The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com 12 VOLT DC SINGLE SOLAR RESIDENTIAL GATE OPERATOR Models LA412 and LA412-S For Residential Use Only Owner’s Manual 2 YEAR WARRANTY ■ Please read this manual and the enclosed safety materials carefully! ■ Periodic checks of the operator by a qualified technician are required to ensure safe operation. ■ The model number label is located inside the control box of your operator.
TABLE OF CONTENTS 2-7 INTRODUCTION 2 3 4-5 6 6 7 7 27-32 SOLAR PANEL INSTALLATION Safety Symbol and Signal Word Review Operator Specifications Safety Installation Information Carton Inventory Hardware Inventory Additional Items for Purchase Tools Needed 8-12 PREPARATION AND OVERVIEW 8 9 10 11 Single Gate Overview Dual Gate Overview Check Your Gate Mounting Options 27 28 29 30 30 30 30 31 32 33-36 PROGRAMMING 33-34 35 36 36 36 12-21 INSTALLATION 12-18 19-20 Attach the Operator to the Gate Mount t
Operator Dimensions and Specifications Main Supply Accessory Power 12Vdc Battery run. Operational between 11.5Vdc and 14.5Vdc. 12V nominal Class II battery voltage source is limited to: • Solar or AC Cable up to 50' - 500 mA • AC Cable 50' up to 250' - 250mA • AC Cable 250' up to 1000' - 100mA NOTE: Increased accessory power drawn from the operator will shorten the battery life. Battery Charger Supply (Optional) 14.5Vac nominal, 30 VA max. Maximum Gate Length and Weight 16 ft. at 550 lbs.
SAFETY INSTALLATION INFORMATION 1. READ and FOLLOW all instructions. 2. The gate operator is intended for use with Class I vehicular swing gates. Class I denotes a vehicular gate operator (or system) intended for use in a home of one to four single family dwellings, or a garage or parking area associated therewith. Install the gate operator only when the operator is appropriate for the construction and the usage class of the gate. 3.
13. Each gate operator is provided with two safety warning placards. The placards are to be installed on the front and back of the gate where they are plainly visible. The placards may be mounted using cable ties through the four holes provided on each placard. All warning signs and placards must be installed where visible in the area of the gate. To prevent SERIOUS INJURY or DEATH from a moving gate: • Install warning signs on the front and back of the gate in PLAIN VIEW.
Carton Inventory This operator comes with the hardware to install on a gate that pulls-to-open. If your application requires the gate to be pushed open, accessory kit 50-19503 is required.
Additional Items For Purchase The following items are REQUIRED to complete the installation: ALL MODELS: LA412-S ONLY: SAFETY SENSORS The Model 50-220 safety sensors are intended for installation with the operators covered in this manual. To order call 1-800-528-2806 or visit www.liftmaster.com. CONDUIT UL Listed outdoor electrical conduit with 3/4" diameter to hold the extension cable between the junction box and the control box. HARDWARE • 5/16" mounting hardware for gate bracket.
OVERVIEW OF TYPICAL INSTALLATION To prevent SERIOUS INJURY or DEATH; one or more non-contact sensors shall be located where the risk of entrapment or obstruction exists. LEFT-HAND GATE rty pe Pro Warning Sign de tsiAntenna u O Control Box with Batteries Hinge Post Bracket Solar Panel (Facing South) Operator PVC Conduit (not provided) to protect the power cable for solar and low voltage wire from lawn mowers and string trimmers.
Dual Gate Typical Installation Junction Box erty ide s Out p Pro Extension Cable Warning Sign Safety Sensors Gate 2 Hinge Solar Panel (Facing South) Antenna f n oavel o i t ec Tr Dir ate G Post Bracket Gate Bracket Gate 1 Operator Cable Control Box with Batteries PVC Conduit (not provided) to protect the power cable for solar and low voltage wire from lawn mowers and string trimmers. of el n v o i ect Tra r i D ate G ty er rop eP id Ins Safety Sensors 12 gauge wire 8 ft. (2.
Check Your Gate Gate and gate post MUST be plumb. Gate MUST be level. Remove ANY/ALL wheels from the bottom of gate. Gate MUST NOT hit or drag across ground. Gate MUST swing freely and be supported entirely by its hinges.
Mounting Options Mounting locations vary depending on the type and style of your gate. NOTES: • The top of the operator must be mounted at least 10 inches above the ground. Environmental conditions should be considered at this time. • The operator is not recommended for plastic or vinyl gates. Contact the gate’s manufacturer for recommendations and options.
