Merlin MJ3800 Operations Instructions

MJ3800Residential & Light Duty Commercial Door OpenerInstallation and Operating Instructionsgomerlin.com.augomerlin.co.nzOwners Copy: Please keep

10To prevent possible SERIOUS INJURY or DEATH from electrocution or fire:• Be sure power is not connected to the opener, and disconnect power to circu

11Be sure power is not connected to the door openerBEFORE installing the safety reversing sensor.To prevent SERIOUS INJURY or DEATH from a closingdoor

12CONNECT ELECTRIC POWERTO AVOID INSTALLATION DIFFICULTIES, DO NOT RUN THE GARAGE DOOR OPENER UNTIL INSTRUCTED TO DO SO.Connect to properly fused and

13Invisible Light BeamProtection AreaSensorSensorSafety Reversing SensorBell WireBell WireOpenerSafety Reversing SensorPower Door LockQuick-Connect Te

14To prevent damage to vehicles, be sure fullyopen door provides adequate clearance.BLACKORANGEPush and holduntil the dooris at desired UPposition the

15ADJUSTMENT STEP 2Setting the ForceThe force setting button is located on the front panel.The force setting measures the amount of forcerequired to o

1640mm (1 1/2”) obstacleWithout a properly installed safety reversalsystem, persons (particularly children) could beSERIOUSLY INJURED or KILLED by a c

17OPERATIONIMPORTANT SAFETY INSTRUCTIONSTo reduce the risk of SEVERE INJURY or DEATH:WARNINGWARNING1. READ AND FOLLOW ALL WARNINGS ANDINSTRUCTIONS.2.

Your door opener has already been programmed at the factory to operate with your hand-held transmitter. Thedoor will open and close when you press the

1. Press and release the orange“learn” button on opener. Thelearn indicator LED will glowsteadily for 30 seconds.2. Within 30 seconds, enter a fourdig

2CONTENTS PAGESAFETY INSTRUCTIONS . . . . .2CARTON INVENTORY . . . . . . .3ACCESSORIES . . . . . . . . . . . 3SPECIFICATION . . . . . . . . . . .4TOOL

201NOTICE6783452Installation PartsREPAIR PARTSKEY PARTNO. NO. DESCRIPTION™1 041A6102-1 Electric powered door lock2 CM128 Wireless wall button3 C77 Pro

21Your door opener is programmed with self-diagnosticcapabilities. The “Learn” button/diagnostic LED will flash anumber of times then pause signifying

TROUBLESHOOTING1. The opener doesn't operate from either the multi-function door control, wireless wall button or thetransmitter:• Does the opene

23CARE OF YOUR OPENERMAINTENANCE SCHEDULEOnce a Month•Manually operate door. If it is unbalanced orbinding, call a trained door systems technician.• C

© 2014, The Chamberlain Group Inc.TMTrademark of The Chamberlain Group, Inc.® Registered Trademark of The Chamberlain Group, Inc.114A4085ECHAMBERLAIN

3ManualTMCM128 WirelessWall Button2 x C945 3chrolling codetransmittersOpenerLOCKLIGHTMulti functiondoor controlCM475 BatteryBackup UnitHardware Invent

4PREPARING YOUR DOORBefore you begin:•Disable locks.• Remove any ropes connected to door.• Complete the following test to make sure yourdoor is balanc

SafetyReversing SensorSafetyReversingSensorTorsion SpringOpenerWireless wall buttonAccess DoorGap between floorand bottom of door must not exceed 6 mm

ASSEMBLY STEP 1Attach the Collar to the OpenerTo avoid installation difficulties, do not run the dooropener until instructed to do so.• Loosen the col

7INSTALLATIONINSTALLATION STEP 1Position the Opener1. Close the door completely.2. Slide the opener with collar over the end of the torsionbar. Ensure

StaplesLock Screw1/4-20 x 1/2" (2)HARDWARE SHOWN ACTUAL SIZELock TemplateRollerGarageDoor TrackTOPDRILL 8mmDRILL 19mmDRILL 8mm132A2505TOPDRILL5/1

WHT/GRNTo insert or release wire,push in tab withscrewdriver tipCable TensionMonitorStrip wire (11mm)WHT/GRNCableTensionMonitorCable TensionMonitor Ro