Chamberlain T User manual

Serial #
(located on electrical box cover)
Installation Date
Wiring Type
OWNER'S MANUAL
MODEL T
INDUSTRIAL DUTY DOOR OPERATOR
C2 Wiring
F A C T O R Y S E T
See page 8 for
other wiring
configurations
2 YEAR WARRANTY NOT FOR RESIDENTIAL USE
LISTED DOOR OPERATOR
41B6

MOTOR
TYPE: .................................Continuous duty
HORSEPOWER:.................1/3, 1/2, 3/4 & 1 Hp
Single or Three phase
SPEED:...............................1725 RPM
VOLTAGE: ..........................115, 220, 230 Single phase
230, 460, 575 Three phase
CURRENT: .........................See motor nameplate
2
MECHANICAL
DRIVE REDUCTION:.............Primary: Heavy duty
(5L) V-Belt. Secondary: #41 chain/sprocket.
Output: #48 chain (1/3 &1/2Hp) or #41 chain (3/4 &1Hp)
OUTPUT SHAFT SPEED:.....140 R.P.M.
DOOR SPEED:......................11" - 12” per sec.
depending on door
BRAKE: .................................Solenoid actuated disc
brake on 3/4 & 1Hp
BEARINGS:...........................Output Shaft: Shielded
Ball Bearing. Clutch Shaft: IronCopper sintered and
oil impregnated.
SAFETY
DISCONNECT: .............Quick disconnect door arm for
emergency manual door operation.
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 three button station.
OPEN/CLOSE/STOP
WIRING TYPE:.................C2 (Factory Shipped)
Momentary contact to OPEN & STOP, constant
pressure to CLOSE, open override plus wiring for
sensing device to reverse. See page 8 for optional
control settings.
LIMIT ADJUST:................Linear driven, fully
adjustable screw type cams. Adjustable to 24 feet.
WEIGHTS AND DIMENSIONS
HANGING WEIGHT: .........80-110 LBS.
10-1/2”
Door Height Plus 4 feet (minimum)
20-1/2”
13-1/8”
HIGHEST POINT OF DOOR TRAVEL
4”
*
*
*- For Units with Brake add 3-1/2”
(Standard on 3/4 & 1Hp models Optional on 1/3 & 1/2Hp)

3
PREPARATION
KEEP DOOR BALANCED. STICKING OR BINDING
DOORS MUST BE REPAIRED. DOORS, DOOR
SPRINGS, CABLES, PULLEYS, BRACKETS AND
THEIR HARDWARE MAY BE UNDER EXTREME
TENSION AND CAN CAUSE SERIOUS PERSONAL
INJURY OR DEATH. CALL A PROFESSIONAL DOOR
SERVICEMAN TO MOVE OR ADJUST DOOR
SPRINGS OR HARDWARE.
WARNING
CAUTION
WARNING
WARNING
SPACER BRACKET
(Mounted Nylon Pad Side Up)
FRONT IDLER ASSEMBLY
TROLLEY CARRIAGE
L - SLOT
Master Link
Takeup Bolt
Roller Chain
Master Link
Hex
Nut
Straight Arm
Lockwasher
Hex Nut
TROLLEY ASSEMBLY
Take-Up Bolt
Trolley Carriage
Reel Chain
around Idler and
over Spacer Brackets
POWERHEAD ATTACHMENT
1. Position the track assembly on the frame of the
powerhead so that the motor side of operator is in
back (away from door ).
2. Loosely install two 3/8"-16 x 3/4" bolts and nuts in
third hole from the end of the track .
3. Align the track so that the bolts inserted in step 2
line up with the L-Slots in the frame.
4. Connect the track to the powerhead by fastening
two 3/8"-16 x 3/4" bolts and nuts through the frame
and the end holes in track. Tighten all four bolts to
secure the track to the powerhead.
TROLLEY CARRIAGE / CHAIN ATTACHMENT
1. Attach the take-up bolt to the trolley carriage
using 3/8-16 hex nuts and lock washer, as shown
below.
2. Using one of the master links, attach the chain to
the other end of the trolley carriage. Reel the chain
around the front idler shaft, over the spacer brackets,
back to the drive shaft sprocket, and then to the take-
up bolt on the carriage.
3. Using the other master link, attach the chain to
the take-up bolt and tighten to the desired chain
tension.
Chain Tension: With trolley positioned at either end
of the track, a properly adjusted chain will sag about
3" at the mid-point. If necessary, remove links from
the chain to achieve proper adjustment.
TRACK ASSEMBLY
1. Using the 3/8"-16 x 3/4 " bolts and flange hex
nuts supplied, assemble the operator track by
installing and tightening the track spacer brackets.
Position the spacers evenly over the length of the
track. NOTE: The nylon pad on the spacer bracket
should face up.
2. Using (2) 3/8"-16 x 1" bolts and lock washers,
install the front idler assembly to the second set of
holes of one end of the track. Refer to the illustration
below.
3. Slide the trolley carriage onto the track so that
the take-up bolt will be toward the operator.

4
Carpenter's
Level Header
Wall
High Arc
Point
IMPORTANT NOTE: Before the operator is installed, be sure the door has been properly aligned and is working
smoothly. Although each installation will vary due to particular building characteristics, refer to the following
general procedures to install the operator.
MOUNT HEADER BRACKET
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. In such
cases, the operator may be mounted up to 24” off
center on torsion spring doors. Extension springs
require center mounting.
1. Locate the center of the door and mark a line on
the wall directly above the door. Extend this line up
the wall.
2. Determine the highest point of door travel.
Slowly raise the door and observe the action of the
top section. When the top section reaches its highest
point, use a level and project a line from this point to
the center line the of the door.
MOUNT OPERATOR
1. Allowing the motor to rest on the floor, raise the
front end of the track assembly to the front header
bracket and fasten using the 3/8”dia. x 6.40” long
pivot shaft and cotterpins supplied.
3. Using the projected lines for location, mount a
suitable wood block or length of angle iron to the wall
above the door opening. Refer to the illustration
below. This will provide a mounting pad for the front
header bracket of the operator. If necessary
reinforce the wall with suitable mounting brackets to
ensure adequate support of mounting pad. Using
suitable hardware, mount the (U shaped) front header
bracket to the pad.
Header Bracket Drill Pattern
2. Swing the operator to a horizontal position above
the guide rails and temporarily secure with a suitable
rope, chain, or support from the floor. Now open
garage door slowly, being careful not to dislodge the
temporary support. Using the door as a support,
place a level against the rail and shim the operator
until it is horizontal. Make sure that the operator is
aligned with the center line of the door.
Door Travel
Projection
INSTALLATION INSTRUCTIONS
Header Attachment
Pivot shaft
Cotterpins
Using the Door as support, shim
operator to a horizontal position.
Guide
Rails
Operator Alignment
OF DOOR
3.50” 1.75”
4” MIN.
High Rise Point
Projection Line

