Liftmaster Mh Quick Start Guide 01 34219

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QuickStart for the Model MJ/MH/MHS/MGJ Door Operator

MEDIUM DUTY LOGIC

This QuickStart is intended to highlight a typical installation. These instructions are not intended to be comprehensive. Since 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. Please consult the manual and/or a
qualified technician for further information.
NOTE: Intended for Professional Installation Only. Visit www.liftmaster.com to locate a professional installing dealer in your area.

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.

AN ENTRAPMENT PROTECTION DEVICE IS HIGHLY RECOMMENDED

Turn off power to the operator BEFORE manually operating your door.

INSTALLATION

Model MH
Determine Mounting Location for Operator

Wall Mount

Bracket Shelf Mount

These operators are equipped with a manual hoist. An electrical interlock will disable the
electrical controls when the hoist is used.

Wall Mount: The operator should generally be installed below
the door shaft, and as close to the door as possible.

1 Pull the disconnect chain (sash chain) to engage the hoist mechanism. The disconnect

Bracket Shelf Mount: The operator may be mounted either
above or below the door shaft.

chain may be locked in position by slipping the end through the keyhole of the chain
keeper mounted on the wall.

NOTE: The optimum distance between the door shaft and
operator drive shaft is between 12 - 15 inches.

2 Operate the door in the desired direction by pulling on one side or the other of the
continuous loop hoist chain.

Install the Operator
1 Place door sprocket on the door shaft. Do not insert the key at

3 The disconnect chain must be released from the chain retaining bracket before the door
will operate again electrically.

this time.

2

Place drive sprocket on the appropriate side of the operator.
Do not insert the key or set screw at this time.

3

Wrap chain drive around door sprocket and join roller chain
ends together with master link.

Model MHS

Optimum Distance
12" - 15"

Optimum Distance
12" - 15"

1 Refer to Model MH instructions for hoist operation.

4 Raise operator to approximate mounting position and position
chain over operator sprocket.

2 Refer to Model MJ instructions for manual operation.

5 Raise or lower operator until the chain is taut (not tight). Make

sure the operator output shaft is parallel to door shaft and
sprockets are aligned. When in position, secure the operator to
wall or mounting bracket.

6
7

Optional Mounting Bracket

When operator is disconnected by manual operation chain, hoist and electrical operation
will not function.

Align sprockets, insert key into keyway, and secure.

Models MJ and MGJ

Place hand chain around hand chain wheel (if provided).

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

Power and Ground Wiring Connections
8 Run the power wires through the power wiring conduit hole in

Run control wires through the control wiring conduit hole in the
electrical box enclosure. Follow ALL local electrical codes.

Adjustments
10 Adjust the limit switches to open and close door properly. Make
sure the limit nuts are positioned between the limit switches
before proceeding with adjustments.

through the keyhole bracket mounted on the wall. Or if emergency egress device is used,
pull handle to disengage operator from door.

Door Sprocket

the electrical box enclosure. Connect the power to the operator.
Connect the earth ground to the ground screw in the electrical
box enclosure. Follow ALL local electrical codes.

9

This operator includes both a floor level disconnect sash chain to disconnect the door from
the door operator and a disconnect sash chain with manual hoist operation that electrically
disables the operator controls.

Door Shaft

Drive Chain

Operator Drive
Sprocket

Be sure door sprocket is properly
aligned with operator drive sprocket before
securing to the shaft.

Hand Chain Wheel

Troubleshooting instructions inside cover of operator.

again electronically.
ELECTRICAL INTERLOCK WITH HOIST
FOR MODELS MH AND MHS

Chain Keeper
Clutch Shaft

Hand Chain

11 Remove cotter pin from nut on the clutch shaft. Back off clutch
nut until there is very little tension on the clutch spring. Tighten
clutch nut gradually until there is just enough tension to permit
the operator to move the door smoothly but to allow the clutch
to slip if the door is obstructed. Reinstall cotter pin when
finished.

2 The door may now be pushed up or pulled down manually.
3 Release the disconnect chain or reset the emergency egress device to operate the door

Chain Retaining Bracket
(4 feet above floor)

MANUAL DISCONNECT FOR MODELS MJ

Keyhole Bracket

QuickStart for the Model MJ/MH/MHS/MGJ Door Operator

MEDIUM DUTY LOGIC

This QuickStart is intended to highlight a typical installation. These instructions are not intended to be comprehensive. Since 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. Please consult the manual and/or a
qualified technician for further information.
NOTE: Intended for Professional Installation Only. Visit www.liftmaster.com to locate a professional installing dealer in your area.

PROGRAMMING
Requires LiftMaster Monitored Entrapment Protection (LMEP) device. See installation manual
for LiftMaster Monitored Entrapment Protection (LMEP) device selection and installation.

AN ENTRAPMENT PROTECTION DEVICE IS HIGHLY RECOMMENDED

LIMIT SWITCHES

REMOTE CONTROLS

115 V PH. 1 Power Connection

Built in 315 MHz radio receiver permits as many as 20 Security✚® remote controls or dip switch
remote controls in any combination.

9

L1

L2

Single Button Remote Control
and hold the button on the remote
and release the LEARN
1 Press
2 Press
control until the LED flashes rapidly, then
button (LED will light).

Retaining Plate

POWER WIRING

E
LOS

OP

EN

C

Limit Nuts

release to complete programming
(LED will go out).

R27

Power
Wiring
ONLY!

