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TESTING THE DOOR

4

Complete the following test to ensure your door is well
balanced, and not sticking or binding:

• Disable all locks and remove any ropes connected to the

garage door.

• Lift the door to about halfway and then release it. The

door should remain spring balanced.

• Raise and lower the door to determine if there are any

sticking or binding points.

• If your door does not hold in place or the door binds or

sticks, call a qualified door technician before installing the
opener.

Non opener side

Opener side

• Install the stop collar on the opposite end to where

the opener is to be installed.

• Fit the stop collar hard against the boss of the door

drum. Ensure the U-bolt holding the door shaft to the door

bracket is tightly secured.

INSTALLING THE STOP COLLAR

5

• Place the weight in the centre of the door (as shown).

• Use a pencil to mark the two hole positions.

• If the door curtain does not have a handle you will need

to drill two 5.5mm holes through the two marked
positions, then place the weight bar on the inside of the
door.

• Use the bolts, washers and nuts (provided) to

fasten the weight bar in place.

NOTE: If the door has a lifting handle, remove the
handle, nuts & bolts. Place weight bar over the
handle holes, insert extended bolts through the
weight bar & fasten handle back in place.

INSTALLING THE WEIGHT BAR (PROVIDED)

6

3

SAFETY CHECK!

Is the stop collar

installed?

YES: proceed to the next

step

NO: install the stop collar

before proceeding

Summary of Contents for Merlin Professional MR650

Page 1: ...g Garage 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 I...

Page 2: ...d and follow all instructions carefully The garage door opener is designed and tested to offer safe service provided it is installed and operated in strict accordance with the instructions in this man...

Page 3: ...e edge of the bracket If the roller door drum is on the edge of the curtain or is a smaller diameter additional clearance may be required If the drum is more than 60mm from the curtain edge or of a sm...

Page 4: ...against the boss of the door drum Ensure the U bolt holding the door shaft to the door bracket is tightly secured INSTALLING THE STOP COLLAR 5 Place the weight in the centre of the door as shown Use a...

Page 5: ...shown Secure with an overhand knot at least 25mm from the end of the rope to prevent slipping Thread the other end of the rope through the loop of the manual release cable Adjust rope length so the ha...

Page 6: ...ive leg and fix in place using screws provided Slide the reinforcing brace over the poles and fix in place using the screws provided ATTACHING EXTENSION POLES IF REQUIRED 10 LEFT RIGHT HAND INSTALLATI...

Page 7: ...nsions may be necessary refer section 10 Refit the door mounting bracket to the wall If the door bracket needs to be relocated due to opener width refer section 3 Clamp the opener on the door axle and...

Page 8: ...Ensure the door is positioned halfway the opener is engaged and the power is turned on Press and hold the LMT Limit button until the orange indicator LED starts flashing and then release Either right...

Page 9: ...your installation and successfully carried out the safety reverse system test outlined above install the warning labels provided with your opener as shown The risk of entrapment label must be install...

Page 10: ...pener off Install the Protector SystemTM using the brackets wires and instructions provided with the product Twist the two white only wires together and terminate them into the white 2 terminal Twist...

Page 11: ...should be pre programmed by the factory If adding a new wall control program into the opener before mounting the unit as detailed in section 19 professional LRN Press LRN or LED will FLASH TO ADD Tran...

Page 12: ...e on the keypad 2 then press and hold the ENTER button 3 Release the button when the opener courtesy LEDs flash once 3 the code is learned Alternate programming method using the motion detecting contr...

Page 13: ...DC power output for external devices MR850 only 3 Voltage free door monitoring output MR850 only 4 The Protector SystemTM IR Beams C77 5 Motion detecting control panel C98 6 Standby Power Unit battery...

Page 14: ...2B1600 22 SPARE PARTS 041A6811 Mount plate sub assembly MR850 including motor 041A6812 Sungear kit 041A6813 Front upper housing 041A6814 Base housing MR850 041A7292 Base housing MR650 041D6637 PCB for...

Page 15: ...less finger print access system 8 Model C98 Motion detecting control panel 9 Model 760 Outside keyswitch 10 Model CM1702 Outside quick release 11 Model C77 The Protector System IR Beams 12 Model FLA24...

Page 16: ...or flashing Realign receiving eye sensor clean lens and secure brackets Symptom The RPM Sensor Short travel 150 200mm 6 8 Unplug unit to reset Try to operate opener check diagnostic code If it is sti...

Page 17: ...r binding call a trained door systems technician Clear any ice or snow from the garage floor area where the door closes Repeat the limit and force setting in section 13 14 Repeat safety reverse test a...

Page 18: ...necessary adjustments sections 13 14 Manually operate door If it is unbalanced or binding call for professional garage door service Check to be sure door opens and closes fully SPECIAL NOTE Chamberlai...

Page 19: ...nd or workmanship for a period of 2 YEARS from the date of first purchase from the Seller The MR850 DC motor only has a 5 year warranty from the date of first purchase from the seller when installed o...

Page 20: ...114B3630D 2009 The Chamberlain Group Inc TM Trademark of The Chamberlain Group Inc Registered Trademark of The Chamberlain Group Inc...

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