INSTALLATION 1 2 MANUAL RELEASE Insert the key into the lock and turn it 180° counterclockwise. Turn the release lever 180° counterclockwise. The operator is now in manual mode. Key Release Lever DETERMINE THE POSITION OF THE EXTENSION BRACKET The extension bracket can be assembled to work on a Left-Hand or a Right-Hand gate. Review the gate types below and select the type of installation required. NOTE: If the extension bracket is not assembled correctly damage to the operator may result.
3 MEASURING AND MARKING FOR THE GATE BRACKET Before proceeding, begin with the gate in the fully closed position. There are two methods for determining the proper location of the post brackets: • Paper template (Located on the back page of this manual. Must be cut out.) • Tape measure. Either method will work depending on preference. NOTE: Be sure gate is in the closed position before proceeding. Template Method Place the template (provided on the back page) under the gate hinge point.
4 POSITION THE EXTENSION BRACKET TO POST BRACKET Assemble the post bracket by placing the extension bracket on top of post bracket. Insert the bolt through the brackets and fasten them using the washer, lock washer and nut. DO NOT TIGHTEN AT THIS TIME.
6 POSITION GATE OPERATOR ON GATE The post bracket assembly can be mounted several places on the gate post. Refer to page 11 for mounting options. Place the operator arm against gate post at the desired vertical position and temporarily secure post bracket with a clamp. The gate operator (arm) must be level. Open the gate to desired open position (no greater than 100°) and hold operator against gate. Mark mounting holes on gate for reference. Temporarily secure the gate bracket using a clamp.
8 TEST GATE TRAVEL Manually open and close the gate. Ensure that the operator does not bind against the pull-to-open bracket. Ensure that the piston does not bottom out. 1/2" (1.3 cm) Do not allow piston to fully extend or fully retract. 1/2" (1.3 cm) NOTE: If gate does not open and close completely adjust the position of the gate bracket and mark new mounting holes.
9 SECURE POST BRACKET TO GATE POST Mark holes for the post bracket. Remove the clamp and the operator, and set both aside. Next, drill adequate holes in the gate post. Welder (Optional) Secure the post bracket to the gate post using hardware. The gate operator (arm) must be level. Flat Washers Hex Nuts Lock Washers Carriage Bolts 10 SECURE GATE BRACKET TO GATE Drill holes in gate (or reinforcement, if necessary) that are large enough for the gate bracket mounting hardware.
11 WARNING SIGN PLACEMENT Warning placards MUST be installed on both sides of the gate and in plain view. Fasten them to the gate with cable ties. Fence To prevent SERIOUS INJURY or DEATH from a moving gate: • Install warning signs on the front and back of the gate in PLAIN VIEW. • Permanently secure each warning sign in a suitable manner using fastening holes. Gate Post Gate Moving Gate Can Cause Injury or Death KEEP CLEAR! Gate may move at any time without prior warning.
Screws (4) Open the Control Box Remove screws and open the control box. RESET Remove the Control Board Disconnect the reset button, alarm, and coaxial connector. Loosen screws to remove the control board and mounting bracket. Remove batteries and set aside.
Square Gate Post Wall Concrete Anchor (Not Provided) U-Bolt (Not Provided) Screw (Not Provided) 14 INSTALL THE CONTROL BOARD Attach the antenna. Reinstall the batteries, control board, alarm, and reset button. NOTE: Make sure the battery leads are on the left side of the control box and not pinched.
WIRING WARNING WARNING To reduce the risk of SEVERE INJURY or DEATH: • BEFORE installing power wiring or control stations be sure to follow ALL specifications and warnings described below. • ANY maintenance to the operator or in the area near the operator MUST not be performed until the batteries are disconnected. Upon completion of maintenance the area MUST be cleared and secured, at that time the unit may be returned to service.
3 CONNECT THE OPERATOR TO THE CONTROL BOARD Extend the operator cable and wires to the Gate 1 connector and connect as shown. Tighten watertight connector nut. NC R223 P1 CLOSE EDGE K6 ALARM R2Ø7 NO Z2Ø R227 C K5 MAGLOCK OPEN EDGE/ PHOTO NO Z1 L1 R224 C Z22 R92 U4 NC ON R2 Z1 10A 32V OFF Terminal blocks can be removed to simplify wiring.
Connect the Gate Operator (Gate 2) to the Control Box (Model LA412-S Only) P1 C66 C65 D36 C68 J18 Occasionally in dual gate installations, one gate will need to open first and close second. This would happen if there was an ornamental overhang on one gate or if using a solenoid lock, for example. This gate is called the Primary gate and needs to be connected to Gate 1 connections on the control board. Thus, it is preferred that the control box be installed on the same side as this gate.
