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Chamberlain Merlin Whisper Drive MT3850, Installation And Operating Instructions Manual

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Chamberlain Merlin Whisper Drive MT3850 Installation And Operating Instructions Manual Download Page 1

MT3850

Sectional Garage Door Opener

INSTALLATION AND OPERATING INSTRUCTIONS

Owner’s Copy: Keep these Instruction for Future Reference.

Please read this manual and the enclosed safety materials carefully!
Periodic checks of the opener are required to ensure safe operation.

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Summary of Contents for Merlin Whisper Drive MT3850

Page 1: ...D OPERATING INSTRUCTIONS Owner s Copy Keep these Instruction for Future Reference Please read this manual and the enclosed safety materials carefully Periodic checks of the opener are required to ensure safe operation professional www chamberlainanz com ...

Page 2: ...cessory allows manual operation of the garage door from outside in the event of power failure Keep garage door balanced Do not let the garage door opener compensate for a binding or sticking garage door Sticking binding or unbalanced doors must be repaired before installing this opener Do not wear rings watches or loose clothing while installing or servicing a garage door opener Frequently examine...

Page 3: ...lement 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 springs 2 Raise and lower the door to see if there is any binding or stick...

Page 4: ...ions below apply to your installation Additional materials may be required You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener NOTE Door types are referenced A B and C throughout the manual A Access Door Safety Reversing Sensor Gap between floor and bottom of door must not exceed 6 mm Safety Reversing Sensor ONE ...

Page 5: ... Sectional Rails Spring Merlin C945 3 Button Mini Remote Control Hardware Bag C840 Wireless Keypad x 2 Merlin C943 3 Button Wall or Visor Remote Control Opener Carton Belt Pack Inner Trolley Rail Braces One Piece Rail Header Sleeve Assembly Rail Cartons Max 40Watt E27 Light Bulb x2 TM Your garage door opener and rail are packed in two separate cartons The MT3850 Opener Carton contains the opener i...

Page 6: ...tions until rail assembly is complete ASSEMBLY STEP 2 Install the Belt Remove belt from carton and lay it out on the floor be careful not to allow the belt to twist Hook the trolley connector into the connector slot on the inner trolley assembly Direction Arrow Header End Rail Assembly Pulley Bracket Inner Trolley DOOR Rail Assembly Wood Rail Section Brace Rail Section Connector Slot Trolley Conne...

Page 7: ...tach the Rail to the Opener Holding belt out of the way Slide the rail assembly onto shim bracket until rail assembly is securely fastened to the opener Wrap the belt around the belt pulley ensuring the belt engages the teeth of the belt pulley Shim Bracket Belt Pulley Rail Assembly Belt ASSEMBLY STEP 5 Attach the Trolley to the Rail Assembly Slide outer trolley into the back opener end of the rai...

Page 8: ...leeve This sets spring for optimum belt tension Belt may slip off pulley if belt is too loose If belt does slip re tighten spring nut by turning nut clockwise a half turn Do NOT over tighten belt Hex Screws Belt Pulley Cover Mounting Plate Opener Belt Pulley ASSEMBLY STEP 8 Attach the Belt Pulley Cover Position the belt pulley cover over the opener belt pulley so the three holes in the cover align...

Page 9: ...le height above the highest point of your door is less than recommended use the maximum height possible as long as the door does not contact the rail or refer to page 9 for ceiling installation To prevent possible SERIOUS INJURY or DEATH Header bracket MUST be RIGIDLY fastened to structural support on header wall or ceiling otherwise garage door might not reverse when required DO NOT install heade...

Page 10: ...header bracket with coach bolts Ceiling mount Extend vertical centre line onto the ceiling Centre the header bracket on the vertical mark no more than 150mm 6 from the wall Make sure the arrow is pointing toward the opener Mark all of the header bracket holes then drill 4 5mm pilot holes and fasten the header bracket with coach bolts For concrete ceiling mount use concrete anchors provided Coach B...

