Lift-Master HMJ User Manual

OWNER'S MANUAL

MODELS:

✦

HMJ

INDUSTRIAL DUTY DOOR OPERATOR

NOT FOR RESIDENTIAL USE

Serial #

(located on electrical box cover)

Installation Date

Wiring Type

2 YEAR WARRANTY

41B6

FACTORY SET

C2 Wiring

See page 8 for

other wiring

configurations

SAFETY

DISCONNECT :

Model MJ: Floor level disconnect for emergency

manual door operation.

Model MH: Floor level chain hoist with electrical interlock for emergency manual door operation.

Model HMJ: Includes both floor level disconnect systems described above.

REVERSING EDGE:...............(Optional) Electric or

pneumatic sensing device attached to the bottom edge of door.

A REVERSING EDGE IS STRONGLY RECOMMENDED FOR ALL COMMERCIAL OPERATOR INSTALLATIONS. REQUIRED WHEN THE 3 BUTTON CONTROL STATION IS OUT OF SIGHT OF DOOR OR ANY OTHER CONTROL (AUTOMATIC OR MANUAL) IS USED.

SPECIFICATIONS

ELECTRICAL

TRANSFORMER:.............24Vac

CONTROL STATION: ......NEMA 1 3-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. See pages 13 and 14 for optional control settings and operating modes.

LIMIT ADJUST: ................Linear driven, fully

adjustable screw type cams. Adjustable to 24 feet.

WEIGHTS AND DIMENSIONS

HANGING WEIGHT: .........80-110 LBS.

MOTOR

TYPE: .................................Intermittent duty

HORSEPOWER: ................1/2 HP

SPEED:...............................1000 RPM

VOLTAGE: ..........................115V 1 Phase 60Hz,

230V 1 Phase 50Hz

CURRENT:..........................See motor nameplate

MECHANICAL

DRIVE REDUCTION:.............Primary: Heavy duty

(4L) V-Belt. Secondary: #48 chain/sprocket. Output:

#48 chain

OUTPUT SHAFT SPEED:.....80 RPM

DOOR SPEED: ......................approx. 9" per sec.

depending on door

BRAKE (Optional): ...............Solenoid actuated disc

brake

BEARINGS: ...........................IronCopper sintered and

oil impregnated.

HAND CHAIN WHEEL: .........Left or right handing

Models MH and HMJ only.

12.69"

6.34"

10.88"

6.34"

7.00"

15.78"

6.13"

9.19"

3.63"

2.91"

18.50"

Hand Chain Wheel present with Model MH only.

MOUNTING DIMENSIONS

A - Wall Mounting B - Bracket Mounting (rolling door)

14.75"

7.00"

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" between frames (Figure 1).

All MJ, MH, and HMJ 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 MH and HMJ 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). 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.

IMPORTANT SAFETY NOTES

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.

WARNING

Shaft Support Bracket with Bearing (Not Provided)

Door Sprocket

5-1/2" (13.97 cm)

(2) Set Screws

Output Shaft

Key

Drive Sprocket

OPTIONAL Mounting Bracket P/N 08-9098

1b. Bracket or Shelf Mounting

The operator may be mounted either above or below the door shaft. The optimum distance between the door shaft and operator drive shaft is between 12" - 15" (Figure 4).

1a. Wall Mounting

The operator should generally be installed below the door shaft, and as close to the door as possible. The optimum distance between the door shaft and operator drive shaft is between 12" - 15" (Figure 3).

INSTALLATION

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.

1c. Place door sprocket on the door shaft. Do not

insert the key at this time.

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

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

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

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. Align sprockets and secure (Figure 5).

FIGURE 4

FIGURE 3

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 operator preparations on page 3. Refer to the illustration and instructions below that suits your application.

FIGURE 5

Optimum Distance

12 - 15"

OPTIONAL Mounting Bracket P/N 10-9095

Optimum Distance

12 - 15"

Typical Right Hand Wall Mounted Operator

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

Chain Retaining Bracket

Keyhole Bracket

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.

7. Install Hand Chain (Models MH and HMJ 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 two feet above the floor

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.

Model MH

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. Release the disconnect chain to operate the door again electrically.

8. Mount Chain Keeper / Keyhole Bracket Using suitable hardware mount the chain keeper approximately 4 feet 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.

Manual Disconnect for Models MJ and HMJ

Electrical Interlock with Hoist for Models MH and HMJ

Chain Retaining Bracket (with pad locking provisions)

Model HMJ

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 above for hoist operation.

2. Refer to Model MJ instructions above for manual operation.

To prevent possible SERIOUS INJURY from a moving chain, DISCONNECT electric power to the operator BEFORE manually operating your door.

WARNING

LIMIT SWITCH ADJUSTMENT

NOTE: Make sure the limit nuts are positioned between the limit switch actuators before proceeding with adjustments.

If other problems persist, call our toll-free number for assistance - 1-800-528-2806.

