MR850
professional
MR850/MR650
Rolling 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 INSTALLATION BEFORE READING THOROUGHLY
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1
2 TOOLS REQUIRED
CARTON INVENTORY
1. Instruction manual (this document)
2. Stop collar
3. Clamp bracket
1. Ladder
2. Adjustable wrench for U-bolts already installed
on the door
4. Release handle, cord and risk of entrapment card
5. Transmitters (2)
6. Wireless wall button
3. 8mm socket, 10mm socket and 13mm extended
socket and socket wrench
4. 300mm socket extension (for minimum side-room
installations)
7. Hardware bag
8. Weight bar
5. Drill and 5.5mm drill bit
9. Clamp plate
10. Warning label and risk of entrapment label
6. Philips-head screwdriver
7. Marker pen
8. Door stand or similar device to safely support door
(not shown)
3
DOOR REQUIREMENTS
The maximum allowable door height is 4.5m with a maximum curtain area of 12.5m²* (MR650) -16.5m²* (MR850)
(door height in metres multiplied by the width in metres). The door must be spring balanced.
*The Protector System™ (IR Beams) must be installed if the force at the edge of the closing door exceeds
400N (40kgf). Door axle diameter must not exceed 35mm.
Minimum distance from
edge of curtain to edge of
door bracket 45mm
95mm
Direct clamping
method
Independent
clamping method
95mm
Ensure that there is at least 45mm from the edge of the curtain to the 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 smaller diameter, an extension pole kit
may be required.
Different drum and bracket types may result in the minimum side room clearance not being possible and
extension poles being required. Ensure there is a power point near the opener.
2
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4 TESTING THE DOOR
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.
5
INSTALLING THE STOP COLLAR
• Install the stop collar on the opposite end to where
the opener is to be installed.
Non opener side
Opener side
• 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.
SAFETY CHECK!
Is the stop collar
installed?
YES: proceed to the next
step
NO: install the stop collar
before proceeding
INSTALLING THE WEIGHT BAR (PROVIDED)
6
• 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.
3
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THE RELEASE HANDLE & CORD
7
• Thread one end of the rope through the hole in the top
of the red release handle so that “NOTICE” reads
right side up as shown.
MR850
professional
• 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.
Limit (up)
button
Learn (down)
button
• Adjust rope length so the handle (when installed) will
be no higher than 1.8m above the floor. Secure with
an overhand knot. If the door is greater than 2.5m in
height the release cord extension kit accessory is
required.
Start / Stop
Activation button
Release cable
Rope
Manual release
NOTE: Final adjustment of handle height should be
completed after the opener is installed. If it is
necessary to cut the rope, heat seal the cut end to
prevent unravelling (refer section 16).
Overhand knot
warning label
Release handle
8
OPERATING THE MANUAL RELEASE
MR850
To disengage the opener
professional
Pull the release cord down firmly,
(opener will make a clicking noise).
To re-engage the opener
Pull the release cord down firmly,
(opener will make a clicking noise).
Pull down
FIRMLY
Disable all locks and remove any ropes connected to the garage door.
Take care when operating the manual release as an open door may fall rapidly due to weak or
broken springs, or being out of balance.
9
PINNING THE DOOR
Note: A ballooning door may delay the safety reversal
response and can compromise garage door security.
Free curtain
Ballooning Add fasteners here
• To remedy any ballooning place self tapping metal screws
or rivets where the curtain leaves the roll. Secure these
through the curtain into the drum wheel at each end of the
roll.
• After determining the correct fastener location as shown, lift
the door approximately half a turn from the closed position
to allow access for drilling.
Door closed
Door secure
Door can be
lifted
4
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10
ATTACHING EXTENSION POLES (IF REQUIRED)
Optional accessory not provided
• Align the extension pole holes with the drive legs.
• Insert the extension poles into the drive leg and fix in
place using screws provided.
• Slide the reinforcing brace over the poles and fix in
place using the screws provided.
Release cable
Rope
Manual Release
Warning Label
Overhand knot
Reinforcing brace must be used. Use
extension pole kit part number 001B6449-1
Release handle
11
LEFT / RIGHT HAND INSTALLATION
LEFT
RIGHT
(factory
default
setting)
(handing must be
changed during limit
setting, section 13)
Inside garage looking out
5
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12
INSTALLATION PROCEDURE
Do not allow people to walk under or
around the door during the installation
process as serious injury can occur.
