Chamberlain H User manual

OOWWNNEERR’’SSMMAANNUUAALL
JJHHHHJJ
IINNDDUUSSTTRRIIAALLDDUUTTYYCCOOMMMMEERRCCIIAALLDDOOOORROOPPEERRAATTOORR
NOT FOR RESIDENTIAL USE
Serial # Box
Installation Date
2 YEAR WARRANTY
C2 Wiring
FACTORYSET
See page 8 for
other wiring
configurations

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
TABLE OF CONTENTS
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
2
SPECIFICATIONS
Carton Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operator Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operator Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PREPARATION
Hand Chain Handing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION
Mount the Operator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Entrapment Protection Accessories . . . . . . . . . . . . . . . . . . . . . . 8
ADJUSTMENT
Limit Switch Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Clutch Adjustment and Auxiliary Reversal System . . . . . . . . . . . 9
POWER WIRING CONNECTIONS
Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ground Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CONTROL WIRING
Determine Wiring Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Special Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Mounting Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DIAGRAMS
Single Phase Wiring Diagram – 10118-1 . . . . . . . . . . . . . . . . . 12
Single Phase Schematic Diagram – 10118-1 . . . . . . . . . . . . . . 13
Three Phase Wiring Diagram – 10118-1. . . . . . . . . . . . . . . . . . 14
Three Phase Schematic Diagram – 10118-1. . . . . . . . . . . . . . . 15
TEST THE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . 16
Operator Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
REPLACEMENT PARTS
Electrical Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Replacement Parts Kits. . . . . . . . . . . . . . . . . . . . . . . . . . . 19 – 20
Operator Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Repair Parts Kits - Model J. . . . . . . . . . . . . . . . . . . . . . . . 22 – 23
Repair Parts Kits - Model H . . . . . . . . . . . . . . . . . . . . . . . 24 – 25
Repair Parts Kits - Model HJ . . . . . . . . . . . . . . . . . . . . . . 26 – 27
Control Connection Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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 DIMENSIONS
3
A
A
B
B
A
B
B
A
MOUNTING DIMENSIONS
A - Wall Mounting
B - Bracket Mounting (rolling door)
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: 80-110 LBS. (36.3-49.9 kg)
14.44"
7.27" 7.17"
8.83" 7.31"
14.60"
4.63"
4.41"
17.63"
16.50"
Hand Chain Wheel
present with Models
H and HJ only.
7.56"
3/8" Bolt
6.59"
5.50"
1.50"
13.75"
4.56"
Before beginning your installation check that all components were provided.
CARTON INVENTORY
DESCRIPTION
Powerhead Assembly
Owner’s Manual and Caution Labels
Hardware Box (Includes Fasteners, Disconnect and Chain Hoist Wall Bracket)
3-Button Control Station
Hoist Hand Chain (Models H & HJ Only)
Door Sprocket
Door/Operator Drive Chain

4
OPERATOR SPECIFICATIONS
SAFETY
DISCONNECT:
Model J . . . . . . . . . . . . .Floor level disconnect for emergency
manual door operation.
Model H . . . . . . . . . . . . .Floor level chain hoist with electrical
interlock for manual door operation.
Model HJ . . . . . . . . . . . .Includes both floor level disconnect
systems stated above.
Reversing Edge: . . . . . . .(Optional) Electric or pneumatic sensing
device attached to the bottom edge of door.
MOTOR
TYPE:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Duty
HORSEPOWER: . . . . . . . . . . . . . . . . . . . 1/3, 1/2, 3/4 and 1 HP
Single or Three Phase
SPEED: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1725 RPM
VOLTAGE: . . . . . . . . . . . . . . . . . . . . 115, 220, 230 Single Phase
208, 230, 460, 575 Three Phase
CURRENT: . . . . . . . . . . . . . . . . . . . . . . . . See Motor Nameplate
ELECTRICAL
TRANSFORMER: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Vac
CONTROL STATION: . . . . . . . . . . . .NEMA Three-Button Station
Open/Close/Stop
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . .C2 (Standard)
Momentary contact to OPEN & STOP, constant pressure to
CLOSE, open override plus wiring for sensing device to
reverse. (Other types available. See chart, Pg. 11)
LIMIT ADJUST: . . . . .Linear driven, fully adjustable screw type
cams. Adjustable to 30 feet.
MECHANICAL
DRIVE REDUCTION: . . . . . . . .Primary: Heavy duty (5L) V-Belt
Secondary: #48 chain/sprocket; Output: #50 chain
OUTPUT SHAFT SPEED: . . . . . . . . . . . . . . . . . . . . . . . .36 RPM
DOOR SPEED: . . . . . . . . . . .6-7" (15.24-17.78 cm) per second
depending on door
BRAKE (Optional): . . . . . . . . . . . .Solenoid actuated disc brake
BEARINGS: . . . . . . . . . . . . .Output Shaft Shielded ball bearing;
Clutch Shaft: Iron Copper sintered and oil impregnated
HAND CHAIN WHEEL: . . . . . . . . . . . . . . . .Left or right handing
Models H and HJ ONLY

