Merlin MRC950 Installation Manual

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rofessional

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MRC950

MRC950

Light Commercial Rolling 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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IMPORTANT

Chain reduction assemblies that may interfere with the
safe and proper operation of the MRC950 must be
removed.

All hand chains must be removed prior to fitting the
MRC950.

1

CONTENTS PAGE

SAFETY INSTRUCTIONS . . . . . . . .1

CARTON INVENTORY . . . . . . . . . .2

TOOLS REQUIRED . . . . . . . . . . . .2

DOOR REQUIREMENTS . . . . . . . .2

PREPARE & TEST THE DOOR . .3-4

INSTALLATION . . . . . . . . . . . . . .4-5

CONNECT ELECTRIC POWER . . .5

ADJUSTMENT . . . . . . . . . . . . . . .6-7

INSTALL THE PROTECTOR

SYSTEM . . . . . . . . . . . . . . . . . . . . .8

WIRELESS PROGRAMMING . .9-10

SPECIAL FEATURES . . . . . . . . . .11

SPARE PARTS . . . . . . . . . . . . . . .12

ACCESSORIES & WIRING . . . . . .13

DIAGNOSTIC CHART . . . . . . . . . .14

TROUBLESHOOTING . . . . . . . . .15

MAINTAINING YOUR OPENER . .16

CARE OF YOUR OPENER . . . . . 16

OPERATION OF YOUR OPENER 16

SPECIFICATION . . . . . . . . . . . . . .16

WARRANTY . . . . . . . . . . . . . . . . .17

The opener must not be used on a wicket
door (door within a door).

The Protector SystemTMmust be used for all
installations where auto close is required.

After installation, ensure that the parts of the
door do not extend over public footpaths or
roads.

Install the wireless wall button (or any additional
wall control) in a location where the door is

visible, at a height of at least 1.5m and out of
the reach of children. Do not allow children
to operate push button(s) or transmitter(s).

Serious personal injury from a closing door may
result from misuse of the opener.

Permanently fasten the Warning Labels in
prominent places, adjacent to wall controls and

manual release mechanisms as a reminder of
safe operating procedures.

Activate opener only when the door is in full
view, free of obstructions and the opener is
properly adjusted. No one should pass
through the opening while the door is in
motion.

Do not allow children to play near the door,
or multi function door controls.

Disconnect electric power, including
Evercharge

T

M

battery back up unit from the
door opener before making repairs or
removing covers.

KEEP THESE INSTRUCTIONS

Keep door balanced. Do not let the door opener

compensate for a binding or sticking 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 door opener.
Frequently examine the door installation, in

particular cable, springs and mountings for signs of
wear, damage or imbalance. Do not use if repair or
adjustment is needed since springs and hardware
are under extreme tension and a fault can cause
serious personal injury.

To avoid serious personal injury from entanglement,

remove all ropes, chains and locks connected to
the door before installing the door opener.

Installation and wiring must be in compliance with

your local building and electrical codes.

The safety reverse system test is very
important. Your door MUST reverse on contact

with a 40mm obstacle placed on the floor. Failure to
properly adjust the opener may result in serious
personal injury from a closing door. Repeat the

test once a month and make any necessary
adjustments.

This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capablities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning use of the
appliance by a person responsible for their safety.

This opener should not be installed in a damp or
wet space exposed to weather.

START BY READING THESE IMPORTANT SAFETY INSTRUCTIONS

WARNING

•Failuretocomplywiththefollowinginstructionsmayresultinseriouspersonalinjuryorpropertydamage.

• Read and follow all instructions carefully.

•

The door opener is designed and tested to offer safe service provided it is installed and

operated in strict accordance with the instructions in this manual.

These safety alert symbols mean WARNING : A possible risk to personal safety or
property damage exists.

1. Instruction manual (this document)

2. Stop collar

3. Clamp bracket

4. Release handle, cord and risk of entrapment card

5. Transmitters (2)

6. Wireless wall button

7. Hardware bag

8. Clamp plate

9. Warning label and risk of entrapment label

C

ARTON INVENTORY

1

(or workplatform,not shown)

TOOLS REQUIRED

2

1. Ladder or work platform (not shown)

2. Adjustable wrench for U-bolts already installed
on the door

3

. 8mm socket, 10mm socket and 13mm extended

socket and socket wrench

4. 300mm socket extension (for minimum side-room
installations)

5

. Drill and 5.5mm drill bit

6. Philips-head screwdriver

7. Marker pen

8. Hoist or similar device to safely lift & support door
(not shown)

DOOR REQUIREMENTS

3

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.
Different drum and bracket types may result in the minimum side room clearance not being possible, drum
extensions or adaptors may be required. Ensure there is a power point near the opener.