5
INSTALLATION INSTRUCTIONS
OPERATOR SUPPORT
1. The illustration below shows a typical method of
hanging the operator from the ceiling. Each
installation may vary, but in all cases side braces
should be used for additional strength.
2. For mounting of the support brace(s) to the
powerhead, Four holes (clearance up to 3/8” bolts)
are located on each side of frame.
NOTE: If the operator is longer than 15 feet, use of a
mid-span support is recommended.
STRAIGHT ARM ATTACHMENT
1. Fully close the door and move the trolley slider to
within (2”) two inches of the front idler.
2. Latch the straight door arm to the fixed roll pin in
the trolley carriage. Make sure the open side of
notch on the arm faces the doorway.
3. Attach the door bracket to the door arm using the
3/8”-16 x 1” bolt and nylon locking nut provided.
Leave the nut and bolt loose enough to allow the two
pieces to pivot freely.
4. Using 3/8” hardware provided, bolt the curved
door arm to the straight arm, aligning the mounting
holes in such a way that the door bracket pivot bolt
will be in line with the top rollers on the door.
5. Position the door bracket to the center line on the
door. Using suitable hardware, attach the door
bracket to the door. Many installations, except solid
wood doors, will require additional support for the
door. Refer to the illustration below.
IMPORTANT NOTE: At this time, ensure all bolts
and lag screws are properly secured.
Powerhead Support Brace
Mid-Span
Support Brace
Center Line of Door
Straight Arm
Door Bracket
Curved
Door Arm
Top
Roller
Pivot Bolt
FAILURE TO SUSPEND THE OPERATOR
SECURELY MAY RESULT IN SERIOUS PERSONAL
INJURY OR DEATH, AND/OR PROPERTY DAMAGE.
WARNING
CAUTION
WARNING
WARNING

6
TO AVOID SERIOUS PERSONAL INJURY OR DEATH
FROM ELECTROCUTION, DISCONNECT ELECTRIC
WARNING
LIMIT SWITCH ADJUSTMENT
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 actu-
ator. 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.
Retaining Plate
CLOSE Limit Switch
SAFETY
(Aux. Close) Limit Switch
OPEN Limit Switch
Actuator
Aux. OPEN Limit Switch
SENSING EDGES & PHOTO EYES
Sensing devices supplied for door industry type operators
with an isolated normally open (N.O.) output are compati-
ble with your operator. This includes pneumatic and elec-
tric 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 pro-
vided with the edge. The sensing edge may be electrical-
ly 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 oper-
ator 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 opera-
tor. 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.
IT IS STRONGLYRECOMMENDED THAT A
SAFETY PHOTO EYE OR SENSING EDGE BE
USED IN CONJUNCTION WITH THE OPERATOR.
NOTICE

7
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.
POWER WIRING CONNECTIONS
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 correct
this, interchange any two of the incoming three phase
power lines.
CONDUIT ACCESS
WARNING
Do Not Run Power &
Control Wiring in the
Same Conduit
7/8” Dia Knockouts for
control wiring conduit access
(1 on end panel)
1-1/16’ Dia Knockouts for
power wiring conduit access
(1 on end panel)
WARNING
CAUTION
WARNING
WARNING
DISCONNECT POWER AT THE FUSE BOX BEFORE
PROCEEDING.
OPERATOR MUST BE PROPERLY GROUNDED AND
PERMANENTLY WIRED IN ACCORDANCE WITH
LOCAL ELECTRICAL CODES. NOTE: THE
OPERATOR SHOULD BE ON A SEPARATE FUSED
LINE OF ADEQUATE CAPACITY.
ALL ELECTRICAL CONNECTIONS MUST BE MADE
BY A QUALIFIED INDIVIDUAL.
WARNING
CAUTION
WARNING
WARNING
TO AVOID DAMAGE TO DOOR AND OPERATOR,
MAKE ALL DOOR LOCKS INOPERATIVE. SECURE
LOCK(S) IN "OPEN" POSITION.
IF THE DOOR LOCK NEEDS TO REMAIN
FUNCTIONAL, INSTALL AN INTERLOCK SWITCH.
1. 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.
2. Using the 1-1/16” dia conduit access
knockout as shown below, bring supply lines to the
operator and connect wires to the terminals indicated
on the WIRING CONNECTIONS DIAGRAM.
DO NOT TURN POWER ON UNTIL YOU HAVE
FINISHED MAKING ALL POWER AND CONTROL
WIRING CONNECTIONS AND HAVE COMPLETED
THE LIMIT SWITCH ADJUSTMENT PROCEDURE.
IMPORTANT: THIS UNIT MUST BE PROPERLY
GROUNDED. A GROUND SCREW IS SUPPLIED IN
THE ELECTRICAL BOX FOR CONNECTION OF
THE POWER SUPPLY GROUND WIRE. FAILURE
TO PROPERLY GROUND THIS UNIT COULD
RESULT IN ELECTRIC SHOCK AND SERIOUS
INJURY.
POWER WIRING