Page 11: ...se NOTE If the door spring is in the way you ll need help Have someone hold the opener securely on a temporary support to allow the rail to clear the spring Position the rail bracket against the header bracket Align the bracket holes and join with either the single long clevis pin or the two small clevis pins as shown Figure 1 NOTE Small Clevis Pin should be used if the carriage bolt is in the way...

Page 12: ...oor and rail 1 Raise the opener onto the support 2 Open the door completely and place a 100mm spacer between the door and the rail as shown 3 The top of the door should be level with the top of the opener Do not position the opener more than 50mm 2 above this point NOTE Timber spacers should be left in place until completion of Installation Step 5 To prevent scratching or marking the garage door r...

Page 13: ...ake sure the rail is centred over the door or in line with the header bracket if the bracket is not centred above the door 7 Remove timber spacer Operate the door manually If the door hits the rail raise the header bracket 8 Grease the inside of the rail surface where the trolley slides with rail grease provided NOTE DO NOT connect power to opener at this time To avoid possible SERIOUS INJURY from...

Page 14: ...or bracket Drill 4 5mm fastening holes Secure the door bracket using the two self threading screws Figure 2A Alternately use two 8mm bolts spring washers and nuts not provided Figure 2B Metal insulated or lightweight factory reinforced doors Drill 4 5mm fastening holes Secure the door bracket using the self threading screws Figure 3 Wood Doors Use top and bottom or side to side door bracket holes ...

Page 15: ... 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 4 5mm pilot holes and fasten the bracket with the self threading screws provided Wood Doors Drill 8mm holes and use long carriage bolts spring washers and nuts not provided depending on your installation needs NOTE The door bracket may be in...

Page 16: ... Re connect to trolley with cut end down as shown Bring arm sections together Find two pairs of holes that line up and join with bolts spring washers and nuts Pull the emergency release handle toward the opener at a 45 angle so that the trolley release arm is horizontal ONE PIECE TILT DOORS Make sure garage door is fully closed Pull the emergency release handle to disconnect the outer trolley from...

Page 17: ...4 Volt Bell Wire PRE WIRED INSTALLATION REMOVE REPLACE COVER To Replace Insert Top Tabs First Push Bar Cover Terminal Screws BACK VIEW Top Mounting Hole Bottom Mounting Hole W 2 R 1 Bell Wire Wall box not provided There are 2 screw terminals on the back of the door control Strip about 6mm of insulation from bell wire Separate wires enough to connect the white red wire to R terminal screw 1 and the...

Page 18: ...tighten the wing nut on the receiving eye to allow for final adjustment Securely tighten the sending eye wing nut Run wires from both sensors to the opener and connect the two white only wires to the white terminal and the black white wires to the grey terminal on your opener refer figure 5 Mount Bracket With Square Holes Screws C Wrap Lock Nuts Mounting Bracket with slot Lock Nuts Lag Screws Carr...

Page 19: ...ncy release handle unless garage doorway is clear of persons and obstructions NEVER use handle to pull door open or closed Lens Hinge 40 Watt Max Standard Light Bulb Release Tab INSTALLATION STEP 10 Install the Lights Press the release tabs on each side of lens Gently rotate lens back and downward until the lens hinge is in the fully open position Do not remove the lens Install a 40 watt maximum l...

Page 20: ...r A flashing orange LED with beep indicates the opener is operating on battery power and that the battery charge is low To test the battery is functioning properly open and close the garage door Re connect the opener power cord into the electrical outlet Verify that the green LED is flashing on the Battery status LED indicates that the battery is now charging Test completed Battery Status LED NOTE...

Page 21: ...r reaches the desired DOWN closed position Figure 4 6 Once the door is closed if there appears to have too much pressure on the door you may adjust the door up and down using the black and orange buttons to reach the desired closed position 7 Push the remote control or the door control Figure 5 This sets the DOWN close limit and should bring the door to the open position When the opener stops in b...