95mm

95mm

Minimum distance from
edge of curtain to edge of
door bracket 45mm

Alternate
clamping method
(Onto Axle only)

Preferred clamping
method
(Direct to Wall
Bracket)

The maximum allowable door height is 5.5m (light commercial door) with a maximum curtain area of 25m² (door
height in metres multiplied by the width in metres). The door must be of continuous corrugated sheet construction,
spring balanced & of a mass not exceeding 250kg. Door axle diameter must not exceed 35mm.

2

T

ESTING 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
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 (20kgF is the absolute maximum

allowable to raise or lower the door in any position).

• If your door does not hold in place or the door binds, sticks
or requires excessive force to move, 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

3

SAFETY CHECK!

Is the stop collar

installed?

YES: proceed to the next

step

NO: install the stop collar

before proceeding

Release cable

Rope

Manual release
warning label

Release handle

Overhand knot

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MRC950

Learn (down)
button

Limit (up)
button

Start / Stop
Activation button

THE RELEASE HANDLE & CORD

• 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.

• 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 handle (when installed) will

be no higher than 1.8m above the floor. Secure with

an overhand knot.

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 13).

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To disengage the opener

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).

Disable all locks and remove any ropes connected to the 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.

O

PERATING THE MANUAL RELEASE

7

LEFT / RIGHT HAND INSTALLATION

8

LEFT
(handing must be
changed during limit
setting, section 10)

RIGHT
(factory
default
setting)

Inside looking out

5

I

NSTALLATION PROCEDURE

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 looking out). For left hand installations,
reverse the instruction terminology (eg LEFT for
RIGHT etc).

Preparation:

• Place the opener in manual release mode (refer
section 7).

• 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.

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.

• Refit the door mounting bracket to the wall. If the
door bracket needs to be relocated due to opener
width, refer section 3 (preferred clamping method).

• 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 using the
alternate clamping method 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 6).

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 10)

• RIGHT OR LEFT HAND OPERATION (Section 10)

• FORCE SETTING (Section 11

)

Door stand

Rope

Door stand

Rope

Tighten to
25-28Nm

9

D

o not allow people to walk under or
around the door during the installation
process as serious injury can occur.

6

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 MRC950 opener is factory configured for right hand installation.

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MT

Press and hold
u

ntil

FLASHING
LED

Drive door UP to
desired height

If required: Use LRN (DOWN)

Activate door

Immediately the door starts to close

Press and hold to drive
door down to closed

If required: Use LMT (UP) to adjust

LMT

LRN

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Activate door to open

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Close the door to test limits

Orange
LED ON &

Courtesy LEDS
on Dim

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Motor will make a click &
FULL BRIGHT courtesy
LEDs will turn on

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MRC950

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R

ight bank

w

ill light up

LMT

LRN

(IF REQUIRED)
To change
p

ress and hold
until correct
bank lights up

&

Left bank
will light up
for Left hand
installation

The opener will operate during this procedure. Make sure the door is clear of obstruction.
E

nsure your hands are away from any moving parts before activating the door.

S

etting right or left hand operation:

• Ensure the door is positioned approximately
halfway or at least 2m from the open position, 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 or left courtesy LEDs will
light up.

• 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 the incorrect bank of LEDs is illuminated,
simply press both LRN and LMT buttons
simultaneously until opposite bank lights up.

Setting the open limit:

• 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.

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.

• Press and release the ACTIVATION button, this
sets the DOWN position and begins opening the
door to the fully open position.

Test the door:

• Close and open the door 2 or 3 times using the
ACTIVATION button to confirm the limit settings.

• If the door does not complete the test cycle
proceed to section 11 to set the force.

• Leave the door in the up position.

NOTE: The force must now be set in order to

complete your installation (refer section 11).

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T

he force, as measured on the closing edge of the door,
should not exceed 600N (60kgf). If the closing force is
measured to more than 600N, a safety reversing edge or
similar device must be used.

•

Press the LRN button twice to place the opener into
f

orce adjustment mode. The indicator LED will flash

q

uickly.

• 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.

