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Chamberlain 2500B - page 1
Owner’s Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation. ■ The door WILL NOT CLOSE unless The Protector System ® is connected and properly aligned. ■ Periodic checks of the opener are required to ensure safe operation. ■ The model number label is ...
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Chamberlain 2500B - page 2
2 Introduction 2-5 Safety symbol review and signal word review ............2 Preparing your garage door ........................................3 T ools ............................................................................3 Planning .....................................................................4 Carton inventory ...................... ...
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Chamberlain 2500B - page 3
3 Preparing your garage door Before you begin: • Disable locks. • Remove any ropes connected to garage door . • Complete the following test to make sure your garage 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 spring ...
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Chamberlain 2500B - page 4
Safety Reversing Sensor Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 20 for details. Header Wall Safety Reversing Sensor Support bracket & fastening hardware is required. See page 13. FINISHED CEILING Extension Spring OR Torsion Spring Motor un ...
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Chamberlain 2500B - page 5
5 Straight Door Arm Section Curved Door Arm Section Header Bracket U P C E IL IN G M O U N T O N L Y 2-Conductor Bell Wire White & White/Red Safety Labels and Literature Remote Control Transmitter Visor Clip Door Bracket SECURITY ✚ 3-Button Remote Control (2) Safety Reversing Sensors (1 Sending Eye and 1 Receiving Eye) with 2-Conductor White ...
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Chamberlain 2500B - page 6
ASSEMBL Y STEP 1 Attach the Rail to the Motor Unit T o avoid installation difficulties, do not run the garage door opener until instructed to do so. • Remove the two washered bolts mounted in top of motor unit. • Align rail and styrofoam over sprocket. Cut tape from rail, belt and styrofoam. • REMOVE STYROFOAM. • Insert both washered bolts ...
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Chamberlain 2500B - page 7
ASSEMBL Y STEP 3 Attach the Belt Cap Retainer • Position the belt cap retainer over the opener sprocket so the two holes in cap align with the two holes in mounting plate. Attach with #8x3/8" hex screws provided. Y ou have now finished assembling your garage door opener . Please read the following warnings before proceeding to the installati ...
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Chamberlain 2500B - page 8
8 INST ALLA TION STEP 1 Determine the Header Bracket Location Installation procedures vary according to garage door types. Follow the instructions which apply to your door . SECTIONAL DOOR AND ONE-PIECE DOOR WITH TRACK 1. Close the door and mark the inside vertical centerline of the garage door . 2. Extend the line onto the header wall above the do ...
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Chamberlain 2500B - page 9
9 ONE-PIECE DOOR WITHOUT TRACK 1. Close the door and mark the inside vertical centerline of your garage door . Extend the line onto the header wall above door , as shown. If headroom clearance is minimal, you can install the header bracket on the ceiling. See page 10. If you need to install the header bracket on a 2x4 (on wall or ceiling), use lag ...
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Chamberlain 2500B - page 10
10 INST ALLA TION STEP 2 Install the Header Bracket Y ou can attach the header bracket either to the wall above the garage door , or to the ceiling. Follow the instructions which will work best for your particular requirements. Do not install the header bracket over drywall. If installing into masonry , use concrete anchors (not provided). W ALL HE ...
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Chamberlain 2500B - page 11
Header Bracket Belt Pulley Bracket Opener Carton or Temporary Support Header Wall Garage Door Clevis Pin 5/16"x2-3/4" Ring Fastener Torsion Spring Rail Clevis Pin 5/16"x2-3/4" Ring Fastener Header Bracket Belt Pulley Bracket Foam Packaging Rail 11 HARDW ARE SHOWN ACTUAL SIZE INST ALLA TION STEP 3 Attach the Rail to the Header Br ...
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Chamberlain 2500B - page 12
12 ONE-PIECE DOOR WITHOUT TRACK A 2x4 on its side is convenient for setting an ideal door-to-rail distance. • Remove foam packaging. • Raise the opener onto a stepladder . Y ou will need help at this point if the ladder is not tall enough. • Open the door all the way and place a 2x4 on its side on the top section of the door beneath the rail. ...
