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Chamberlain LIFTMASTER SL920 - page 1
1 OWNER'S MANUAL MODEL SL920 COMMERCIAL SLIDE GA TE OPERA T OR 2 YEAR WARRANTY Serial # _____________________ (located on electrical box cover) Installation Date:_______________ SL920 GATE OPERATORS ARE FOR USE ON VEHICULAR PASSAGES ONLY AND NOT INTENDED FOR USE ON PEDESTRIAN PASSAGE GATES. ...
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Chamberlain LIFTMASTER SL920 - page 2
2 General Information.................................................................................................................3, 4 Features....................................................................................................................... ............5 Parts Identification................................................. ...
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Chamberlain LIFTMASTER SL920 - page 3
3 General Information BASE PLATE HOLE PATTERN OVERALL DIMENSIONS: Height: 21" Length: 12" Width: 17" SHIPPING WEIGHT : 125 lbs. z Options: Steel Mounting Stand: 23 lbs. POWER REQUIREMENT : Dedicated 1 15 V olt AC (+/- 10V), 5 AMP Power Circuit APPLICA TIO ...
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Chamberlain LIFTMASTER SL920 - page 4
4 CIRCUIT BOARD: The SL920 uses the Full Systems Capability circuit board, a powerful control system. This circuit board operates on 12 ~ 18 Volts and can deliver power to the motor through high power switching. The limit switch input terminals require the use of normally open type limit switches. These switches are used to accu ...
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Chamberlain LIFTMASTER SL920 - page 5
5 Features OPERA TION The SL920 Full Systems Capability can operate in a AUTO CLOSE TIMER (TIMER ON) or a PUSH-TO-OPEN/PUSH-TO-CLOSE (TIMER OFF) mode of operation. In the AUTO CLOSE TIMER mode of operation the operator is given a command to open the gate and hold it open until the input is released and until the auto close timer ...
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Chamberlain LIFTMASTER SL920 - page 6
6 Part s Identification ...
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Chamberlain LIFTMASTER SL920 - page 7
7 Parts Identification continued... K72-30359 SERVICE KIT K74-40045 SERVICE KIT LIMIT/DRIVE SHAFT ASSEMBLY PCB GUARD AND STANDOFF ITEM DESCRIPTION QTY DESCRIPTION QTY PART # DESCRIPTION QTY LIMIT/DRIVE SHAFT 1 GUARD, PCB 1 1 13-40362 LIMIT NUT 2 BEARING 2 JUMPER, PCB 3 2 20-40381 MOTOR, 24VDC, 1/5 HP 1 LIMIT NUT 2 HEX STANDOFF, 6-32 x 1", M/F ...
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Chamberlain LIFTMASTER SL920 - page 8
8 Remove the gate operator from it's package and make sure that all parts are included. Refer to General Information and Parts Identification. If any parts appear to be missing, contact dealer. Temporarily plug the operator into 115 Volt outlet or extension cord. Before beginning installation, test the gate operator by running the ...
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Chamberlain LIFTMASTER SL920 - page 9
9 Installation continued... Disconnect Power from the gate operator! The tail end of the gate should extend approximately 24" beyond the edge of the driveway. If this is not the case, an extension tail will need to be added to the gate. This will give room for the gate operator. Make the extension tail 24" X 24" as shown. If ...
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Chamberlain LIFTMASTER SL920 - page 10
10 Installation Continued... If the steel mounting stand was used, simply bolt the gate operator to the stand. If the operator will be mounted to a concrete surface or pad, place the shortest edge of the operator 4" away from the edge of the driveway. Place the longer edge of the gate operator 2-1/2" away from the gate. When the g ...
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Chamberlain LIFTMASTER SL920 - page 11
11 Installation Continued... Attach the gate bracket to the gate as shown using the round or square u-bolts for round or square gate frames respectively. Attach the chain to the gate brackets using the chain bolt and master link as shown. If necessary, the chain may be easily short- ened using a chain breaker. Adjust the height of the gate brac ...
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Chamberlain LIFTMASTER SL920 - page 12
12 Alternate Inst allations The rear mount installation is an excellent way to conceal the chain or opera- tor. The operator is placed in the extreme rear of the gate as shown and the chain never goes across the driveway. The chain only goes from the gate operator to a post or wall beside the driveway. Place shortest edge of the operator 3" ...
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Chamberlain LIFTMASTER SL920 - page 13
13 Electrical Make sure that power is OFF before making any electrical connections! Be sure that all wiring is employed as required by local codes. The operator is provided with two knockout holes on each side. Run 1/2" liquid tight flexible conduit through one of the four knockout holes and into the handy box where the receptacle ...
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Chamberlain LIFTMASTER SL920 - page 14
14 Electrical Continued... If the gate operator is already factory equipped with battery run, only the Right/Left Side switch and the Mode switch need to be set. The Right/Left switch simply needs to be set in the same position as the Right/Left switch on the main control board. (See page 17 for correctly setting the Right/Left switch on the co ...
