• BEFORE attempting to install, operate or maintain the operator,
Mechanical
Electrical
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.
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.
2
Page 3
APPLICATIONS
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.
Maximum Door Area (SQ. FT)
24 ga. Steel 22 ga. Steel
Aluminum
Grilles
ROLLING DOOR
---
---
Fiberglass
------
SECTIONAL DOOR
320275
SQ. FT
Aluminum
Doors
24 ga. Steel 20 ga. Steel
24 ga.
22 ga. Steel
Aluminum
Doors
---
------
20 ga. Steel
Wood Doors
24 ga. Steel
Insulated
250
20 ga. Steel
18 ga. Steel
---
---
16 ga. Steel
20 ga. Steel
Insulated
16 ga. Steel
---------
20 ga.
---
200160120
Steel
Insulated
16 ga.
Steel
Insulated
---
16 ga.
Steel
Insulated
NOTE: On steel insulated doors, a 24 ga. Back panel is assumed.
3
Page 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"
A
A
A
A
6.50"
B
B
B
B
OPERATOR DIMENSIONS
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: 60-70 LBS. (27.22-31.75 kg)
12.69"
(32.23 cm)
6.34"
(16.1 cm)
6.34"
(16.1 cm)
6.13"
(15.57 cm)
MOUNTING DIMENSIONS
A - Wall Mounting
B - Bracket Mounting (rolling 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.
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.
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.
Output Shaft
Right Handed Operator
5
Page 6
INSTALL OPERATOR DRIVE SPROCKET
1
ASSEMBLY
Right hand assembly
Drive Shaft
Operator Drive
Sprocket
Operator
Left hand assembly
Operator
Drive Shaft
Operator Drive
Sprocket
TYPICAL INSTALLATION
DETERMINE MOUNTING LOCATION FOR OPERATOR
1
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
Door Shaft
Operator
Drive Shaft
Optimum Distance 12 - 15"
Shelf or bracket mounting
Door Shaft
Operator
Drive Shaft
Optimum Distance 12 - 15"
6
Page 7
TYPICAL INSTALLATION
NOTE: All illustrations will depict a typical right hand wall mount installation.
PLACE DOOR SPROCKET ON DOOR SHAFTPLACE OPERATOR DOOR SPROCKET ON OPERATOR
23
Operator
Door Shaft
Door Sprocket
WRAP DRIVE CHAIN AROUND DOOR SPROCKET
4
Door Sprocket
Drive Shaft
Operator Drive
Sprocket
WRAP DRIVE CHAIN AROUND OPERATOR SPROCKET
5
Drive Chain
Operator Drive
Sprocket
Door Sprocket
Electrical Box
Master Link
Drive Chain
7
Page 8
POSITION OPERATOR
6
Adjust operator until chain is taut (not tight). If chain
is too tight, it may cause damage to operator.
TYPICAL INSTALLATION
Set Screw
Key
Door Sprocket
Key
Door
Door Sprocket
Operator Drive
Sprocket
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.
8
Page 9
SECURE OPERATOR
7
Secure operator to mounting surface using
appropriate method and hardware. Mounting
template can be found on carton.
INSTALL MANUAL DISCONNECT SYSTEMS
8
TYPICAL INSTALLATION
Operator
Operator
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.
Secure chain retaining bracket to wall
Wrap hand chain around hand
BA
chain wheel and through chain
guide
(MH AND MHS ONLY)(MH AND MHS ONLY)
Chain Retaining Bracket
(with pad locking provisions)
4'
above
Secure keyhole bracket to wall
A
floor
Hand Chain
Hand
Chain
Wheel
(MJ ONLY)
Keyhole
Bracket
4'
above
floor
Connect the ends of the hand chain
2'
Floor
9
Page 10
TYPICAL INSTALLATION
WARNING
WARNINGWARNING
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.
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.
• 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.
operator’s terminal is 12 AWG. When a larger wire gauge
is required, the wire must be gauged down to 12 AWG.