5 CONNECT SECOND OPERATOR TO CONTROL BOARD (MODEL LA412-S ONLY) • Before digging, contact local underground utility locating companies. • Trench across driveway to bury the extension cable. • Use PVC conduit to prevent damage to cables. • Select hole in bottom of the control box to be used for the extension cable. • Insert extension cable through watertight connector nut and through an available watertight connector mounted in the control box.
6 JUNCTION BOX The following items are required to complete the junction box installation: • 4 x 4 Junction Box with 3/4" NPT threaded port holes • Screws • PVC Conduit Open the junction box by removing screws (4) and set aside. Mount the junction box within 5' of second operator. Junction Box Junction Box Cover Screws (4) hin Wit 5’ Junction Box Extension Cable Gate Operator (Gate 2) se Can Cau te ath any g Ga De e at vin ry or mov Mo Inju Gate maying.
7 CONNECT WATERTIGHT CONNECTORS Route operator cable and extension cable through watertight connector nut and watertight connector. Insert cables and watertight connectors into the holes in the bottom of the junction box (not provided). Feed extension cable through PVC conduit and secure with connector nut.
SOLAR PANEL INSTALLATION Select Site for Solar Panel(s) The solar panel(s) must be located in an open area clear of obstructions and shading for the entire day. The solar panel(s) comes with a 10' cable. If a location near the control box cannot be found, an additional cable will be required. The LA412 Solar Gate Operator is not supported in northern climates where temperatures reach below -4F. This is due to cold weather and a reduced number of hours of sunlight during the winter months.
1 OVERVIEW OF SOLAR PANEL INSTALLATION Make sure the control box has two 12V 7AH batteries installed. Do not connect batteries until instructed.
2 POSITION SOLAR PANEL(S) NOTE: If the panel(s) is not casting a shadow, the battery is not being charged. The location of the panel(s) is critical to the success of the installation. In general, the panel(s) should be mounted using the provided angle bracket facing due south. The solar panel(s) should be mounted in an area clear of all obstructions and shading from buildings and trees. The area should be clear for a 180° arc from due east of the panel(s) location to due west of the panel(s) location.
3 POSITION SOLAR BRACKET Position solar bracket on mounting surface. Mark and drill holes. 4 INSERT MOUNTING BOLTS Insert two bolts into the track located on the back of the solar panel(s). NOTE: Solar panel(s) MUST be installed facing south. Use a compass to determine direction. Slide bolts in track away from bolt hole and align both bolts. 5 SECURE SOLAR PANEL(S) TO SOLAR BRACKET Secure solar panel(s) to solar bracket using two washered nuts.
7 CONNECT SOLAR PANEL(S) TO OPERATOR CONTROL BOX Open the control box cover. Disconnect all power and batteries from the control board. Run the solar panel cable to the bottom of the control box. Thread the cable through the watertight connector and pull the cable through until it reaches the AC PWR/SOLAR connector on the control board. Tighten the watertight connector on the cable. Attach the solar panel wires to AC PWR/SOLAR input terminal (polarity is not important).
8 CONNECT BATTERIES The batteries are charged in circuit by using the solar panel (provided). Locate the two white battery plugs on the left-hand side of the control box. Connect the plug from the battery to connector on the control board. To reduce the risk of FIRE or INJURY to persons use ONLY LiftMaster part 27-NP712 for replacement batteries. NOTES: Batteries will degrade over time depending on temperature and usage. For best performance, the batteries should be changed every 3 years.
PROGRAMMING Program Limits The limits are internal settings that indicate when the gates are in the fully open position and the fully closed position. For proper functionality, the limits must be programmed during the installation process. The programming uses a combination of buttons on the control board. The specific buttons used for programming depends on which side of the gate the control box is mounted and how many operators the installation includes.
NOTES: • The gate with the longer travel span (opening) must be set as the primary gate (GATE 1). • If one gate is overlapping the other, the gate that is overlapping must be connected to GATE 1 so it will start moving before the other gate; gate 2 may need to be closed first if there is overlap or a gate lock is being used. • The programming can be exited at any time by pressing the RESET button. Programming times-out automatically after 60 seconds of inactivity.
Force and Timer to Close FORCE ADJUSTMENT The operator is equipped a with an obstruction sensing feature. If the gate encounters an obstruction the operator will automatically reverse direction and stop. Based on the length and weight of the gate it may be necessary to make force adjustments. The force adjustment should be high enough that small objects such as branches or wind will not cause nuisance interruptions but low enough to prevent serious injury to a person or a vehicle.
