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MJ3800
Residential & Light Duty Commercial Door Opener
Installation and Operating Instructions
Owners Copy: Please keep these instructions for future reference
This manual contains IMPORTANT SAFETY information
DO NOT PROCEED WITH THE INSTALLATION BEFORE READING THOROUGHLY
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Table of Contents
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Summary of Contents for Merlin MJ3800
- Page 1 MJ3800 Residential & Light Duty Commercial Door Opener Installation and Operating Instructions Owners Copy: Please keep these instructions for future reference This manual contains IMPORTANT SAFETY information DO NOT PROCEED WITH THE INSTALLATION BEFORE READING THOROUGHLY...
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Page 2: Table Of Contents
Safety Reverse System or damage the garage door. Do not wear rings, watches or loose clothing while SPECIAL NOTE: Merlin strongly recommends that The installing or servicing a garage door opener. Wear gloves, Protector System be installed on all garage door openers. -
Page 3: Carton Inventory
CARTON INVENTORY Your door opener is packaged in one carton which contains the opener and the parts illustrated below. Note that accessories will depend on the model purchased. If anything is missing, carefully check the packing material. Hardware Inventory INSTALLATION HARDWARE Hex Screw #14-10x1-7/8"... -
Page 4: Specification
PREPARING YOUR DOOR Before you begin: • Disable locks. To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician if • Remove any ropes connected to door. • Complete the following test to make sure your door binds, sticks or is out of balance. -
Page 5: Door Requirements
DOOR REQUIREMENTS Survey the area to see if any of the conditions • Must have minimum of 203mm (8”) between the below apply to your installation. Additional side wall (or obstruction) and the end of torsion materials may be required. You may find it helpful bar. -
Page 6: Assembly
HARDWARE SHOWN ACTUAL SIZE Socket Wrench Screw Alternate Mounting Kit (NOT SUPPLIED): #10-32 This kit allows model MJ3800 to be mounted below the torsion bar in the case where the torsion bar is not round or the normal mounting area is obstructed. -
Page 7: Installation
INSTALLATION IMPORTANT INSTALLATION INSTRUCTIONS DEATH: WARNING WARNING To reduce the risk of SEVERE INJURY or 1. READ AND FOLLOW ALL INSTALLATION 7.NEVER wear watches, rings or loose clothing WARNINGS AND INSTRUCTIONS. while nstalling or servicing opener. They could be caught in the door or opener mechanisms. 2. - Page 8 INSTALLATION STEP 2 Attach the Emergency Release Rope and Handle To prevent possible SERIOUS INJURY or DEATH from a falling door: • Thread one end of the rope through the hole in • If possible, use emergency release handle to the top of the red handle so “NOTICE”...
- Page 9 INSTALLATION STEP 4 Figure 1 Attach the Cable Tension Monitor (Required) Your MJ3800 is supplied with a cable tension monitor. This safety device is supplied to monitor the cable for Opener ANY slack that may occur and will reverse the door...
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Page 10: Control
1.5m with an unobstructed view of the door. Disconnect power to the opener whilst installing this accessory to prevent accidental activation. • Ensure your MJ3800 opener is switched off whilst Locate minimum 1.5m above the floor. installing your wireless door control to prevent accidental activation. -
Page 11: Install The Protector System
INSTALLATION STEP 7 Install The Protector System Be sure power is not connected to the door opener When installed the safety reversing sensor must be BEFORE installing the safety reversing sensor. connected and aligned correctly before the door To prevent SERIOUS INJURY or DEATH from a closing opener will move in the down direction. - Page 12 LED Indicator light LIGHT The Light function is not available with the MJ3800. Lock feature LOCK Designed to prevent operation of the door from hand-held transmitters whilst still allowing the door to open and close from the Door Control, the Outdoor Key Switch and the Keyless Entry Accessories. To activate, press and hold the Lock button for 2 seconds.
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Page 13: Auto Close
AUTOMATIC CLOSE TIMER FUNCTION Note: Requires the Chamberlain Protector System (IR-sensors) to be installed. If Protector System (IR-sensors) is installed to enable the timer to close function (first time), install sensors, close the garage door and wait for 5 minutes. A Multi-function Door Control is required to enable and disable the auto-close function. - Page 14 ADJUSTMENT STEP 1 Program the Travel Limits Without a properly installed safety reversal Travel limits regulate the points at which the door will system, persons (particularly children) could be stop when moving up or down. Follow the steps below SERIOUSLY INJURED or KILLED by a closing to set the limits.
- Page 15 ADJUSTMENT STEP 2 Figure 1 Figure 2 Setting the Force Indicator The force setting button is located on the front panel. Black Light Button The force setting measures the amount of force BLACK required to open and close the door. Push Orange button twice to enter unit into Force...
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Page 16: Adjustment
ADJUSTMENT STEP 5 Test the Safety Reversal System Without a properly installed safety reversal TEST system, persons (particularly children) could be SERIOUSLY INJURED or KILLED by a closing the • With the door fully open, place a 40mm (1 1/2”) door. -
Page 17: Important Safety Instructions
OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING WARNING To reduce the risk of SEVERE INJURY or DEATH: 1. READ AND FOLLOW ALL WARNINGS AND reversal system MUST be tested. INSTRUCTIONS. 9. Safety reversal system MUST be tested every 2. ALWAYS keep transmitters out of reach of children. month. -
Page 18: Wireless Programming
1. Press and hold button you wish is factory programmed to operate it. Additional buttons on to program to the opener. any 3-button transmitter or mini-transmitter can be programmed to operate other Merlin Professional garage door openers or gate openers. Figure 1 C943 2. - Page 19 TO ADD, REPROGRAM OR CHANGE A KEYLESS ENTRY PIN USING THE “LEARN” BUTTON 1. Press and release the orange “learn” button on opener. The learn indicator LED will glow steadily for 30 seconds. 2. Within 30 seconds, enter a four digit personal identification number (PIN) of your choice on the keypad.
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Page 20: Repair Parts
REPAIR PARTS Installation Parts PART DESCRIPTION 041A4582 Emergency release rope & handle ™ assembly 041A6102-1 Electric powered door lock 041B4494-1 2-Conductor bell wire - white & CM128 Wireless wall button white/red Protector system (IR Beams) 041A6104-1 Cable tension monitor 041A6388 Collar with set screws 041C0902 Mounting bracket... -
Page 21: Diagnostic Chart
Installed “Learn” Safety Reversing Button LED Sensor or Diagnostic Your door opener is programmed with self-diagnostic “Learn” capabilities. The “Learn” button/diagnostic LED will flash a Button number of times then pause signifying it has found a potential issue. Consult Diagnostic Chart below. Diagnostic Chart 1 FLASH Symptom: One or both of the Indicator lights on the safety reversing sensors do not... -
Page 22: Troubleshooting
Remove the obstruction or 15. Power lock makes noise when operating. repair the door. • Call your local Merlin dealer or Chamberlain customer 7. The door opens but won't close: ® service for replacement power lock. -
Page 23: Care Of Your Opener
® transmitter have been factory-set to a matching code which changes with each use, randomly accessing over 100 billion new codes. Your opener will operate with up to 64 merlin Security ® transmitters and one Keyless Entry System. If you... -
Page 24: Warranty
What is covered 5 problems caused by electrical faults or replacement of batteries or light Chamberlain warrants to the original purchaser of the Merlin MJ3800 Sectional Door bulbs, blown fuses, electrical surges, power surges or power strikes, fire, Opener (Unit) that all parts of the Unit, other than remote controlled transmitters, flood, rain, water, lightning or storms;...
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