REMOVE COVER
9
Electrical Box Cover
ATTACH POWER AND GROUND
11
WIRES TO TERMINALS
Operator
Ground
Neutral
Hot
RUN POWER WIRES TO ELECTRICAL BOX
10
ACCORDING TO LOCAL ELECTRICAL CODES
Electrical Box
Sealing Nut
(Not Provided)
Electrical
Box
Power
Conduit
Control
Line Power 115 Vac Single Phase
Do NOT turn power on until you have finished making ALL power and control wiring connections.
10
Page 11
^
O
OPEN
STOP
^
CLOSE
INSTALL 3-BUTTON CONTROL STATION
^
O
O
PEN
STOP
^
CLOSE
^
O
OPEN
STOP
^
CLOSE
WARNING
CAUTIONCAUTION
WARNING
WARNING
AUXANT
^^^^
AUXANT
AUX ANT
D14
COMINTRLK STOP
LED
OPENCLOSE
12
Select location for 3-button control station
Remove cover
Screws
Secure using
appropriate
hardware
INSTALLATION
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.
Select appropriate knockout
and run wire according to
local electrical code from
operator to 3-button control
Wall
station.
Operator
Conduit
5' (1.5 m)
Ground
Wire 3-button control station
Logic Board
TTC
Remove factory
jumper if external
interlock is used
3-Button
Control Station
LEARN
STOP CLOSE OPEN
TTC
1
234567
LMEP1LMEP2
R27
1
LMEP1 LMEP2
LEARN
D14
LED
23 45 67
STOP CLOSE OPEN
COM INTRLK STOP
Stop
Close
Power
Control
Open
OPENCLOSE
3-Button
Control Station
Knockout
Secure warning signs to wall
OPEN
^
^
CLOSE
O
STOP
Common
11
Page 12
INSTALLATION
SETUP RADIO ANTENNA
13
Option A
Locate the wire antenna on the outside of the electrical box.
Cut the wire tie closest to the edge of the electrical box.
Cut this Wire Tie
Option B
Locate the wire antenna on the outside of the electrical box.
Cut wire ties and discard standoff.
Cut these Wire Ties
Press the plastic standoff into the hole in the side of the
electrical box.
Antenna
Wire
Ties
Standoff
Cut
Wire Tie
Antenna
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.
Wire
Ties
Antenna
Cut Wire
Ties
12
Page 13
1
WARNING
WARNINGWARNING
ADJUST THE LIMITS
ADJUSTMENT
To avoid SERIOUS personal INJURY or DEATH from
electrocution, disconnect electric power BEFORE moving limit
nuts or adjusting clutch nut.
Depress retaining plateAdjust OPEN limit
Retaining Plate
OPEN Limit Nut
OPEN Limit Switch
CLOSE Limit Nut
CLOSE Limit Switch
Increase Door
Travel
SAFETY Limit
Switch
Decrease Door
Travel
Adjust CLOSE limit
Decrease Door
Travel
NOTE: When retaining plate is released, verify that the retaining plate is fully seated with the notches of the limit nut.
ADJUST THE CLUTCH
2
• 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.
Increase Door
Travel
Replace Cotterpin
AB
To Loosen
Bend ends
of cotterpin
to secure
clutch nut
Clutch Nut
To Tighten
13
Page 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
Photo Eye
Safety Edge
14
Sensing Edge
Page 15
^^^^
AUXANT
AUX ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC
LEARN
1
LMEP1 LMEP2
23 45 67
STOP CLOSE OPEN
^^^^
AUXANT
AUX ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC
LEARN
1
LMEP1 LMEP2
2345 67
STOP CLOSE OPEN
^^^^
AUXANT
AUX ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC
LEARN
1
LMEP1 LMEP2
2345 67
STOP CLOSE OPEN
^^^^
XANT
ANT
D14
COM INTRLK STOP
LED
OPENCLOSE
TTC
LEARN
1
LMEP1 LMEP2
23 45 67
STOP CLOSE OPEN
CPS Photo-Eyes
OPTIONAL SAFETY DEVICE CONFIGURATIONS
(White)
(White/Black)
NOTE: When installing model CPS-LN4, connect the brown wire to
terminal 1 and the blue wire to terminal 2.