8
CONTROL WIRING
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 jumper setting below.
Constant pressure on close (C2 wiring)
Red jumper wire was placed on terminal #2 in
electrical enclosure. The operator will require
constant pressure on close control in order to keep
door moving in the close direction.
Momentary contact on close (B2 wiring)
Move red jumper wire from terminal #2 to terminal
#3. The operator will require only momentary
contact to close the door.
WIRING DIAGRAM
This Operator has
Control Wiring.
SUPPLEMENTAL WIRING DIAGRAM(S)
REPLACEMENT WIRING DIAGRAM
Note: Supplemental Wiring Diagrams are
to be used in addition to 1742-1.
Replacement Wiring Diagram is to be used
in place of 1742-1.
SPECIAL CONTROL
WIRING DATA
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.
WARNING
INSTALL THE CONTROL STATION WHERE THE DOOR
IS VISIBLE, BUT AWAY FROM THE DOOR AND ITS
HARDWARE. IF CONTROL STATION CANNOT BE
INSTALLED WHERE DOOR IS VISIBLE, OR IF ANY
DEVICE OTHER THAN THE CONTROL STATION IS
USED TO ACTIVATE THE DOOR, A REVERSING EDGE
MUST BE INSTALLED ON THE BOTTOM OF THE DOOR.
FAILURE TO INSTALL AREVERSING EDGE UNDER
THESE CIRCUMSTANCES MAY RESULT IN SERIOUS
INJURYOR DEATH TO PERSONS TRAPPED
BENEATH THE DOOR.
WARNINGW A R N I N G
TO PREVENT ENTRAPMENT
DO NOT START DOOR DOWNWARD
UNLESS DOORWAY IS CLEAR
OPEN
CLOSE
STOP
Standard
Control Station
WARNING Notice
Push
Buttons
IMPORTANT: Mount WARNING NOTICE beside or
below the push button station.
MOUNT WARNING NOTICE
DETERMINE WIRING TYPE
Refer to the wiring diagram located on the inside cover the electrical box to determine the type of control wiring.
Wiring Diagram label on inside cover
of electrical box
Wiring
Type
SPECIAL CONTROL WIRING
If your operator was shipped from the factory with
non-standard control wiring or with optional acces-
sories 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.
IMPORTANT NOTE: If your wiring diagram is missing,
or you are unsure of the wiring type for your operator, con-
tact the customer service department @ 1-800-528-2806.

9
CONTROL WIRING (con’t)
Radio Controls
On all models with type B2 control wiring, a terminal
bracket marked R1 R2 R3 is located on the outside of
the electrical enclosure. All standard radio control
receivers (single channel residential type) may be
mounted to this bracket. The operator will then open
a fully closed door, close a fully open door, and
reverse a closing door from the radio transmitter.
However, for complete door control from a
transmitter, a commercial three-channel radio set
(with connections for OPEN/CLOSE/STOP) is
recommended.
Additional Access Control Equipment
Locate any additional access control equipment as desired (but so that the door will be in clear sight of the
person operating the equipment), and connect to the terminal block in the electrical enclosure as shown on the
FIELD WIRING CONNECTIONS diagram. Any control with a normally (N.O.) isolated output contact may be
connected in parallel with the OPEN button. More than one device may be connected in this manner. Use 16
gauge wire or larger for all controls. DO NOT USE THE CONTROL CIRCUIT TRANSFORMER (24VAC) IN THE
OPERATOR TO POWER ANY ACCESS CONTROL EQUIPMENT OTHER THAN A STANDARD RESIDENTIAL
TYPE RADIO RECEIVER.
External Interlock Switch
The operator has a terminal connection for an external interlock switch. This switch must be a normally closed
(N.C.) two-wire device with a contact rating of at least 3 amps @ 24VAC. When such a switch is connected as
shown on the FIELD WIRING CONNECTIONS diagram, the control circuit will be disabled when the switch is
actuated, thereby preventing electrical operation of the door from the control devices.
WARNING
CAUTION
WARNING
WARNING
DO NOT USE RADIO CONTROLS WITH YOUR
OPERATOR UNLESS YOU HAVE INSTALLED
SOME TYPE OF ENTRAPMENT PROTECTION
DEVICE. THE USE OF RADIO CONTROLS
PRESENTS POTENTIAL HAZARDS DUE TO THE
USER’S ABILITY TO OPEN OR CLOSE THE
DOOR WHEN OUT OF SIGHT OF THE DOOR. IN
ADDITION, IF A SINGLE CHANNEL CONTROL IS
USED, THE USER WILL NOT BE ABLE TO STOP
THE DOOR FROM THE TRANSMITTER.
CLUTCH ADJUSTMENT
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.
CAUTION: The adjustable friction clutch is NOT
an automatic reversing device. An electric or
pneumatic reversing edge can be added to
bottom edge of door if desired.
Cotterpin
Adjusting Nut
Spring
Clutch Pulley
Clutch Plate
Clutch Pad
Washer

10
EMERGENCY DISCONNECT SYSTEM
Header
Bracket
Straight
Door Arm
Assembly
Emergency
Release
Handle
Door
Bracket
Door
Chain
Clevis
Pin
Trolley
Emergency
Disconnect
Track
Pull emergency
release handle
straight down.
Emergency disconnect
will open.
Emergency
Disconnect
Curved
Door Arm
Door Arm
Lift free end of
door arm to trolley.
Pull emergency handle
to allow arm to engage
roll pin. Release handle.
Emergency disconnect
will close.
Emergency
Disconnect
Door Arm
NOTICE
TO DISCONNECT DOOR FROM OPENER
TO RECONNECT DOOR ARM TO TROLLEY
DOOR ARM IS RELEASED FROM TROLLEY WHEN
EMERGENCY DISCONNECT OPENS.
TO AVOID BEING STRUCK BY DOOR ARM, DO NOT
STAND UNDER THE ROPE OR DOOR ARM WHEN
PULLING THE EMERGENCY RELEASE.
WARNING
CAUTION
WARNING
WARNING
TEST THE SYSTEM
Turn on power. Test all controls and safety devices
to make sure they are working properly. It will be
necessary to refer back to page 6 for fine adjustment
of the limit switches.
IMPORTANT NOTES:
Do not leave operator power on unless all safety
and entrapment protection devices have been
tested and are working properly.
Be sure you have read and understand all Safety
Instructions included in this manual.
Be sure the owner or person(s) responsible for
operation of the door have read and understand
the Safety Instructions, know how to electrically
operate the door in a safe manner, and know how
to use the manual disconnect operation of the
door operating system.
WARNING
CAUTION
WARNING
WARNING
DO NOT PLACE HANDS OR TOOLS IN OR
NEAR THE OPERATOR WHEN THE POWER IS
ON OR WHEN TESTING CONTROL OR SAFETY
DEVICES. ALWAYS DISCONNECT POWER
BEFORE SERVICING OR ADJUSTING THE
OPERATOR.

