Chamberlain GH User manual

ogic
L4
INSTALLATION MANUAL
L3
GT
T AND APT
H, J, AND HJ
GH
A
L
E
R
T
S
Y
S
T
E
M
M
A
I
N
T
E
N
A
N
C
E
PATENT PENDING
The Maintenance Alert System™ allows the installer
to set an internal Maintenance Cycle Counter. The
Logic 4 operator incorporates a self-diagnostic
feature built into the (MAS) Maintenance Alert
System LED. An LED on the 3-button station will
signal when the set number of cycles/months is
reached or when the operator requires immediate
service.
THIS OPERATOR FEATURES THE ENHANCED
Radio Receiver
Built on Board
315MHz
NOT FOR RESIDENTIAL USE
Serial # Box
Installation Date
2 YEAR WARRANTYTHIS PRODUCT IS TO BE
INSTALLED AND SERVICED
BY A TRAINED DOOR
SYSTEMS TECHNICIAN
ONLY.
Operators are shipped in C2
operating mode.
Visit www.liftmaster.com to locate
a professional installing dealer in
your area.
CONTACT INFORMATION

TABLE OF CONTENTS
SAFETY INFORMATION 3
TROLLEY OPERATORS 4-12
Carton Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operator Specifications . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Maximum Door Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 6
ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9
Assemble the Operator (Models T and GT) . . . . . . . . . 7
Install the Chain (Models T and GT). . . . . . . . . . . . . . . 8
Assemble the Operator (Model APT) . . . . . . . . . . . . . . 9
TYPICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . .10-12
Install the Header Bracket . . . . . . . . . . . . . . . . . . . . . 10
Attach the Track to the Header Bracket . . . . . . . . . . . 11
Hang the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Attach the Door Arm . . . . . . . . . . . . . . . . . . . . . . . . . 12
HOIST AND JACKSHAFT OPERATORS 13-17
Carton Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operator Specifications . . . . . . . . . . . . . . . . . . . . . . .13-14
Maximum Door Area . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Weights and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 15
ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Assemble the Operator . . . . . . . . . . . . . . . . . . . . . . . 16
TYPICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . .16-17
Determine Mounting Location . . . . . . . . . . . . . . . . . . 16
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Install the Manual Disconnect . . . . . . . . . . . . . . . . . . 17
WIRING 18-19
Power and Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Control Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
ENTRAPMENT PROTECTION 20-22
LiftMaster Monitored Entrapment
Protection (LMEP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Install the Photoelectric Sensors (Provided) . . . . . . . . . 21
Mount the Photoelectric Sensors (Provided) . . . . . . . . . 22
Wire the LiftMaster Monitored Entrapment
Protection (LMEP) Devices . . . . . . . . . . . . . . . . . . . . . . 22
ADJUSTMENT 23-24
Limit Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Clutch Adjustment (Belt Drive Model Operators) . . . . . . 24
TESTING 25
MANUAL RELEASE 26-27
Emergency Disconnect System Model GT and T . . . . . . 26
Emergency Disconnect System Model APT . . . . . . . . . . 26
Emergency Disconnect System
Model H, GH, J, and HJ . . . . . . . . . . . . . . . . . . . . . . . . . 27
PROGRAMMING 28-35
Introduction to Programming. . . . . . . . . . . . . . . . . . . . . 28
Determine and Set Wiring Type . . . . . . . . . . . . . . . . . . . 29
Programming Remote Controls . . . . . . . . . . . . . . . . .30-31
Maintenance Alert System (MAS) . . . . . . . . . . . . . . . . . 32
Open Mid Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Timer-To-Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33-34
Car Dealer Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Maximum Run Timer (MRT) . . . . . . . . . . . . . . . . . . . . . 35
Resetting Factory Defaults - Clearing Memory . . . . . . . . 35
MAINTENANCE 36
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Life of Operator Feature (Odometer/Cycle Counter) . . . . 36
Brake (If Present). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
How to Order Repair Parts . . . . . . . . . . . . . . . . . . . . . . . 36
TROUBLESHOOTING 37-40
Diagnostic Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . 38
Troubleshooting Error Codes . . . . . . . . . . . . . . . . . . . . . 39
Troubleshooting Radio Functionality . . . . . . . . . . . . . . . 40
WIRING DIAGRAMS 41-42
Logic (Ver. 4.0) 1 Phase Wiring Diagram. . . . . . . . . . . . 41
Logic (Ver. 4.0) 3 Phase Wiring Diagram. . . . . . . . . . . . 42
ACCESSORIES 43
CONTROL CONNECTION DIAGRAM BACK COVER
Table of contents 2

