Allstar Products Group LT 50 User Manual
INSTALLER: Place this manual in the plastic envelope provided and permanently
attach to the wall near the pushbutton.
INSTALLATION AND
OWNER’S MANUAL
ALLSTAR LT 50
Commercial Vehicular Garage Door Operator
Model Number LT 50 for 10 FT and 12 FT High
Sectional Doors and One Piece Doors with Track.
110060
110044
BY
As of date of manufacture,
meets all ANSI/UL 325
Safety Requirements for
Vehicular Garage Door
Operators
Serial #:
Date Installed:
Your Dealer:
READ THIS MANUAL
CAREFULLY BEFORE
INSTALLATION OR USE
1
TABLE OF CONTENTS
Product Features ............................................................ 3
Component Identification/Tools Required...................4
Section A: Assembly Instructions................................ 5
Section B: Installation Notes........................................6
Section C: Installing the Operator ...............................7
Identify Your Door Type ..........................................7
Mounting the Front Bracket .................................... 8
Mounting the Power Head.......................................9
Door Bracket Installation......................................... 9
Pushbutton Connection ........................................ 10
Optional Safe Finish Photoelectric
Installation ..............................................................11
Configuring the Motor Control Board
for External Devices............................................... 12
Initial Test of Safe Finish Photosystem ............... 12
Connecting the Door Arm .....................................13
Testing the Sensitivity ...........................................14
Section D: Auxiliary Equipment ................................15
Installation of Radio Controls..............................15
Section E: Adjustments..............................................16
Open Travel Adjustment ...................................... 16
Open & Close Obstruction Force........................16
Obstruction Sensitivity at Close Position .......... 16
Positive Mechanical Lock Adjustment ............... 17
Travel Time Adjustment.......................................17
Important Safety Instructions ................................... 17
Section F: Operating Instructions ............................ 18
How To Activate The Opener............................... 18
Sequence of Operation ........................................18
How the Light Works ...........................................18
How To Operate The Door Manually...................19
Safe Finish Wiring Diagrams .....................................20
Optional Pneumatic Door Edge Installation ............. 20
Maintenance Schedule ...............................................21
Installation Checklist .................................................. 21
Troubleshooting Guide .............................................. 22
Parts Breakdown and Listing..................................... 23
Warranty Information .................................................24
READ THESE STATEMENTS CAREFULLY AND FOLLOW THE
The Warning and Caution boxes throughout this manual are there to protect you and
your equipment. Pay close attention to these boxes as you follow the manual.
WARNING
Indicates a MECHANICAL
hazard of INJURY OR
DEATH. Gives instructions
to avoid the hazard.
INSTRUCTIONS CLOSELY.
CAUTION
Indicates a MECHANICAL hazard
of DAMAGE to your door, door
operator, or equipment. Gives
instructions to avoid the hazard.
WARNING
Indicates an ELECTRICAL
hazard of INJURY OR
DEATH. Gives instructions
to avoid the hazard.
2
CAUTION
Indicates an ELECTRICAL hazard
of DAMAGE to your door, door
operator, or equipment. Gives
instructions to avoid the hazard.
PRODUCT FEATURES
The purpose of this booklet is to provide assembly,
installation and operation information concerning the Allstar
LT 50 Commercial Vehicular Garage Door Openers and related
Accessory Products.
NOTICE
IT IS IMPORTANT THAT THIS INSTRUCTION
MANUAL BE READ AND UNDERSTOOD
COMPLETELY BEFORE INSTALLATION OR
OPERATION IS ATTEMPTED.
NOTICE
THE IMPORTANT SAFEGUARDS AND
INSTRUCTIONS IN THIS MANUAL CANNOT
COVER ALL POSSIBLE CONDITIONS AND
SITUATIONS WHICH MAY OCCUR DURING ITS
USE. IT MUST BE UNDERSTOOD THAT
COMMON SENSE AND CAUTION MUST BE
EXERCISED BY THE PERSON(S) INSTALLING,
MAINTAINING AND OPERATING THE
EQUIPMENT DESCRIBED HEREIN. DO NOT
USE THIS EQUIPMENT FOR ANY OTHER THAN
ITS INTENDED PURPOSE - OPERATING
OVERHEAD GARAGE DOORS.