NOTE: The opener can be installed on either side
of the door. The following instructions are for
RIGHT HAND INSTALLATIONS (as illustrated i.e.
inside the garage looking out). For left hand
installations, reverse the instruction terminology
(eg LEFT for RIGHT etc).
Rope
Door stand
Preparation:
• Place the opener in manual release mode (refer
section 8).
• Open the roller door fully. For safety, tie a rope
around the door.
• Ensure the door axle U-BOLT and door mounting
bracket on the left hand side (non opener side) are
securely fastened.
• Support the door with a door stand or similar device
to safely support the door.
• Mark the position of the door shaft on the right hand
door bracket (for reassembly purposes).
• While the door is supported, remove the right hand
axle U-Bolt and door mounting bracket from the wall.
Rope
Install the opener:
• Slide the opener over the door axle and engage the
drive legs into the door drum wheel, either side of a
spoke. Extensions may be necessary (refer section
10).
Door stand
• 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 door bracket
in the marked position using the clamp assembly
supplied (tighten to 25 – 28Nm).
• If side room exceeds 95mm clamp independently to
the door axle as illustrated in section 3.
• Remove all ropes and the support stand.
• Check the operation of the door in manual mode by
raising and lowering by hand. It should operate
smoothly without sticking or binding. The disengage
handle should already be attached less than 1.8m
above the floor (refer section 7).
Tighten to
25-28Nm
Connect the power:
• Position the power cable away from the door curtain
and any moving parts.
• Plug the opener into a nearby power point and turn
ON.
• The opener courtesy LEDs should turn ON.
• The opener must now be programmed for:-
• DOOR TRAVEL LIMITS
(Section 13)
• RIGHT OR LEFT HAND OPERATION (Section 13)
)
(Section 14
• FORCE SETTING
6
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13
SETTING THE LIMITS & RIGHT OR LEFT OPERATION
Travel limits set how far your door goes up and down. Your opener must be configured correctly for right or left
hand installation to operate correctly, if not the door will rotate in the reverse direction.
NOTE: The MR850/MR650 opener is factory configured for right hand installation.
The opener will operate during this procedure. Make sure the door is clear of obstruction.
Ensure your hands are away from any moving parts before activating the door.
Setting right or left hand operation:
• Ensure the door is positioned halfway, the opener
is engaged, and the power is turned on.
LMT
professional
Press and hold
until
• Press and hold the LMT (Limit) button until the
orange indicator LED starts flashing, and then
release. Either right or left courtesy LEDs will
light up.
FLASHING
LED
Right bank
will light up
MR850
professional
• For right hand installations, the right side bank of
LEDs must light up, and for left hand
installations, the left hand bank must light up.
(IF REQUIRED)
To change
press and hold
until correct
bank lights up
professional
• If the incorrect bank of LEDs is illuminated,
simply press both LRN and LMT buttons
simultaneously until opposite bank lights up.
&
LRN
LMT
Setting the open limit:
Left bank
MR850
will light up
for Left hand
installation
professional
• Press and hold the LMT (Limit) button, until the
door reaches the desired open position, and then
release. You can adjust the door by using the
LRN (down) button and LMT (up) button to adjust
as necessary. Make sure there is enough room
for your vehicle to pass under.
professional
professional
professional
Drive door UP to
desired height
LMT
If required: Use LRN (DOWN)
Activate door
Setting the bottom limit:
• Press and release the ACTIVATION button, this
sets the UP limit, and begins closing the door.
IMMEDIATELY press and hold the LRN (Learn)
button until the door reaches the desired closed
position. If the door closes too hard against the
floor, use the LMT (up) and LRN (down) button to
adjust.
Immediately the door starts down
Press and hold to drive
LRN
door down to closed
If required: Use LMT (UP) to adjust
Activate door to open
professional
• Press and release the ACTIVATION button, this
sets the DOWN position and begins opening the
door to the fully open position.
Orange
MR850
LED ON &
Courtesy LEDS
professional
Test the door:
on Dim
• Close and open the door 3 or 4 times using the
ACTIVATION button to confirm the limit settings.
