENT PROTECTION ACCESSORIES
Sensing Edges & Photo Eyes . . . . . . . . . . . . . . . . . . . . . . . . . . .7
LIMIT SWITCH ADJUSTMENT
Limit Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
POWER & CONTROL WIRING
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Ground Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Control Station Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Radio Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Optional Control Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Control Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .28
EMERGENCY DISCONNECT SYSTEM
Disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
BRAKE ADJUSTMENT
Brake Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
CLUTCH ADJUSTMENT
Clutch Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Clutch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
WIRING DIAGRAMS
1 PH Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3 PH Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
1 PH Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3 PH Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
STANDARD PROGRAMMING
Wiring Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 & 16
Self Monitoring Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . .16
RPM Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Maximum Run Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Maintenance Alert System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
OPTIONAL PROGRAMMING
Mid Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Timer to Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Red Green Warning Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Board Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
REPLACEMENT PARTS & MAINTENANCE
Trouble Shooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . .21 & 22
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Customer Service Contact Information . . . . . . . . . . . . . . . . . . .23
Electrical Box parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 & 25
Chassis Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 & 27
PACKING LIST
P
ART #
01-17278
02-103L
10-10203
10-10204
10-10205
11-10130
11-10197
19-41ML
40-15259
40-55
75-10174
QTY
.
1
1
1
1
1
1
1
2
1
2
1
DESCRIPTION
OWNERS MANUAL
3 BUTTON STATION
DOOR CURVED ARM
DOOR BRACKET
TRACK END BRACKET
PIVOT SHAFT
TAKE-UP BOLT
MASTER LINK, #41
LABEL, MAINTENANCE ALERT
LABEL, TROLLEY CAUTION
FRONT IDLER ASSEMBLY
P
ART #
75-10214
75-10259
75-17942
82-HN38-12
82-HN38-16
82-RN31-26
84-FN-31
84-FN-38
84-LH-38
85-LS-38
86-CP045-108
QTY
.
1
2
1
10
3
2
2
12
1
3
2
DESCRIPTION
DOOR ARM ASSEMBLY
TRACK SPACER ASSEMBLY
TROLLEY SLIDER
HEX BOLT, 3/8-16 X 3/4" LONG
HEX BOLT, 3/8-16 X 1" LONG
CARRIAGE BOLT, 5/16-18 X 2-1/2"
FLANGE NUT, 5/16-18
FLANGE NUT, 3/8-16
LOCKNUT, 3/8-16
LOCKWASHER, 3/8"
COTTERPIN, 9/64 X 1-1/2" LONG
HARDWARE KIT (K77-13821)
Before beginning your installation check that all components were supplied and received undamaged.
Before attempting to install, operate or maintain the operator, you must read and fully understand this
manual and follow all safety instructions.
These instructions are intended to highlight certain safety related issues. These instructions are not
intended to be comprehensive. Because each application is unique, it is the responsibility of the purchaser,
designer, installer and end user to ensure that the total door system is safe for its intended use.
3
MOTOR
TYPE: . . . . . . . . . . . . . . . . . .Continuous duty
HORSEPOWER: . . . . . . . . .1/3, 1/2, 3/4 & 1 HP
SPEED: . . . . . . . . . . . . . . . .1725 RPM
VOLTAGE: . . . . . . . . . . . . . .115, 208-230 Single phase
230, 380, 460, 575 Three
Phase
CURRENT: . . . . . . . . . . . . . .See motor nameplate
MECHANICAL
DRIVE REDUCTION: . . . . . . .Primary: Heavy duty (5L)
V-Belt. Secondary: #41 chain/sprocket. Output: #48
chain (1/3 &1/2HP) or #41 chain (3/4 &1HP)
OUTPUT SHAFT SPEED: . . . .140 R.P.M.
DOOR SPEED: . . . . . . . . . . . .11" - 12" per sec.
depending on door
BRAKE: . . . . . . . . . . . . . . . . . .Solenoid actuated disc
brake on 3/4 & 1HP
BEARINGS: . . . . . . . . . . . . . . .Output Shaft: Shielded
Ball Bearing. Clutch Shaft: IronCopper sintered and oil
impregnated.
SAFETY
DISCONNECT: . . . . . . . . . . . . .Quick disconnect door
arm for emergency manual door operation.