NOTE: The courtesy LEDs will go out after 2.5 min.

• 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.

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x 2

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LRN

Press twice

F

LASHING

orange LED

Activate

Wait: Door closed

A

ctivate

Wait: Door open

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Orange LED
will go out

Note: Courtesy LEDs will go out after 2.5 minutes

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.
If required, use an eye bolt or hook (not included) to

guide the release handle rope.
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 6.

Read the safety instructions (page 1) for further details
concerning safety.

11

FIXING WARNING LABELS

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 10 and 11).

Repeat test of the safety reverse system.

12

4

0mm Test obstacle

40mm

13

TESTING THE SAFETY REVERSE SYSTEM

The safety reverse system test is important.
The 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 door.

SETTING THE FORCE

STANDARD INSTALLATION COMPLETE

8

NOTE: This accessory must be used for all
installations where timer-to-close is enabled.

After the opener has been installed and adjusted, the
Protector System™ accessory can be installed.
Instructions are included with this accessory.

The Protector System™ provides an additional
measure of safety against a small child or animal
b

eing trapped under a 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

applications where young children may be
present.

Setting Timer-To-Close (optional)

NOTE: The Protector SystemTMMUST be installed
to enable this feature.

The timer-to-close feature will automatically close the
door after the preset time. The time can be adjusted up
to 180 seconds using the trim pot located on the
control board. timer-to-close can be disabled by
adjusting the trim pot to 0s.

Installing and adjusting:

• Turn the opener off

• Install the Protector SystemTMusing 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.

• Ensure the trim pot on the opener is set to 0s.

• Turn the opener on

• Allow 5 minutes for the beams to self-learn to the
unit, (do not walk through the beam during this time).

• Ensure the door is in the closed position, then adjust
the trim pot to the desired closing time.

0s

180s

50s

Quick-Connect Terminals

C. Toinsert orrelease

wire, pushin tabwith
screwdriver tip

A. Strip wire

(11mm)

B. Twist like coloured

wires together

Red

Grey

White

7

/16" (11mm)

Red LED
MUST BE ON

Red LED
MUST BE ON

IR Beam

IR Beam

I

R Beams must be installed

to detect a 100mm high

obstacle at any point along

the floor.

14

SAFETY FIRST!

Whilst Chamberlain have engineered safety features into your door opener, we urge you to consider fitting IR
Beams to your new 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.

Door may operate unexpectedly, therefore do not allow anything to stay in the path of the door.

INSTALL THE PROTECTOR SYSTEM™ (IR BEAMS) OPTIONAL ACCESSORY

Timer-To-Close is NOT recommended for
applications where young children may
be present.

Do not adjust the trim pot whilst the door is
in the open position.

Door will activate when the trim pot is
adjusted in the open position

WIRELESS PROGRAMING (OPTIONAL ACCESSORIES)

NOTE: Transmitter(s) and wall button supplied with your opener are factory programmed.

INSTALLING YOUR CM128 WIRELESS WALL BUTTON

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.

+

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9

Disconnect power to the opener whilst installing
this accessory to prevent accidental activation.
Locate minimum 1.5m above the floor

Activate the opener only when the door is in full view, free of obstruction and properly adjusted.
No one should enter or leave 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.

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

16.

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LRN

Press LRN

or

LED will FLASH

TO ADD Transmitters / Wireless wall button

Press and hold down the desired
Button.

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LRN

Press LRN for 9 seconds

TO DELETE ALL REMOTES

LED on WILL TURN ON

After 9 seconds all remotes
are deleted and LED will go
out.

Release LRN button when
Courtesy LEDs
flashes once

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MRC950

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.

ADDING transmitters using the LRN “LEARN”
button

• Press and hold down the button you wish to program
to the opener.

• The orange LED will flash to indicate it is receiving
signal from the transmitter.

• Press and release the “LRN” button.

• The courtesy LEDs will flash once.

• Ensure the door is clear of obstruction, then test the

transmitter.

Deleting ALL transmitter codes
NOTE: This deletes all transmitters and codes

• Press and hold the LRN learn button until the orange

indicator light goes out (approximately 9

sec).

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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.

KEYLESS DEVICE PROGRAMMING
(

OPTIONAL ACCESSORIES )

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.

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):

NOTE: This method requires two people if the
keyless entry is already mounted outside.

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.Continueholding the ENTER and LIGHT buttons while
you press the push bar on the motion detecting control
panel (all three buttons are held).