SAFETY INFORMATION
TO REDUCE THE RISK OF SEVERE INJURY OR DEATH:
IMPORTANT INSTALLATION INSTRUCTIONS
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND
INSTRUCTIONS.
2. Install door operator ONLY on properly balanced and
lubricated door. An improperly balanced door may NOT
reverse when required and could result in SEVERE INJURY
or DEATH.
3. ALL repairs to cables, spring assemblies and other hardware
MUST be made by a trained door systems technician BEFORE
installing operator.
4. Disable ALL locks and remove ALL ropes connected to door
BEFORE installing operator to avoid entanglement.
5. Install door operator 8 feet (2.44 m) or more above floor.
6. NEVER connect door operator to power source until
instructed to do so.
7. NEVER wear watches, rings or loose clothing while installing
or servicing operator. They could be caught in door or
operator mechanisms.
8. Install control station:
• within sight of the door.
• out of reach of children at minimum height of
5 feet (1.5 m).
• away from ALL moving parts of the door.
9. Install the control station far enough from the door to
prevent the user from coming in contact with the door while
operating the controls.
10. Install the entrapment warning placard on wall next to the
control station in a prominent location that is visible from
the door.
11. Place manual release/safety reverse test label in plain view
on inside of door.
12. Upon completion of installation, test entrapment protection
device.
13. SAVE THESE INSTRUCTIONS.
WARNING
WARNING
WARNINGWARNING
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
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 repair or service of your commercial door and
gate operator unless you are an Authorized Service Technician.
• Operator intended to be installed on a properly balanced door
only. Make sure door is properly balanced before installing.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
WARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
SAFETY INFORMATION
Safety Information3

TROLLEY
4
OPERATOR SPECIFICATIONS
Carton inventory/Operator specifications - Trolley
TROLLEY OPERATORS
CARTON INVENTORY
Before beginning your installation check that all components were provided.
DESCRIPTION
Powerhead assembly
Owner’s manual and caution labels
Hardware box (includes fasteners, track spacers, trolley, door arm assembly, front idler and header mounting bracket)
3-Button control station with LED
Trolley drive chain: #48 for 1/3 and 1/2 HP,
#41 for 3/4 HP and higher (all GT models)
Entrapment Protection Device: Model CPS-U photoelectric sensors (standard)
NOTE: The tracks are shipped separately.
MOTOR
TYPE:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous duty
HORSEPOWER:
Model APT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2 HP
Model GT. . . . . . . . . . . . . . . . . . . . . . 1/2, 3/4, 1 and 1-1/2 HP
Model T . . . . . . . . . . . . . . . . . . . . . . . . 1/3, 1/2, 3/4 and 1 HP
SPEED (At rated load): . . . . . . . . . . . . . . . . . . . . . . .1725 RPM
VOLTAGE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model APT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115V 1 Phase
Model GT and T. . . . . . . . . . . . . . . . . . . . . 115/230V 1 Phase,
208/230/460/575V 3 Phase
CURRENT (Amperage):
Model T and GT
Voltage-Phase 1/3 HP 1/2 HP 3/4 HP 1 HP 1-1/2 HP
115-1Ø, 60Hz 8.5 11.2 13.6 16 20
230-1Ø, 60Hz 4.2 5.6 6.8 8 10
208/230-3Ø, 60Hz 3 3.1 4 6 7
460-3Ø, 60Hz 1.5 1.75 2 3 3.5
575-3Ø, 60Hz 1.3 1.4 1.6 1.8 2.75
Model APT
Voltage-Phase 1/2 HP
115-1Ø, 60Hz 11.2
ELECTRICAL
TRANSFORMER:. . . . . . . . . . . . . . . . . . . . . . . 24Vac Secondary
CONTROL STATION:. . . . . . . . . . . . . . .NEMA 3-Button Station
Open/Close/Stop w/LED
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . .C2 (Standard)
Momentary contact to OPEN & STOP, constant pressure to
CLOSE, plus wiring for sensing device to reverse and auxiliary
devices to open and close with open override. See page 29 for
optional wiring types and operating modes.
LIMIT ADJUST:. . . . . . . . . . Linear driven, fully adjustable screw
type cams. Adjustable to 24 feet.
SAFETY
DISCONNECT:. . . . . . . . . . . . . . . Quick disconnect door arm for
emergency manual door operation.
ENTRAPMENT PROTECTION:
LiftMaster Monitored Entrapment Protection (LMEP)
Photoelectric Sensors (CPS-U): . . . . . . . . . . . . . Through beam
used to provide non-contact safety protection.
Safety Edge (Optional): . . . . . . . .Electric or pneumatic sensing
device attached to the bottom edge of door.