SAFETY PHOTO EYES (Optional): Thru beam or retro
reflective devices used to provide non-contact safety
protection. Directly interface to Lift Master CPS-L or
CPS-LN4 Commercial Protector Systems.
SAFETY EDGE (Optional): . . . Electric or pneumatic
sensing device attached to the bottom edge of door.
A REVERSING DEVICE IS STRONGLY
RECOMMENDED FOR ALL COMMERCIAL
OPERATOR INSTALLATIONS. REQUIRED WHEN THE
3 BUTTON CONTROL STATION IS OUT OF SIGHT OF
DOOR OR ANY OTHER CONTROL (AUTOMATIC OR
MANUAL) IS USED.
SPECIFICATIONS
ELECTRICAL
TRANSFORMER: . . . . . .24VAC Secondary
CONTROL STATION: . . .NEMA 1 three button station.
OPEN/CLOSE/STOP W/ LED
WIRING TYPE: . . . . . . . .C2 (Factory Shipped)
Momentary contact to OPEN & STOP, constant pressure
to CLOSE, open override plus wiring for sensing device
to reverse. See pages 15 thru 19 for optional wiring
types and operating modes.
LIMIT ADJUST: . . . . . . . .Linear driven, fully adjustable
screw type cams. Adjustable to 24 feet.
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: 80-110 LBS.
Door Height Plus 4 feet (minimum)
*
4"
Highest Point of Door Travel
For Units with Brake add 3-1/2"
*
(Standard on 3/4 & 1HP models Optional on 1/3 & 1/2HP)
13-1/8"
10-1/2"
*20-1/2"
4
OPERATOR PREPARATION
POWERHEAD ATTACHMENT
1. Position the track assembly on the frame of the
powerhead so that the motor side of operator is in back
(away from door ).
2. Loosely install two 3/8"-16 x 3/4" bolts and nuts in third
hole from the end of the track .
3. Align the track so that the bolts inserted in step 2 line up
with the L-Slots in the frame.
4. Connect the track to the powerhead by fastening two
3/8"-16 x 3/4" bolts and nuts through the frame and the
end holes in track. Tighten all four bolts to secure the
track to the powerhead.
TROLLEY CARRIAGE / CHAIN ATTACHMENT
1. Attach the take-up bolt to the trolley carriage using
3/8-16" hex nuts and lock washer, as shown below.
2. Using one of the master links, attach the chain to the
other end of the trolley carriage. Reel the chain around
the front idler shaft, over the spacer brackets, back to
the drive shaft sprocket, and then to the take-up bolt on
the carriage.
3. Using the other master link, attach the chain to the
take-up bolt and tighten to the desired chain tension.
Chain Tension: With trolley positioned at either end of
the track, a properly adjusted chain will sag about 3" at the
mid-point. If necessary, remove links from the chain to
achieve proper adjustment.
KEEP DOOR BALANCED. STICKING OR BINDING DOORS
MUST BE REPAIRED. DOORS, DOOR SPRINGS, CABLES,
PULLEYS, BRACKETS AND THEIR HARDWARE MAY BE
UNDER EXTREME TENSION AND CAN CAUSE SERIOUS
PERSONAL INJURY OR DEATH. CALL A PROFESSIONAL
DOOR SERVICEMAN TO MOVE OR ADJUST DOOR SPRINGS
OR HARDWARE.
WARNING
TRACK ASSEMBLY
1. Using the 3/8"-16 x 3/4" bolts and flange hex nuts
supplied, assemble the operator track by installing and
tightening the track spacer brackets. Position the
spacers evenly over the length of the track.
NOTE: The nylon pad on the spacer bracket should
face up.
2. Using (2) 3/8"-16 x 1" bolts and lock washers, install the
front idler assembly to the second set of holes of one
end of the track. Refer to the illustration below.
3. Slide the trolley carriage onto the track so that the
take-up bolt will be toward the operator.
WARNING
Front Idler Assembly
Reel chain
around idler and
over spacer brackets
Trolley Carriage
Trolley Assembly
Master Link
Hex Nut
Lockwasher
Trolley Carriage
Hex
Nut
Master Link
Roller Chain
Straight Arm
Spacer Bracket
(mounted nylon pad side up)
L - Slot
Take-up Bolt
Take-up Bolt
5
Carpenter’s
Level
Header Wall
High Point
of Travel
IMPORTANT NOTE: Before the operator is installed, be sure the door has been properly aligned and is working
smoothly. Although each installation will vary due to particular building characteristics, refer to the following general
procedures to install the operator.