CPS Photo-Eyes with 2-wire sensing edge
2-wire electric or pneumatic sensing edge
(White)
(White/Black)
CPS Photo-Eyes with 4-wire sensing edge
(White/Black)
4-wire electric sensing edge
(White)
2-Wire electric or pneumatic sensing edge
2-wire electric or pneumatic sensing edge
(White/Black)
(White)
15
Page 16
LOGIC BOARD LAYOUT
3
4
5
2
1
6
AUX ANT
AUX ANT
7
^^^^
TTC
LEARN
D14
LED
1
23 45 67
LMEP1 LMEP2
8
STOP CLOSE OPEN
COM INTRLK STOP
9
OPENCLOSE
10
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
16
Page 17
BASIC PROGRAMMING
WARNING
CAUTIONCAUTION
WARNING
WARNING
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.
C2 WIRING TYPE WITHOUT MONITORED SAFETY DEVICE
A
(Factory Default)
• 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.
NON-MONITORED SAFETY DEVICE
Sensing Edge
C2 WIRING TYPE WITH MONITORED SAFETY DEVICE
B
• 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.
MONITORED SAFETY DEVICE
Photo Eye
RESET TO C2 WIRING TYPE (Factory Default)
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).
Electrical Box
TP1
C9
L5
^^^^
AUX ANT
AUXANT
C18
R27
J2
D14
TTC
LED
1234567
LMEP1 LMEP2
D9
Logic Board
D7
D5
U4
D6
D4
J4
014A1030
C32
C20
R25
U1
C21
C31
K2
LT
LEARN
STOPCLOSE OPEN
C29
R24
P1
STOP CLOSE OPEN
INTRLKCOM
LEARN
STOP CLOSE OPEN
LED
D14
123 45 67
TO PROGRAM
Press and hold the LEARN and CLOSE buttons until the LED goes
out (approximately 3 seconds).
Electrical Box
C9
L5
^^^^
AUX ANT
AUXANT
R27
J2
TTC
1234567
LMEP1 LMEP2
D9
Logic Board
D7
D5
U4
D6
D4
J4
014A1030
C32
C20
TP1
R25
U1
C21
C31
C18
D14
K2
LT
LEARN
STOPCLOSE OPEN
C29
LED
R24
P1
STOP CLOSE OPEN
INTRLKCOM
123 45 67
LED
D14
LEARN
STOP CLOSE OPEN
17
Page 18
BASIC PROGRAMMING
B2 WIRING TYPE WITHOUT MONITORED SAFETY DEVICE
C
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 (option D) when
Monitored Safety Device is installed. (See accessories
page for Monitored Safety Devices)
• Timer to Close (TTC) feature not available.
NON-MONITORED
SAFETY DEVICE
Sensing Edge
B2 WIRING TYPE WITH MONITORED SAFETY DEVICE
D
• 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.
MONITORED SAFETY
DEVICE
Photo Eye
TO PROGRAM
Start with operator in factory default C2 mode.
Press and hold the LEARN and CLOSE buttons until the LED goes
out (approximately 3 seconds).
Logic BoardElectrical Box
D7
D5
U4
D6
D4
J4
014A1030
C32
C20
TP1
R25
C9
AUX ANT
AUXANT
J2
D9
L5
^^^^
C18
R27
D14
TTC
LED
1234567
LMEP1 LMEP2
U1
C21
C31
K2
LT
LEARN
STOPCLOSE OPEN
C29
R24
P1
STOP CLOSE OPEN
INTRLKCOM
LED
D14
LEARN
STOP CLOSE OPEN
123 45 67
NO PROGRAMMING REQUIRED
18
Page 19
BASIC PROGRAMMING
L
O
OPEN
REMOTE CONTROLS
SINGLE BUTTON REMOTE CONTROL
Built in 315 MHz radio receiver permits as many as 20
Security✚
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
3. Repeat steps 1 and 2 for additional remote controls.
Electrical Box
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
2. Press the desired button on the logic
3. Press and hold the desired button of the remote control until
4. Repeat steps 1 through 3 to program additional buttons.
®
remote controls or dip switch remote controls in any
LED flashes rapidly, then release to complete programming
(LED will go out).
