Chamberlain MHS User manual

Serial #
(located on electrical box cover)
Installation Date
2 YEAR WARRANTY
NOT FOR RESIDENTIAL USE
I N S T A L L A T I O N M A N U A L
MODEL
MJ5011E • MH5011E • MHS5011E
MEDIUM DUTY DOOR OPERATOR
Now with
Built in
Radio Receiver
RadioReceiver
BuiltonBoard
315MHz
INTENDED FOR PROFESSIONAL
INTENDED FOR PROFESSIONAL
INSTALLATION ONLY
INSTALLATION ONLY
Visit www.LiftMaster.com to locate a professional installing dealer in your area.
A SAFETY DEVICE IS HIGHLY RECOMMENDED.

2
SAFETY INFORMATION
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 door and/or the
door operator if you do not comply with the cautionary
statements that accompany it. Read them carefully.
Mechanical
Electrical
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNINGWARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTIONCAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
IMPORTANT NOTES:
• BEFORE attempting to install, operate or maintain the operator,
you must read and fully understand this manual and follow all
safety instructions.
• DO NOT attempt installation, repair or service of your
commercial door and gate operator unless you are an
Authorized Service Technician.
SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
APPLICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
OPERATOR DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
OPERATOR SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CARTON INVENTORY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TYPICAL INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12
ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
OPTIONAL SAFETY DEVICE CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15
LOGIC BOARD LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
BASIC PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-19
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
EMERGENCY DISCONNECT SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-23
DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
REPAIR PARTS - ELECTRICAL BOX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
REPAIR PARTS KITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-27
OPERATOR NOTES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28-30
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
CONTROL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BACK COVER
TABLE OF CONTENTS

3
APPLICATIONS
Maximum Door Area (SQ. FT)
SECTIONAL DOOR ROLLING DOOR
SQ. FT
24 ga. Steel 22 ga. Steel --- 20 ga. Steel
18 ga. Steel 16 ga. Steel
Aluminum
Grilles
Aluminum
Doors --- ---
--- 24 ga. Steel 20 ga. Steel --- 20 ga. Steel
Insulated
16 ga.
Steel
Insulated
--- 24 ga.
22 ga. Steel 20 ga. Steel --- 16 ga. Steel ---
Fiberglass Aluminum
Doors Wood Doors --- --- ---
--- --- 24 ga. Steel
Insulated ---
20 ga.
Steel
Insulated
16 ga.
Steel
Insulated
320 275 250 200 160 120
NOTE: On steel insulated doors, a 24 ga. Back panel is assumed.
INTRODUCTION
This Medium Duty Commercial Door Operator includes a number of features that will provide years of reliable and safe operation.
Features:
• Supports both monitored and non-monitored safety devices: Safety devices detect obstructions in the door's path and
automatically reverse a closing door. Safety devices are highly recommended by the manufacturer.
• Radio receiver: A factory installed radio receiver allows remote controls, keyless entries and other remote command devices to be
programmed to the operator.
• Timer To Close: The Timer To Close feature allows the door to automatically close after a preset time (only available with B2
wiring and a monitored safety device).
• Wiring Types: The functionality of the operator is based on the wiring type. The operator is shipped from the factory in standard
C2 wiring type (factory default). Some wiring types will require an optional safety device. Refer to Basic Programming Section for
descriptions of wiring types, requirements and programming.
Intended for use on vertical or high-lift sectional doors, or rolling door products.
The MHS operator is recommended for rolling sheet doors.
Not recommended for use on a standard lift sectional door.