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Chamberlain 2500B - page 13
13 INST ALLA TION STEP 5 Hang the Opener Three representative installations are shown. Y ours may be different. Hanging brackets should be angled, Figure 1, to provide rigid support. On finished ceilings, Figure 2, attach a sturdy metal bracket to structural supports before installing the opener . This bracket and fastening hardware are not provide ...
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Chamberlain 2500B - page 14
T o prevent possible SERIOUS INJURY or DEA TH from electrocution: • Be sure power is not connected BEFORE installing door control. • Connect ONL Y to 24 VOL T low voltage wires. T o prevent possible SERIOUS INJURY or DEA TH from a closing garage door: • Install door control within sight of garage door , out of reach of children at a minimum h ...
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Chamberlain 2500B - page 15
15 INST ALLA TION STEP 7 Install the Lights and Lens Press the release tabs on both sides of lens. Gently rotate lens back and downward until the lens hinge is in the fully open position. Do not remove the lens. • Install up to a 100 watt maximum light bulb in each socket. The lights will turn ON and remain lit for approximately 4-1/2 minutes whe ...
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Chamberlain 2500B - page 16
INST ALLA TION STEP 9 Electrical Requirements T o avoid installation difficulties, do not run the opener at this time. T o reduce the risk of electric shock, your garage door opener 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, conta ...
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Chamberlain 2500B - page 17
17 Invisible Light Beam Protection Area Sensor Beam 6" (15 cm) max. above floor Sensor Beam 6" (15 cm) max. above floor Facing the door from inside the garage INST ALLA TION STEP 10 Install The Protector System ® The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direct ...
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Chamberlain 2500B - page 18
18 DOOR TRACK MOUNT (RIGHT SIDE) Indicator Light Lens Lip Sensor Bracket Door Track FLOOR MOUNT (RIGHT SIDE) WALL MOUNT (RIGHT SIDE) Indicator Light Sensor Bracket Lens Extension Bracket (See Accessories) Inside G arage W all (Provided with Extension Bracket) (Provided with Extension Bracket) Figure 1 Figure 2 Figure 3 Figure 4 WALL MOUNT (RIGHT SI ...
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Chamberlain 2500B - page 19
19 Invisible Light Beam Protection Area Sensor Sensor Bell Wire Bell Wire Finished Ceiling Quick-Connect Terminals Strip wire 7/16" 7/16" Sensor Connections Connect Wire to Quick-Connect Terminals White/black wire White wire Red Grey White Carriage Bolt 1/4"-20x1/2" Lens Wing Nut Figure 4 Figure 5 MOUNTING AND WIRING THE SAFETY ...
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Chamberlain 2500B - page 20
20 INST ALLA TION STEP 11 Fasten the Door Bracket Follow instructions which apply to your door type as illustrated below or on the following page. A horizontal reinforcement brace should be long enough to be secured to two or three vertical supports. A vertical reinforcement brace should cover the height of the top panel. Figure 1 shows one piece o ...
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Chamberlain 2500B - page 21
21 ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • Center the door bracket on the top of the door , in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes. • Metal Doors: Drill 3/16" pilot holes ...
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Chamberlain 2500B - page 22
INST ALLA TION STEP 12 Connect Door Arm to T rolley Follow instructions which apply to your door type as illustrated below and on the following page. SECTIONAL DOORS ONL Y Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley . Slide the outer trolley back (away from the door ...
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Chamberlain 2500B - page 23
ALL ONE-PIECE DOORS 1. Assemble the Door Arm: • Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole overlap). • Make sure the garage door is fully closed. Connect the straight door arm section to the door bracket with the 5/16"x1-1/4" clevis pin. • Secure with a ring fastener ...
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Chamberlain 2500B - page 24
4. Open and close the door with the remote control or door control 2 or 3 times. • If the door does not stop in the desired UP (open) position or reverses before the door stops at the DOWN (close) position, proceed to Adjustment Step 2 Setting the Force. • If the door stops in both the desired UP (open) and DOWN (close) positions, proceed to Ad ...
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Chamberlain 2500B - page 25
ADJUSTMENT STEP 2 Setting the Force The force setting button is located on the back panel of the motor unit. The force setting regulates the amount of power required to open and close the door . 1. Locate the orange button on the back panel of unit (Figure 1) . 2. Push the orange button twice to enter unit into Force Adjustment Mode (Figure 2). The ...