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Chamberlain LIFTMASTER SL920 - page 15
15 GRY GRY 1 2 3 4 BLK RED S AFETY N.O . N.O . N.O . N.C. N.O . N.O . OPEN PULSE OPEN N.C.STOP CL OSE N.O .STOP 412 HM RADIO RECEIVER ) ) ) ) ) ) REMOVE JUMPER IF USING N .C . ST OP PUSH BUTT ONS, KEY SWIT CHES, ETC. 24 SWIT CH1 RED LEFT/RIGHT SIDE OPERA TION L R OFFON SWIT CH2 ORG COM GRN 1 2 3 4 S AFETY OPEN OPEN ADJUST OPEN ADJUST TIMER ADJUST T ...
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Chamberlain LIFTMASTER SL920 - page 16
16 Wiring Diagrams, Button Controls z One button, two button and three button controls may be connected individually or together as shown below. Most button controls have a common "buss bar" which connects the common terminals of all buttons together so that only one common wire needs to be run back to the gate operator control board. If ...
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Chamberlain LIFTMASTER SL920 - page 17
17 Fine T uning The gate operator is designed to work differently while opening then while closing to optimize safety, so the direction of the operator will need to be set. Setting the operator direction is done by flipping the right/ left side switch located at the top of the circuit board. For a left side installation flip the switch to the l ...
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Chamberlain LIFTMASTER SL920 - page 18
18 z Connect 115 Volts AC to each SL920 gate operator. Connect the four Master/Second wires from the master circuit board to the Second circuit board as shown below. Any operator can be used as either a master or a Second. Accessories can be connected to the master or second operator. z Switch the Auto Close Timer switch to the OFF position on the ...
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Chamberlain LIFTMASTER SL920 - page 19
19 Wiring Diagram SL920 WITH FULL SYSTEMS CAPABILITY ...
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Chamberlain LIFTMASTER SL920 - page 20
20 Wiring Diagrams SL920 WITH BATTERY BACK-UP BREAKER 15 AMP ...
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Chamberlain LIFTMASTER SL920 - page 21
21 Safety Edge and W arning Placard Inst allation See reversing edge sensor instructions for the exact placement of the reversing edge contact sensors. One or more safety edge contact sensors shall be located at the leading edge, trailing edge, and post mounted both inside and outside of a vehicular horizontal slide gate. When the contact s ...
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Chamberlain LIFTMASTER SL920 - page 22
22 Options If it is desired that the driveway illuminate when the gate is activated, a light delay timer may be installed. The light delay timer will switch power on to the light for two minutes, then shut power back off. The timer relay is capable of switching up to 10 Amps which will handle most flood or spot lights available. A general hook- ...
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Chamberlain LIFTMASTER SL920 - page 23
23 For rear mount installation that are limited on space for the gate to slide back into, the space saver version is an excellent alternative. There may be a property wall, parking stall or other obstacle that reduces the amount of space available, making it difficult to mount the gate operator and still have room for the gate to slide. The spa ...
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Chamberlain LIFTMASTER SL920 - page 24
24 Gate Hardware Locator Options Continued... ...
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Chamberlain LIFTMASTER SL920 - page 25
25 The SL920 is designed to be MAINTENANCE FREE. However, for optimum performance and safety, the following maintenance procedures should be taken. IMPORT ANT SAFETY INSTRUCTIONS WARNING - To reduce the risk of injury or death: 1) READ AND FOLLOW ALL INSTRUCTIONS 2) Never let children operate or play with gate controls. Keep the remote control away ...
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Chamberlain LIFTMASTER SL920 - page 26
26 T roubleshooting EXPLANATION OF VISUAL FEEDBACK LEDs The SL920 Full Systems Capability circuit board has been equipped with Visual Feedback LEDs to simplify installation and troubleshooting. These are small lights which are located directly beside the input terminals. These LEDs give visual information to the installer or ser ...
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Chamberlain LIFTMASTER SL920 - page 27
27 Troubleshooting GATE WILL NOT OPEN OR CLOSE Test the operator to find out whether the open input devices are functioning by following these steps. n n n n n If a remote control is being used to open the gate, try another remote control or try using a push button if there is one installed. o o o o o If a push button is being u ...
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Chamberlain LIFTMASTER SL920 - page 28
28 NOTE: z All open and safety devices must have normally open contacts. z For Devices requiring power, refer to the specific diagram for that particular device. Notes Other Commonly Used Open and Safety Devices Be sure to read this entire manual before attempting to perform any type of installation or service to the gate opener. Once the i ...
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Chamberlain LIFTMASTER SL920 - page 29
29 Notes Be sure to read this entire manual before attempting to perform any type of installation or service to the gate opener. Once the installation has been completed, this installation and service manual becomes the property of the home owner or end user and should be given to the new owner at that time. For a personal copy of this ...
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Chamberlain LIFTMASTER SL920 - page 30
30 Notes ...
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Chamberlain LIFTMASTER SL920 - page 31
31 Notes ...
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Chamberlain LIFTMASTER SL920 - page 32
32 W ARNING To reduce the risk of injury use this operator only with a sliding gate that is no larger than 25 ft. in length and no heavier than 500 lbs. WHEN ORDERING REP AIR P ARTS PLEASE SUPPL Y THE FOLLOWING INFORMA TION: P ART NUMBER DESCRIPTION MODEL NUMBER ADDRESS ORDER TO: THE CHAMBERLAIN GROUP , INC. TECHNICAL SUPPORT CENTER 6020 South Coun ...
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