4
10.88"
15.78"
6.34" 6.34"
12.69"
6.13"
3.63"
9.19"
18.50"
2.91"
7.00"
14.75"
AA
AA
6.50"
B
B
B
B
WEIGHTS AND DIMENSIONS
HANGING WEIGHT:60-70 LBS. (27.22-31.75 kg)
6.34"
(16.1 cm)
Hand Chain Wheel
present with model
MH only.
7"
(17.78 cm)
12.69"
(32.23 cm)
OPERATOR SPECIFICATIONS
MOTOR
TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limited duty
HORSEPOWER: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/2 HP
VOLTAGE: . . . . . . . . . . . . . . . . . . . .115Vac, Single Phase, 60Hz
FULL LOAD AMPS:. . . . . . . . . . . . . . . . . . . . . . . . . . . 6.0 Amps
ELECTRICAL
OPERATOR VOLTAGE: . . . . . . . . . 115Vac, Single Phase, 60 Hz
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . C2 (Standard)
B2 Configurable (See Basic Programming Section)
CONTROL WIRING: . . . . . . . . . . . . . . . . . . . . . . . . . 16-22 AWG
ENVIRONMENTAL
LOCATION: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Indoor, dry location
OPERATING TEMPERATURE: . . . . . . . . -4˚ F to +122˚ F (-20C˚ to + 50˚C)
OPERATOR DIMENSIONS
MOUNTING DIMENSIONS
A - Wall Mounting
B - Bracket Mounting (rolling door)
6.34"
(16.1 cm)
10.88" (27.64 cm)
15.78"
(40.03 cm)
18.5"
(47 cm)
2.91" (7.39 cm)
3.63"
(9.22 cm)
6.13"
(15.57 cm)
9.19"
(23.34 cm)
6.34"
(16.51 cm)
7"
(17.78 cm)
14.75"
(37.47 cm)
SAFETY
DISCONNECT:
MH . . . . . . . . . . . . . . . . . . . . . . . . . Floor level chain hoist for
emergency manual chain hoist operation.
MJ. . . . . . . . . . . . . . . . . . . . . . . . . . Floor level disconnect for
emergency manual operation.
MHS . . . . . . . . . . . . . . . . . . . Both disconnects described above.
ENTRAPMENT PROTECTION: . . . . . Supports both monitored
and non-monitored safety devices including LiftMaster CPS
photo-eyes and industry standard sensing edges.
MECHANICAL
DOOR SPEED:. . . . . . . . . . . .Approximately 9" (23 cm) / second
depending on door setup
OUTPUT FORCE:. . . . . . . . . . . . . . . . . . . . . . . . .125 ft. lbs/ sec.
OUTPUT RPM:
MJ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 RPM
MH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 RPM
MHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38.6 RPM
LIMIT ADJUST:. . . . . . . . . . Fully adjustable up to 14' door Max
DUTY: . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Cycles per Hour Max
50 Cycles per Day Max
DRIVE TRAIN:. . . . . . . . . . . . . . . . . . Maintenance Free Bearings
FINISH: . . . . . . . . . . . Powder coated, Corrosion Resistant Steel

5
PREPARATION
CARTON INVENTORY
To prevent possible SERIOUS INJURY or DEATH:
• DO NOT connect electric power until instructed to do so.
• If the door lock needs to remain functional, install an
interlock switch.
• ALWAYS call a trained professional door serviceman if door
binds, sticks or is out of balance. An unbalanced door may
not reverse when required.
• NEVER try to loosen, move or adjust doors, door springs,
cables, pulleys, brackets or their hardware, ALL of which are
under EXTREME tension and can cause SERIOUS personal
INJURY.
• Disable ALL locks and remove ALL ropes connected to door
BEFORE installing and operating door operator to avoid
entanglement.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
HANDING IDENTIFICATION
For MH and HMS models with manual hoist hand
chain systems, the handing of the operator must be
determined at the time of order. The handing is
indicated by last letter of the model name (R or L).
(Illustration shows right handed operator. Left handed
operator will have hoist chain on the left side.)
The hand chain wheel can not be switched on site. If
your installation causes the hand chain to hang in the
door opening, hook the chain off to the side near the
top of the door jamb.
Output Shaft
Before beginning your installation check that all components were provided.
^
OPEN
^
CLOSE
O
STOP
ITEM DESCRIPTION QTY
1 Operator 1
2 Warning labels 2
3 3-Button station 1
4 Hoist hand chain (models MH and MHS only) 1
5 Door/Operator chain 1
6 Door sprocket 1
NOT SHOWN
Installation Manual 1
Quickstart Guide 1
User's Guide 1
Caution Label 1
Installation Hardware Box 1
Complete with: Master links (2),
wall bracket (1), Fastener Bag (1)
1
64
3
5
2
PREPARING YOUR DOOR
The manufacturer recommends 3' (91.4 cm) of clearance in front
of operator for serviceability. Before you begin:
• Disable locks.
• Remove any ropes connected to door.
• 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.
Right Handed Operator