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Chamberlain 2500B - page 26
ADJUSTMENT STEP 3 T est the Safety Reversal System TEST • With the door fully open, place a 1-1/2" board (or a 2x4 laid flat) on the floor , centered under the garage 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 . ADJUST ...
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Chamberlain 2500B - page 27
OPERA TION 27 Using Y our Garage Door Opener Y our Security ✚ ® opener and hand-held remote control have been factory programmed to a matching code which changes with each use, randomly accessing over 100 billion new codes. Y our opener will operate with several Security ✚ ® remote controls utilizing up to 12 functions, and one Security ✚ ? ...
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Chamberlain 2500B - page 28
28 Using the W all-Mounted Door Control THE MUL TI-FUNCTION DOOR CONTROL Press the push bar to open or close the door . Press again to reverse the door during the closing cycle or to stop the door while it's opening. Light feature Press the Light button to turn the opener light on or off. It will not control the opener lights when the door is ...
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Chamberlain 2500B - page 29
29 CARE OF YOUR OPENER 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 pages 24 and 25) • Repeat the safety reverse test. Make any necessary adjustments. (See Adj ...
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Chamberlain 2500B - page 30
30 Having a Problem? (Continued) 6. The garage door opens and closes by itself: • Be sure that all remote control push buttons are off. • Remove the bell wire from the door control terminals and operate from the remote only . If this solves the problem, the door control is faulty (replace), or there is an intermittent short on the wire between ...
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Chamberlain 2500B - page 31
*3-Button Remotes If provided with your garage door opener , the large button is factory programmed to operate it. Additional buttons on any Security ✚ ® 3-Button remote or mini-remote can be programmed to operate other Security ✚ ® garage door openers. T o Erase All Codes From Motor Unit Memory T o deactivate any unwanted remote, first erase ...
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Chamberlain 2500B - page 32
1. Enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold ENTER. 2. While holding the ENTER button, press and hold the LIGHT button on the Multi-Function Door Control. 3. Continue holding the ENTER and LIGHT buttons while you press the push bar on the Multi-Function Door Control (all three buttons ...
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Chamberlain 2500B - page 33
7 10 11 6 5 N O TIC E U P C E I L I N G M O U N T O N L Y 8 1 4 2 3 9 12 LO CK L IG H T 2 1 5 6 3 7 8 4 Rail Assembly Parts Installation Parts 33 KEY P ART NO. NO. DESCRIPTION 1 4A1008 Master link kit 2 41A5424 Belt pulley bracket 3 41B3869-1 Complete trolley assembly 4 109B33 T rolley clip 5 183B99 One-piece T -rail 6 41A5434-1 1 Full belt assembl ...
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Chamberlain 2500B - page 34
Motor Unit Assembly Parts 34 2 3 4 5 6 7 8 9 10 11 12 1 KEY P ART NO. NO. DESCRIPTION 1 41C76 Belt cap and sprocket 2 41B4245-1 Line cord 3 41B4375-3 T erminal block w/screws 4 41C5317 Wire harness (logic) 41C5839 High voltage wire harness 41C5806 DC motor wire harness 41C5418 Light socket wire harness 5 41D475-1 Motor 80kg/100kg KEY P ART NO. NO. ...
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Chamberlain 2500B - page 35
35 LOCK LIGHT C LO SE D O P E N ACCESSORIES 974LM 970LM 995LM 2778BD 41A5281 1702LM Outside Quick Release: Required for a garage with NO access door . 8 Foot Complete Rail: T o allow an 8 foot door to open fully . Remote Light Control: Enables homeowner to turn on a lamp, television or other appliance from their car with their garage door opener re ...
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Chamberlain 2500B - page 36
© 2003, The Chamberlain Group, Inc. 1 14A2796 All Rights Reserved Printed in Mexico LIFTMASTER SER VICE IS ON CALL OUR LARGE SERVICE ORGANIZA TION SP ANS AMERICA INST ALLA TION AND SERVICE INFORMA TION IS AS NEAR AS YOUR TELEPHONE SEVEN DA YS A WEEK. SIMPL Y DIAL OUR TOLL FREE NUMBER: 1-800-528-2817 HOURS: (Central Std. Time) 6:00 A.M. TO 7:00 P . ...
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