4.Releasebuttons when the opener courtesy LEDs flash
once.

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MRC950

Activate the opener only when the door is in
full view, free of obstruction and properly
a

djusted. No one should enter or leave
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.

7

8

Black

Red

jumper

wire

3

2

5

6

4

1

7

11

MOUNTING THE EVERCHARGE STANDBY POWER UNIT (SPU) (OPTIONAL ACCESSORY 6)

• The SPU can be mounted to either the ceiling or a wall within .9 m (3') of the opener.

• Position the SPU as desired to a structural support (ceiling joist or wall stud).

• Attach the SPU to the support using the mounting holes on either side of the SPU.

• Secure the SPU using the 1-1/2" lag screws (2) provided with the SPU unit.

• Connect the SPU cord into the connector on the bottom of the opener.

• Follow all instructions included with the CM475 unit to test for proper operation and testing of the SPU.

SPECIAL FEATURES (OPTIONAL ACCESSORIES)

1. Solenoid roller door lock (SRDLK01)

2. 24VDC power output for external devices
3

. Voltage free door monitoring output

4. The Protector System

TM

IR Beams - C77

5. Motion detecting control panel - C98

6. Standby Power Unit (battery backup CM475)
7

. Tear out cable entries (∅16mm)

8. Flashing light FLA24-2ANZ (door not closed indicator only)

1

8

I

f the wire supplied with the
solonoid roller door lock (1)
i

s not long enough, the cable

w

ill need to be extended

u

sing a 2 pair wire of an
equivalent size. Ensure that
the wire polarity is matched
a

nd connections are secure
a

nd insulated.

12

If the supplycord isdamaged, it mustbe
replaced by themanufacturer, itsservice
agent or similarlyqualified persons
in order toavoid hazard.

001A6621

0

41A6811-1

0

41B0603

001A6528

0

41A6815

041A6814-1

001B6451-3S

041A6778-2

0

41D6637

0

41B0029

19

SPARE PARTS

041A6811-1 Mount plate sub assembly (including motor)
041B0029 Sungear kit - Aluminium
041B0603 Front upper housing
041A6814-1 Base housing
041D6637 Service logic board
041A6778-2 Removable cover sub assembly
041A6815 230V 105VA transformer
001A6621 Clamp & bolt assembly
001B6451-3S Handle & pull rope assembly
001A6528 Absolute Position Encoder (APE)

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7

ENROLL

FAIL

RETRY

SEND

PASS

READY

ENROLL

ACCESSORIES

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

7. Model C379 Wireless finger print access system

8. Model C98 Motion detecting control panel

9. Model 760 Outside keyswitch

1

0. Model CM1702 Outside quick release

11. Model C77 The Protector System™ (IR Beams)

12. Model FLA24-2ANZ Flashing light kit

13. Model C475 Standby Power Unit (battery backup)

14. Model SRDLK01 Solenoid roller door lock

20

red
white

white/black
white

white/black
white

to alarm panel
or monitoring
device

gnd
24vdc

External
Device

Keyswitch or
push button

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no

TYPICAL WIRING DIAGRAM MRC950

21

14

DIAGNOSTIC CHART

Symptom: One or both of the indicator lights on the IR Beams are not on
s

teadily.

• 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.

• Disconnect all wires from the opener.

• 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.

• 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.

Symptom: LED is not lit on door control.

• Check polarity of the wire connection to the opener.

• 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.

• 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.

Symptom: Sending indicator light glows steadily, receiving indicator light is
dim 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 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.

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

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.

Symptom: Opener will not open or close the door

• Contact your Chamberlain Merlin Professional Dealer.

• Report the number of flashes as the fault reference.

Possible APE error on
start up.

Possible RPM sensor
failure. Unplug to reset.

IR Beams slightly
misaligned
(dim or flashing LED).

Door control or
wire shorted.

IR Beams wire shorted or
black/white wire reversed.

IR Beams wire open
(broken or disconnected).

1 FLASH

2 FLASHES

3 FLASHES

4 FLASHES

5 FLASHES

6 FLASHES

OR

System Failure

Over current

7 FLASHES

10 to 15 FLASHES

T

ROUBLESHOOTING

1. The opener will not operate from either the
A

CTIVATION button or the transmitters :

• Does the opener have electric power? Plug a lamp into

t

he 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
r

estriction.