• If the door does not complete the test cycle
proceed to section 14 to set the force.
professional
Close the door to test limits
MR850
• Leave the door in the up position.
Motor will make a click &
FULL BRIGHT courtesy
LEDs will turn on
professional
NOTE: The force must now be set in order to
complete your installation (refer section 14).
7
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14
SETTING THE FORCE
The force, as measured on the closing edge of the door,
should not exceed 400N (40kgf). If the closing force is
measured to more than 400N, the Protector SystemTM (IR
Beams) must be installed (refer section 17).
professional
LRN
Press twice
FLASHING
orange LED
x 2
• Press the LRN button twice to place the opener into
force adjustment mode. The indicator LED will flash
quickly.
professional
Activate
• Press the ACTIVATION button on the front of the
opener. The door will travel to the DOWN limit. Press
the ACTIVATION button again, the door will travel to
the UP limit. The indicator LED will stop flashing when
the force has been learned.
Wait: Door closed
Activate
professional
NOTE: The courtesy LEDs will go out after 2.5 min.
Wait: Door open
• 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.
Orange LED
will go out
Note: Courtesy LEDs will go out after 2.5 minutes
15
TESTING THE SAFETY REVERSE SYSTEM
The safety reverse system test is important.
The garage door must reverse on contact
with a 40mm obstacle laid flat on the floor.
Failure to properly adjust the opener may result in
serious personal injury from a closing garage
door.
40mm
Operate the door in the down direction. The door must
reverse upon contact with the obstacle. If the door
stops on the obstacle, remove obstacle and repeat
limit and force setting (refer sections 13 and 14).
40mm Test obstacle
Repeat test of the safety reverse system.
FIXING WARNING LABELS
16
Once you have completed 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 installed
adjacent to the release handle at a height of less than
1.8m from the floor.
The WARNING label must be installed in a prominent
place near any fixed control.
Any fixed wall control or wireless door control must be
mounted at a height of no less than 1.5m out of the
reach of children.
Ensure the manual release instruction card is
attached to the rope as detailed in section 7.
Read the safety instructions (page 1) for further
details concerning safety.
STANDARD INSTALLATION COMPLETE
8
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INSTALL THE PROTECTOR SYSTEM™ (IR BEAMS) OPTIONAL ACCESSORY
17
NOTE: This accessory must be used for all
installations where the closing force as measured
on the bottom of the door is over 400N (40kgf).
After the opener has been installed and adjusted, the
Protector System™ accessory can be installed.
Instructions are included with this accessory.
IR Beams must be installed
to detect a 100mm high
obstacle at any point along
the floor.
The Protector System™ provides an additional
measure of safety against a small child or animal
being trapped under a garage door. It uses an infra-
red beam, which when broken by an obstruction,
causes a closing door to open and prevents an open
door from closing and is strongly recommended for
homeowners with young children.
Red LED
MUST BE ON
Red LED
MUST BE ON
NOTE: The opener will automatically detect the
Protector SystemTM when it is installed and
operating for 5 minutes (during this time the
beams must remain unobstructed). The opener
will not close unless the beams are aligned.
IR Beam
IR Beam
SAFETY FIRST!
Whilst Chamberlain have engineered safety features into your garage door opener, we urge you to consider fitting
IR Beams to your new garage door opener. In many countries these devices are compulsory to assist in
preventing serious injury or property damage. For your own peace of mind and the safety of others please install
this inexpensive safety device.
Setting auto close (optional) (MR850 only)
NOTE: The Protector SystemTM MUST be installed
to enable this feature.
Auto close is NOT recommended for
households with young children.
The auto close feature will automatically close the
garage door after the preset time. The time can be
adjusted up to 180 seconds using the trim pot located
on the control board. Auto close can be disabled by
adjusting the trim pot to 0s.
A. Strip wire
(11 mm)
7/16" (11 mm)
Installing and adjusting:
B. Twist like coloured
wires together
• Turn the opener 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 the
two white/black wires together and terminate them
into the grey (3) terminal.
C. To insert or release
wire, push in tab with
screwdriver tip
180s
0s
50s
• Ensure the trim pot on the opener is set to 0s.
• Turn the opener on
Grey
White
Red
Quick-Connect Terminals
• Allow 5 minutes for the beams to self-learn to the
unit, (do not walk through the beam during this time).