5
TROLLEY
MAXIMUM DOOR AREA (SQ. FT.)
MODEL T
STANDARD SECTIONAL
24 ga.
22 ga.
Steel
Alum.
Doors
---
285
350
500
625
---
Fiberglass
Doors
---
310
400
560
640
20 ga.
Steel
Wood
Doors
24 ga.
Steel
Insul.
260
320
450
560
16 ga.
Steel
---
20 ga.
Steel
Insul.
175
250
325
400
---
---
16 ga.
Steel
Insul.
125
200
275
310
1/3 HP
1/2 HP
3/4 HP
1 HP
MODEL GT
STANDARD SECTIONAL
24 ga.
22 ga.
Steel
Alum.
Doors
---
350
500
575
625
---
Fiberglass
Doors
---
400
560
625
---
20 ga.
Steel
Wood
Doors
24 ga.
Steel
Insul.
320
450
500
550
16 ga.
Steel
---
20 ga.
Steel
Insul.
250
325
400
475
---
---
16 ga.
Steel
Insul.
200
250
300
380
1/2 HP
3/4 HP
1 HP
1-1/2 HP
MODEL APT
STANDARD SECTIONAL
20 ga.
Steel
Wood
Doors
24 ga.
Steel
Insul.
225
24 ga.
22 ga.
Steel
Alum.
Doors
Fiberglass
Doors
250
16 ga.
Steel
---
20 ga.
Steel
Insul.
150
---
---
16 ga.
Steel
Insul.
100
1/2 HP
Operator specifications/Maximum door area - Trolley
MECHANICAL
DRIVE REDUCTION:
Model APT and T. . . . . . . . . . Primary: Heavy duty (5L) V-Belt
Secondary: #41 chain/sprocket;
Output: #48 chain (1/3 and 1/2 HP Model T and APT)
or #41 chain (3/4 and 1 HP Model T ONLY)
Model GT. . . . . . . . . . . . . . . . . . . . . .Primary: 20:1 Heavy duty
worm gear-in-oil-bath speed reducer
Output: #41 chain
OUTPUT SHAFT SPEED:
Model APT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96 RPM
Model GT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.5 RPM
Model T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140 RPM
DOOR SPEED (not adjustable):
Model APT. . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7" per second
Model GT. . . . . . . . . . . . . . . . . . . . . . . . . . .11-12" per second
Model T . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12" per second
BRAKE: Solenoid actuated disc brake on 3/4 and 1 HP, standard
on Model GT (Available as an option for 1/3 and 1/2 HP)
BEARINGS: . . . . . . . . . . . . . . Output Shaft: Shielded ball bearing
Model APT and T. . . .Clutch Shaft: IronCopper sintered and oil
impregnated
OPERATOR SPECIFICATIONS

TROLLEY
6Weights and dimensions - Trolley
11.63"
(29.54 cm)
*Door Height Plus 4 feet (minimum)
*23.43"
(59.51 cm)
14"
(35.56 cm)
Highest Point of Door Travel
4"
(10.16 cm)
*- For Units with Brake add 3-1/2"
(Standard on APT, T 3/4 and T 1 HP models; Optional on T 1/3 and 1/2 HP models)
WEIGHTS AND DIMENSIONS
MODELS T AND APT
Hanging Weight: 80-110 lbs.
*
MODEL GT
Hanging Weight: 140 lbs.
Door Height Plus 4 feet (minimum)
13.05"
(33.15 cm)
18.5"
(46.99 cm)
17.5"
(44.45 cm)
4"
(10.16 cm)

7
TROLLEY
Assembly - Trolley
1
2
4
5
3
6
ASSEMBLE THE OPERATOR (MODELS T AND GT)
ASSEMBLY
NOTE: For Model APT assembly refer to page 9.
1Install the track spacers evenly over the length of the track.
Fasten the spacers to the track with bolt (A) and flange hex
nuts (B).
2Install the front idler to the track with bolts (F) and washers
(D).
3Assemble the trolley with the take up bolt (C), hex nuts (E),
and lock washer (D).
4Slide the trolley onto the track.
5Insert bolts (A) into the end of the track and loosely thread the
nuts (B) onto the ends of the bolts.
6Slide bolts (A) on the end of the track assembly into the “L”
slot in the operator and tighten nuts (B). Insert bolts (A) into
the holes on the end of the track and the operator. Secure the
track with nuts (B).
HARDWARE
Bolt 3/8"-16 x 3/4"
Bolt 3/8"-16 x 1"
Take Up Bolt
Lock Washer 3/8" Hex Nut 3/8"-16
Flange Hex Nut
3/8"-16
AB
C
DE
F