The Model LT 50 drawbar operators are used in the following
applications:
-Restricted Duty, Limited Cycle Commercial installations only.
-Rate of operation shall not exceed 6 cycles of openings and
closings per hour, maximum of 40 cycles per day.
-Indoor Use Only.
-Up to 12 foot high doors with a maximum weight of 400
pounds.
-Use with Safe Finish™ Photosystem (light beam across the
door opening) or foam/pneumatic reversing edge door
components - REQUIRED where the push button is out of sight
of the door or any other automatic, remote or manual control is
used to activate the door.
Alternating Action Operation: The mechanical wall
pushbutton functions in an Open/Stop/Close/Stop mode
in normal operation. (Page 18)
Manual Release: A pull cord allows separation of the
drive mechanism and manual operation of the door when
desired, as in the event of a power failure. (Page 19)
Automatic Reconnection: Once power is restored,
or automatic operation of the door is again desired,
initiating operation in the normal manner (Push Button,
Radio Control, etc.) will effect automatic reconnection of
the Manual Release Mechanism. (Page 19)
Connections For Continuously Monitored
Auxiliary Entrapment Protection Devices:
LT 50 Safe Finish™ Photosystem (light beam across the
door opening) can be easily connected to the Opener.
Control circuitry monitors the device continuously for
proper operation. (Page 11) Consult the factory for
compatibility of other auxiliary entrapment protection
devices.
The
Momentary Contact To Close: The standard close
operation mode is momentary contact of the mechanical
Push Button, and a portable Radio Transmitter can be
used to close the door (PageZ18). The internal Sensing
System (described earlier) detects obstructions in the
door’s path.
Constant Contact To Close: For utmost safety, after
installation of a Safe Finish™ Photosystem, the standard
operation mode can be configured to require constant
contact on the mechanical Push Button to close the door
if the photosystem fails or if there is a break or short in
the wiring. In this mode of operation, a Radio
Transmitter cannot be used to close the door. (Page 18)
Safe Finish™ Photosystem: An invisible infrared
beam of light guards the door opening and reverses a
downward moving door if the beam is broken by a
stationary or moving object. The LT 50 motor control
circuitry can be configured to constantly monitor the Safe
Finish Photosystem for proper operation.
STANDARD FEATURES:
Sensing System: A built-in sensing system detects
obstructions during door operation. If in the downward (close)
travel mode, the Opener will sense an obstruction and reverse
the direction of the door. In the open mode, the Opener will
stop. Since all doors are different, the Sensing System has
independent adjustments for customizing the level of force
required for the normal opening and closing of specified doors.
( Page 16)
Close Limit Switch: In winter months it's common for small
pieces of ice or packed snow to be trapped under the door.
Ground swelling can also effect the close limit setting of the
Opener. The LT 50 Close Limit Switch overrides the Sensing
System during the last one inch of closing travel and prevents
the door from reversing if it encounters an obstruction at this
point.
3
OPTIONAL FEATURES:
Digital Radio Controls: The LT 50 Opener covered
in this Manual can be fitted with optional Radio Controls.
Up to 19,683 private codes can be easily selected without
use of tools. (PageZ15)
Deluxe Wall Push Button: A feature-packed
accessory unit, the Deluxe Wall Station allows access to
all of the Opener's functions. Open/Close button permits
full control of the door’s operation. The Opener's
built-in light can be turned on or off independent of door
operation. A Security Switch allows the Opener to be
deactivated for extended periods of time. (Page 19)
Keyless Entry System: A tamper resistant outdoor
keypad, the optional Keyless Entry System permits entry
to the garage without use of key or radio transmitter.
Easily programmable, it accommodates four separate
access codes of 4 digits. Lighted Buttons enhance
nighttime use.
COMPONENT IDENTIFICATION
TRANSMITTER
OPTIONAL
POWER HEAD/DRIVE
RAIL ASSEMBLY
WALL
BRACKET
DOOR ARM ROD
DOOR ARM
TUBE SECTION
SENSOR ‘L’
BRACKET
(OPTIONAL)
MANUAL RELEASE
TAG
BELL WIRE
SPOOL
(when supplied)
110045
OPENER
HARDWARE
TOOLS REQUIRED
DOOR
BRACKET
BAG
This door is operated by
a limited duty operator.