5
PREPARATION
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 operator and 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.
The safety and wear of the operator will be adversely affected if
any of the above requirements are not met. For metal buildings,
fasten 2" x 2" x 3/16" (or larger) angle iron frames to the building
purlins. Retain 5-1/2" (13.97 cm) between frames.
Both J and H series operators have dual output shafts and may
be mounted on either the right (standard) or left side of door, and
in either a vertical (standard) or horizontal mounting position. If
you need to move the drive sprocket, loosen BOTH set screws,
remove the sprocket and key, and place on the opposite side of
the drive shaft. Be sure to tighten BOTH set screws securely.
HAND CHAIN HANDING
For models H and HJ 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). 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.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
Door Sprocket
Shaft Support Bracket with
Bearing (Not Provided)
5 1/2" (13.97 cm)
(2) Set
Screws
Drive
Sprocket
Output Shaft Key

6
INSTALLATION
IMPORTANT NOTE: Before your operator is installed, be sure the door has been properly aligned and is working smoothly. The operator
may be wall mounted or mounted on a bracket or shelf. If necessary, refer to the preparation on page 5. Refer to the illustrations and
instructions below that suit your application.
MOUNT THE OPERATOR
1. Wall Mounting: The operator should generally be installed
below the door shaft, and as close to the door as possible
(Figure 1).
Bracket Shelf Mounting: The operator may be mounted either
above or below the door shaft (Figure 2).
IMPORTANT: The shelf or bracket must provide adequate support,
prevent play between operator and door shaft, and permit
operator to be fastened securely and with the drive shaft parallel
to the door shaft.
NOTE: The optimum distance between the door shaft and
operator drive shaft is between 12-15" (30.5-38.1 cm).
2. Place door sprocket on the door shaft. Do not insert the key
at this time.
3. Place drive sprocket on the appropriate side of the operator.
Do not insert the key at this time.
4. Wrap drive chain around door sprocket and join roller chain
ends together with master link.
5. Raise operator to approximate mounting position and position
chain over operator sprocket.
6. 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.
7. Align sprockets and secure (Figure 3).
8. Install Hand Chain (Models H and HJ only)
Place hand chain around hand chain wheel. Be sure to pass it
through both openings in the chain guide. Remove enough
links so chain hangs approximately 2' (.61 m) above the floor.
9. Mount Chain Keeper / Keyhole Bracket
Using suitable hardware mount the chain keeper
approximately 4' (1.22 m) above the floor, near the free
hanging chain. Remove disconnect sash chain from bag and
place the end through the keyhole in the the chain keeper.
Remove excess links if necessary.
Figure 1
Figure 2
Figure 3
Optimum Distance
12-15" (30.5-38.1 cm)
Optimum Distance 12-15" (30.5-38.1 cm)
Typical Right Hand Wall
Mounted Operator
OPTIONAL
Mounting Bracket
P/N 08-9098
Chain Keeper
4' (1.22 m) above floor
Be sure door sprocket is properly
aligned with drive before securing
to the shaft.

7
MANUAL OPERATION
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. To prevent possible SERIOUS INJURY from a moving chain,
ENGAGE interlock BEFORE manually operating your door.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
MODEL H
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 (small 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 (large chain).
3. The disconnect chain must be released from the chain keeper
before the door will operate again electrically.
MODEL J
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.
Release the disconnect chain to operate the door again
electrically.
MODEL HJ
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 H instructions for hoist operation.
2. Refer to Model J instructions for manual operation.
INSTALLATION
Chain Keeper
(with pad locking provisions)
Keyhole Bracket
Electrical Interlock with Hoist for Models H and HJ
Manual Disconnect for Models J and HJ