To Add or Reprogram a Remote Control (not provided) 1. Press LEARN XMITTER button and release (LED will light up). 2. Press remote button, the LED will flash, alarm output will activate twice. 3. Repeat steps 1 and 2 until all remote controls are programmed (50 remote controls maximum). NOTE: For highest level of security, we recommend the Security✚ ® line of products. Refer to Accessories.
OPERATION AND MAINTENANCE NG WARNING IMPORTANT SAFETY INSTRUCTIONS N WARNING To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL INSTRUCTIONS. 2. NEVER let children operate or play with gate controls. Keep the remote control away from children. 3. ALWAYS keep people and objects away from the gate. NO ONE SHOULD CROSS THE PATH OF THE MOVING GATE. 4. Test the gate operator monthly.
MANUAL RELEASE In case of a power failure, the operator can be disengaged from the gate. With an operator, the release action may sometimes feel stiff/jerky, which is normal and has no effect on function. RELEASE 1. Insert the key into the lock. 2. Turn the key counter-clockwise 180°. 3. Turn the release lever counter-clockwise 180°. 4. Operator is in manual mode and the gate can be opened and closed manually. ENGAGE 1. Turn the release lever clockwise 180°. This engages the motor. 2.
Wiring Diagram To protect against fire and electrocution: • DISCONNECT power and battery BEFORE installing or servicing operator. For continued protection against fire: • Replace ONLY with fuse of same type and rating.
Diagnostic Chart Your gate operator is programmed with self-diagnostic capabilities. The diagnostic LED will flash a number of times then pause signifying it has found a potential issue. Consult Diagnostic Chart below. CONTINUOUS FLASHES (Heartbeat) Operator is in sleep mode. Normal Operation Power ON 2 FLASHES STOP not connected 3 FLASHES Low Battery Voltage 4 FLASHES Low Battery Capacity 5 FLASHES RPM Reversal Gate 1 or in manual release mode.
Troubleshooting SYMPTOM POSSIBLE SOLUTION Operator does not run. Diagnostic LED not on. • Power not connected. Make sure the AC/Solar input is connected and that at least one battery is connected with the corresponding fuse intact. • Low or defective battery. Check the battery to make sure that the red wire goes to the positive terminal of the battery and the black wire goes to the negative terminal of the battery. Replace the battery if the open circuit voltage is below 11.5Vdc. • Bad control board.
SYMPTOM POSSIBLE SOLUTION The arm moves but cannot exit Learn Limits mode. Cannot learn limits. • Arm does not extend or contract enough during travel. The arm piston must extend and contract close to its full length to Learn Limits. Adjust the arm mounting so that this can be achieved. • Motor cable wire not connected. Make sure that all the motor wires are connected properly. • Motor housing is not properly seated.
SYMPTOM POSSIBLE SOLUTION Gate opens but does not close. • An open input is continuously activated. Check the open loop or vehicle probe to make sure they are clear of objects. Verify connections and operation for these devices. • Low battery. Measure the voltage across the battery. Voltage should be above 11.5Vdc. Replace battery if required. • (Optional Accessory) Entry system output is connected to the OPEN input, and is “stuck” opening. Verify entry system connections and operations.
REPAIR PARTS Control Box ITEM 1 2 3 4 5 6 3 PART # K1A6426-1 K23-19380 K74-34392 29-NP712 K76-19446 SOLPNL10W12V LA412-CONT 7 K1A6636 4 K1A6636-1 5 2 DESCRIPTION Control Board with Mounting Bracket Reset Switch Antenna Battery Alarm Solar Panel Not Shown Complete Control Box Receiver Module 315MHz Receiver Module - 390MHz (optional) QTY 1 1 1 1 1 1 1 1 1 NOTE: The fuse is a standard 20 Amp fuse that is available from your local automotive store.
OPEN ACCESSORIES OPEN 373LM 50-220 370LM Protector System® Safety Sensors: The Safety Sensors are recommended for installation with the operators covered in this manual. GPINLCK Gate Arm Pin Lock: The pin lock kit is designed to prevent disconnection of the gate operator and the gate while providing a means to open the gate in case of power failure.
WARRANTY POLICY LIFTMASTER TWO YEAR LIMITED WARRANTY The Chamberlain Group, Inc. warrants to the first purchaser of this product, for the structure in which this product is originally installed, that it is free from defect in materials and/or workmanship for a period of TWO years from the date of purchase. The proper operation of this product is dependent on your compliance with the instructions regarding installation, operation, maintenance and testing.
6 5 4 3 2 1 TEMPLATE FOR POST BRACKET MOUNTING 6 5 4 3 2 1 7 7 01-34491D © 2009, The Chamberlain Group, Inc.