11
✳✳ Use SAE 30 Oil (Never use grease or silicone spray).
✔✔Repeat ALL procedures.
■■ Do not lubricate motor. Motor bearings are rated for continuous operation.
■■Do not lubricate clutch or V-belt.
■■Inspect and service whenever a malfunction is observed or suspected.
■■CAUTION: BEFORE SERVICING, ALWAYS DISCONNECT OPERATOR FROM POWER SUPPLY.
Check at the intervals listed in the following chart.
HOW TO ORDER REPAIR PARTS
OUR LARGE SERVICE ORGANIZATION
SPANS AMERICA
INSTALLATION AND SERVICE INFORMATION
ARE AVAILABLE 6 DAYS A WEEK
CALL OUR TOLL FREE NUMBER - 1-800-528-2806
HOURS 7:00 TO 3:30 p.m. (Mountain Std. Time)
MONDAY Through SATURDAY
WHEN ORDERING REPAIR PARTS
PLEASE SUPPLY THE FOLLOWING INFORMATION:
PART NUMBER DESCRIPTION MODEL NUMBER
ADDRESS ORDER TO:
THE CHAMBERLAIN GROUP, INC.
Electronic Parts & Service Dept.
2301 N. Forbes Blvd., Suite 104
Tucson, AZ 85745
EVERY EVERY EVERY
ITEM PROCEDURE 3 MONTHS 6 MONTHS 12 MONTHS
Drive Chain Check for excessive slack.
Check & adjust as required.
Lubricate.* ●✔
Sprockets Check set screw tightness ●●✔✔
Clutch Check & adjust as required ●●✔✔
Belt Check condition & tension ●●✔✔
Fasteners Check & tighten as required ●●✔✔
Manual Disconnect Check & Operate ●●✔✔
Bearings & Shafts Check for wear & lubricate ●●✔✔
MAINTENANCE SCHEDULE
BRAKE ADJUSTMENT
A solenoid brake is standard on 3/4 and 1 horsepower models, and is optional on 1/3 and 1/2 horsepower
models. The brake is adjusted at the factory and should not need additional adjustment for the the life of the
friction pad.
Replace friction pads when necessary. Refer to the
illustration for identification of components for the
solenoid type brake system.
Friction Pads
Release Lever
Plate Assembly
Solenoid
Solenoid Brake System

SINGLE PHASE SCHEMATIC DIAGRAM
4356
12
43
21
65
L2
(YE)
(PUR)
(BL)
EXTERNAL
STOP
345 T1
24VAC
SEC.
PRI.
AUX. CLOSE
LIMIT SWITCH
NC C
1
7
10
OPEN
SAFETY EDGE
OPEN & CLOSE LIMIT SWITCH
AUX. OPEN
C
NO
NC
LIMIT SWITCH
NC C
TO MOTOR
POWER IN L1
1 PHASE
INTERLOCK
OP
R1
OP
OP
CL
CL OP
CL
OP
14
13
OVERLOAD
R1
OPEN & CLOSE
R2
R1
OPEN
CLOSE 2
14
13
CL
CL LIMIT SWITCH
NC
CLOSE
C
R1
(BK)
(BK)
(BK)
(BRN)
(BR)
(YEL)
(OR) (OR) (OR) (OR)
(RED) (RED)
(OR)
(YEL)
(YEL)
(PUR)
(OR)
(PUR) (PUR) (PUR) (PUR)
(P)
R3 (RED)
(YEL)
(OR)
(OR)
(SEE NOTE #1)
(PUR)
TIMER TO CLOSE
(PUR)
(OPTIONAL)
(WHEN PRESENT)
230V BRAKE
(GY) (GY)
RADIO TO
A1 A2
A2 A1
(YEL)
NUT
WIRE
8
5
YEL
BL
PUR 1
BL/BK
BL/BK
230 VOLT - 1 PHASE
MOTOR CONNECTION
NOTE:
1. Voltage same as line voltage.
IR
CNO
(R)
IR
CNO
(Y)
115V MODELS
IR (BK)
230V MODELS
(GY)
4
GY
23
(WHEN PRESENT)
115V BRAKE
8
5
YEL
BL
PUR 1
BL/BK
BL/BK
115 VOLT - 1 PHASE
MOTOR CONNECTION
4
GY
3
2
(SEE NOTE #1)
(BRN) NC C
HAND CHAIN
INTL'K SWITCH
(WHEN PRESENT)
(RED)
C2 WIRING - Constant Presssure to Close
RED WIRE ON TERMINAL #2 (Shipped from Factory)
B2 WIRING - Momentary Contact to Close
MOVE RED WIRE FROM TERMINAL #2 TO TERMINAL #3
*
CLOSE CONTROL WIRING OPTIONS
- Shipped from Factory
*
12
1742-1