6
ASSEMBLY
Right hand assembly Left hand assembly
Operator
Operator Drive
Sprocket
Drive Shaft
Operator Drive
Sprocket
Drive Shaft
Operator
1INSTALL OPERATOR DRIVE SPROCKET
TYPICAL INSTALLATION
1DETERMINE MOUNTING LOCATION FOR OPERATOR
Optimum Distance 12 - 15"
Optimum Distance 12 - 15"
The operator may be mounted on the wall, shelf or bracket (not provided, see accessories or door manufacturer). The optimum
distance between the door shaft and operator drive shaft is 12"-15".
Wall mount Shelf or bracket mounting
Door Shaft
Operator
Drive Shaft
Door Shaft
Operator
Drive Shaft

7
5WRAP DRIVE CHAIN AROUND OPERATOR SPROCKET
Door Sprocket
Electrical Box
Operator Drive
Sprocket
Drive Chain
4WRAP DRIVE CHAIN AROUND DOOR SPROCKET
Door Sprocket
Drive Chain
Master Link
2 3
PLACE DOOR SPROCKET ON DOOR SHAFT PLACE OPERATOR DOOR SPROCKET ON OPERATOR
Door Sprocket
Operator
Operator Drive
Sprocket
Drive Shaft
Door Shaft
NOTE: All illustrations will depict a typical right hand wall mount installation.
TYPICAL INSTALLATION

8
6POSITION OPERATOR
Door
Door Sprocket
Key
Key
Operator Drive
Sprocket
Adjust operator until chain is taut (not tight). If chain
is too tight, it may cause damage to operator.
Keep door sprocket and operator door sprocket aligned. If sprockets are not
aligned, they may cause premature wear on the chain.
Secure both sprockets with key and set
screw. If sprockets are not secure, they may
drift and cause damage to operator.
Set Screw
Door Sprocket
TYPICAL INSTALLATION

9
TYPICAL INSTALLATION
7SECURE OPERATOR
Operator
Operator
Secure operator to mounting surface using
appropriate method and hardware. Mounting
template can be found on carton.
8INSTALL MANUAL DISCONNECT SYSTEMS
Floor
2'
4'
above
floor
4'
above
floor
Wrap hand chain around hand
chain wheel and through chain
guide
Secure chain retaining bracket to wall
Connect the ends of the hand chain
Hand Chain
Hand
Chain
Wheel
The MHS operator includes both a floor level disconnect chain to disconnect the door from the door operator and a disconnect chain
with manual hoist to electrically disable the operator controls.
Keyhole
Bracket
Chain Retaining Bracket
(with pad locking provisions)
Secure keyhole bracket to wall
BA
A
(MH AND MHS ONLY)(MH AND MHS ONLY)
(MJ ONLY)