To prevent the motor
protector from tri pping Do not exceed 6 door
cycles per hour.
PUSHBUTTON
“WARNING” LABEL
WALL PUSHBUTTON
SENSOR ‘U’
BRACKET
(OPTIONAL)
RED
RELEASE
KNOB
SAFE FINISH
PHOTOSYSTEM
SENSORS
(OPTIONAL)
110046
SAFE FINISH HARDWARE
(OPTIONAL)
STEPLADDER
WOOD
BLOCK
HACKSAW
SOCKET WRENCH
3/8” SOCKET
7/16” SOCKET
TAPE MEASURE
HAMMER
1/2” OPEN END
WRENCH
DRILL & BITS
SMALL SCREW DRIVER
(1/8” HEAD)
LEVEL
SCREW DRIVER
4
A: ASSEMBLY INSTRUCTIONS
If Your Opener Is Supplied Fully Assembled, Please Disregard This Page.
NOTE: The Rail/Chain Assembly is
packaged separately from the Power
Head Unit. The trolley, front idler/
tension adjustment assembly, chain,
drive gear and limit cams are assembled
to the Rail/Chain Assembly at the
factory. Follow the steps outlined
below to complete assembly prior to
installation. Refer to the component
identification illustrations on the
previous page.
STEP 1: Prior to attaching the motor
drive unit to the rail assembly, the Open
and Close adjustment bolts must be
installed. Place the threaded end of the
adjustment bolt through the hole in the
rail and then slip the head of the bolt
through the center of the double key
hole. Slide the spring over the bolt and attach load adjusting nut. Tighten until the tip of the bolt extends 3/16” outside the nut. Repeat
above for the other side.
Assembled and
In Position
Spring
Spring
L-Shaped Adjustment Bolt
Force Adjusting
Plastic-Insert
Locking Nut
Double Key Hole
110047-1
STEP 2: Protect the Power Unit cover from scratching during assembly by placing it on cardboard. Loosen the two 5/16" lock washer
nuts on top of the power head drive unit.
STEP 3: VERY IMPORTANT ! Position a paper shim around the power head unit drive gear (standard weight paper, see
illustration). Shim must remain in place while assembling the power head unit to the Rail/Chain assembly to ensure a proper gear mesh
and avoid excessive long term wear.
STEP 4: Align the four key holes in the Rail/Chain assembly with
the two front guide tabs and the two rear bolt studs on the power head
unit and place the rail/chain assembly in place over the power head
unit. The power head drive unit limit lever protrudes up through the
rail/chain assembly sensing plate. Take care not to bend the lever
when assembling. Slide
the power head drive
unit forward until the
gear meshes with the
rail/chain assembly
drive gear. Check to
make sure the front
guide tabs on the power
head unit are securely
locked on the rail/chain
assembly.
110047-2
Take care not to
bend limit lever
Limit Lever
5/16” Lock
Washer Nuts
Limit
Lever
Front Guide
Tabs (2)
Paper Shim
110047-3
STEP 5: The power head drive unit should be move forward until all play between the gears has been eliminated, but no additional
force should be used that could cause pressure on the motor (power head unit) drive gear. Tighten the two 5/16" lock washer nuts on
top of the power head drive unit that were loosened in Step 2 above.
When the opener is first activated the paper shim will be ejected. The paper shim should have the profile of the gears to indicate the
proper mesh between them.
STEP 6: Recheck the nuts used to secure the Rail/Chain assembly to the Power Head Unit, making sure they are tight.
Assembly is now complete and you are ready to begin installation of the opener.
5
B: IMPORTANT INSTALLATION NOTES
TO REDUCE THE RISK OF SEVERE INJURY
WARNING!
OR DEATH: READ AND FOLLOW ALL
INSTALLATION INSTRUCTIONS!
WARNING : AN UNBALANCED DOOR OR
ONE THAT STICKS OR BINDS MAY
PREVENT THE SENSING SYSTEM FROM
WORKING PROPERLY, CAUSING INJURY OR
DEATH. ENSURE DOOR IS PROPERLY
BALANCED AND ELIMINATE ANY STICKING OR
BINDING PRIOR TO INSTALLATION OF
OPERATOR.