13
SINGLE PHASE WIRING DIAGRAM
- Shipped from Factory
EXT.
INTLK.
AND CLOSE
TO OPEN
SAFETY
BRAKE
( WHEN REQ'D )
YELLOW
( OPTIONAL )
BL-BK
BL-BK
BL-BK
BL-BK
P
BL
Y
P
GY
Y
GY
BL
BL-BK
BL-BK
TO MOTOR
PURPLE GREY BLUE
115V. CONNECTION
2
5
4
8
1
3
1
8
5
4
3
2
( WHEN REQUIRED )
STOP
ORANGE
115V. BRAKE
( WHEN REQUIRED )
230V. BRAKE
SOLENOID SOLENOID
1
GREY
ORANGE RED
OPEN
CLOSE
32
PURPLE PURPLE ORANGE
RED
4
ORANGE YELLOW
BROWN
CLOSE
PURPLE
PURPLE
INTERLOCK
RED
ORANGE
ORANGE
C NO R1
RELAY
NC
RED
BLACK
ORANGE
YELLOW
3
1OPEN
A1
5
13
WHITE
PURPLE
BLUE
PURPLE
YELLOW
RED
GREY
1
A1
13
3
5
WHITE
SEE NOTE 2
BLACK
WHITE
YELLOW
4
2
A2
6
14
PURPLE
PURPLE
SUPPLY
SUPPLY
BLACK
BLACK
2
ONLY
115V.
ONLY
230V.
A2
14
4
6RED
AUX.TERMINAL
BLOCK FOR RADIO
OPEN
C
L/S NC
AUX.OPEN
C
L/S NC
NO
RECEIVER
RADIO
ORANGE
ORANGE
R3
PURPLE
ORANGE
YELLOW
RED
RED
R2
R1
YELLOW
ORANGE
GROUND
1 PHASE
POWER IN
L1
L1
YELLOW
5 7
ORANGE
BROWN
YELLOW
10
GREY BLACK
L2
L3L2
WHITE BLACK WHITE
OVER LOAD
WIRE NUT
NO
BLACK
PURPLE
RED
YELLOW
IR
RELAY
NC
ORANGE
BLACK
BLACK
BLACK
LOAD
24VAC
YELLOW
WHITE
T1
C
LINE
( OPTIONAL )
SAFETY
PURPLE
TO TERMINAL #3
GREY
GREY
BLACK
BROWN
PURPLE
PURPLE C
NC L/S
CLOSE
C
NC L/S
PURPLEPURPLE
TO TERMINAL #2
TIMER
CONTACTOR
CLOSE
LIMIT SWITCHES
OPEN
LIMIT SWITCHES
230V. CONNECTION
SEE NOTE
BELOW
EDGE
*
**
**
**
C2 WIRING:
Constant Presssure to Close
RED WIRE ON TERMINAL
#2 (Shipped from Factory)
B2 WIRING:
Momentary Contact to Close
MOVE RED WIRE FROM
TERMINAL #2 TOTERMINAL #3
*
CLOSE CONTROL
WIRING OPTIONS
*
NOTES:
1) TO REVERSE MOTOR DIRECTION: INTERCHANGE PURPLE &
GRAY MOTOR LEADS AT CONTACTOR 1 & 3.
2) WIRE MUST BE REMOVED FOR 23OV 1PH OPERATION.
**- Transformer Primary & Relay Voltage same as Line Voltage.
1742-1

4356
12
43
21
65
L3
L2
(GY)
(PUR)
(YEL)
EXTERNAL
STOP
345 T1
24VAC
SEC.
PRI.
AUX. CLOSE
LIMIT SWITCH
NC C
1
7
10
OPEN
SAFETY EDGE
OPEN & CLOSE LIMIT SWITCH
AUX. OPEN
C
NO
NC
LIMIT SWITCH
NC C
TO MOTOR
POWER IN
L1
3 PHASE
INTERLOCK
OP
R1
OP
OP
CL
CL OP
CL
OP
14
13
OVERLOAD
R1
OPEN & CLOSE
R2
R1
OPEN
CLOSE 2
14
13
CL
CL LIMIT SWITCH
NC
CLOSE
C
R1
(BK)
(BK)
(BK)
(BRN)
(BR)
(YEL)
(OR) (OR) (OR) (OR)
(RED) (RED)
(OR)
(YEL)
(YEL)
(PUR)
(OR)
(PUR) (PUR) (PUR) (PUR)
(PUR)
R3 (RED)
(BRN)
(YEL)
(OR)
(OR)
(SEE NOTE #1)
(PUR)
TIMER TO CLOSE
(PUR)
(OPTIONAL)
(WHEN PRESENT)
230V BRAKE
(GY) (GY)
RADIO TO
A1 A2
A2 A1
(YEL)
NUT
WIRE
2
3
YEL
BRN
BRN
PUR
GY 1
6
9
BL/BK
BL/BK
O/L
4
7
85
(WHEN PRESENT)
230V BRAKE
2
3
YEL
BRN
BRN
PUR
GY 1
6
9
BL/BK
BL/BK
O/L
4
7
85
230 VOLT - 3 PHASE
MOTOR CONNECTION 460 VOLT - 3 PHASE MOTOR CONNECTION
(SEE NOTE #2)
- SEE NOTE #2
*
**
(BK) (BK)
OVERLOAD
(SEE NOTE #2)
NC C
HAND CHAIN
INTL'K SWITCH
(WHEN PRESENT)
(BRN)
(WHEN PRESENT)
575V BRAKE
BRN
BRN
3BL/BK
BL/BK
O/L
1
2*
YEL
PUR
GY
575 VOLT - 3 PHASE
MOTOR CONNECTION
(RED) (RED)
C2 WIRING - Constant Presssure to Close
RED WIRE ON TERMINAL #2 (Shipped from Factory)
B2 WIRING - Momentary Contact to Close
MOVE RED WIRE FROM TERMINAL #2 TO TERMINAL #3
*
CLOSE CONTROL WIRING OPTIONS
- Shipped from Factory
*
NOTE:
1. Voltage same as line voltage
2. Overload in motor for models up to 3/4 Hp, located in limit box for 1 Hp and above.
14
THREE PHASE SCHEMATIC DIAGRAM 1742-3