Power
Control
Line Power 115 Vac Single Phase
Hot
Neutral
Ground
Do NOT turn power on until you have finished making ALL power and control wiring connections.
10
TYPICAL INSTALLATION
9REMOVE COVER
Electrical Box Cover
Operator
10 RUN POWER WIRES TO ELECTRICAL BOX
ACCORDING TO LOCAL ELECTRICAL CODES
Electrical
Box
Conduit
Electrical Box
11 ATTACH POWER AND GROUND
WIRES TO TERMINALS
Sealing Nut
(Not Provided)
POWER AND GROUND WIRING CONNECTIONS
NOTE: Power and control wiring must be run in separate conduit
in accordance with local electrical codes. Must use 14 AWG or
heavier wire for power wiring. Use conduit knockouts for wiring as
indicated on the electrical box labels.
IMPORTANT NOTE: Operator must be properly grounded. Failure
to properly ground the operator could result in electric shock and
serious injury.
To reduce the risk of SEVERE INJURY or DEATH:
• ANY maintenance to the operator or in the area near the
operator MUST NOT be performed until disconnecting the
electrical power and locking-out the power via the operator
power switch. Upon completion of maintenance the area
MUST be cleared and secured, at that time the unit may be
returned to service.
• Disconnect power at the fuse box BEFORE proceeding.
Operator MUST be properly grounded and connected in
accordance with local electrical codes. The operator should be
on a separate fused line of adequate capacity.
• ALL electrical connections MUST be made by a qualified
individual.
• DO NOT install ANY wiring or attempt to run the operator
without consulting the wiring diagram.
• Reversing devices are recommended for ALL installations.
• ALL power wiring should be on a dedicated circuit and well
protected. The location of the power disconnect should be
visible and clearly labeled.
• ALL power and control wiring MUST be run in separate
conduit.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
DISTANCE GAUGE
50' 14 AWG
100' 12 AWG
200' 8 AWG*
350' 6 AWG*
500' 4 AWG*
1000' 2 AWG*
POWER WIRING CHART
* Maximum wire gauge that can be connected to the
operator’s terminal is 12 AWG. When a larger wire gauge
is required, the wire must be gauged down to 12 AWG.

^
O
OPEN
STOP
^
CLOSE
3-Button
Control Station
12 INSTALL 3-BUTTON CONTROL STATION
INSTALLATION
5' (1.5 m)
Ground
Select location for 3-button control station
Screws
Remove cover
Secure using
appropriate
hardware
^
O
OPEN
STOP
^
CLOSE
^
O
OPEN
STOP
^
CLOSE
Knockout
Operator
Conduit
Wall
Wire 3-button control station
11
Select appropriate knockout
and run wire according to
local electrical code from
operator to 3-button control
station.
Secure warning signs to wall
To prevent possible SEVERE INJURY or DEATH, install
reversing sensors when:
• The radio is used.
• The 3-button control station is out of sight of the door.
• Or ANY other control (automatic or manual) is used.
Reversing devices are recommended for ALL installations.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTIONCAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
Power
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC LEARN
1
LMEP1 LMEP2
2345 67
STOP CLOSE OPEN
R27
^
OPEN
^
CLOSE
O
STOP
AUX ANT
^^^^
AUX ANT
AUXANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC LEARN
1
LMEP1 LMEP2
2345 67
STOP CLOSE OPEN
Logic Board
Remove factory
jumper if external
interlock is used
3-Button
Control Station
Open
Close
Stop
Control
Common

12
Cut this Wire Tie
Locate the wire antenna on the outside of the electrical box.
Cut the wire tie closest to the edge of the electrical box.
Press the plastic standoff into the hole in the side of the
electrical box.
13 SETUP RADIO ANTENNA
Option A Option B
Locate the wire antenna on the outside of the electrical box.
Cut wire ties and discard standoff.
Attach the antenna to the electrical box using the wire tie
holes. Bend antenna across the front of the electrical box,
ensuring that the antenna is 4" away from the front of the
electrical box.
INSTALLATION
Cut these Wire Ties
Wire
Ties
Cut Wire
Ties
Antenna
Wire
Ties
Antenna
Standoff
Antenna
Cut
Wire Tie