Logic Board
STOP CLOSE OPEN
LEARN
D14
L5
^^^^
R27
TTC
1234567
LMEP1 LMEP2
R25
U1
C21
C31
C18
D14
K2
LT
LEARN
STOPCLOSE OPEN
C29
LED
R24
P1
STOP CLOSE OPEN
INTRLKCOM
C9
AUX ANT
AUXANT
J2
D9
D7
D5
U4
D6
D4
J4
014A1030
C32
C20
TP1
LED
23 45 67
1
EP1 LMEP2
COM INTRLK STOP
OPENCLOSE
Open
Close
(LED will light).
Stop
board (OPEN, CLOSE or STOP). Release both buttons.
LED flashes rapidly, then release.
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.
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.
Electrical Box
C9
L5
^^^^
AUX ANT
AUXANT
R27
J2
TTC
1234567
LMEP1 LMEP2
D9
014A1030
C20
TP1
C21
C18
D14
LEARN
STOPCLOSE OPEN
LED
STOP CLOSE OPEN
INTRLKCOM
Logic BoardTimer To Close Button
D7
D5
U4
D6
D4
J4
C32
R25
U1
C31
K2
LT
C29
R24
P1
TTC
D14
LED
1
2345
LMEP1 LMEP2
LEARN
STOP CL
COM INTRLK STOP
C
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.
Electrical Box
014A1030
C20
TP1
C9
C21
L5
^^^^
AUX ANT
AUXANT
C18
R27
J2
D14
LEARN
STOPCLOSE OPEN
TTC
LED
1234567
LMEP1 LMEP2
STOP CLOSE OPEN
INTRLKCOM
D9
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.
Logic Board
STOP CLOSE OPEN
LEARN
D14
D7
D5
U4
D6
D4
J4
C32
R25
U1
C31
K2
LT
C29
R24
P1
LED
23 45 67
1
EP1 LMEP2
COM INTRLK STOP
OPENCLOSE
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.
RADIO 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
19
Page 20
WARNING
WARNINGWARNING
TESTING
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.
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).
To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect ALL electric power BEFORE
performing ANY maintenance.
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.
20
Page 21
WARNING
CAUTIONCAUTION
WARNING
WARNING
MANUAL DISCONNECT
This operator has provisions for manually operating the door in
case of emergency or power failure. Refer to the appropriate
instructions below for your model operator.
MODEL MH
These operators are equipped with a manual hoist. An electrical
interlock will disable the electrical controls when the hoist is
used. To operate the hoist:
1. Pull the disconnect chain (sash chain) to engage the hoist
mechanism. The disconnect chain may be locked in position
by slipping the end through the keyhole of the chain keeper
mounted on the wall.
2. Operate the door in the desired direction by pulling on one side
or the other of the continuous loop hoist chain.
3. The disconnect chain must be released from the chain keeper
before the door will operate again electrically.
To prevent possible SERIOUS INJURY from a moving chain:
• DISCONNECT electric power to the operator BEFORE
manually operating your door.
• If possible, use emergency disconnect ONLY when door is
CLOSED. Weak or broken springs or unbalanced door
could result in an open door falling rapidly and/or
unexpectedly.
• NEVER use emergeny disconnect unless doorway is clear
of persons and obstructions.
Chain Keeper
(with pad locking provisions)
MODEL MJ
This operator has a floor level disconnect chain to disconnect the
door from the door operator.
1. To disengage, pull the chain and secure in the disengaged
position by slipping the end through the keyhole bracket
mounted on the wall. Or if emergency egress device is used,
pull handle to disengage operator from door.
2. The door may now be pushed up or pulled down manually.
3. Release the disconnect chain or reset the emergeny egress
device to operate the door again electrically.
MODEL MHS
This 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.
1. Refer to Model MH instructions for hoist operation.
Electrical Interlock with Hoist for Models MH and MHS
Keyhole Bracket
Manual Disconnect for Models MJ
2. Refer to Model MJ instructions for manual operation.
When operator is disconnected by the manual operation chain,
hoist and electrical operation will not function.