• Adjust the trim pot to the desired closing time.
Door may operate unexpectedly, therefore do not allow anything to stay in the path of the door.
9
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INSTALLING YOUR CM128 WIRELESS WALL BUTTON
18
Disconnect power to the opener whilst installing
this accessory to prevent accidental activation.
Locate minimum 1.5m above the floor
To install:
• Carefully pry open the CM128 and locate the two screws for
mounting.
• Attach to the wall using the two screws and wall anchors
provided if mounting to a plaster wall. If using a recessed wall
box do not use anchors.
+
NOTE: Do not overtighten screws.
NOTE: The wall control supplied with your opener 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.
19
WIRELESS PROGRAMING (OPTIONAL ACCESSORIES)
NOTE: Transmitter(s) and wall button supplied with your opener are factory programmed.
Activate the opener only when the door is in full view, free of obstruction and properly adjusted.
No one should enter or leave garage whilst the door is in motion. Do not allow children to operate
push button(s) or transmitter(s). Do not allow children to play near the door.
Fix any wall control at a height of at least 1.5m and within sight of the door but away from any
moving parts.
TO ADD Transmitters / Wireless wall button
NOTE: If adding an installed wall control (CM128)
you will need a second person to press and hold
the desired button. If not installed, program the
wall button into the opener before mounting.
or
ADDING transmitters using the LRN “LEARN”
button
Press and hold down the desired
Button.
• Press and hold down the button you wish to program
to the opener.
LED will FLASH
• The orange LED will flash to indicate it is receiving
signal from the transmitter.
professional
• Press and release the “LRN” button.
• The courtesy LEDs will flash once.
LRN
Press LRN
• Ensure the door is clear of obstruction, then test the
transmitter.
MR850
Release LRN button when
Courtesy LEDs
professional
Deleting ALL transmitter codes
flashes once
NOTE: This deletes all transmitters and codes
TO DELETE ALL REMOTES
• Press and hold the LRN learn button until the orange
professional
indicator light goes out (approximately 9
sec).
LRN
Press LRN for 9 seconds
LED on WILL TURN ON
After 9 seconds all remotes
are deleted and LED will go
out.
10
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KEYLESS DEVICE PROGRAMMING
(OPTIONAL ACCESSORIES )
20
1
professional
Activate the opener only when the door is in
full view, free of obstruction and properly
adjusted. No one should enter or leave
garage whilst the door is in motion. Do not
allow children to operate push button(s) or
transmitter(s). Do not allow children to play
near the door.
2
3
Wireless Keypad C840
Using the “LRN” Button:
1. Press and release the “LRN” button (1) on the opener,
the orange LED will light.
2. Within 30 seconds, enter a four digit personal
identification number (PIN) of your choice on the
keypad (2), then press and hold the ENTER button.
1
2
3. Release the button when the opener courtesy LEDs
flash once (3), the code is learned.
Alternate programming method using the motion
detecting control panel (optional accessory):
T
H
IG
L
K
C
O
L
NOTE: This method requires two people if the
keyless entry is already mounted outside the
garage.
3
4
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.
C
LO
T
H
G
LI
3. Continue holding the ENTER and LIGHT buttons while
you press the push bar on the motion detecting control
panel (all three buttons are held).
professional
4. Release buttons when the opener courtesy LEDs flash
once.
Wireless fingerprint access system C379
Full instructions are available with this accessory.
Once you have enrolled your user into the C379 you
can program the unit into your opener.
Using the “LRN” Button:
1. Press and release the LRN button on the opener, the
orange LED will light.
2. Within 30 seconds, slide the cover of the C379 up as
illustrated (A). Swipe your finger on the reader head
at a steady speed (B) until the yellow led turns on (C).
3. When the courtesy LEDs flash it has learned the
code. Ensure there are no obstacles in the path of the
door, then press the send button (D) to test the door.