• A PROPERLY BALANCED DOOR WILL OPEN
SLOWLY FROM A 3/4 OPEN POSITION, CLOSE
SLOWLY FROM A 3/4 CLOSED POSITION, AND
REMAIN STILL AT A 1/2 OPEN POSITION. IF
THE DOOR IS NOT PROPERLY BALANCED,
HAVE A QUALIFIED SERVICE PERSON MAKE
REPAIRS TO CABLES, SPRING ASSEMBLIES
AND OTHER DOOR HARDWARE BEFORE
INSTALLING THE OPENER
WARNING:
LARGE MOVING OBJECT (SIMILAR TO MOVING
A WALL). THE SPRINGS, PULLEYS, CABLES
AND MOUNTING HARDWARE UTILIZED TO
BALANCE ITS OPERATION ARE UNDER
EXTREME TENSION AT ALL TIMES AND CAN
CAUSE SERIOUS PERSONAL INJURY, EVEN
DEATH, IF DISTURBED. DO NOT ATTEMPT
ADJUSTM ENT.
• CALL A QUALIFIED SERVICE PERSON TO
MOVE, LOOSEN OR ADJUST DOOR SPRINGS
OR HARDWARE.
• REMOVE ALL ROPES AND REMOVE OR MAKE
INOPERATIVE ALL LOCKS CONNECTED TO
THE GARAGE DOOR BEFORE INSTALLING
THE OPENER.
• DO NOT WEAR RINGS, WATCHES OR LOOSE
CLOTHING WHILE INSTALLING OR SERVICING
GARAGE DOOR OPENERS. WEAR SAFETY
GOGGLES OR OTHER PROTECTIVE
EYEWEAR.
• INSTALL THE DOOR OPENER 8zFT OR MORE
ABOVE THE FLOOR. MOUNT THE MANUAL
RELEASE 6 FT ABOVE THE FLOOR.
YOUR GARAGE DOOR IS A
• REINFORCE LIGHTWEIGHT FIBERGLASS,
ALUMINUM AND STEEL DOOR TOP SECTIONS
TO AVOID DAMAGE AND TO INSURE PROPER
OPERATION OF THE SAFETY REVERSE
SYSTEM. CONTACT YOUR DOOR
MANUFACTURER FOR A REINFORCEMENT
KIT.
• DO NOT CONNECT THE OPENER TO A
POWER SOURCE UNTIL INSTRUCTED TO DO
SO.
• CHECK LOCAL BUILDING AND ELECTRICAL
CODES FOR MANDATORY INSTALLATION AND
WIRING REQUIREMENTS.
• DISCONNECT POWER AT FUSE BOX OR
CIRCUIT BREAKER BEFORE ATTEMPTING
ANY PERMANENT WIRING CONNECTIONS.
FOLLOW ALL LOCAL, STATE AND FEDERAL
MANDATED ELECTRICAL CODES.
• LOCATE THE CONTROL PUSH BUTTON:
A. WITHIN SIGHT OF THE DOOR, AND,
B. AT A MINIMUM HEIGHT OF 5 FT TO
DISCOURAGE UNAUTHORIZED OPERATION,
AND,
C. AWAY FROM MOVING PARTS OF THE
DOOR.
• INSTALL THE PUSH BUTTON WARNING LABEL
(“This door is operated by a limited ...”) NEXT TO
THE CONTROL PUSH BUTTON IN A
PROMINENT LOCATION. INSTALL THE
MANUAL RELEASE INSTRUCTION CARD,
ATTACHING IT ON OR NEXT TO THE MANUAL
RELEASE MECHANISM.
• ADJUST THE SENSITIVITY ADJUSTMENTS
ENOUGH TO ALLOW THE DOOR TO OPERATE,
BUT NOT SO FIRMLY AS TO EXERT
EXCESSIVE PRESSURE ON AN OBSTRUCTION
BEFORE REVERSING.
• AFTER INSTALLING THE OPENER, THE DOOR
SHOULD REVERSE WHEN IT CONTACTS A
1-1/2" HIGH OBJECT (A PIECE OF STANDARD
2 X 4 BOARD LAID FLAT) ON THE FLOOR.
6
C: INSTALLING THE OPERATOR
IMPORTANT!
