Chamberlain Merlin MT800 Installation And Operating Instructions Manual Download Page 10

ADJUSTMENT SECTION

Travel limits regulate the points at which the door will stop
when moving up or down. Follow the steps below to set the
limits.

NOTE: The door must be in the mid or closed position to
begin setting the limits.

TURN POWER ON (The courtesy light will turn on).

Setting the limits :

1. Press and hold the black button (1) until the yellow indicator

light (3) starts flashing slowly then release.

2. Adjust the position of the door to the desired up position by

using the black button. Black moves the door UP (open) and
orange (2) moves the door DOWN (close). Check to be sure
the door opens high enough for your vehicle.

3. Push the remote control (4) or door control. This sets the UP

(open) limit and begins closing the door.
Immediately press either the orange or the black button. The
door will stop.

Adjust the desired DOWN (close) limit position using the

black and orange buttons. Check to be sure the door is fully
closed without applying excessive pressure on the rail (rail
should not bow upwards and the chain/belt should not sag or
droop below the rail). Push the remote control or door
control. This sets the DOWN (close) limit and begins
opening the door.

4. Open and close the door with the remote control or door

control 2 or 3 times. Leave door in the open position ready
for force setting.

NOTE: The force must now be set in order to complete
your installation (refer section 23).

22

The force, as measured on the closing edge of the
door, should not exceed 400N (40kg). If the closing
force is measured to more than 400N, the Protector
System

TM

(IR Beams) must be installed (refer section

26).

The force setting regulates the amount of power
required to open and close the door.

1. Locate the orange button (2).
2. Push the orange button (2) twice to enter unit into force

adjustment mode. The LED (3) (indicator light) will flash
quickly.

3. Push the programmed remote control (1) that was

shipped with your opener. The door will travel to the
DOWN (close) position. Push the remote control (1)
again, the door will travel to the UP (open) position.

The LED (3) (indicator light) will stop flashing when the
force has been learned.
The door must travel through a complete cycle, UP and
DOWN, to ensure the force is set correctly. If the unit
cannot open and close your door fully, inspect your door to
ensure that it is balanced properly and is not sticking or
binding.

23

9

SETTING THE LIMITS

SETTING THE FORCE

Summary of Contents for Merlin MT800

Page 1: ...re reference www chamberlainanz com MT800 Sectional and Tilt Garage Door Opener Installation and Operating Instructions This manual contains IMPORTANT SAFETY information DO NOT PROCEED WITH THE INSTAL...

Page 2: ...ng covers KEEP THESE INSTRUCTIONS Warning If your garage has no service entrance door a CM1702 outside quick release must be installed This accessory allows manual operation of the garage door from ou...

Page 3: ...Hex nut 14 Ring fastener 15 Hex bolt 16 Lock nut 17 Metric tapping screw 18 Hex screw 10 7 3 4 5 6 12 13 8 NOTICE 11 15 14 17 18 1 2x 16 9 2 2x 2x 2x 2x 2x 1x 1x 1x 4x 2x 4x 4x 5x 5x 3x 2x 2x 2 1 11mm...

Page 4: ...binding or sticking If your door binds sticks or is out of balance call a trained door systems technician 1 Header sleeve 2 Idler pulley bracket 3 Trolley 4 Rail 5 Chain belt 6 Hanging bracket 7 Powe...

Page 5: ...drive sprocket and replace it with the belt drive sprocket supplied with your rail assembly Holding chain 4 or belt 5 out of the way slide rail 1 onto shim 2 until rail is secure Take the chain belt a...

Page 6: ...cal centre line 2 onto the ceiling Centre the header bracket 1 on the vertical mark no more than 150mm 6 from the wall Make sure the arrow is pointing toward the opener Mark all of the header bracket...

Page 7: ...l bracket not supplied 4 to a structural support before installing the opener For concrete ceiling mount Figure C use concrete anchors provided On each side of opener measure the distance from the ope...

Page 8: ...e bars 3 as shown Close the lens by gently squeezing the upper corners and inserting the tabs 4 into slots on the cover 5 To change bulb squeeze the upper corners of the lens to disengage tabs The len...

Page 9: ...d wire to RED terminal screw 1 and the white wire to WHT terminal screw 2 Fasten the door control to an inside garage wall with sheet metal screws 3 provided Drill 4mm 5 32 holes and use anchors if in...

Page 10: ...control This sets the DOWN close limit and begins opening the door 4 Open and close the door with the remote control or door control 2 or 3 times Leave door in the open position ready for force setti...

Page 11: ...e light flashes about 10 seconds A single flash indicates that the timer is reset to 1 1 2 minutes Repeat the procedure and the light will flash twice resetting the timer to 2 1 2 minutes Repeat again...

Page 12: ...compulsory to assist in the prevention of serious injury or property damage For your own peace of mind and the safety of others please install this inexpensive safety device 26 132B2366 50 s 180 s O...

Page 13: ...ress and hold the button on the hand held remote that you wish to operate your garage door 2 While holding the remote button press and hold the LIGHT button on the motion detecting control panel 3 Con...

Page 14: ...orange learn button 1 on opener The learn indicator light will glow steadily for 30 seconds 2 Within 30 seconds enter a four digit personal identification number PIN of your choice on the keypad 2 th...

Page 15: ...Grey 4 Door control panel To opener terminals Red 1 and White 2 31 6 4 1 7 2 11 12 3 LOCK LIGHT 5 CM842 C840 CM128 C98 760E CM1702 C77 C940 C943 C945 8 9 10 CM844 13 ENROLL FAIL RETRY SEND PASS READY...

Page 16: ...028 031D0525 041A5801 2 3m 041A5801 2 2 5m 041A5801 3 3 0m 031D0537 041A5844 2 3m 041A5844 1 2 5m 041A5844 2 3 0m 041B4494 1 8423CR3 8430CR3 8023CR3 8025CR3 8030CR3 7017CR3 7023CR3 7030CR3 7035CR3 041...

Page 17: ...r board 041B5351 5 light socket 041C5392 block terminal 041B4375 3 sprocket cover belt 041A4371 3 chain 041A4371 2 belt pulley cover 041A5845 transformer 041C5350 8 026B0072 power cord chassis cover 0...

Page 18: ...e light is flashing correct the alignment If opener light does not flash and it is a new installation repeat setting the limit and force sections 22 and 23 Repeat the safety reverse test after the adj...

Page 19: ...es a closing door to open and prevents an open door from closing It is STRONGLY RECOMMENDED for homeowners with young children Allow a 15 minute cooling period after 5 continuous operations of the ope...

Page 20: ...YEARS from the date of first purchase from the Seller The DC motor only has a 5 year warranty from the date of first purchase from the Seller when installed on a domestic door Please retain your proo...

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