THREE PHASE WIRING DIAGRAM 1742-3
C NO NC
R1
RELAY
BRAKE
( WHEN REQ'D )
YELLOW
( OPTIONAL )
BL-BK
BL-BK
TO MOTOR
PURPLE GREY
ORANGE GREY ORANGE RED PURPLE PURPLE ORANGE
RED
ORANGE YELLOW BROWN
PURPLE
PURPLE
INTERLOCK
RED
ORANGE
ORANGE
RED
ORANGE
ORANGE
3
1OPEN
A1
5
13
WHITE
PURPLE
PURPLE
YELLOW
RED
GREY
1
A1
13
3
5
BLACK
YELLOW
4
2
A2
6
14
PURPLE
PURPLE
BLACK
2
A2
14
4
6
AUX.TERMINAL
BLOCK FOR RADIO
OPEN
C
L/S
NC
AUX.OPEN
C
L/S
NC
NO
RECEIVER
RADIO
ORANGE
R3
PURPLE
ORANGE
YELLOW
RED
RED
R2
R1
YELLOW
ORANGE
YELLOW ORANGE BROWN YELLOW
GREY
BLACK
WIRE NUT
LOAD
24VAC
YELLOW
BLACK XFMR
LINE
( OPTIONAL )
SAFETY
PURPLE
TO TERMINAL #3
GREY
GREY
BLACK
BROWN
PURPLE
PURPLE
C
NC L/S
CLOSE
C
NC L/S
PURPLE
TO TERMINAL #2
TIMER
PURPLE
BLACK
BLACK
BLACK BLACK
T1 L1
L2
T2
T3 L3
95
96
OVERLOAD
( 1 HP & ABOVE ONLY )
BROWN
ORANGE
BLACK
BROWN
BROWN
BROWN
( 3/4 HP & BELOW)
BROWN
( 1 HP & ABOVE )
( 3/4 HP & BELOW )
( 3/4 HP & BELOW )
SEE NOTE:
EXT.
INTLK.
AND CLOSE
TO OPEN
SAFETY
STOP
1
OPEN
CLOSE
32 4
GROUND
3 PHASE
POWER IN
L1
L1
5 7 10
L2
L3L2
EDGE
*
CLOSE
LIMIT SWITCHES
OPEN
LIMIT SWITCHES
L3
CLOSE
PURPLE
ORANGE
**
**
- Shipped from Factory
C2 WIRING:
Constant Presssure to Close
RED WIRE ON TERMINAL
#2 (Shipped from Factory)
B2 WIRING:
Momentary Contact to Close
MOVE RED WIRE FROM
TERMINAL #2 TO TERMINAL #3
*
CLOSE CONTROL
WIRING OPTIONS
*
( WHEN REQUIRED )
230V. BRAKE SOLENOID
GY
BR
Y
BR
P
460V. CONNECTION
9
36
230V. CONNECTION
8
7
1
2
4
5
BL-BK
J
BL-BK
J
GY
BR
Y
BR
P
9
36
8
7
1
2
4
5
OVERLOAD
(UP TO 3/4 HP)
BL-BK
J
BL-BK
J
( WHEN REQUIRED )
230V. BRAKE SOLENOID
OVERLOAD
(UP TO 3/4 HP)
GY
BR
Y
BR
P
575V. CONNECTION
3
1
2
BL-BK
BL-BK
J
( WHEN REQUIRED )
575V. BRAKE SOLENOID
OVERLOAD
(UP TO 3/4 HP)
NOTES:
1) TO REVERSE MOTOR DIRECTION: INTERCHANGE ANY 2 OF THE 3 POWER WIRES AT
L1, L2 & L3, OR EXCHANGE PURPLE & GRAY MOTOR LEADS AT CONTACTOR 1 & 3
(3PH UNITS ONLY).
**- Transformer Primary Voltage same as Line Voltage.
15