TROLLEY
8Assembly - Trolley
INSTALL THE CHAIN (MODELS T AND GT)
3˝
2˝
1
2
4
5
6
3
NOTE: For Model APT assembly refer to page 9.
1 Position the trolley 2 inches away from the front idler.
2 Attach the chain to the trolley threaded shaft using the master
link.
3 Run the chain along the track to the operator. Wrap the chain
around the operator drive sprocket.
4 Run the chain along the track to the front idler. Wrap the chain
around the front idler.
5 Attach the chain to the front of the trolley using the master
link.
6 Tighten the chain until the chain sags about 3 inches at the
mid point of the track.
MODEL T
MODEL GT

9
TROLLEY
ASSEMBLE THE OPERATOR (MODEL APT)
NOTE: If your model is not an APT, proceed to the next page. HARDWARE
Bolt 3/8"-16 x 3/4" Flange Hex Nut
3/8"-16
AB
Assembly - Trolley
1
2
6
3
3˝
10
4
7
8
9
5
Pull the release clip on the trolley and push the end of the
chain through the slot in the trolley.
Install the track spacers evenly over the length of the track.
Fasten the spacers to the track with bolt (A) and flange hex
nuts (B).
Install the front idler in the second set of holes on the end of
the track with bolts (A) and nuts (B).
Slide the trolley onto the track so the door arm hole faces the
front (towards the door).
Insert bolts (A) into the end of the track and loosely thread
the nuts (B) onto the ends of the bolts. Slide bolts (A) on the
end of the track assembly into the “L” slot in the operator and
tighten nuts (B).
Insert bolts (A) into the holes on the end of the track and the
operator. Secure the track with nuts (B).
Run the chain along the track to the front idler. Wrap the
chain around the front idler.
Run the chain along the track to the operator. Wrap the chain
around the operator drive sprocket.
Attach one end of the chain to the drive link using a master
link.
Attach the other end of the chain to the free end of the drive
link using a master link and making sure the chain has the
correct tension (the chain should sag about 3 inches at the
mid point of the track). The chain will need to be cut for
proper adjustment. The take-up bolt can be loosened or
tightened to adjust the slack of the chain. Slide the trolley
back and forth past the drive chain to ensure there is no
binding.
1
2
3
4
5
6
7
8
9
10

TROLLEY
10
Typical installation - Trolley
TYPICAL INSTALLATION
To prevent possible SERIOUS INJURY or DEATH:
• Header bracket MUST be RIGIDLY fastened to structural
support on header wall or ceiling, otherwise door might NOT
reverse when required. DO NOT install header bracket over
drywall.
• Concrete anchors MUST be used if mounting header bracket
or 2x4 into masonry.
• NEVER try to loosen, move or adjust door, springs, cables,
pulleys, brackets, or their hardware, ALL of which are under
EXTREME tension.
• ALWAYS call a trained door systems technician if door binds,
sticks, or is out of balance.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
WARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
1Close the door. Mark the center of the door with a vertical line,
extend the line onto the ceiling.
INSTALL THE HEADER BRACKET
2Open the door to the highest point of travel mark 4 inches
above the highest point of travel.
1
2
4
3
4"
5
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.
Typically, the operator may be mounted up to 24 inches off
center on torsion spring doors. Extension springs require center
mounting.
3
4
Center the header bracket on the vertical center line and the
horizontal line.
Drill the pilot holes for the header bracket.
5Fasten the header bracket with appropriate hardware
(not provided).

11
TROLLEY
Typical installation - Trolley
ATTACH THE TRACK TO THE HEADER BRACKET
HANG THE OPERATOR
1Secure the operator using the appropriate fasteners and
locking hardware that will support the weight of the operator.
1
1
3
2
To avoid possible SERIOUS INJURY from a falling operator:
• Fasten the operator SECURELY to structural supports of the
building.
• Concrete anchors MUST be used if installing ANY brackets
into masonry.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
1Align the track with the header bracket.
2
3
Insert the pin through the track and header bracket holes.
Secure with the fasteners.
Swing the operator up and ensure the operator is level.
HARDWARE
Header Pivot Pin (1)
Cotter pins (2)

