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Chamberlain 3900PLD - page 1
Owner’s Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the door after installation. ■ The door WILL NOT CLOSE unless The Protector System ® and cable tension monitor are connected and properly aligned. ■ Periodic checks of the operator are required to ensure safe operation. ■ The ...
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Chamberlain 3900PLD - page 2
2 INTRODUCTION Safety Symbol Review and Signal Word Review 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 ca ...
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Chamberlain 3900PLD - page 3
Safety Reversing Sensor Safety Reversing Sensor T orsion Spring Motor unit W all-mounted Single Button Control Station Access Door Gap between floor and bottom of door must not exceed 1/4" (6 mm). Cable T ension Monitor Drum 3 Planning Survey your area to see if any of the conditions below apply to your installation. Additional materials may b ...
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Chamberlain 3900PLD - page 4
4 Preparing your Door Before you begin: • Disable locks. • Remove any ropes connected to door. • Complete the following test to make sure your door is balanced and is not sticking or binding: 1. Lift the door about halfway as shown. Release the door. If balanced, it should stay in place, supported entirely by its springs. 2. Raise and lower t ...
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Chamberlain 3900PLD - page 5
5 2-Conductor Bell Wire White & White/Red Safety Labels and Literature Mounting Bracket The Protector System ® (2) Safety Reversing Sensors (1 Sending Eye and 1 Receiving Eye) with 2-Conductor White & White/Black Bell Wire attached Safety Sensor Bracket (2) Operator Collar with Screws Cable T ension Monitor with 2-Conductor Green/White Bel ...
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Chamberlain 3900PLD - page 6
ASSEMBLY STEP 1 Attach the Collar to the Operator To avoid installation difficulties, do not run the door operator until instructed to do so. • Loosen the collar screws. • Attach collar to either the left or the right side of the operator. Ensure that the collar is seated all the way on motor shaft until stop is reached (Figure 1). • Position ...
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Chamberlain 3900PLD - page 7
7 INSTALLATION INSTALLATION STEP 1 Position the Operator NOTE: For additional mounting options see accessories page. 1. Close the door completely. 2. Slide the operator with collar over the end of the torsion bar. Ensure that the collar does not touch the bearing plate. Check to make sure the mounting bracket is located on a solid surface such as w ...
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Chamberlain 3900PLD - page 8
NOT IC E Overhand Knot Emergency Release Handle Overhand Knot Rope Motor Unit Emergency Release Cable To prevent possible SERIOUS INJURY or DEATH from a falling door: • If possible, use emergency release handle to disengage door ONLY when door is CLOSED. Weak or broken springs or unbalanced door could result in an open door falling rapidly and/or ...
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Chamberlain 3900PLD - page 9
WHT/GRN T o insert or release wire, push in tab with screwdriver tip Cable T ension Monitor 7/16" (1 1mm) Strip wire 7/16" (1 1mm) WHT/GRN Cable T ension Monitor Cable T ension Monitor Roller Cable 2"-6" (5 cm- 15 cm) Drum T orsion Bar Operator 1/8"-1/4" (3 mm-6 mm) With Door Closed Preferred Orientation Figure 1 #8 He ...
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Chamberlain 3900PLD - page 10
INSTALLATION STEP 5 Install the Single Button Control Station To prevent possible SERIOUS INJURY or DEATH from electrocution: • Be sure power is not connected BEFORE installing door control. • Connect ONLY to 24 VOLT low voltage wires. To prevent possible SERIOUS INJURY or DEATH from a closing door: • Install door control within sight of door ...
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Chamberlain 3900PLD - page 11
11 INSTALLATION STEP 6 Install the Light (Not Provided) The remote light (operator light) is designed to plug directly into a standard 120V outlet. 1. Install the hinge and latch clips. Clips slide in between the metal plate and the plastic housing on each side of the light base (Figure 1). 2. Select an appropriate location on the ceiling to mount ...
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Chamberlain 3900PLD - page 12
12 INSTALLATION STEP 7 Electrical Requirements To avoid installation difficulties, do not run the operator at this time. To reduce the risk of electric shock, your operator has a grounding type plug with a third grounding pin. This plug will only fit into a grounding type outlet. If the plug doesn’t fit into the outlet you have, contact a qualifi ...
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Chamberlain 3900PLD - page 13
13 INSTALLATION STEP 8 Mount the Standby Power Unit (SPU) (Not Provided) If the optional 475LM Standby Power Unit is part of this installation it should be installed at this time. • The SPU can be mounted to either the ceiling or a wall within 3' (.9 m) of the motor unit. • Position the SPU as desired to a structural support (ceiling joist ...
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Chamberlain 3900PLD - page 14
14 Invisib le Light Beam Protection Area Safety Re v ersing Sensor 6" (15 cm) max. abov e floor Safety Re v ersing Sensor 6" (15 cm) max. abov e floor Facing the door from inside the garage INSTALLATION STEP 9 Install The Protector System ® The safety reversing sensor must be connected and aligned correctly before the door operator will ...
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Chamberlain 3900PLD - page 15
15 DOOR TRA CK MOUNT (RIGHT SIDE) Indicator Light Lens Lip Sensor Brack et Door T rack FLOOR MOUNT (RIGHT SIDE) W ALL MOUNT (RIGHT SIDE) Indicator Light Sensor Brack et Lens Extension Brack et (See Accessories) Inside W all (Provided with Extension Brack et) (Provided with Extension Brack et) Figure 1 Figure 2 Figure 3 Figure 4 W ALL MOUNT (RIGHT S ...