16
S7
3
L8
4
S4
1
10
L7
2
8
6
9
7
L6
L4
L2
L3
L1
S1
S6
S8
S2 S5
S9
S3
L5
L2
5
ILLUSTRATED PARTS – ELECTRICAL BOX

ITEM
4
5
7
8
PART NO.
21-5115
21-5230
21-5460
21-5575
24-115-1
24-230-5
25-2006
25-2008
25-2010
25-2015
25-2020
25-4001-8K
25-4002-5K
25-4004-K
DESCRIPTION
Transformer, 115 Volts
Transformer, 230 Volts
Transformer, 460 Volts
Transformer, 575 Volts
Relay, 115 Volts
Relay, 230 Volts
Overload, 6 Amp
Overload, 8 Amp
Overload 10 Amp
Overload 15 Amp
Overload 20 Amp
Overload 1.2-1.8 Amp
Overload 1.6-2.5 Amp
Overload 2.5-4.0 Amp
VARIABLE COMPONENT KITS
T3311M T3321M T3323M T3343M T3353M T3325M T3338M T5011M T5021M T5023M T5043M T5053M T5025M T5038M T7511M T7521M T7523M T7543M T7553M T7525M T7538M T1011M T1021M T1023M T1043M T1053M
REPLACEMENT PART KITS - ELECTRICAL BOX
Below are replacement kits available for your operator. For replacement of electrical box, motor or brake components be sure to
match model number of your unit to kit number below to ensure proper voltage requirements. Optional modifications and/or
accessories included with your operator may add or remove certain components from these lists. Please consult a parts and
service representative regarding availability of individual components of kits specified below. Refer to page 11 for all repair part
ordering information.
Complete Electrical Box Replacement Kits
To order a complete electrical box kit, add a K74- prefix to the
model number of your operator. For example:
T5011M (Operator) = K74-T5011M (Electrical box replacement kit)
Electrical Box Sub-Assemblies
K72-12510 Limit Shaft Assembly
K72-12511 Limit Switch Assembly
Motor Kits
K20-1033B2 Models T3311M, T3321M
K20-3033B4 Models T3323M, T3338M, T3343M
K20-3033M5 Model T3353M
K20-51033B Model T3325M
K20-1050B2 Models T5011M, T5021M
K20-3050B4 Models T5023M, T5038M, T5043M
K20-3050M5 Model T5053M
K20-51050B Model T5025M
K20-1075B2 Model T7511M, T7521M
K20-3075B4 Models T7523M, T7538M, T7543M
K20-3075B5 Model T7553M
K20-51075B Model T7525M
K20-1100B2 Models T1011M, T1021M
K20-3100B4 Models T1023M, T1043M
K20-3100B5 Model T1053M
Shaft Assemblies
K72-12506 Clutch Shaft Assembly (1/3 & 1/2 HP Models)
K72-12507 Clutch Shaft Assembly (3/4 & 1HP Models)
K72-12508 Output Shaft Assembly (1/3 & 1/2 HP Models)
K72-12509 Output Shaft Assembly (3/4 & 1 HP Models)
Hardware, Track, Drive Chain Kits
K72-12491 Hardware Kit
See pg. 19 Drive Chain
See pg. 19 Track
Brake Kits
71-B120 115 Volt Models
71-B240 230-460 Volt Models
71-B575 575 Volt Models
K72-12510 LIMIT SHAFT ASSEMBLY KIT
Item
L1
L2
L3
L4
L5
L6
L7
L8
Description
Limit Shaft, Standard T
Flange Bearing, 3/8” I.D.
Limit Nut
Sprocket 48B9 x 3/8” Bore
Washer, Shim 3/8” I.D. x .050 THK.
Washer, Shim 3/8” I.D. x .010 THK.
Roll Pin, 1/8 DIA. x 1 Long
E Ring, 3/8”
Qty
1
2
2
1
1
4
1
1
P/N
11-10021
12-10028
13-10024
15-48B9A
80-10025
80-10026
86-CP05-108
87-E-038
* COMPLETE ELECTRICAL BOX KITS
Item
1
2
3
4
5
6
7
8
9
10
Descrition
Contactor
Electrical Box
Electrical Box Cover
(See Varaible Components)
(See Varaible Components)
24VAC DPDT Relay
(See Varaible Components)
(See Varaible Components)
Terminal Block, Radio
Terminal Block, 10 Position
Qty
1
1
1
1
1
1
1
1
1
1
P/N
03-8024-K
10-13790
10-10115
21-5XXX
24-XXX
24-24-1
25-2XXX
25-4XXX
42-10040
42-110
* Electrical Box Kits include parts from K72-12510 and K72-12511
17
Qty
1
4
2
2
4
4
8
2
2
Item
S1
S2
S3
S4
S5
S6
S7
S8
S9
P/N
10-10013
10-12553
10-12806
18-10036
23-10041
31-12542
82-PX04-20
82-PX06-16
84-LH-06
Description
Depress Plate
Nut Plate, Switch
Backup Plate
Spring, Depress Plate
Limit Switch
Standoff, Limit Switch
Screw, #4-40 Pan Head Phillips
Screw, #6-32 x 1” Pan Hd Phillips
Locknut, #6-32 Nylon Hex
K75-12511 LIMIT SWITCH ASSEMBLY KIT

18
H3
H4
H6
H8
H5
DRIVE CHAIN
TRACK
H2 O1
O9
O3 O2 O11
O8
O10
O9
C16
C3
C10
C2
C13
C14
C15
H7
10-10011M1
O2
O6
C10
B13 B11
B15 B9
27-10188
B2
MOTOR (SEE PG. 17)
H1
C11
C7 C4 C9 C3
C1
C8
C6
O7
O5
O4 O8
C5
C12
B6 B5 B12 B3 B10
B1
B4
B15
B7
B8
B14
B14
B16
10-10030
ELECTRICAL BOX
(SEE PG. 17))
17-6014 Brake Components
Standard on 3/4 & 1Hp units; Optional on 1/3 & 1/2Hp units
ILLUSTRATED PARTS - MODEL T