TROLLEY
12Typical installation - Trolley
ATTACH THE DOOR ARM
1
2
Latch the door arm to the trolley. Make sure the open side of
the notch on the door arm faces the door.
Position the door bracket to the center line of the door and
attach the door bracket to the door using appropriate hardware
(not included). NOTE: When properly installed and adjusted the
door arm should be leaning back toward the operator slightly.
Refer to door manufacturer’s instructions for recommended
installation guidelines.
NO ECIT
1
2
HARDWARE
A
B
Nylok Nut 3/8"-16 (1)
Flanged Hex Nut 3/8"-16 (2)
A B
Bolt 3/8"-16 x 1" (3)

13
HOIST AND JACKSHAFT
Carton inventory/Operator specifications - Hoist and Jackshaft
OPERATOR SPECIFICATIONS
CARTON INVENTORY
Before beginning your installation check that all components were provided.
DESCRIPTION
Powerhead assembly
Owner’s manual and caution labels
Hardware box (includes fasteners, track spacers, trolley, door arm assembly, front idler and header mounting bracket)
3-Button control station with LED
Hoist hand chain (Models H, HJ and GH ONLY)
Door sprocket
Door/operator drive chain
Entrapment Protection Device: Model CPS-U photoelectric sensors (standard)
HOIST AND JACKSHAFT OPERATORS
MOTOR
TYPE:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous duty
HORSEPOWER:
Model J, H and HJ. . . . . . . . . . . . . . . . 1/3, 1/2, 3/4 and 1 HP
Model GH . . . . . . . . . . . . . . . . .1/2, 3/4, 1, 1-1/2, 2 and 3 HP
SPEED:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1725 RPM
VOLTAGE:
Model J, H and HJ. . . . . . . . . . . . . . . . . . . .115/230V 1 Phase
208/230/460/575V 3 Phase
Model GH . . . . . . . . . . . . . . . . . . . . . . . . . .115/230V 1 Phase
208/230/460/575V 3 Phase
CURRENT (Amperage):
Models H, HJ, and J
Voltage-Phase 1/3 HP 1/2 HP 3/4 HP 1 HP
115-1Ø, 60Hz 8.5 11.2 13.6 16
230-1Ø, 60Hz 4.2 5.6 6.8 8
208/230-3Ø, 60Hz 3 3.1 4 6
460-3Ø, 60Hz 1.5 1.75 2 3
575-3Ø, 60Hz 1.3 1.4 1.6 1.8
Model GH
Voltage-Phase 1/2 HP 3/4 HP 1 HP 1-1/2 HP 2 HP 3 HP
115-1Ø, 60Hz 11.2 13.6 16 20 - -
230-1Ø, 60Hz 5.6 6.8 8 10 - -
208/230-3Ø, 60Hz 3.1 4 6 7 8 10.6
460-3Ø, 60Hz 1.75 2 3 3.5 4 4.8
575-3Ø, 60Hz 1.4 1.6 1.8 2.75 3 -
ELECTRICAL
TRANSFORMER:. . . . . . . . . . . . . . . . . . . . . . . . 24Vac Secondary
CONTROL STATION:. . . . . . . . . . . . . . . . NEMA 3-Button Station
Open/Close/Stop w/LED
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . C2 (Standard)
Momentary contact to OPEN and STOP, constant pressure to
CLOSE, plus wiring for sensing device to reverse and auxiliary
devices to open and close with open override. See page 29 for
optional wiring types and operating modes.
LIMIT ADJUST:. . . . . . . . . . Linear driven, fully adjustable screw
type cams. Adjustable to 24 feet.
SAFETY
DISCONNECT:
Model J . . . . .Floor level disconnect for manual door operation
Model H and GH . . . . . . . Floor level chain hoist with electrical
interlock for manual door operation
Model HJ . . . . . . . . . . . . . . Includes both floor level disconnect
systems stated above
ENTRAPMENT PROTECTION:
LiftMaster Monitored Entrapment Protection (LMEP)
Photoelectric Sensors (CPS-U): . . . . . . . . . . . . .Through beam
used to provide non-contact safety protection.
Safety Edge (Optional): . . . . . . . Electric or pneumatic sensing
device attached to the bottom edge of door.