• The door spring may be broken. Have it

replaced.

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:

• 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 15). 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 siding.

5. The 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 System

TM

(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.

• Clear any ice or snow from the floor area where

the door closes.

•

Repeat the limit and force setting in section 10&11.

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
r

elease 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.

1

0. The opener motor hums briefly, then will not
work:

• Check that the door is not in manual release mode
(refer section 7).

• The 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 7).

• 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 8 and 10).

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 11).

• 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.

15

OPERATION OF YOUR OPENER

Y

our opener can be activated by any of the following

devices:

• 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

a

ccessories).

• The Transmitter or Wireless Wall

Control (CM128)

Hold the push button down until the door starts to move.

When the opener is activated by transmitter,
ACTIVATION button or wall control:

• 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).

• If the door has been stopped in a partially open or
closed position, it will reverse direction.

Obstruction behaviour:

• If an obstruction is encountered while closing, the door
will reverse.

• If an obstruction is encountered while opening, the door
will reverse and stop.

• 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 applications where
young children may be present.

Opening the door manually:

The door can be opened manually by pulling the
release cord down firmly.
To re-engage the door, pull the release cord down firmly.

The opener light will turn on:

• when opener is initially plugged in;

• when the power is briefly interrupted;

• when the opener is activated.
(the light turns off automatically after 2-1/2 minutes.)

MAINTENANCE OF YOUR OPENER

Once a Month:

• Manually operate door. If it is unbalanced or
binding, call for professional door service.

• Check to be sure door opens and closes fully.
Set limits and/or force if necessary.

• Every 6 months retension the opener clamp
bolts, refer to Section 9.

SPECIAL NOTE: Chamberlain strongly recommends that the Protector SystemTMbe installed on all door openers.

CARE OF YOUR OPENER

When properly installed, your opener will operate
with minimal maintenance. The opener does not
r

equire additional lubrication.

Limit and Force Settings: These settings must be
checked and properly set when the opener is
installed. Weather conditions may cause some
m

inor changes in the door operation, requiring

some re-adjustments, particularly during the first
year of operation. Refer to limit and force setting in,
sections 10 & 11.

F

ollow the instructions carefully and repeat the

safety reverse test after any adjustment.

Transmitter: Additional transmitters can be
purchased at any time. Refer to Accessories. Any
new transmitters must be programmed into the
opener.

Transmitter battery: If transmission range
decreases, replace the battery.

SPECIFICATIONS MRC950

Input Voltage: 230-240VAC, 50Hz, 110W
Rated Load: 40Nm
Max.Pull Force: 1300N @ O300mm
Idle Current: less than 25mA @ 230VAC
Drive: 24volt DC gearmotor

permanent lubrication

Max. Drum Rotations: 4

1/

2

Memory Registers: 64
Operating Frequency: 433.92MHz

16

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.

17

CHAMBERLAIN LIMITED WARRANTY
Merlin Professional MRC950
Roller Garage Door Opener

Chamberlain Australia Pty Limited / Chamberlain New Zealand Limited
(Chamberlain), the manufacturer of Merlin®automatic garage door openers,
is committed to manufacturing and supplying high quality goods. As part of
this commitment, we seek to provide reliable service and support for our
goods and are pleased to provide you, the original purchaser, with this
Chamberlain Limited Warranty.

We also provide the following statement as required by the Australian
Consumer Law: InAustralia, in addition to your rights under this
Chamberlain Limited Warranty, our goods come with guarantees that cannot
be excluded under the Australian Consumer Law. You are entitled to a
replacement or refund for a major failure and for compensation for any other
reasonably foreseeable loss or damage. You are also entitled to have the
goods repaired or replaced if the goods fail to be of acceptable quality and
the failure does not amount to a major failure.

Chamberlain’s warranty

Chamberlain warrants to the original purchaser of the following Merlin

®

Roller Door Openers:
Merlin

®

MRC950 Roller Door Opener (Unit) that all parts of the Unit, other
than remote controlled transmitters and accessories, globes and batteries,
are free from defects in materials and workmanship for a period of 24 months
or 5,000 cycles (opening & closing of the garage door) whichever comes
first, from the date of purchase when installed in a residential premise with a
residential specified garage door that is designed for the sole purpose of
domestic domicile or a light commercial premise fitted with a continuous
sheet roller door.

Chamberlain warrants that remote controlled transmitters and accessories
included with the Unit are free from defects in materials and workmanship for
a period of 12 months from the date of purchase.