11
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21
SPECIAL FEATURES (OPTIONAL ACCESSORIES)
1. Solenoid roller door lock (SRDLK01) - (MR850 only)
2. 24VDC power output for external devices - (MR850 only)
3. Voltage free door monitoring output - (MR850 only)
TM
4. The Protector System IR Beams - C77
5. Motion detecting control panel - C98
6. Standby Power Unit (battery backup C475) - (MR850 only)
7. Tear out cable entries (O16mm)
8. Flashing light FLA24-2ANZ (door not closed indicator only) - (MR850 only)
1
7
2
7
3
5
4
jumper
wire
8
Black
6
Red
12
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22 SPARE PARTS
041A6811
001A6621
If the supply cord is damaged, it must be
replaced by the manufacturer, its service
agent or similarly qualified persons
in order to avoid hazard.
041A6812
041A6813
041D6637 (MR850)
041D6637-1 (MR650)
001A6528
041A6815 (MR850)
041A7282 (MR650)
002B1600
041A6814 (MR850)
041A7292 (MR650)
041A6778 (MR850)
041A6778-1 (MR650)
001B6681
041A6811
041A6812
041A6813
041A6814
041A7292
041D6637
041D6637-1
041A6778
04146778-1
041A6815
041A7282
001A6621
001B6681
001A6528
002B1600
Mount plate sub assembly MR850 (including motor)
Sungear kit
Front upper housing
Base housing MR850
Base housing MR650
PCB for MR850
PCB for MR650
Removable cover sub assembly MR850
Removable cover sub assembly MR650
230V 105VA transformer for MR850
230V 80VA transformer for MR650
Clamp & bolt assembly
Handle & pull rope assembly
Absolute Position Encoder (APE)
Weight Bar
13
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9. Model 760 Outside keyswitch
23 ACCESSORIES
10. Model CM1702 Outside quick release
11. Model C77 The Protector System™ (IR Beams)
12. Model FLA24-2ANZ Flashing light kit - (MR850 only)
13. Model C475 Standby Power Unit (battery backup) -
(MR850 only)
1. Model CM128 2 Channel wireless wall button
2. Model CM844 4 Channel transmitter
3. Model C940 1 Channel transmitter
4. Model C943 3 Channel transmitter
5. Model C945 3 Channel mini transmitter
6. Model C840 Keyless entry system
14. Model SRDLK01 Solenoid roller door lock - (MR850
only)
7. Model C379 Wireless finger print access system
8. Model C98 Motion detecting control panel
6
1
2
3
4
5
L
O
C
K
L
IG
H
T
ENROLL
11
12
SEND
PASS
ENROLL
FAIL
9
7
13
10
14
8
READY
RETRY
24
TYPICAL WIRING DIAGRAM MR850/650
MR850 ONLY
red
white
External
Device
to alarm
panel or
monitoring
device
gnd
24vdc
no
com
Keyswitch or
push button
rx
white/black
white
white/black
white
14
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DIAGNOSTIC CHART
Symptom: One or both of the indicator lights on the IR Beams are not on
steadily.
• Inspect sensor wires for an electrical short (eg. staple in wire), correct wiring
polarity (black/white wires reversed), broken or disconnected wires, replace/attach
as needed.
1 FLASH
IR Beams wire open
(broken or disconnected).
• Disconnect all wires from the opener.
OR
• Remove beams from brackets and shorten sensor wires to 30-60mm (1-2”) from
back each of sensor.
• Re-attach sending eye to opener using shortened wires. If sending eye indicator
light glows steadily, attach the receiving eye.
2 FLASHES
• Align beams. If the indicator lights glow, replace the wires for the beams. If the
sensor indicator lights do not light, replace the IR Beams.
IR Beams wire shorted or
black/white wire reversed.
Symptom: LED is not lit on door control.
• Check polarity of the wire connection to the opener.
3 FLASHES
• Inspect door control/wires for an electrical short (eg. staple in wire), replace as
needed.
• Disconnect wires at door control, touch wires together. If opener activates, replace
door control.
Door control or
wire shorted.
• If opener does not activate, disconnect door control wires from opener. Momentarily
short across red and white terminals with jumper wire. If opener activates, replace
door control wires.
4 FLASHES
Symptom: Sending indicator light glows steadily, receiving indicator light is
dim or flashing.
• Realign receiving eye sensor, clean lens and secure brackets.
IR Beams slightly
misaligned
(dim or flashing LED).
Symptom: The RPM Sensor = Short travel 150-200mm (6-8").
5 FLASHES
• Unplug unit to reset. Try to operate opener, check diagnostic code.
Possible RPM sensor
failure. Unplug to reset.