14
HOIST AND JACKSHAFT
MAXIMUM DOOR AREA (SQ. FT.)
MODELS J, H, AND HJ
SECTIONAL
22 ga.
Steel
Alum.
Doors
24 ga.
22 ga.
Steel
Alum.
Doors
---
285
350
500
625
24 ga.
Steel
Alum.
Grilles
---
Fiberglass
Doors
---
310
400
560
640
---
---
20 ga.
Steel
Wood
Doors
24 ga.
Steel
Insul.
260
320
450
560
20 ga.
18 ga.
Steel
Steel
Grilles
---
---
---
210
280
380
475
---
---
---
---
16 ga.
Steel
Insul.
125
200
250
310
1/3 HP
1/2 HP
3/4 HP
1 HP
ROLLING
16 ga.
Steel
---
16 ga.
Steel
---
20 ga.
Steel
Insul.
175
250
325
400
MODEL GH
SECTIONAL
22 ga.
Steel
Alum.
Doors
24 ga.
22 ga.
Steel
Alum.
Doors
---
300
430
560
---
---
---
24 ga.
Steel
Alum.
Grilles
---
Fiberglass
Doors
---
325
480
650
---
---
---
---
---
20 ga.
Steel
Wood
Doors
24 ga.
Steel
Insul.
275
390
500
680
---
---
20 ga.
18 ga.
Steel
Steel
Grilles
---
---
---
250
340
430
540
640
875
---
---
---
---
16 ga.
Steel
Insul.
175
225
300
375
460
620
1/2 HP
3/4 HP
1 HP
1-1/2 HP
2 HP
3 HP
5 HP
ROLLING
16 ga.
Steel
---
16 ga.
Steel
---
20 ga.
Steel
Insul.
225
275
325
425
560
840
Call for specifications
Operator specifications/Maximum door area - Hoist and Jackshaft
MECHANICAL
DRIVE REDUCTION:
Model J, H, and HJ . . . . . . . . Primary: Heavy duty (5L) V-Belt
Secondary: #48 chain/sprocket;
Output: #50 chain
Model GH . . . . . . . . . . . . Primary: 45:1 for 1/2, 3/4 and 1 HP
Worm gear-in-oil bath gear reducer 44:1 for 1-1/2 and 2 HP
42:1 for 3 HP
Output: #50 chain
OUTPUT SHAFT SPEED:
Model J, H and HJ. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 RPM
Model GH . . . . . . . . . . . . . . . . . . . . 38.3 for 1/2, 3/4 and 1 HP
39.2 for 1-1/2 and 2 HP
41.1 for 3 HP
DOOR SPEED:
Model J, H and HJ. . . . . . . 8-9" per second depending on door
Model GH . . . . . . . . . . . . . 8-9" per second depending on door
BRAKE: . . . . . . . . . . . . . . . . . . . . . Solenoid actuated disc brake
BEARINGS . . . . . . . . . . . . . .Output Shaft: Shielded Ball Bearing
Clutch Shaft: IronCopper sintered and oil impregnated
Models H and HJ ONLY
HAND CHAIN WHEEL: . . . . . . . . . . . . . . . . .Left or right handing
Models H and HJ ONLY
HOIST WHEEL: . . . . . . . Standard mounting on left or right side
OPERATOR SPECIFICATIONS

15
HOIST AND JACKSHAFT
A
AA
BB
B
B
A
13.75"
(34.93 cm)
1.5" (3.81 cm)
Door Height Plus 4 feet (minimum)
A - Wall Mounting
B - Bracket Mounting (rolling door)
6.59"
(16.74 cm)
5.5"
(14 cm)
Hand Chain Wheel Present
with Models H and HJ ONLY
WEIGHTS AND DIMENSIONS
MODELS J, H AND HJ
Hanging Weight: 80-110 lbs.
14 "
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: .........80-110 LBS.
Hand Chain Wheel
See
Note #1
See
Note #2
A
X
B
Y
C
D
Y
See
Note #3
A
11-1/2
12-1/2
12-3/4
12-3/4
11
11
12
12-1/2
12-3/4
13-1/4
B
25-3/4
26-3/4
27
27
25-1/4
25-1/4
26-1/4
26-3/4
27
28-5/8
C
12-63/64
12-63/64
12-63/64
13-63/64
12-63/64
12-63/64
12-63/64
13-63/64
13-63/64
15-15/64
D
3
3
3
3-1/2
3
3
3
3-1/2
3-1/2
3-15/16
1/2
3/4
1
1-1/2
1/2
3/4
1
1-1/2
2
3
1
1
1
1
3
3
3
3
3
3
HP
DIMENSIONS
PHASE
MODEL GH
Hanging Weight: 140 lbs.
Weights and dimensions - Hoist and Jackshaft
14.5"
(36.83 cm)
16.81"
(42.7 cm)
6.94"
(17.63 cm)
7.56"
(19.2 cm)
7.56"
(19.2 cm)
4.62"
(11.73 cm)
3/8" Bolt
4.41"
(11.2 cm)
4.56"
(11.58 cm)
7.62"
(19.35 cm)
20.15"
(51.18 cm)
16.43"
(41.73 cm)
14"
(35.56 cm)
8.34"
(21.18 cm)
NOTES:
1) Output shaft with 1" x 1/4" key for 1/2 thru 1 HP operators, 1-3/16" x 5/16" key for 1-1/2 and 2 HP operators,
1-1/4" x 1/4" key for 3 HP operators.
2) Mounting centers: X = 4-3/4"; Y = 5-1/2" for 1/2 thru 2 HP operators.
X = 3-5/8"; Y = 9-1/16" for 3 HP operators.
3) Hand chain wheel extends 1-5/8" beyond operator in vertical mounting position as shown.
*23.43"
(59.51 cm)