19
Doors to 24’
1
Refer to the parts lists below for replacement kits available for your operator. If optional modifications and/or accessories are included
with your operator, certain components may be added or remove from these lists. Individual components of each kit may not be
available. Please consult a parts and service representive regarding availability of individual components. Refer to page 11 for all
repair part ordering information.
CLUTCH SHAFT ASSEMBLY KITS
K72-12507 (1/3 &1/2 HP) OR K72-12506 (3/4 & 1 HP)
ITEM PART # DESCRIPTION QTY
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
Clutch Plate
Clutch Shaft
Bearing 3/4” I.D.
Sprocket, 48B10 x 3/4”
Cogged Belt
4L Motor Pulley 7” O.D.
Spring, Clutch (1/3 & 1/2 HP)
Spring, Clutch (3/4 & 1 HP)
Clutch Disc
Shim Washer Thick
Shim Washer Thin
Nut 3/4-16 Castle
Flatwasher 3/4” I.D.
Cotterpin 1/8” x 1-3/4” Long
Roll Pin 1/4” x 1-1/8” Long
Roll Pin 1/4” x 2” Long
Turac 3/4” Push on Fastener
1
1
2
1
1
1
1
1
1
2
3
1
5
1
1
1
1
OUTPUT SHAFT ASSEMBLY KIT
K72-12509 (1/3 &1/2 HP) OR K72-12508 (3/4 & 1 HP)
ITEM PART # DESCRIPTION QTY
O1
O2
O3
O4
O5
O6
O7
O8
O9
O10
O11
Output Shaft
Bearing, Flange
Sprocket, 41B10 x 3/4” Bore, PM
Sprocket, 48B10 x 3/4” Bore, Steel
Sprocket, 41B32 x 3/4” Bore
Sprocket, 48B10 x 3/4” Bore, PM
Drive Chain, #41 x 47 Pitches
Limit Chain, #48 x 33 Pitches
Shim Washer, Thim
Roll Pin, 1/4” Dia. x 1-1/8” Long
Roll Pin, 1/4” Dia. x 1-1/2” Long
Push Ring, 3/4” I.D.
1
2
1
1
1
1
1
1
2
2
1
1
11-10015
12-10331
15-41B10G1
15-48B10GXX
15-41B32GXX
15-48B10G1
19-41047M
19-48033
80-10023
86-RP08-102
86-RP08-108
87-P-075
10-10166
11-10014
12-10029
15-41B10G1
16-5L300
17-10165
18-10164
18-10168
39-10167
80-10022
80-10023
84-SH-76
85-FW-75
86-CP05-108
86-RP08-102
86-RP08-200
87-P-075
BRAKE ASSEMBLY KITS
ITEM PART # DESCRIPTION QTY
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
Brake Hub
Brake Solenoid Cover
Brake Release Lever
Brake Disc, Zinc Plated
Spring Cup for Brake Assembly
Brake Stud
Spring, Compression x .875” Long
Chain, #48 x 1 Pitch
Brake Solenoid, 115V
Brake Solenoid, 230-460V
Brake Solenoid, 575V
Spacer, .20 I.D. x .31 Long
Brake Mounting Plate Assembly
Brake Pressure Plate Assembly
Feather Key
Screw, #10-32 x 1/2” Serrated Flange
Cotter Pin, 1/8” x 1-3/4” Zinc Plate
Push on Fastener, 5/8” Int. Star
1
1
1
1
4
4
4
1
1
1
1
2
1
1
1
8
2
1
07-10179
10-10187
10-10190
10-10191
11-10192
11-10193
18-10194
19-48001
22-120
22-240
22-575
31-10186
75-10180
75-10184
80-9001
82-WX10-08T
86-CP04-112
87-P-062
KIT PART # FOR OPERATOR(S)
71-B120 115 Volt Models
71-B240 230-460 Volt Models
71-B575 575 Volt Models
K77-10201 HARDWARE KIT
ITEM PART # DESCRIPTION QTY
H1
H2
H3
H4
H5
H6
H7
H8
Curved Arm
Door Bracket
Header Bracket
Header Pivot Pin
Slider Assembly
Front Idler Assembly
Straight Arm Assembly
Track Spacer Assembly
1
1
1
1
1
1
1
2
10-10203
10-10204
10-10205
11-10130
75-10170
75-10174
75-10214
75-10259
Doors to 8’
Doors to 10’
Doors to 12’
Doors to 14’
Doors to 16’
Doors to 18’
Doors to 20’
Doors to 22’
Doors to 24’
10-5808
10-5810
10-5812
10-5814
10-5816
10-5818
10-5820
10-5824
10-5824
PART # Track, 11’ Length
Track, 13’ Length
Track, 15’ Length
Track, 17’ Length
Track, 19’ Length
Track, 21’ Length
Track, 23’ Length
Track, 27’-6” Length
Track, 27’-6” Length
19-5112
19-5112
19-5112
19-5114
19-5116
19-5118
19-5120
19-5124
19-5124
19-5810
19-5810
19-5812
19-5814
19-5816
19-5818
19-5820
19-5824
19-5824
DOOR TRACK AND DRIVE CHAIN KITS
#41 CHAIN (3/4 & 1 HP)
#48 CHAIN (1/3 & 1/2 HP)
DOOR TRACK DOOR DRIVE CHAIN
DOOR HEIGHT
K75-12870 STRAIGHT AND CURVED ARM ASSY
H1
H7
Curved Armbly
Straight Arm Assembly 1
1
10-10203
75-10214
DESCRIPTION
REPLACEMENT PART KITS - MODEL T

OPEN TIMER TO CLOSE
3 BUTTON STATION or 3 POSITION KEYSWITCH w/ SPRING RETURN TO CENTER AND STOP BUTTON
2 OR MORE KEY LOCKOUT
R1 R2 R3
1 2 3 4
Stop
Close
Open
Stop
Close
Open
1 2 3 4
Stop
Close
Open
2 BUTTON STATION or 3 POSITION KEYSWITCH w/ SPRING RETURN TO CENTER
STANDARD
1 2 4
Close
Open
ALL CONTROL WIRING TYPES
2 OR MORE
1 2 4
Close
Open
Close
Open
OPEN / CLOSE
37
RADIO CONTROL
1 BUTTON STATION or
ANY AUXILIARY DEVICE
RESIDENTIAL RADIO CONTROLS
SENSING DEVICE TO REVERSE OR STOP
EXTERNAL INTERLOCK
310
4545
Remove Jumper
When Interlock is Used
ONE 2 OR MORE
STANDARD
1 2 3 4
Stop
Close
Open
IMPORTANT NOTES:
1) The 3-Button Control Station provided must be connected for operation.
2) If a STOP button is not used, a jumper must be placed between termianls 3 and 4.
3) Auxiliary control equipment may be any normally open two wire device such as
pullswitch, single button, loop detector, card key or such device.
Keyswitch
Sensing Device
ALL CONTROL WIRING TYPES
B2 or T1
WIRING TYPES ONLY
ALL CONTROL WIRING TYPES
T1 WIRING - RADIO TO OPEN ONLY
*
*
EXTERNAL
TERMINAL BLOCK
ALL CONTROL WIRING TYPESALL CONTROL WIRING TYPES
ALL CONTROL WIRING TYPES
TIMER TO CLOSE w/ WARNING LIGHT
ALL CONTROL WIRING TYPEST1 CONTROL WIRING ONLY
11 12
Timer Defeat
Switch
13 14
Power Supply for
Warning Light
Auxiliary Terminal Block
Warning Light will activate 15 sec. before door closes.
ALL CONTROL WIRING TYPES
ATTENTION ELECTRICIAN:
USE 16 GAUGE OR HEAVIER WIRE
FOR ALL CONTROL CIRCUIT WIRING.
SEE NOTE #2SEE NOTE #2 SEE NOTES
#2 AND #3
CONTROL CONNECTION DIAGRAM
c2000, The Chamberlain Group, Inc.
All rights Reserved
01-10310K