21
Page 22
TROUBLESHOOTING
Technical Support 1-800-528-2806
CONDITIONPOSSIBLE CAUSE FIX
OPERATOR WILL NOT
RESPOND TO ANY
COMMANDS
OPERATOR MAKES
NOISE BUT DOOR DOES
NOT MOVE
OPERATOR MOVES IN
THE WRONG DIRECTION
DOOR DRIFTS AFTER
OPERATOR STOPS
DOOR OPENS/CLOSES
TOO FAR
DOOR REVERSES
UNEXPECTEDLY
TTC NOT FUNCTIONING
RADIO FUNCTIONALITY NOTE: Built in radio receiver compatible with all LiftMaster 315MHz remote control devices.
NO RESPONSE
REMOTE CANNOT BE
LEARNED
A) No power
B) Stop circuit not complete
C) Stuck button on 3-button
control station
D) Interlock input activated
E) Motor overload tripped
F) Accessory failure
G) Possible component failure
A) Clutch slipping
B) Brake not releasing (if present)
C) Door operation problem
OPEN and CLOSE button wiring
connection reversed
A) Door not balanced properly
B) Clutch slipping
C) Brake not functioning properly
Limits not adjusted properly
Intermittent Safety Device
activation
A) Monitored Safety Devices
B) TTC temporarily disabled
C) TTC not programmed properly
A) Remote control is not
programmed
B) Remote control not compatible
C) Low battery
A) Low battery
B) Remote control not compatible
➤ Verify primary line voltage (120Vac,60Hz) is present at terminals L1 & L2. The
LED will flash when power is present.
➤ Verify Stop Button input (terminals 3 & 5) is properly wired and stop button is
not stuck.
➤ Verify that all buttons are actuating freely and releasing properly.
➤ Verify jumper is located at terminals 3 & 4 if interlock is not present.
➤ Verify interlock is properly wired and not activated.
➤ Overload is internal within motor. Allow to cool and retry.
➤ Attempt to close by holding the CLOSE button for more than 5 seconds. If
door closes, check accessory for proper wiring, polarity, connections or
damage.
➤ Verify safety eyes are aligned or safety edge is not activated.
➤ Call Technical Support for assistance.
➤ Adjust clutch, see ADJUSTMENT section.
➤ Verify brake assembly operation and wiring.
➤ Disconnect trolley and check door for proper operation.
➤ Check 3-button control wiring.
➤ Disconnect trolley assembly and check door for proper operation.
➤ Adjust clutch, see ADJUSTMENT section.
➤ Check brake mechanism to ensure brake lever is free and brake pads are
engaging the brake disc.
➤ Adjust limits. See ADJUSTMENT section.
➤ Check all connections.
➤ Check all connections. Verify Photo eyes are not blocked and the sensing edge
is not activated.
➤ Close and Open the door. TTC will be re-enabled.
➤ Reprogram TTC. See PROGRAMMING TTC section.
➤ See PROGRAMMING REMOTE CONTROLS section.
➤ Obtain qualified LiftMaster remote control device.
➤ Replace battery.
➤ Replace battery.
➤ Obtain qualified LiftMaster remote control device.
POOR RADIO RANGE
A) Low battery in remote
B) Antenna not configured
C)
Ambient radio interference or
building structural issue
➤ Replace battery.
➤ See SETUP RADIO ANTENNA.
➤ Use EXTERNAL ANTENNA kit (see ACCESSORIES page).
22
Page 23
TROUBLESHOOTING CONT.
ANT
J2
AUX ANT
COM INTRLK STOP
LED
OPENCLOSE
TTC
LEARN
1
LMEP1 LMEP2
234567
STOP CLOSE OPEN
OPEN
CLOSE
STOP
The status of the operator can be determined by counting the number of flashes of the LED on the logic board.
DIAGNOSTIC LED TABLE
# OF LED FLASHESSTATUSFIX
1System OK. Operating in C2 modenone
2System OK. Operating in B2 modenone
3Stuck CLOSE buttonCheck for stuck close button or shorted close wire
4Monitored Safety Device failureCheck for: 1) Misaligned or blocked photo eyes. 2) Issue with Monitored
Sensing Edge and/or wiring.
5Incorrect motor directionReverse the yellow and red motor wires on the capacitor.