13
A B
2ADJUST THE CLUTCH
Clutch Nut
Replace Cotterpin
To Loosen
To Tighten
ADJUSTMENT
Bend ends
of cotterpin
to secure
clutch nut
• Apply power to operator
• Turn clutch nut to release tension.
• Re-tighten nut until there is just enough
tension to permit smooth operation.
• Secure clutch nut with cotter pin.
1ADJUST THE LIMITS
To avoid SERIOUS personal INJURY or DEATH from
electrocution, disconnect electric power BEFORE moving limit
nuts or adjusting clutch nut.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
Depress retaining plate Adjust OPEN limit Adjust CLOSE limit
Retaining Plate
Decrease Door
Travel
Increase Door
Travel
OPEN Limit Switch
OPEN Limit Nut
CLOSE Limit Switch
CLOSE Limit Nut
SAFETY Limit
Switch
Decrease Door
Travel
Increase Door
Travel
NOTE: When retaining plate is released, verify that the retaining plate is fully seated with the notches of the limit nut.

14
OPTIONAL SAFETY DEVICE CONFIGURATIONS
To protect against accidental entrapment or injury from a
moving door it is recommended that a safety device (sensing
edge or photo eyes) be installed.
IMPORTANT INFORMATION ABOUT SAFETY DEVICES
PHOTO EYES
When properly connected and aligned, the photo eye will detect
an obstruction in the path of its invisible light beam. If an
obstruction breaks the light beam while the door is closing, the
door will stop and typically reverse to the full open position.
The photo eyes must be installed facing each other across the
door, no more than 6" (15 cm) above the floor.
SENSING EDGES
When properly connected, the sensing edge will make contact
with an obstruction while the door is closing, the door will stop
and typically reverse to the full open position.
The sensing edge must be installed on the bottom of the door.
See Optional Safety Device Configurations for wiring information.
Photo Eyes
Safety Edge
Sensing Edge
Photo Eye

15
OPTIONAL SAFETY DEVICE CONFIGURATIONS
^^^^
AUX ANT
AUX ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC LEARN
1
LMEP1 LMEP2
2345 67
STOP CLOSE OPEN
^^^^
AUX ANT
AUX ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC LEARN
1
LMEP1 LMEP2
234567
STOP CLOSE OPEN
^^^^
AUX ANT
AUX ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC LEARN
1
LMEP1 LMEP2
234567
STOP CLOSE OPEN
^^^^
XANT
ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC LEARN
1
LMEP1 LMEP2
2345 67
STOP CLOSE OPEN
CPS Photo-Eyes
4-wire electric sensing edge
CPS Photo-Eyes with 2-wire sensing edge
CPS Photo-Eyes with 4-wire sensing edge
2-Wire electric or pneumatic sensing edge
2-wire electric or pneumatic sensing edge
2-wire electric or pneumatic sensing edge
(White)
(White/Black)
(White/Black)
(White)
(White)
(White/Black)
(White)
(White/Black)
NOTE: When installing model CPS-LN4, connect the brown wire to
terminal 1 and the blue wire to terminal 2.

16
LOGIC BOARD LAYOUT
AUX ANT
^^^^
AUX ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC LEARN
1
LMEP1 LMEP2
2345 67
STOP CLOSE OPEN
ITEM DESCRIPTION FUNCTION
1 Open Button Open Door
2 Close Button Close Door
3 Stop Button Stop Door
4 Learn Button Programs the remote controls and
performs additional programming
5 Timer to Close Button Programs the Timer to Close
6 Purple Wire Antenna Primary Antenna
7 Auxiliary Antenna Connection For use with external antenna kit -
EXT-ANT. Not Provided
8 LED Used during programming and
diagnosing error codes
9 Field Wiring Terminal Field wiring connections
10 Factory Wiring Connector Factory wiring harness connection
5
10
9
8
7
6
4321