16
HOIST AND JACKSHAFT
Assembly/Typical installation - Hoist and Jackshaft
DETERMINE MOUNTING LOCATION
TYPICAL INSTALLATION
1
1
1a
1b
Select handing. Right (R) or Left (L).
On models J, H, HJ and GH operators the drive sprocket can be
mounted on either the right or left side.
For models H and HJ with manual hand chain systems, the
handing of the operator must be determined at the time of order.
The handing is indicated by the last letter of the model number
(R or L). The hand chain wheel cannot be switched. If your
installation causes the hand chain to hang in the door opening,
hook the chain to the side near the top of the door jamb.
The operator may be mounted on the wall, shelf or bracket
(not provided, see accessories). The optimum distance between
the door shaft and operator drive shaft is 12 - 15 inches.
Wall mount
Shelf or bracket mount
It is imperative that the wall or mounting surface provide adequate
support for the operator.
This surface must:
a. Be rigid to prevent play between the operator and the door
shaft.
b. Provide a level base.
c. Permit the operator to be fastened securely and with the drive
shaft parallel to the door shaft.
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 door systems technician 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,
cable, 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.
• Fasten the operator SECURELY to structural supports of the
building.
• Concrete anchors MUST be used if installing ANY brackets.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
ASSEMBLE THE OPERATOR
ASSEMBLY
1a 1b
12" - 15"
12" - 15"
EXAMPLE: Right Hand

17
HOIST AND JACKSHAFT
Typical installation - Hoist and Jackshaft
MOUNTING
INSTALL THE MANUAL DISCONNECT
1
1
2
3
Place the door sprocket on the door shaft.
Fasten Door retaining bracket 4 feet above the floor.
Door retaining bracket
Door retaining bracket
Place the operator drive sprocket on the appropriate side of the
operator for your installation type.
Wrap the drive chain around the door sprocket and the drive
sprocket then secure with the master link.
4Align the door and the drive sprockets. Insert keys and
fasten the sprockets with the set screws. NOTE: It is highly
recommended to add a thread adhesive to secure the set
screws in place.
1
23
4
1

18
WIRING
Wiring - Power and ground wiring
WIRING
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. 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 national and 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.
• 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.
Three Phase Power Wiring
Single Phase Power Wiring
Line Power
115/230 Vac
Single Phase
Hot
Neutral
Ground
Phase 1
Phase 2
Phase 3
WARNING
WARNING
WARNING
WARNING
2
13
Line Power
208/230/460/575 Vac
Three Phase
POWER AND GROUND
Power and control wiring must be run in separate conduit in
accordance with national and 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.
Remove the operator cover.
Attach power and ground wires to appropriate terminals.
IMPORTANT NOTE: This operator must be properly
grounded. Failure to properly ground the operator could
result in electric shock and serious injury.
NOTE: In some installations, such as a through-wall-installation,
the rotation of the motor and logic board may have to be changed.
1. Locate the MOTOR DIRECTION jumper on the logic board.
Remove jumper and relocate from STD to REV.
2. Relocate the safety limit switch (SLS) to the opposite side.
3. Remove CLOSE/OPEN decal and reattach appropriately.
1
3
2Run power wires to electrical box according to national and
local electrical codes.
ON THREE PHASE MACHINES ONLY: Incorrect phasing of
the power supply will cause the motor to rotate in the wrong
direction. To change motor rotation, exchange incoming
power leads L1 and L2.
DISTANCE GAUGE
50 feet 14 AWG
100 feet 12 AWG
200 feet 8 AWG*
350 feet 6 AWG*
500 feet 4 AWG*
1000 feet 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. USE COPPER WIRE ONLY.