MOUNT HEADER BRACKET
The trolley operator is generally mounted over the center
of the door. However, off center mounting may be
required due to interfering structures or location of door
stile / top section support. In such cases, the operator
may be mounted up to 24" off center on torsion spring
doors. Extension springs require center mounting.
1. Locate the center of the door and mark a line on the
wall directly above the door. Extend this line up the
wall.
2. Determine the highest point of door travel. Slowly raise
the door and observe the action of the top section.
When the top section reaches its highest point, use a
level and project a line from this point to the center line
the of the door.
MOUNT OPERATOR
1. Allowing the motor to rest on the floor, raise the front
end of the track assembly to the front header bracket
and fasten using the 3/8" dia. x 6.40" long pivot shaft
and cotterpins supplied.
3. Using the projected lines for location, mount a suitable
wood block or length of angle iron to the wall above the
door opening. Refer to the illustration below. This will
provide a mounting pad for the front header bracket of
the operator. If necessary reinforce the wall with
suitable mounting brackets to ensure adequate support
of mounting pad. Using suitable hardware, mount the
(U-shaped) front header bracket to the pad.
Header Bracket Drill Pattern
2. Swing the operator to a horizontal position above the
guide rails and temporarily secure with a suitable rope,
chain, or support from the floor. Now open garage door
slowly, being careful not to dislodge the temporary
support. Using the door as a support, place a level
against the rail and shim the operator until it is
horizontal. Make sure that the operator is aligned with
the center line of the door.
Operator Alignment
INSTALLATION INSTRUCTIONS
Door Travel
Projection
Header Bracket
Cotterpins
Pivot Shaft
3.50"
1.75"
High Rise Point
4" MIN.
Vertical Center Line of Door
Projection Line
Guide
Rails
Using the door as support, shim
operator to a horizontal position.
Operator Alignment
6
INSTALLATION INSTRUCTIONS
OPERATOR SUPPORT
1. The illustration below shows a typical method of
hanging the operator from the ceiling. Each installation
may vary, but in all cases side braces should be used
for additional strength.
2. For mounting of the support brace(s) to the powerhead,
Four holes (clearance up to 3/8" bolts) are located on
each side of frame.
NOTE: If the operator is longer than 15 feet, use of a mid-
span support is recommended.
STRAIGHT ARM ATTACHMENT
1. Fully close the door and move the trolley slider to within
(2") two inches of the front idler.
2. Latch the straight door arm to the fixed roll pin in the
trolley carriage. Make sure the open side of notch on
the arm faces the doorway.
3. Attach the door bracket to the door arm using the
3/8"-16 x 1" bolt and nylon locking nut provided. Leave
the nut and bolt loose enough to allow the two pieces to
pivot freely.
4. Using 3/8" hardware provided, bolt the curved door arm
to the straight arm, aligning the mounting holes in such
a way that the door bracket pivot bolt will be in line with
the top rollers on the door.
5. Position the door bracket to the center line on the door.
Using suitable hardware, attach the door bracket to the
door. Many installations, except solid wood doors, will
require additional support for the door. Refer to the
illustration below.
IMPORTANT NOTE: At this time, ensure all bolts and lag
screws are properly secured.
FAILURE TO SUSPEND THE OPERATOR SECURELY MAY
RESULT IN SERIOUS PERSONAL INJURY OR DEATH,
AND/OR PROPERTY DAMAGE.
WARNING
WARNING
Mid-Span
Support Brace
Powerhead Support Brace
Top
Roller
Straight Arm
Center Line of Door
Door Bracket
Curved
Door Arm
Pivot Bolt
7
TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM
ELECTROCUTION, DISCONNECT ELECTRIC POWER BEFORE
MANUALLY MOVING LIMIT NUTS.
WARNING
MAKE SURE THE LIMIT NUTS ARE POSITIONED BETWEEN THE LIMIT SWITCH ACTUATORS BEFORE
PROCEEDING WITH ADJUSTMENTS.
If other problems persist, call our toll-free number for
assistance: 1-800-528-2806.
1. To adjust limit nuts depress retaining plate to allow nut
to spin freely. After adjustment, release plate and
ensure it seats fully in slots of both nuts.