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Chamberlain 3900PLD - page 16
16 Invisible Light Beam Protection Area S ensor Sensor Safety Reversing Sensor Bell Wire Bell Wire Motor unit Safety Reversing Sensor Quick-Connect Terminals WHT/BLK WHT WHT/RED WHT Sensor Connections T o CableT ension Monitor T o Door Control Connect Wire to Quick-Connect T e rminals T o inser t or release wires, push in tab with screwdriver tip . ...
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Chamberlain 3900PLD - page 17
17 To prevent damage to vehicles, be sure fully open door provides adequate clearance. BLACK PURPLE Push and hold until the door is at desired UP position Figure 2 Figure 3 Push either button to stop door at desired DOWN position BLACK PURPLE Figure 4 Without a properly installed safety reversal system, persons (particularly small children) could b ...
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Chamberlain 3900PLD - page 18
18 Purple Button LED Black Button BLACK PURPLE Push Purple button twice to enter unit into Force Adjustment Mode Figure 2 Figure 1 Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing door. • NEVER learn forces or limits when door is binding or sticking. Repai ...
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Chamberlain 3900PLD - page 19
19 ADJUSTMENT STEP 3 Test the Safety Reversal System TEST • With the door fully open, place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on the floor, centered under the door. • Operate the door in the down direction. The door must reverse on striking the obstruction. Upon successful safety reversal test proceed to Adjustment Step 4 . ADJU ...
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Chamberlain 3900PLD - page 20
20 ADJUSTMENT STEP 5 Test Cable Tension Monitor If your cable tension monitor has been activated the Indicator Light will blink 9 times. See (Figure 1) page 16. ADJUSTMENT STEP 6 To Open the Door Manually The door should be fully closed if possible. Pull down on the emergency release handle until a click noise is heard from the unit and lift the do ...
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Chamberlain 3900PLD - page 21
21 OPERATION Using Your Door Operator Press and hold the push button on the Single Button Control Station until the door starts to move. When the operator is activated (with the safety reversing sensor correctly installed and aligned) 1. If open, the door will close. If closed, it will open. 2. If closing, the door will reverse. 3. If opening, the ...
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Chamberlain 3900PLD - page 22
22 CARE OF YOUR OPERATOR MAINTENANCE SCHEDULE Once a Month • Manually operate door. If it is unbalanced or binding, call a trained door systems technician. • Check to be sure door opens & closes fully. Adjust limits and/or force if necessary (see Adjustment Steps 1 and 2). • Repeat the safety reverse test. Make any necessary adjustments ( ...
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Chamberlain 3900PLD - page 23
23 HAVING A PROBLEM? (TROUBLESHOOTING) 1. The operator doesn’t operate from either the Door Control or the remote control: • Does the operator have electric power? Plug a lamp into the outlet. If it doesn’t light, check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.) • Is there a build-up of ice or snow ...
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Chamberlain 3900PLD - page 24
24 Having a Problem? (Continued) 12. The operator won't operate due to power failure: • Use the emergency release handle to disconnect the door. The door can be opened and closed manually. When power is restored, pull manual release a second time. • If a Standby Power Unit is connected, the operator should be able to operate up to 20 times ...
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Chamberlain 3900PLD - page 25
25 Your garage door operator is programmed with self- diagnostic capabilities. The “Learn” button/diagnostic LED will flash a number of times then pause signifying it has found a potential issue. Consult Diagnostic Chart below. Diagnostic Chart Symptom: One or both of the Indicator lights on the safety reversing sensors do not glow steady. • ...
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Chamberlain 3900PLD - page 26
26 *3-Button Remote (315 MHz) If provided with your door operator, the large button is factory programmed to operate it. Additional buttons on any Security ✚ ® 3-Button remote can be programmed to operate other Security ✚ ® door operators. To Erase All Codes From Motor Unit Memory To deactivate any unwanted remote, first erase all codes: Pres ...
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Chamberlain 3900PLD - page 27
27 To change an existing, known PIN If the existing PIN is known, it may be changed by one person without using a ladder. 1. Press the four buttons for the present PIN, then press and hold the # button. The operator light will blink twice. Release the # button. 2. Press the new 4-digit PIN you have chosen, then press Enter. The motor unit lights wi ...
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Chamberlain 3900PLD - page 28
28 1. Press the “learn button” on light until LED comes ON. 2. Activate the door using the Single Button Control Station (or hand-held remote control or keyless entry, if programmed). 3. It has learned the code and the light turns on. Programming Remote Light (Not Provided) The garage door operator remote light will need to be programmed to ope ...
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Chamberlain 3900PLD - page 29
29 NOTICE 8 1 2 3 4 5 6 7 Installation Parts REPAIR PARTS KEY PART NO. NO. DESCRIPTION 1 APBS 1 Single button control station 2 41A4582 Emergency release rope & handle assembly 3 41B4494-1 2-Conductor bell wire - white & white/red 4 41A6104 Cable tension monitor 5 41C0902 Mounting bracket 6 41A5034 Safety sensor kit (receiving and sending e ...
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Chamberlain 3900PLD - page 30
30 ACCESSORIES 41A5281 377LM Extension Brackets: (Optional) For safety reversing sensor installation onto the wall or floor. Keyless Entry with Security ✚ ® : Enables end user to operate door operator from outside by entering a password on a specially designed keyboard. Also can add a temporary password for visitors or service persons. This temp ...
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Chamberlain 3900PLD - page 31
31 NOTES ...
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Chamberlain 3900PLD - page 32
LIFTMASTER ® SERVICE IS ON CALL OUR LARGE SERVICE ORGANIZATION SPANS AMERICA INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE. SIMPLY DIAL OUR TOLL FREE NUMBER: 1-800-528-2806 www.liftmaster.com For professional installation, parts and service, contact your local LIFTMASTER/CHAMBERLAIN dealer. Look for him in the Yellow Pages, or ...
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