1. To adjust limit nuts depress retaining plate to allow nut to spin freely. After adjustment, release plate and ensure it seats fully in slots of both nuts.

2. To increase door travel, spin nut away from actuator. To decrease door travel, spin limit nut toward actuator.

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 actuator is engaged as door fully seats at the floor.

SENSING EDGES

All types of sensing edges with an isolated normally open (N.O.) output are compatible with your operator. This includes pneumatic and electric edges. If your door does not have a bottom sensing edge and you wish to purchase one, contact the supplier of your operator.

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 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.

ENTRAPMENT PROTECTION ACCESSORIES (OPTIONAL)

WIRING:

For wiring of your sensing device to the operator, refer to the wiring diagram supplied with your operator. See field connection terminals identified as Sensing Device or Safety Edge.

TAKE-UP REEL: Take-up reel should be installed 12" above the top of the door.

COIL CORD: Connect operator end of coil cord to junction box (not supplied) fastened to the wall approximately halfway up the door opening.

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.

WARNING

To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution, disconnect electric power BEFORE manually moving limit nuts.

WARNING

OPEN Limit Switch

Retaining Plate

CLOSE Limit Switch

Aux. OPEN

Limit Switch

SAFETY

(Aux. Close) Limit Switch

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.

• To avoid damage to door and operator, make ALL door locks inoperative. Secure locks(s) in “OPEN” position. If the door lock needs to remain functional, install an interlock switch.

WARNING

POWER WIRING

ON THREE PHASE MACHINES ONLY!

Incorrect phasing of the power supply will cause the motor to rotate in the wrong direction (open when CLOSE button is pressed and vice-versa). To change motor rotation, exchange incoming power leads L1 and L2.

CONDUIT ACCESS

1. Remove the cover from the electrical enclosure. Inside this enclosure you will find the wiring diagram(s) for your unit. Refer to the diagram (glued on the inside of the cover) for all connections described below. If this diagram is missing, call the number on the back of this manual. DO NOT INSTALL ANY WIRING OR ATTEMPT TO RUN THIS OPERATOR WITHOUT CONSULTING THE WIRING DIAGRAM.

2. Be sure that the power supply is of the correct voltage, phase, frequency, and amperage to supply the operator. Refer to the operator nameplate on the cover.

3. Using the 1-1/16" dia conduit access hole as shown below, bring supply lines to the operator and connect wires to the terminals indicated on the WIRING CONNECTIONS DIAGRAM.

4. Important NOTE: Connect earth ground to the chassis ground screw in the electrical box enclosure. Do not turn power on until you have finished making all power and control wiring connections and have completed the limit switch adjustment procedure.

POWER WIRING CONNECTIONS

Three (3) 7/8" & 1-1/6" DIA. Knockouts for Power & Control Wiring access (Near & Opposite side)

WIRING

This Operator has

Control Wiring.

SUPPLEMENTAL WIRING DIAGRAM(S)

REPLACEMENT WIRING DIAGRAM

Note: Supplemental Wiring Diagrams are

to be used in addition to 1753 or 1754. Replacement Wiring Diagram is to be used in place of 1753 or 1754.

SPECIAL CONTROL

WIRING DATA

Wiring Type

PEN

ESO

CONTROL WIRING

LOCATING THE CONTROL STATION

All operators are supplied with some type of control station. Generally a three button station (OPEN/CLOSE/STOP) is provided. A two-position key switch or control station (OPEN/CLOSE) may be added or substituted when requested at the time of order. Mount the control station near the door.

IMPORTANT: Mount WARNING NOTICE beside or below the push button station.

MOUNT WARNING NOTICE

Standard C2 or B2 Wiring

Standard operators are shipped from the factory with jumper set for C2 wiring, which requires constant pressure on button to close the door. If momentary contact on close direction is desired (B2 wiring) you must include an entrapment protection device. See close control settings to the right.

Constant pressure on close (C2 wiring)

In the electrical enclosure, a RED wire was placed on terminal block #12. With this setting, the operator will require constant pressure on close control in order to keep door moving in the close direction.

Wiring Diagram label on inside cover of electrical box

SPECIAL CONTROL WIRING

If your operator was shipped from the factory with non-standard control wiring or with optional accessories that require addition instructions, refer to the wiring diagram(s) indicated in the special control wiring data box. When a replacement wiring diagram is present, wiring diagrams in this manual will not apply. Refer only to the replacement wiring diagram for all connections.

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.

WARNING

DETERMINE WIRING TYPE

Refer to the wiring diagram located on the inside cover the electrical box to determine the type of control wiring.

Momentary contact on close (B2 wiring)

Move RED wire from terminal block #12 to terminal #2. The operator will require only momentary contact to close the door.

Control Station

PEN

Push

Buttons

TOP

W A R N I N G

TO PREVENT ENTRAPMENT

DO NOT START DOOR DOWNWARD

UNLESS DOORWAY IS CLEAR

WARNING Notice

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