Batteries and globes are not covered under the Chamberlain Limited
Warranty.

It is a condition of this Chamberlain Limited Warranty that the Unit is sold,
installed and serviced by a Professional Dealer appointed by Chamberlain. A
Merlin

®

branded garage door opener purchased over the internet and
installed by a person other than a Professional Dealer will not be covered by
this Chamberlain Limited Warranty.

It is also a condition of this warranty that the garage door is operable by
hand and opens and closes with no more than a maximum of 20kgs of lifting
weight. Chamberlain recommends that the garage door is serviced by a
garage door technician every 12 months. This garage door service fee will be
at the consumer’s expense.

NB: The Australian Garage Door Association directs attention to consumers
to maintain your garage door in good running order it is important your door
is serviced by a professional garage door technician every 12 months or
earlier as conditions may require.

During the applicable Chamberlain Limited Warranty period, if you are
concerned that the Unit may be defective, for prompt on-site service call the
Professional Dealer that sold/installed the opener, or our service centre on
the toll free number below and a Chamberlain technician will diagnose the
problem and arrange for this to be rectified. Once the problem has been
diagnosed, subject to your rights under the Australian Consumer Law with
respect to major failures, Chamberlain or its Professional Dealer will provide
you with:

1. repairs to the Unit

or

2. a replacement Unit.
Repairs and replacement parts provided under this Chamberlain Limited

Warranty are provided free of charge and are warranted for the remaining
portion of the original warranty period.

This Chamberlain Limited Warranty provides benefits which are in addition to
your other rights and remedies as a consumer.

Exclusions

If our service centre determines that a warranty claim has been made in
respect of a failure or defect arising under or out of any exclusion detailed
below such that the claim is not covered under this Chamberlain Limited
Warranty, we may, subject to your other rights and remedies as a consumer,
charge you a fee to repair, replace and/or return the Unit to you.

This Chamberlain Limited Warranty does not cover any failure of, or defect
in, 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;
2 any attempt by a person other than a Professional Dealer to repair,
dismantle, reinstall or move the Unit to another location once it has been
installed;
3 tampering, neglect, abuse, wear and tear, accident, electrical storm,
excessive use or conditions other than normal domestic use;
4 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;
5 problems caused by electrical faults or replacement of batteries or light
bulbs;
6 water or moisture ingress that causes corrosion or electrical malfunction;
7 corrosion caused by sea air if located near a waterway, beach etc; or
8 use of sungear extension poles are used.

NB: A General Purpose Outlet (GPO) ie: power point must be supplied by the
consumer as this electrical fitting does not form a part of the Unit (opener).

If this Chamberlain Limited Warranty does not apply, you may have rights
available to you under the Australian Consumer Law.

Liability – Australia only

Except as set out in the Australian Consumer Law (being Schedule 2 of the
Competition and Consumer Act 2010) (as amended, consolidated or
replaced):
1 all other guarantees, warranties and representations in relation to the Unit
or its supply are excluded to the extent that Chamberlain can lawfully exclude
them; and
2 under no circumstances will Chamberlain 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.

Liability – New Zealand only

Except as set out in the Fair Trading Act 1986 and the Consumer Guarantees
Act 1993 (as amended, consolidated or replaced):
1 all other guarantees, warranties and representations in relation to the Unit
or its supply are excluded to the extent that Chamberlain can lawfully exclude
them; and
2 under no circumstances will Chamberlain 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.

Note

We request that you retain your sales docket or invoice as proof-of-purchase
and attach it to this manual to enable you to establish the date of purchase in
the unlikely event of a warranty service being required. Chamberlain
reserves the right to change the design and specifications of the Unit without
prior notification. Some features or accessories of the Unit may not be
available in certain markets or areas. Please check with your distributor.

Chamberlain service centre contact details

Australia

Phone toll free 1800 638 234
Fax toll free 1800 888 121
Chamberlain Australia Pty. Ltd.
PO BOX 1446
Lane Cove NSW 1595

New Zealand

Auckland phone [phone]
Phone toll free 0800 653 667
Fax toll free 0800 653 663

Email: [e-mail]
Website: www.merlingo.com

114A4200F

© 2011 The Chamberlain Group, Inc

TM

Trademark of The Chamberlain Group, Inc.

® Registered Trademark of The Chamberlain Group, Inc.