2. To increase door travel, spin nut away from actuator.
To decrease door travel, spin limit nut toward actuator.
3. Adjust open limit nut so that door will stop in open
position with the bottom of the door even with top of
door opening.
4. Repeat Steps 1 and 2 for close cycle. Adjust close limit
nut so that actuator is engaged as door fully seats at
the floor.
Retaining Plate
CLOSE Limit Switch
SAFETY
OPEN Limit Switch
Actuator
(Aux. Open) Limit Switch
PHOTO EYES & SENSING EDGES
Sensing devices supplied for door industry type operators
with an isolated normally open (N.O.) dry contact output
are compatible with your operator. This includes
pneumatic and electric edges, and through beam and retro
reflective photo eyes. If your door does not have bottom
safety photo eyes or a sensing edge and you wish to add
a safety device to your application, please contact your
local LiftMaster Authorized Dealer.
If not pre-installed by the door manufacturer, mount the
sensing edge on the door according to the instructions
provided with the edge. The sensing edge may be
electrically connected by either coiled cord or take-up reel.
Important Notes:
a. Proceed with Limit Switch Adjustments before making
any sensing edge wiring connections to operator as
described below.
b. Electrician must hardwire the junction box to the
operator electrical box in accordance with local codes.
ENTRAPMENT PROTECTION ACCESSORIES (OPTIONAL)
WIRING:
For wiring of your sensing device to the operator, refer to
the wiring diagrams supplied on pages 13 and 14. See
field connection terminals identified as Reversing Device.
TAKE-UP REEL: Take-up reel should be installed 12"
above the top of the door.
COIL CORD: Connect operator end of coil cord to
junction box (not supplied) fastened to the wall
approximately halfway up the door opening.
It is strongly recommended that a SAFETY PHOTO EYE OR
SENSING EDGE BE USED IN CONJUNCTION WITH THE
OPERATOR.
WARNING
WARNING
LIMIT SWITCH ADJUSTMENT
NOTICE
WARNING
8
DISCONNECT POWER AT THE FUSE BOX BEFORE
PROCEEDING.
OPERATOR MUST BE PROPERLY GROUNDED AND
CONNECTED IN ACCORDANCE WITH LOCAL ELECTRICAL
CODES. NOTE: THE OPERATOR SHOULD BE ON A SEPARATE
FUSED LINE OF ADEQUATE CAPACITY.
ALL ELECTRICAL CONNECTIONS MUST BE MADE BY A
QUALIFIED ELECTRICIAN.
WARNING
TO AVOID DAMAGE TO DOOR AND OPERATOR, MAKE ALL
DOOR LOCKS INOPERATIVE. SECURE LOCK(S) IN "OPEN"
POSITION.
IF THE DOOR LOCK NEEDS TO REMAIN FUNCTIONAL,
INSTALL AN INTERLOCK SWITCH.
Before installing power wiring or control stations be sure to follow all specifications and warnings described
below. Failure to do so may result in severe injury to persons and/or damage to operator.
The operator electrical box is only to be accessed by trained “LIFTMASTER” technicians. If service is
required contact your local LIFTMASTER dealer.
Do not install any wiring or attempt to run the operator without consulting the wiring diagram. Install the
optional Reversing Edge before proceeding with the Control Station installation.
Remove the cover from the electrical enclosure. Inside this enclosure you will find the wiring diagram(s) for
your unit. Refer to the diagram (glued on the inside of the cover) for all connections described below. If this
diagram is missing, call the number on the back of this manual. DO NOT INSTALL ANYWIRING OR
ATTEMPT TO RUN THIS OPERATOR WITHOUT CONSULTING THE WIRING DIAGRAM.
IMPORTANT SAFETY NOTES
INSTALL POWER WIRING & CONTROL STATION
ANY MAINTENANCE TO THE OPERATOR OR IN THE AREA
NEAR THE OPERATOR MUST NOT BE PERFORMED UNTIL
DISCONNECTING THE ELECTRICAL POWER AND LOCKINGOUT THE POWER VIA, THE MAIN DISCONNECT SWITCH.
UPON COMPLETION OF MAINTENANCE THE AREA MUST BE
CLEARED AND SECURED, AT THAT TIME THE UNIT MAY BE
RETURNED TO SERVICE.