19
WIRING
Wiring - Control station
Remove the control station cover.
Select appropriate knockout and run the wires to the
operator.
1Connect wires to the control station and replace the control
station cover.
4
3
Fasten the entrapment warning placard next to the control
station.
52 Fasten the control station to the wall at least 5 feet above the
ground. The installation surface must be smooth and flat.
Attach the MAS label to the side of the control station.
DATA
24VAC
24VAC
LMEP:
EDGE:
OPEN
CLOSE
STOP
COMMON
SBC
MAS
COMMON
TIMER
DEFEAT
POWER
TIMER
NABLE
N
3-PHASE 1 PHASE
Open
Close
Stop
Maintenance
Alert LED
(WH)(RD)
3-Button
Station
OPEN
CLOSE
STOP
24VAC
24VAC
TIMER
DEFEAT
COMMON
MAS
LMEP
EDGE
OPEN
CLOSE
STOP
COMMON
SBC
11
10
9
14
13
12
8
7
6
5
4
3
2
1
CONTROL STATION
4
^
O
OPEN
STOP
^
CLOSE
5'
1
2
3
To prevent possible SERIOUS INJURY or DEATH from
electrocution:
• Be sure power is NOT connected BEFORE installing door
control.
To prevent possible SERIOUS INJURY or DEATH from a closing
door:
• Install door control within sight of door, out of reach of
children at a minimum height of 5 feet (1.5 m) and away from
ALL moving parts of door.
• Install the control station far enough from the door to prevent
the user from coming in contact with the door while operating
the controls.
• Install the entrapment warning placard on wall next to the
control station in a prominent location that is visible from the
door.
• NEVER permit children to operate or play with door control
push buttons or remote controls.
• Activate door ONLY when it can be seen clearly, is properly
adjusted and there are no obstructions to door travel.
• ALWAYS keep door in sight until completely closed. NEVER
permit anyone to cross path of closing door.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
WARNING
Keep Door in Sight at all Times When Door is Moving
Moving Door Can Cause
Serious Injury or Death
Keep Clear! Door May Move at any Time
Without Prior Warning
Do Not Let Children Operate the Door or Play
in the Door Area
Maintenance
Alert System
TM
If light is Flashing
Rapidly, it is time
for routine door
maintenance.
If light is Flashing
Slowly, followed
by a pause, call for
immediate service.
Service every
cycles/months
5
NOTE: The low voltage control circuit wiring requires insulated,
20 AWG or greater wire. Refer to back page for additional control
wiring.
UL Entrapment Placard
MAS Label

20
ENTRAPMENT PROTECTION
Entrapment Protection
To prevent possible SERIOUS INJURY or DEATH from a closing
door:
• Be sure power is NOT connected to the door operator BEFORE
installing the photoelectric sensor.
• The door MUST be in the fully opened or closed position
BEFORE installing the LiftMaster Monitored Entrapment
Protection device.
To prevent SERIOUS INJURY, DEATH, ENTRAPMENT, or
PROPERTY DAMAGE:
• Correctly connect and align the photoelectric sensor.
• Install the photoelectric sensor beam NO HIGHER than
6" (15 cm) above the floor.
• This is a required safety device for B2, TS, T, and FSTS wiring
types and MUST NOT be disabled. For D1, C2, and E2 wiring
the installation of an entrapment device is recommended.
• LiftMaster Monitored Entrapment Protection devices are for
use with LiftMaster Commercial Door Operators ONLY. Use
with ANY other product voids the warranty.
• If an edge sensor is being used on a horizontal slide door,
then place one or more edge sensors on both the leading and
trailing edge.
• If an edge sensor is being used on a vertically moving door,
then place one or more edge sensors on the bottom edge of
the door.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
LIFTMASTER MONITORED ENTRAPMENT
PROTECTION (LMEP)
Safety Reversing
Sensor
Invisible Light Beam
Protection Area
Safety Reversing
Sensor
— Right Side of Garage
—
—Left Side of Garage—
Photoelectric Sensor
6" (15 cm) max. above
floor
Invisible Light Beam
Protection Area
Photoelectric Sensor
6" (15 cm) max. above
floor
ENTRAPMENT PROTECTION
IMPORTANT INFORMATION ABOUT THE LIFTMASTER
MONITORED ENTRAPMENT PROTECTION DEVICES
A LiftMaster Monitored Entrapment Protection (LMEP) device is
required for most wiring types (refer to page 29). The operator
comes standard with the photoelectric sensors model CPS-U,
additional entrapment devices are available for purchase
(see accessories). If a LiftMaster Monitored Entrapment Protection
device is not installed, constant pressure to close will be required
from the control station.
When properly connected and aligned, the photoelectric sensors
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 photoelectric sensors must be installed facing each other
across the door, no more than 6" (15 cm) above the floor.
Each photoelectric sensor has an LED that will glow steady when
the sensor is properly connected and aligned. The LEDs on both
photoelectric sensors will flicker rapidly when obstructed or
misaligned.