• If it is still flashing 5 times and opener moves 150-200mm (6-8"), the APE
(Absolute Positioning Encoder) may need to be replaced, for details contact your
Chamberlain Merlin Professional Dealer.
6 FLASHES
Symptom: Door will not open or close
• Turn the power off and remove the Standby Power Unit (SPU) if installed.
• Turn power back on and plug the SPU back in. If opener fails to operate correctly
after resetting, contact your Chamberlain Merlin Professional Dealer
Possible APE error on
start up.
7 FLASHES
Symptom: Door fails to open all the way
• Turn the power off and remove the SPU if installed.
• Turn power back on and plug the SPU back in if installed. If opener fails to
operate correctly after resetting contact your Chamberlain Merlin Professional
Dealer.
Over current
Symptom: Opener will not open or close the door
• Contact your Chamberlain Merlin Professional Dealer.
• Report the number of flashes as the fault reference.
10 to 15 FLASHES
System Failure
15
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• Repeat the limit and force setting in section 13&14.
Repeat safety reverse test after adjustments.
9. The opener strains to operate door:
• The door may be out of balance or the springs may
be broken. Close the door and use the manual
release to disconnect the door. Open and close the
door manually. A properly balanced door will stay in
any point of travel while being supported entirely by
its springs. If it does not, disconnect the opener and
call a trained door systems technician.
TROUBLESHOOTING
1. The opener will not operate from either the
ACTIVATION button or the transmitters :
• Does the opener have electric power? Plug a lamp into
the outlet. If it does not work, check the fuse box.
• Have you disabled all door locks? Review installation
instruction warnings on page 1.
• Is there a build-up of ice or snow under the door? The
door may be frozen to the ground. Remove any
restriction.
10. The opener motor hums briefly, then will not
work:
• The garage door spring may be broken. Have it
replaced.
• Check that the door is not in manual release mode
(refer section 8).
2. Opener operates from the transmitter, but not
from the wired wall control (optional accessory):
• Is the wall control lit? If not, reverse the two wires. If
the opener runs, check for a faulty wire connection at
the wall control, a short under the staples, or a broken
wire.
• Are the wiring connections correct? Refer to wired wall
control instructions.
3. The door operates from the ACTIVATION button
or wired wall control, but not from the wireless
wall control or transmitter:
• The garage door springs may be broken. See above.
• If the problem occurs on the first operation of the
opener, door may be locked. Disable any door locks.
11. The opener will not operate due to power
failure:
• Use the manual release handle to disconnect the
door. The door can be opened and closed manually.
When power is restored, re-engage the opener (refer
section 8).
• If a Standby Power Unit is connected, the opener
should be able to operate up to 20 times without
power.
12. Setting the limits manually:
a. Check that the opener is handed correct (refer
sections 11 and 13).
• If the wired wall control is installed and it is flashing,
ensure the lock feature is off.
• Program the opener to match the transmitter code.
(Refer to section 19). Repeat with all transmitters.
4. The transmitter has short range:
• Change the location of the transmitter in your car.
• Check to be sure the antenna on the bottom of the
opener extends fully downward.
• Some installations may have shorter range due to a
metal door, foil backed insulation, or metal garage
siding.
5. The garage door opens and closes by itself:
• Be sure that all transmitter push buttons are off.
• If the wired wall control (optional accessory) is
installed, remove the bell wire from the wired wall
control terminals and operate from the ACTIVATION
button or transmitter . If this solves the problem, the
wired wall control is faulty (replace), or there is an
intermittent short on the wire between the wired wall
control and the opener.
• Clear memory and re-program all wireless wall
controls and transmitters.
6. The door reverses and stops before opening
completely:
• Is something obstructing the door? Is it out of balance,
or are the springs broken? Remove the obstruction or
repair the door.
7. The door reverses for no apparent reason and
opener lights blink for 5 seconds after reversing:
• Check the Protector SystemTM (IR Beams), if
installed. Correct alignment if the red light on the beam
is solid.
8. The door opens but will not close or reverses
while closing:
• Is something obstructing the door? Pull the manual
release handle. Operate the door manually. If it is
unbalanced or binding, call a trained door systems
technician.
b. Press and hold the LMT button until the orange
indicator light starts flashing slowly then release.
c. Press the LMT button to move the door UP or the
LRN button to move the door DOWN until the door
reaches the desired UP limit. Ensuring there is
enough clearance for your vehicle.
d. Press the ACTIVATION button. This sets the UP limit
and begins closing the door. Immediately press
either the LRN or the LMT button. The door will stop.