17
BASIC PROGRAMMING
DETERMINE THE WIRING TYPE
The functionality of this operator is based on the wiring type. The
operator is shipped from the factory in standard C2 wiring type
(factory default). Some wiring types will require an optional
safety device. Refer to the following descriptions of wiring types,
requirements and programming.
NOTE: 1. The LED on the logic board will blink once when in C2
and twice when in B2.
2. The operator will automatically convert to B2 wiring
(option D) when Monitored Safety Device is installed. If
the Monitored Safety Device is removed, the operator
will go into a Restricted Close mode**. Turn power
OFF and ON to reset wiring type.
** Restricted close mode requires a constant pressure close
command. The operator will begin closing after a 5 second
delay and will continue to close to the close limit switch. The
operator will stop if the pressure to close is released before
reaching the close limit.
To prevent possible SEVERE INJURY or DEATH, install
reversing sensors when:
• The radio is used.
• The 3-button control station is out of sight of the door.
• Or ANY other control (automatic or manual) is used.
Reversing devices are recommended for ALL installations.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTIONCAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
AB
C2 WIRING TYPE WITHOUT MONITORED SAFETY DEVICE
(Factory Default)
C2 WIRING TYPE WITH MONITORED SAFETY DEVICE
• Momentary contact to open and stop with constant
pressure to close.
• Open override that reverses when closing by any opening
device.
• Wiring for safety device to reverse. NOTE: The operator
will automatically convert to B2 wiring (option D) when
Monitored Safety Device is installed. (See accessories
page for Monitored Safety Devices)
• Timer to Close (TTC) feature not available.
• Momentary contact to open and stop with constant
pressure to close.
• Open override that reverses when closing by any
opening device.
• Wiring for safety device to reverse. NOTE: The operator
will automatically convert to B2 wiring (option D) when
Monitored Safety Device is installed. (See accessories
page for Monitored Safety Devices)
• Timer to Close (TTC) feature not available.
Remove any monitored safety devices.
Disconnect then reconnect power to the operator.
Press and hold the LEARN and STOP buttons until the LED goes
out (approximately 3 seconds).
Press and hold the LEARN and CLOSE buttons until the LED goes
out (approximately 3 seconds).
NON-MONITORED SAFETY DEVICE MONITORED SAFETY DEVICE
RESET TO C2 WIRING TYPE (Factory Default) TO PROGRAM
Sensing Edge
Photo Eye
TTC
LED
AUX ANT
R27
L5
TP1 C20
C9
C29
R24
J2
C21
J4
K2
LT
P1
C32
U4
D7
D6
D5
D4
R25
U1
C31
D14
C18
014A1030
^^^^
D9
LEARN
1234567
LMEP1 LMEP2 INTRLKCOM STOP CLOSE OPEN
STOP CLOSE OPEN
AUXANT
TTC
LED
AUX ANT
R27
L5
TP1 C20
C9
C29
R24
J2
C21
J4
K2
LT
P1
C32
U4
D7
D6
D5
D4
R25
U1
C31
D14
C18
014A1030
^^^^
D9
LEARN
1234567
LMEP1 LMEP2 INTRLKCOM STOP CLOSE OPEN
STOP CLOSE OPEN
AUXANT
Logic Board
Logic Board
Electrical Box
Electrical Box
D14
LED
LEARN
12345 67
STOP CLOSE OPEN
D14
LED
LEARN
12345 67
STOP CLOSE OPEN

