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8

SETTING THE LIMITS FOR RIGHT OR LEFT OPERATION

13

The travel limits regulate the points at which the door will stop when moving UP or DOWN.
The procedure for setting these limits differs depending on which side of the garage door the opener has been
fitted. eg As viewed from inside the garage looking out, is the opener on the right-hand or left-hand side.

The opener must be fully installed on the door and all installation steps completed before proceeding.

NOTE: Remove the limit switch cover screw and open panel (fig1) to
expose the limit actuator arms panel from the right front face of the
opener. Remove the green control panel cover from the left front face of
the opener (see fig1 section 11)

SETTING DOOR TRAVEL LIMITS FOR RIGHT HAND-MOUNTING

Step 1:Inspect the option switches on the control panel. Both switches marked roller should be moved to “R”
position.
Step 2: Set the bottom limit of travel
Connect the mains power to the opener and switch the
power on. Pull the manual release to disengage the
door from the opener. Lower the door manually to the
fully closed position. Observe the red LED marked
close on the control panel. Rotate the front limit-
actuator-arm

anti-clockwise

until

it

contacts

its

microswitch and the red LED stays on continuously.
Step 3: Set the upper limit of travel
Raise the door manually to the fully open position.
Observe the amber LED marked open on the control
panel. Rotate the rear limit-actuator-arm clockwise until
it contacts its microswitch and the amber LED stays on
continuously.
Step 4: Fine adjustment
Although the limits are essentially set in the correct
position, the door travel can be further adjusted using
the fine adjustment screws. Each turn of the screw
results in around 5mm of door travel.
Confirm the limits are set correctly by engaging the
manual release (see section 8), then closing and
opening the door using the green operate button.
Repeat the above steps if required.

The force must now be set in order to complete your installation, see section 14.

SETTING DOOR TRAVEL LIMITS FOR LEFT-HAND MOUNTING

Step 1: Inspect the option switches on the control panel. Both switches marked roller should be moved to “L”.
Step 2 : Set the bottom limit of travel
Connect the mains power to the opener and switch the power on. Pull the manual release to disengage the
door from the opener. Lower the door manually to the fully closed position. Observe the red LED marked close
on the control panel. Rotate the front limit-actuator-arm clockwise until it contacts its microswitch and the red
LED stays on continuously.
Step 3: Set the upper limit of travel
Raise the door manually to the fully open position. Observe the amber LED marked open on the control panel.
Rotate the rear limit-actuator-arm anti-clockwise until it contacts its microswitch and the amber LED stays on
continuously.
Step 4: Fine adjustment
The limits are essentially set in the correct position. However the door travel can be further adjusted using the
fine adjustment screw. Each turn of the screw results in around 5mm of door travel.
Confirm the limits are set correctly by engaging the manual release (see section 8). Close and open the door
using the green operate button. Repeat the above steps if required.

The force must now be set in order to complete your installation, see section 14.

Make sure the door is clear of obstruction. Ensure your hands are away
from any moving parts before activating the door.

Fine Adjustment

Travel limit
actuator arms

Microswitches

fig 1

Summary of Contents for Merlin Professional MR1000

Page 1: ...tallation and Operating Instructions This manual contains IMPORTANT SAFETY information DO NOT PROCEED WITH THE INSTALLATION BEFORE READING THOROUGHLY Owners Copy Please keep these instructions for fut...

Page 2: ...making repairs or removing covers KEEP THESE INSTRUCTIONS WARNING Failure to comply with the following instructions may result in serious personal injury or property damage Read and follow all instruc...

Page 3: ...nd socket wrench 4 12inch socket extension for minimum side room installations 5 Drill and 5 5mm drill bit 6 Phillips head screwdriver 7 Marker pen DOOR REQUIREMENTS 3 The maximum allowable door heigh...

Page 4: ...eight in the centre of the door as shown Use a pencil to mark the two hole positions Drill two 5 5mm holes through the two marked positions then place the weight bar on the inside of the door Use the...

Page 5: ...the opener is installed If it is necessary to cut the rope heat seal the cut end to prevent unravelling refer section 16 7 To disengage the opener Pull the release cord down firmly until the red clut...

Page 6: ...y the safety reversal response and can compromise garage door security To remedy any ballooning place self tapping metal screws or rivets where the curtain leaves the roll Secure these through the cur...

Page 7: ...The opener must be set to either left or right hand operation via the dip switch located under the green activation button Gently pry the flap down and away from the opener using a screw driver or pe...

Page 8: ...Refit the door mounting bracket to the wall and the U bolt to the axle If the door bracket needs to be relocated due to opener width the dimensions in section 3 can assist Position the opener assembly...

Page 9: ...her adjusted using the fine adjustment screws Each turn of the screw results in around 5mm of door travel Confirm the limits are set correctly by engaging the manual release see section 8 then closing...

Page 10: ...t outlined above Install the warning labels provided with your opener Ensure the risk of entrapment label is installed adjacent to the release handle at height of less than 1 8m from the floor The WAR...

Page 11: ...d for homeowners with young children 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 unobstruct...

Page 12: ...wo 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 Turn the opener on Allow 5 minutes for th...

Page 13: ...arning against entrapment label near the wall control see section 16 ADDING transmitters using the learn button Press and hold down the transmitter button you wish to program to the opener The orange...

Page 14: ...rn indicator LED on the opener will light up 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...

Page 15: ...75LM Illuminated door bell push button 8 Model C98 Motion detecting control panel 9 Model C840 Keyless entry system 10 Model C77 The Protector SystemTM 11 Model CM1702 Quick release lock 12 Model 760...

Page 16: ...9004 PCB assy PDR5 9003 Lamp cover CDR1 0958A Chassis cover PDR5 9002 Main drive gear limit assy PDR4 0881 Capacitor 203D1720 Surge arrest 001A7089 Handle pull rope PDR5 0091A Motor assy PDR5 0098 Dri...

Page 17: ...onnection 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 co...

Page 18: ...ittent 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 will stop reverses slightly away from the obst...

Page 19: ...ically after 2 1 2 minutes MAINTENANCE OF YOUR OPENER Once a month Repeat safety reverse test Make any necessary adjustments sections 13 14 Manually operate door If it is unbalanced or binding call fo...

Page 20: ...a period of 2 YEARS from the date of first purchase from the Seller The MR1000 motor only has a 5 year warranty from date of first purchase from the seller when installed on a domestic door Please ret...

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