Adjust the desired DOWN limit using the LMT and the
LRN buttons. Check to be sure the door is fully
closed without applying excessive pressure to the
door curtain. Press the ACTIVATION button. This sets
the DOWN limit and begins opening the door. NOTE:
If neither the LMT or the LRN button is pressed, the
door will reverse off the floor and the DOWN travel
limit will be set automatically.
e. Open and close the door with the ACTIVATION
button, transmitter or wall control 2 or 3 times.
• If the door does not stop in the desired UP limit or
reverses before the door stops at the DOWN limit,
proceed to Setting the Force (refer section 14).
• If the door still does not stop at the desired limits is
something obstructing the door? Disengage the
opener. Open and close the door manually. If it is
unbalanced or binding, call a trained door systems
technician.
• If the door stops at both the desired UP and DOWN
limits, proceed to Setting the Force.
• Clear any ice or snow from the garage floor area where
the door closes.
16
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OPERATION OF YOUR OPENER
CARE OF YOUR OPENER
When properly installed, your opener will operate
with minimal maintenance. The opener does not
require additional lubrication.
Your opener can be activated by any of the following
devices:
Limit and Force Settings: These settings must be
checked and properly set when the opener is
installed. Weather conditions may cause some
minor changes in the door operation, requiring
some re-adjustments, particularly during the first
year of operation. Refer to limit and force setting in,
sections 13 & 14.
• The ACTIVATION button
Press the button until door starts to move.
• The wall control, outside keyswitch or keyless
entry system (if you have installed any of these
accessories).
Follow the instructions carefully and repeat the
safety reverse test after any adjustment.
• The Transmitter or Wireless Wall
Control (CM128)
Hold the push button down until the door starts to move.
Transmitter: Additional transmitters can be
purchased at any time. Refer to Accessories. Any
new transmitters must be programmed into the
opener.
When the opener is activated by transmitter,
ACTIVATION button or wall control:
Transmitter battery: If transmission range
decreases, replace the battery.
• If open, the door will close. If closed, the door will open.
• If closing, the door will stop.
• If opening, the door will stop (allowing space for entry
and exit of pets and for fresh air).
MAINTENANCE OF YOUR OPENER
• If the door has been stopped in a partially open or
closed position, it will reverse direction.
Once a Month:
• Repeat safety reverse test.
Make any necessary adjustments
(sections 13 & 14).
Obstruction behaviour:
• Manually operate door. If it is unbalanced or
binding, call for professional garage door
service.
• If an obstruction is encountered while closing, the door
will reverse.
• If an obstruction is encountered while opening, the door
will reverse and stop.
• Check to be sure door opens and closes fully.
• The optional Protector System™ uses an invisible beam
which, when broken by an obstruction, causes a closing
door to open and prevents an open door from closing. It
is STRONGLY RECOMMENDED for homeowners with
young children.
SPECIFICATIONS MR850
Input Voltage:
Rated Load:
Max.Pull Force:
Idle Current:
Drive:
230-240VAC, 50Hz, 170W
32Nm
Door should be fully closed if possible.
Weak or broken springs could allow an
open door to fall rapidly. Property damage
or serious personal injury could result.
550N @ O300mm
less than 25mA @ 230VAC
24volt DC gearmotor
permanent lubrication
Opening the door manually:
Max. Drum Rotations:
Memory Registers:
41/
2
64
The door can be opened manually by pulling the
release cord down firmly.
Operating Frequency:
433.92MHz
To re-engage the door, pull the release cord down firmly.
SPECIFICATIONS MR650
The opener light will turn on:
Input Voltage:
Rated Load:
Max.Pull Force:
Idle Current:
Drive:
230-240VAC, 50Hz, 100W
• when opener is initially plugged in;
• when the power is briefly interrupted;
• when the opener is activated.
25Nm
500N @ O300mm
less than 25mA @ 230VAC
(the light turns off automatically after 2-1/2 minutes.)