6Maximum run timer has timed out
(Maximum run time = 90 seconds)
7Logic Board FailureReplace Logic Board. NOTE: It is normal for the logic board LED to flash 7 times
Check clutch adjustment. Door height or speed may exceed the range the
operator can travel. Call Technical Support for assistance.
when power is applied or cycled to the operator. (Not a logic board failure.)
DIAGRAM
Green
** If interlock is not
used, wires are
capped together.
Brake (Optional)
Capacitor
Motor
Interlock
Open Limit
Switch
Blue
Blue*
Brown**
Brown**
*
Grey
* If brake is not supplied,
Red
Yellow
Orange
Purple
Yellow
wires are capped separately
Red
Yellow
Grey
Safety Limit
Switch
Close Limit
Switch
Black
Black
Remove Jumper
to install external
door interlock.
L2
L1
23
Page 24
REPAIR PARTS - ELECTRICAL BOX
4
K3
K4
1
K2
2
K1
K5
SERVICE KITS
ITEM PART # DESCRIPTION
K1 K72-33872-1 Limit Switch Shaft Kit
Complete with: Limit shaft, limit
nuts, limit bearings, limit sprocket,
washers, compression ring, roll pin
and e-ring
Rugged composite housing. (Wireless controls
can not be used in place of hardwired
controls.)
WPB3LMWireless 3 Button Control Station
SECURITY✚®:
Rugged composite housing. (Wireless controls
can not be used in place of hardwired
controls.)
WKP5LMWireless Access Control Keypad
SECURITY✚®:
Rugged composite housing. (Wireless controls
can not be used in place of hardwired
controls.)
CONTROL STATIONS
ENTRAPMENT PROTECTION DEVICES
CPS-LN4
Commercial Protector System:
Provides protection on doors up to 45' wide.
NEMA-4 rated.
CPS-L
Commercial Protector System:
Provides protection on doors up to 30' wide.
65-8202
Vehicle Detection System
Pneumatic Edge Kit
WIRE
65-7WIREL
7 Conductor 20 AWG Wire (500'):
Recommended for control wiring.
21-2LM
2-Strand 22 AWG Wire (500'):
Color coded, white and white/black.
50-104-1
Coil Cord 18 AWG Wire (20'):
Black coil cord, 2 wire, 18 AWG, 20'
extended.
02-102
2-Button Control Station:
Steel enclosure.
MOUNTING BRACKETS
10-12360
Mounting Brackets:
Angle mounting bracket, Painted steel, for
MJ, MH, and MHS.
02-103
OPEN
^
CLOSE
O
STOP
^
3-Button Control Station:
Steel enclosure.
10-9095
Medium Duty Angle Mounting Bracket:
Heavy-gauge steel bracket. May be welded.
For use with MJ, MGJ, and MH operators.
02-109
Key Control Station:
Indoor flush mount, NEMA 1.
ANTENNA
EXT-ANT
CHAIN TENSIONERS
71-6023
71-6125
Chain Tensioner:
For 1" shafts
Chain Tensioner:
For 1-1/2" shafts
86LM (15')
86LMT (25')
31
Antenna:
External kit for medium duty.
Antenna Extension Kit:
The antenna extension kit can be used with
EXT-ANT for maximum radio receiver range.
Page 32
CONTROL CONNECTION DIAGRAM
n
IMPORTANT NOTES:
1. The 3-Button Control Station provided must be connected for operation.
2. If a STOP button is not used, a jumper must be placed between terminals 3 and 5.
3. If INTERLOCK is not used a jumper must be placed between terminals 3 and 4.
4. When adding accessories, install them one at a time and test each one after it is added to ensure proper installation and operatio
with the Commercial Door Operator.
3 BUTTON STATION OR 3 POSITION KEYSWITCH WITH SPRING RETURN TO CENTER AND STOP BUTTON
STANDARD
7635
Open
Close
2 OR MOREKEY LOCKOUT
7635
Open
Close
Open
Close
7635
Open
Close
Stop
Stop
2 BUTTON STATION OR 3 POSITION KEYSWITCH WITH SPRING RETURN TO CENTER
STANDARD
763
C2
MODE ONLY
Open
Close
DEVICE TO REVERSE
Note: For photo-eyes connection options see
OPTIONAL SAFETY DEVICE CONFIGURATION section.