18
CD
B2 WIRING TYPE WITHOUT MONITORED SAFETY DEVICE B2 WIRING TYPE WITH MONITORED SAFETY DEVICE
• Momentary contact to open, close and stop.
• Open override that reverses when closing by any opening
device.
• Wiring for safety device to reverse. NOTE: The operator
will automatically convert to B2 wiring (option D) when
Monitored Safety Device is installed. (See accessories
page for Monitored Safety Devices)
• Timer to Close (TTC) feature not available.
Requires a non-monitored safety device.
• Momentary contact to open, close and stop.
• Open override that reverses when closing by any
opening device.
• Wiring for safety device to reverse. NOTE: The operator
will automatically convert to B2 wiring when Monitored
Safety Device is installed. (See accessories page for
Monitored Safety Devices)
• Timer to Close (TTC) feature available.
Start with operator in factory default C2 mode.
Press and hold the LEARN and CLOSE buttons until the LED goes
out (approximately 3 seconds).
TO PROGRAM
TTC
LED
AUX ANT
R27
L5
TP1 C20
C9
C29
R24
J2
C21
J4
K2
LT
P1
C32
U4
D7
D6
D5
D4
R25
U1
C31
D14
C18
014A1030
^^^^
D9
LEARN
1234567
LMEP1 LMEP2 INTRLKCOM STOP CLOSE OPEN
STOP CLOSE OPEN
AUXANT
Logic BoardElectrical Box
D14
LED
LEARN
12345 67
STOP CLOSE OPEN
BASIC PROGRAMMING
NO PROGRAMMING REQUIRED
Sensing Edge Photo Eye
MONITORED SAFETY
DEVICE
NON-MONITORED
SAFETY DEVICE

19
BASIC PROGRAMMING
TIMER TO CLOSE (TTC)
Timer to Close feature enables the operator to close from the
open limit after a preset time, adjustable from 5 to 60 seconds.
Requires LiftMaster monitored safety device.
TO PROGRAM
1. Begin with door in fully closed position.
2. Press and release the LEARN button (LED will light).
3. Press and release the TTC button.
4. Every press and release of the STOP button will add 5 seconds
to the Timer to Close. Example: 30 second TTC = 6 presses of
the STOP button.
5. Press and release the TTC button to exit programming mode.
6. The LED will flash once per 5 seconds of timer setting.
The TTC will become active after completion of the next open
cycle.
NOTE: The LED does not indicate that timer is running.
REMOTE CONTROLS
SINGLE BUTTON REMOTE CONTROL
Built in 315 MHz radio receiver permits as many as 20
Security✚®remote controls or dip switch remote controls in any
combination.
TO PROGRAM
1. Press and release the LEARN button (LED will light).
2. Press and hold the button on the remote control until the
LED flashes rapidly, then release to complete programming
(LED will go out).
3. Repeat steps 1 and 2 for additional remote controls.
NOTICE: To comply with FCC and or Industry Canada (IC) rules, adjustment or modifications of this
receiver and/or transmitter are prohibited, except for changing the code setting or replacing the
battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.
MODE OPEN CLOSE STOP REVERSE WHILE TTC
CLOSING RESET
B2 X X X X
B2 X
with X (3 button X X X WHEN
TTC remote) OPEN
C2 X X X
RADIO OPERATION
3-BUTTON REMOTE CONTROL TO OPERATE AS A WIRELESS
3-BUTTON CONTROL STATION
NOTE: The feature will use 3 of the 20 memory channels in the
operator.
TO PROGRAM
1. Press and hold the LEARN button
(LED will light).
2. Press the desired button on the logic
board (OPEN, CLOSE or STOP). Release both buttons.
3. Press and hold the desired button of the remote control until
LED flashes rapidly, then release.
4. Repeat steps 1 through 3 to program additional buttons.
TTC
LED
AUX ANT
R27
L5
TP1 C20
C9
C29
R24
J2
C21
J4
K2
LT
P1
C32
U4
D7
D6
D5
D4
R25
U1
C31
D14
C18
014A1030
^^^^
D9
LEARN
1234567
LMEP1 LMEP2 INTRLKCOM STOP CLOSE OPEN
STOP CLOSE OPEN
AUXANT
TTC
LED
AUX ANT
R27
L5
TP1 C20
C9
C29
R24
J2
C21
J4
K2
LT
P1
C32
U4
D7
D6
D5
D4
R25
U1
C31
D14
C18
014A1030
^^^^
D9
LEARN
1234567
LMEP1 LMEP2 INTRLKCOM STOP CLOSE OPEN
STOP CLOSE OPEN
AUXANT
TTC
LED
AUX ANT
R27
L5
TP1 C20
C9
C29
R24
J2
C21
J4
K2
LT
P1
C32
U4
D7
D6
D5
D4
R25
U1
C31
D14
C18
014A1030
^^^^
D9
LEARN
1234567
LMEP1 LMEP2 INTRLKCOM STOP CLOSE OPEN
STOP CLOSE OPEN
AUXANT
D14
COM INTRLK STOP
LED
OPENCLOSE
LEARN
1
M
EP1 LMEP2
2345 67
STOP CLOSE OPEN
D14
COM INTRLK STOP
LED
C
L
TTC LEARN
1
LMEP1 LMEP2
2345
STOP CL
O
D14
COM INTRLK STOP
LED
OPENCLOSE
LEARN
1
M
EP1 LMEP2
2345 67
STOP CLOSE OPEN
Logic Board
Logic Board Timer To Close Button
Logic Board
Electrical Box
Electrical Box
Open
Electrical Box
TO ERASE ALL REMOTE CONTROLS
Press and hold the LEARN button (over 5 seconds) until the
LED goes out. All programmed remote controls will be erased.
CLEAR THE TIMER TO CLOSE (TTC)
1. Press and release the LEARN button (LED will light.)
2. Press and hold the TTC button for 6 seconds.
3. Release the TTC button (LED will go out).
The TTC will no longer be active.
TIMER DEFEAT
The TTC can be temporarily disabled by pressing a STOP button.
TTC will become enabled after the next open command.
OPEN
TO
PRESS
R ING
OPEN
CLOSE
Stop
Close
TO VERIFY TIMER TO CLOSE (TTC) SETTING
1. Press and release the LEARN button.
2. Press and release the TTC button.
3. Press and release the TTC button a second time.
4. The LED will flash once per 5 seconds of timer setting.