WARNING
INSTALL THE CONTROL STATION IN LINE OF SIGHT WITH
THE DOOR, BUT AWAY FROM THE DOOR AND ITS
HARDWARE. IF CONTROL STATION CANNOT BE INSTALLED
WHERE DOOR IS VISIBLE, OR IF ANY DEVICE OTHER THAN
THE CONTROL STATION IS USED TO ACTIVATE THE DOOR, A
REVERSING DEVICE MUST BE INSTALLED ON THE BOTTOM
OF THE DOOR. FAILURE TO INSTALL A REVERSING DEVICE
UNDER THESE CIRCUMSTANCES MAY RESULT IN SERIOUS
INJURY OR DEATH.
WARNING
WARNING
WARNING
WARNING
9
POWER WIRING CONNECTIONS
1. Connect power wires coming from the main to the
captive terminal block in the electrical box enclosure
marked with the label shown below.
2. Be sure to run all power wires through the conduit hole
in the electrical box enclosure marked with the label
shown below.
CONTROL WIRING CONNECTIONS
1. Connect control wires to the TB1 terminal block located
on the Printed Circuit Board (shown below).
ON THREE PHASE MACHINES ONLY:
Incorrect phasing of the power supply will cause the motor
to rotate in the wrong direction.
OR IN THE AREA NEAR THE OPERATOR MUST
NOT BE PERFORMED UNTIL DISCONNECTING
THE ELECTRICAL POWER AND LOCKING-OUT
THE POWER VIA, THE MAIN DISCONNECT
SWITCH. UPON COMPLETION OF
MAINTENANCE THE AREA MUST BE CLEARED
AND SECURED, AT THAT TIME THE UNIT MAY
BE RETURNED TO SERVICE.
4 Feet
Approximate
Control
Station
Optional
Controls
Maintenance Alert
System™
If light is Flashing
it is time for routine
Door and Opener
Maintenance.
If light is Steady On,
call for immediate
service.
Service every
_______ cycles.
1. Mount Control Stations no further than (12") from each
other.
2. Mount Control Stations (12") from the door enclosure.
3. Mount WARNING NOTICE beside or below the Control
Station.
4. Mount MAINTENANCE ALERT label to either side of
control station.
1. Connect earth ground to the chassis ground screw in
the electrical box enclosure marked with the label
shown below.
2. Use same conduit entry into the electrical box as the
power wiring.
IMPORTANT: THIS UNIT MUST BE PROPERLY
GROUNDED. FAILURE TO PROPERLY GROUND THIS
UNIT COULD RESULT IN ELECTRIC SHOCK AND
SERIOUS INJURY.
INSTALL POWER WIRING & CONTROL STATION (CONT’D)
1 SBC SINGLE BUTTON CONTROL
2INTERLOCK
3INTERLOCK
4CMN COMMON
5 STOP STOP
6 CLOSE CLOSE
7 OPEN OPEN
8REV REVERSE
9IR INFRARED PHOTO EYES
10 MAS MAINTENANCE ALERT SYSTEM
11 CMN COMMON
12 24AC+ 24 VOLT AC
13 24AC- 24 VOLT AC
On all models with B2 control wiring, a terminal bracket
marked R1 R2 R3 is located on the outside of the
electrical enclosure. Any commercial type LiftMaster
brand receiver may be mounted to this bracket. The
operator will then open a fully closed door, close a fully
open door, stop an opening door, and reverse a closing
door from the radio transmitter. In TS control wiring the
operator will only open the door or reset the timer to close.
However, for additional door control from a 3-button
transmitter, a commercial three-channel radio receiver
(with connections for OPEN/CLOSE/STOP) is
recommended.
2. Be sure to run all control wires through the conduit hole
in the electrical box enclosure marked with the label
shown below.
3. Apply power to the operator. Press OPEN push button
and observe direction of door travel and then Press the
STOP button.
If door did not move in the correct direction, check for
improper wiring at the control station or between operator
and control station.
MOUNTING INSTRUCTIONS
RADIO CONTROLS
GROUND WIRING
13 24AC-
12 24AC+
11 CMN
10 DIAG
9 IR
8 REV
7 OPEN
6 CLOSE
5 STOP
4 CMN
3
2
1 SBC
40-10033B
2
3
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