IDENTIFY YOUR DOOR TYPE FROM THOSE ILLUSTRATED BELOW.
104367
SECTIONAL DOOR
CURVED TRACK
ONE PIECE DOOR
HORIZONTAL TRACK
JAMB HARDWARE
HIGH ARC OF
DOOR TRAVEL
TRACK
DOOR DOOR
FOR THESE TYPES OF DOORS USE 1/2 HP
MODEL LT 50.
USE 10 FT OR 12 FT RAIL ASSEMBLY
(MATCH DOOR HEIGHT)
HIGH ARC OF
DOOR TRAVEL
TRACK
104368
ONE PIECE DOOR
NO TRACK
JAMB HARDWARE
HIGH ARC OF
DOOR TRAVEL
DOOR
JAMB
HARD-
WARE
ONE PIECE DOOR
NO TRACK
PIVOT HARDWARE
HIGH ARC OF
DOOR TRAVEL
DOOR
PIVOT
NOTE:
THE MODEL LT 50 CANNOT BE USED TO OPERATE
THESE TYPES OF DOORS - CONTACT THE
FACTORY FOR MORE INFORMATION.
SPRINGS, PULLEYS, CABLES AND MOUNTING HARDWARE USED TO
BALANCE YOUR GARAGE DOOR ARE UNDER EXTREME TENSION AT ALL
TIMES AND CAN CAUSE SEVERE INJURY OR DEATH IF DISTURBED.
WARNING
REINFORCE THE HEADER WALL
Reinforce the header wall (wall above the door
opening as required, to ensure rigid mounting of the
front wall bracket.
Locate the vertical centerline of your garage door
and mark it on the header above the door and on the
top rail of the door.
DO NOT ATTEMPT ADJUSTMENT.
Reinforce with 2” x 6”
as required to insure
rigid mounting.
Vertical Center
Line
110048
7
C: INSTALLING THE OPERATOR
FRONT MOUNTING BRACKET MUST BE INSTALLED TO A STRUCTURAL SUPPORT
(STUD) ON THE HEADER WALL. FAILURE TO DO SO COULD CAUSE SENSING
SYSTEM TO MALFUNCTION, RESULTING IN ENTRAPMENT, INJURY OR DEATH.
WARNING
REINFORCE HEADER USING 2 x 6 WOOD STUDS AND LAG SCREW OR ANGLE
IRON AND LAG SCREWS AS NECESSARY (NOT PROVIDED).
HORIZONTAL
LINE
VERTICAL
CENTERLINE
STEP 1: Mounting the Front Bracket: Mark a vertical centerline on the
header above the door. By manually raising the door, determine the high arc
of the door’s travel (see illustration, top of previous page) and using a level,
transfer this measurement to the header (see illustration at left). Draw a
horizontal line, crossing the previously drawn centerline, at this point. Install
the Front Mounting Bracket securely wit lag screws as shown below. If
necessary, reinforce the header with steel angle iron or wood to ensure a
secure mount.
104369
Mount the Front Mounting Bracket securely with lag screws as
shown in figure at right. If necessary, reinforce the header with
steel angle iron or wood to ensure a secure mount.
STEP 2: Raise the front of the Rail/Chain assembly so that the
Front Rail Bracket and Wall Mounting Bracket align. Insert the
1/4” x 4” bolt and tighten nut loosely for now. Later in the
installation, this nut must be tightened securely.
Wall
Mounting
Bracket
Wall Mounting Bracket
Nut
1/4” x 4”
Hex Head Bolt
110050-1
110049
1/2” Above
High Arc Mark
Front Wall
Bracket
Center of
High Arc Mark
Door
STEP 3 — Raise the Opener and rest the Power Unit
on a ladder or other sturdy support. Open the door the
full open position. Allow 2" of space between the Tee
Rail and the top section of the door (as shown in the
illustration, below on the right).
Cardboard or Cloth to
protect the Housing
NOTE: Since the Opener will be secured permanently in this position,
open and close the door a few times to be sure the door does not rub on
the Tee Rail and that you have allowed the proper clearances before
proceeding.
8
SECTIONAL DOORS AND ONE-PIECE DOORS
WITH TRACK
ALLOW 2” BETWEEN
TOP OF DOOR AND RAIL
DOOR FULLY
OPEN
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