20
Turn on power, LED will flash 7 times on power up. Test all
controls and safety devices to make sure they are working
properly. It may be necessary to refer back to the Adjustment
section for adjustment of the limits.
IMPORTANT NOTES:
• Do not leave power to the operator on unless all safety and
entrapment protection devices have been tested and are
working properly.
• Be sure you have read and understand all safety instructions
included in this manual.
• Be sure the owner or person(s) responsible for operation of the
door have read and understand the safety instructions, know
how to electrically operate the door in a safe manner and how
to manually disconnect the door from the operator.
To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect ALL electric power BEFORE
performing ANY maintenance.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
TESTING
TEST 3-BUTTON CONTROL STATION
1. Press OPEN button. (The door should move in the open
direction.)
2. Press STOP button. (The door should stop.)
3. Press CLOSE button. (The door should move in the close
direction.)
4. Release CLOSE button. Door should stop if in C2 mode. (The
door should continue closing if in B2 mode.)
5. Press STOP button. (The door should stop.)
TEST LIMIT ADJUSTMENT
1. Press OPEN button. (The door should open.)
2. Allow the door to fully open.
3. Press CLOSE button. (The door should close.)
4. Allow the door to fully close.
5. If the limits are not set properly, remove power and adjust
limits (refer to Adjustment section).
TEST THE SAFETY DEVICES (IF INSTALLED)
1. Open the door.
2. Place an obstruction in the path of the photo eyes or sensing
edge.
3. Press the CLOSE button.
The door should not close if photo eyes are installed. The door
should close to obstruction and reverse if sensing edge is
installed.
4. Remove the obstruction.
5. Press CLOSE button. Door should close.
If door did not reverse from obstruction, check safety devices.
TEST REMOTE CONTROL
* Requires B2 wiring type and compatible LiftMaster remote
control. In C2 wiring the remote control will open the
door only.
1. Press remote control button.
2. Door should open. Allow the door to fully open.
3. Press remote control button.
4. Door should close. Allow door to fully close.