Page 22: ...p flashing when the force required to open and close your door has been learnt The door must travel through a complete cycle UP and DOWN in order for the force to be set properly If the opener cannot open and close your door fully inspect your door to ensure that it is balanced properly and is not sticking or binding Refer page 2 Preparing your garage door Black Button Orange Button Push Orange bu...

Page 23: ...ustment Steps 1 and 2 Programming the Limits and Forces NOTE On a sectional door make sure limit adjustments do not force the door arm beyond a vertical position Refer Figure 3 page 15 Repeat the test When the door reverses on the 40mm board laid flat remove the obstacle and run the opener through 3 or 4 complete travel cycles to test adjustment If the opener continues to fail the Safety Reverse T...

Page 24: ...ontrol Button to Learn Remote Press the button of the remote control to be learned and the worklight will flash to confirm the remote has been learned Hour Minute Feature Press or hold either of these buttons to increment the hour or minute displayed on the LCD display Lang Language Feature Press this side button to toggle between the three languages English Spanish and French Degrees F C Feature ...

Page 25: ...he Orange indicator light on the opener will flash continuously 2 Press and release the learn button on the opener 3 The opener lights flash when it has learned the code If light bulbs are not installed one click will be heard 4 Ensure there are no obstructions in the path of the door then press the remote control button to test the door Using the LCD Motion Detecting Control 1 Press and hold the ...

Page 26: ...ion Detecting Control C198 Included NOTE This method requires two people if the keyless entry is already mounted outside the garage 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 motion detecting control panel 3 Continue holding the ENTER and LIGHT buttons while y...

Page 27: ...ires for the sensors If the sensor indicator lights do not light replace the safety reversing sensors 3 Flashes Control console or wire shorted Symptom No LCD Display Inspect control console wires for a short staple in wire Replace as needed Disconnect wires at control console and touch wires together If opener activates replace control console If opener does not activate disconnect control consol...

Page 28: ... open and DOWN close positions proceed to Test the Safety Reversal System refer page 22 TROUBLE SHOOTING 1 Opener doesn t operate from either door control or remote Does the opener have electric or battery power Plug lamp into outlet If it doesn t light check the fuse box or the circuit breaker Some outlets are controlled by a wall switch Have you disengaged all door locks Review installation inst...

Page 29: ...l sections 183D0178 Segmented rail braces 012C0855 Header bracket 171A0028 031D0537 Belt pulley cover Replacement belt packs 041A5844 2 3m 041A5844 1 2 5m 041A5844 2 3 0m 041B4494 1 Bell wire 8423CR3 8430CR3 One Piece Rails 8023CR3 2 3m 8025CR3 2 5m 8030CR3 3m 041B4103 Belt tensioner 041A6398 Inner trolley repair kit 144C0077 Idler pulley 012C0810 End bracket 30mm steel 178B0086B Curved arm 041B56...

Page 30: ...READY ENROLL C379 13 C198 1 Model CM844 4 Channel remote control 2 Model CM128 Wireless Wall Button 3 Model C940 1 Channel visor remote control 4 Model C943 3 Channel visor remote control 5 Model C945 3 Channel mini remote control 6 Model C98 Motion Detecting Control Panel 7 Model C840 Keyless Entry System 8 Model C77 The Protector System TM 9 Model CM1702 Quick Release Lock 10 Model 760E Outside ...

Page 31: ...ry open the case as shown Insert battery positive side up Dispose of old battery properly Your opener can be activated by any of the following devices The LCD Motion Detecting Control Hold the PUSH BAR down until door starts to move The Outside Keyswitch or Keyless Entry System if you have installed either of these accessories The Remote Control Transmitter Hold the push button down until the door...

Page 32: ...g neglect abuse wear and tear accident electrical storm excessive use or conditions other than normal domestic use This warranty does not cover any problems with or relating to the garage door or garage door hardware including but not limited to the door springs door rollers door alignment or hinges any problems caused by electrical faults replacement of batteries or light bulbs or labour charges ...

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