LEARN

TTC

STOP

CLOSE OPEN

D14
LED

1

2

3

4

5

6

To Erase All Remote Controls
and hold the LEARN button (over 5
1 Press
seconds) until the LED goes out. All
programmed remote controls will be erased.

7
R27

LEARN

TTC

STOP

CLOSE OPEN

D14
LED

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

1

POWER
WIRING
USE COPPER WIRE ONLY

AUX
AUX ANT

3

4

5

6

7

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

^^^^

ANT

2

AUX ANT

LEARN

TTC

STOP

CLOSE OPEN

D14
LED

1

2

3

4

5

6

7

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

SAF

Repeat steps 1 and 2 for additional remote controls.

ETY

14 AWG Minimum
Push

3-Button Remote Control to Operate as a Wireless 3-Button Control Station

Follow ALL local electrical codes

NOTE: The feature will use 3 of the 20 memory channels in the operator.

1

Direction Limit Nut Will Move During Travel

Press and release the LEARN
button (LED will light).

2

Press the desired button on the logic board
(OPEN, CLOSE or STOP). Release both buttons.

Press and hold the desired button of
the remote control until LED flashes
rapidly, then release.

3

R27

LEARN

TTC
D7
U4 D6

014A1030
C20

1

U1

C21

CLOSE OPEN
R27

LEARN

TTC

STOP

CLOSE OPEN

D14
LED

R25

C9

STOP

D14
LED

D4

C32

2

3

4

5

6

7

C31

TP1

D5

J4

1

2

3

4

5

6

7

L5
^^^^

AUX
AUX ANT
ANT

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

C18

R27
J2

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

TTC
D14

LEARN STOP CLOSE OPEN
LED
1

2

3

4

5

6

7

LMEP1

LMEP2

COM

INTRLK

STOP

CLOSE

OPEN

K2
LT
C29
R24
P1
AUX
AUX ANT

ANT

^^^^

AUX ANT

LEARN

TTC

STOP

CLOSE OPEN

D14
LED

1

2

3

4

5

6

7

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

D9

Repeat steps 1 through 3 to program additional buttons.

TIMER-TO-CLOSE
1

2

3

4

USE COPPER WIRE ONLY

5

6

Timer-to-Close feature enables the operator to close from the open limit after a preset time, adjustable from 5 to 60 seconds.

7

Timer Defeat

To Program
OPEN

CLOSE

STOP

INTRLK

COM

LMEP2

LMEP1

Begin with the door in fully closed position.
Press and release the LEARN
Press and release the TCC
button (LED will light).
button.

1
CONTROL WIRING

2

R27

16-22 AWG

R27

LEARN

TTC

STOP

LEARN

TTC

CLOSE OPEN

1

1

2

3

4

5

6

STOP

CLOSE OPEN

D14
LED

D14
LED

2

3

4

5

6

press and release of the STOP button
4
3 Every
will add 5 seconds to the Timer-to-Close.
Example: 30 second TTC = 6 presses of the
STOP button.

The TTC can be temporarily
disabled by pressing a STOP
button. TTC will become enabled
after the next open command.

Press and release the TTC button
to exit programming mode.
The LED will flash once per 5
seconds of timer setting.

R27

7

LEARN

TTC

7

STOP

CLOSE OPEN

R27

1

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

2

LEARN

TTC

D14
LED

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

STOP

CLOSE OPEN

D14
LED

3

4

5

6

7

1

2

3

4

5

6

7

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

CONTROL WIRING

AUX
AUX ANT

^^^^

ANT

AUX ANT

LEARN

TTC

STOP

CLOSE OPEN

D14
LED

1

2

3

4

5

6

7

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

The TTC will become active after completion of the next open cycle.
NOTE: The LED does not indicate that timer is running.

To Verify the Timer-To-Close (TCC) Setting
and release the TTC button a
and release the TCC
and hold the LEARN
1 Press
3 Press
2 Press
second time. The LED will flash once
button.
button (LED will light).

Clear the Timer-To-Close (TCC)
and hold the
and release the LEARN
3
2 Press
1 Press
TCC button for 6 seconds.
button (LED will light).

per 5 seconds of timer setting.

Release the TTC button (LED
will go out). The TTC will no
longer be active.

R27

LEARN

TTC

R27

LEARN

TTC

STOP

CLOSE OPEN

STOP

CLOSE OPEN

R27

R27

LEARN

TTC

D14
LED

D14
LED

STOP

CLOSE OPEN

LEARN

TTC

STOP

CLOSE OPEN

D14
LED

D14
LED

R27

R27

1

1

White/Black

2

3

4

5

6

2

3

4

5

6

7

LEARN

TTC

STOP

7

LED

1

2

1

3

4

5

6

2

3

4

6

7

1

2

3

4

5

6

7

STOP

CLOSE OPEN

D14
LED

7
1

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

2

3

4

5

6

7

ANT

^^^^

AUX
AUX ANT

ANT

^^^^

AUX ANT

LEARN

TTC

STOP

CLOSE OPEN

2

AUX ANT

LEARN

TTC

D14
LED

1

STOP

CLOSE OPEN

D14
LED

3

4

5

6

7
1

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

© 2009, The Chamberlain Group Inc.
All Rights Reserved

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN
LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

AUX
AUX ANT

01-34219

5

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN

White
LiftMaster Monitored Entrapment
Protection (LMEP)

LEARN

TTC

CLOSE OPEN

D14

2

3

4

5

6

7

LMEP1 LMEP2 COM INTRLK STOP CLOSE OPEN



---

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Author                          : The Chamberlain Group, Inc.

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