24volt DC gearmotor
permanent lubrication
Max. Drum Rotations:
Memory Registers:
41/
2
64
Operating Frequency:
433.92MHz
SPECIAL NOTE: Chamberlain strongly recommends that the Protector SystemTM be installed on all garage door openers.
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CHAMBERLAIN LIMITED WARRANTY
Merlin Professional MR850/MR650
Roller Door Opener
Liability – Australia only
Under no circumstances shall the Seller be liable for
consequential, incidental or special damages arising in
connection with the use, or inability to use, the Unit. In no
event shall the Seller's liability for damages or injury arising
from breach of law or contract or for negligence, exceed the
cost of repairing or replacing the Unit or refunding the
purchase price of the Unit.
Chamberlain Australia Pty Limited / Chamberlain New
Zealand Limited (Seller) warrants to the original
purchaser of the Chamberlain Merlin MR850/MR650
Roller Door Opener (Unit) that it is free from defects in
material and/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 on a
domestic door.
Under Division 2 Part V of the Trade Practices Act, 1974,
certain warranties and conditions (Implied Terms) are implied
into contracts for the supply of goods or services if the goods
or services are of a kind ordinarily acquired for personal,
domestic or household use or consumption. Liability for
breach of those Implied Terms cannot be excluded or limited
and the limitations and exclusions above do not apply to the
Implied Terms.
Please retain your proof-of-purchase in the unlikely event
you require warranty service.
If, during the limited warranty period, the Unit fails due to
defects in materials or workmanship Chamberlain will,
provided the defective part or Unit is returned freight and
insurance prepaid and well packaged to the nearest
Chamberlain office or authorised installer, undertake to
repair or, at its option, replace any defective part or Unit and
return it to the Buyer at no cost. Repairs and replacement
parts are warranted for the remaining portion of the original
warranty period.
Except for the Implied Terms and the warranties set out
above, the Seller excludes all warranties and conditions
implied by statute, at law, in fact or otherwise.
Liability – New Zealand only
Except as set out in the Fair Trading Act 1986 and the
Consumer Guarantees Act 1993:
Limited warranty on opener
Chamberlain will furnish a replacement opener free of
charge, if it is found to be defective. Labour costs may apply.
Where the Unit has been installed by an authorised installer,
Chamberlain will furnish replacement parts free of charge
through the authorised installer. A service fee for on-site
service may apply.
(a) all other guarantees, warranties and representations in
relation to the Unit or its supply are excluded to the extent
that the Seller can lawfully exclude them; and
(b) under no circumstances shall the Seller be liable for
consequential, incidental or special damages arising in
connection with the use, or inability to use, the Unit, other
than those which were reasonably foreseeable as liable
to result from the failure.
In-warranty service
During the warranty period, if the product appears as though
it may be defective, call our toll free service before removal
of the unit. A Chamberlain technician will diagnose the
problem and promptly supply you with the parts for “do-it-
yourself” repairs, or provide you with shipping instructions for
a factory repair or replacement. If an authorised installer
installed your Unit you must call them for prompt on-site
service.
NOTE: We request that you attach your sales docket or
invoice to this manual to enable you to establish the date of
purchase in the unlikely event of a service call being made.
Chamberlain reserves the right to change the design and
specification without prior notification. Some features or
accessories may not be available in certain markets or areas.
Please check with your distributor.
If our service centre determines that a warranty claim has
been made in respect of a failure or defect arising out of any
exclusion detailed below, we may charge you a fee to repair
and/or return the Unit to you.
CONTACT DETAILS:
Chamberlain service centres:
Australia
Phone toll free 1800 638 234
Fax toll free 1800 888 121
Exclusions
This warranty does not cover any failure of the Unit due to:
1. non-compliance with the instructions regarding
installation, operation, maintenance and testing of the Unit or
of any product with which the Unit is used.
New Zealand
Auckland phone 09 477 2823
Phone toll free 0800 653 667
Fax toll free 0800 653 663
2. any attempt to repair, dismantle, reinstall or move the
Product to another location once the Product is installed by
any person other than an authorised installer.
3. tampering, 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 for
reinstalling a repaired or replaced Units.
18
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TM
Trademark of The Chamberlain Group, Inc.
® Registered Trademark of The Chamberlain Group, Inc.
© 2009 The Chamberlain Group, Inc
114B3630D
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