8
ENTRAPMENT PROTECTION ACCESSORIES
(OPTIONAL)
SENSING EDGES & PHOTO EYES
Sensing devices provided for door industry type operators with an
isolated normally open (N.O.) output are compatible with your
operator. This includes pneumatic and electric edges, and through
beam and retro reflective photo eyes. If your door does not have a
bottom sensing edge or safety photo eyes and you wish to add a
safety device to your application, please contact your local
LiftMaster Authorized Dealer.
If not pre-installed by the door manufacturer, mount the sensing
edge on the door according to the instructions provided with the
edge. The sensing edge may be electrically connected by either
coiled cord or take-up reel. Refer to the steps below.
Important Notes:
a. Proceed with Limit Switch Adjustments described below before
making any sensing edge wiring connections to operator as
described below.
b. Electrician must hardwire the junction box to the operator
electrical box in accordance with local codes.
WIRING
For wiring of your sensing device to the operator, refer to the
wiring diagrams provided with your operator. See field connection
terminals identified as a Sensing Device or Safety Edge.
TAKE-UP REEL
Take-up reel should be installed 12" (30.48 cm) above the top of
the door.
COIL CORD
Connect operator end of coil cord to junction box (not provided)
fastened to the wall approximately halfway up the door opening.
ADJUSTMENT
To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect electric power BEFORE manually
moving limit nuts.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
INSTALLATION
To reduce the risk of SEVERE INJURY or DEATH, ALWAYS install
reversing sensors when the 3-button control station is out of
sight of door or ANY other control (automatic or manual) is
used. Reversing devices are recommended for ALL installations.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
Open Limit Switch
Retaining Plate
Auxiliary Open Limit Switch
Close Limit Switch
Actuator
Safety (Aux. Close) Limit Switch
LIMIT SWITCH ADJUSTMENT
NOTE: Make sure the limit nuts are positioned between the limit
switches before proceeding with adjustments.
1. Depress retaining plate to allow nut to spin freely. After
adjustment, release plate and move nut back and forth to
ensure it is fully seated in slot.
2. To increase door travel, spin nut away from limit switch. To
decrease door travel, spin limit nut toward limit switch.
3. Adjust open limit nut so that door will stop in open position
with the bottom of the door even with top of door opening.
4. Repeat steps 1 and 2 for close cycle. Adjust close limit nut so
that the limit switch is engaged as door fully seats at the floor.

9
ADJUSTMENT
To prevent possible SERIOUS INJURY or DEATH, install
reversing sensors when 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
WARNINGWARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIAADVERTENCIA
Solenoid
Release Lever
Cotterpin
Friction Pads
Plate
Assembly
Adjusting Nut
Spring
Clutch Pad
Clutch Plate
Cotterpin Washer
Clutch Pulley
BRAKE ADJUSTMENT
A solenoid brake is available as an option (not included as a
standard feature). The brake is adjusted at the factory and should
not need additional adjustment for the the life of the brake
assembly.
Replace brake assembly when necessary. Refer to the illustration
for identification of components for the solenoid type brake
system.
CLUTCH ADJUSTMENT AND
AUXILIARY REVERSAL SYSTEM
The Auxiliary Reversal System is designed to protect the door
and motorized operator. It is NOT a substitute for a safety sensing
device. The Auxiliary Reversal System works in tandem with the
adjustable clutch to detect if a closing door runs into or comes
across an obstruction. If an obstruction is met and causes the
clutch to slip, the Auxiliary Reversal System will return the door
to the full open position when closing or stops the door when
opening.
1. Remove cotterpin from nut on the clutch shaft.
2. Back off clutch nut until there is very little tension on the
clutch spring.
3. 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. When the clutch is
properly adjusted, it should generally be possible to stop the
door by hand during travel.
4. Reinstall cotterpin.

10
POWER WIRING CONNECTIONS
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. We recommend that
you install an optional reversing edge BEFORE proceeding with
the control station installation.
• 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
GROUND WIRING CONNECTIONS
1. Connect earth ground to the chassis ground screw in the
electrical box enclosure.
2. Use same conduit entry into the electrical box as the power
wiring.
IMPORTANT NOTE: This unit must be properly grounded. Failure
to properly ground this unit could result in electric shock and
serious injury.
POWER WIRING CONNECTIONS
1. Connect power wires coming from the main to the captive
terminal block in the electrical box enclosure marked with the
label. All power and control wiring must be run in separate
conduit in accordance with local electrical codes.
2. Be sure to run all power wires through the conduit hole in the
electrical box enclosure marked with the label shown below.
NOTE: Must use #14 AWG or thicker wire for power wiring.
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.
Single Phase Power Wiring
Line Power
115/230 Vac
Single Phase
Three Phase Power Wiring
Line Power
208/230/380/460/575 Vac
Three Phase
Hot
Neutral
Ground
Phase 1
Phase 2
Phase 3