Chamberlain LiftMaster Professional RDO800-series Installation And Operating Instructions Manual Download Page 8

7

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 System must
be installed. See section 14.

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

1. Press the purple button (1) twice to enter opener into Force 

Adjustment Mode. The indicator light (2) will flash quickly.

2. Press the green start button (4) on the bottom of the

opener. The door will travel to the DOWN limit. Press the 
green start button (4) again, the door will travel to the 
UP limit. Press the green start button (4) again to
complete the travel cycle. The indicator light (2) will stop 
flashing when the force has been learned.

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
insure that it is balanced properly and is not sticking or
binding.

12

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.

Operate the door in the down direction. The door must

reverse on the obstruction. If the door stops on the obstruction,
remove obstruction and repeat limit and force setting, sections
11 & 12, pages 6 & 7. 

Repeat test.

13

Install the Protector System

((Safety Beams)

Install this accessory for all installations where the
closing force as measured on the bottom of the door is
over 400N (40kgf).

After 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 being caught
under a garage door. 

It uses an invisible 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.

Note: 

The opener will automatically detect the protector

system when it is installed  and operating for 5 minutes
without the beams being obstructed. The opener will not
close unless the sensors are aligned.

14

1

2

1

4

2

(2x)

Summary of Contents for LiftMaster Professional RDO800-series

Page 1: ...ation and operating instructions for rolling door opener Model RDO800 series Chamberlain GmbH Alfred Nobel Strasse 4 66793 Saarwellingen Germany TEL 49 0 6838 907 250 FAX 49 0 6838 907 179 www liftmas...

Page 2: ...the garage door from outside in case of power failure Keep garage door balanced Do not let the garage door opener compensate for a binding or sticking garage door Sticking or binding doors must be re...

Page 3: ...eeds 400N 40kgf Door shaft diameter must not exceed 35mm Prepare Door 4 Disable locks and remove any ropes connected to garage door Complete the following test to ensure your garage door is balanced a...

Page 4: ...nually NOTE To re engage the opener pull the release cord across and up For right hand side installations the wire jumper should be in place factory installed Set Opener Position Left or Right hand En...

Page 5: ...Remove rope if used 11 Plug opener into nearby power point and switch on power point opener lights should now turn on FOR LEFT HAND SIDE INSTALLATIONS 1 Ensure that the opener position jumper wire co...

Page 6: ...re 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 link on the emergency release cable Adjust rope length so the handle is...

Page 7: ...hich the door will stop when moving up or down Follow the steps below to set the limits Check that the opener is engaged To program the travel limits 1 Press and hold the black button 3 until the oran...

Page 8: ...ant 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 Operate t...

Page 9: ...connect terminal and the white wire to the white quick connect terminal 2 The Protector System Safety Beams Connect both white wires to the white quick connect terminal and both white black wires to...

Page 10: ...rce setting in section 11 12 pages 6 7 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...

Page 11: ...g children Allow a 15 minute cooling period after 4 minutes of continuous operation of the opener Opening the Door Manually Door should be fully closed if possible Weak or broken springs could allow a...

Page 12: ...arranty will be the purchaser s sole and exclusive remedy and neither Chamberlain nor its affiliates or distributors shall be liable for any incidental or consequential damages for any express or impl...

Page 13: ...llation and operating instructions for rolling door opener Model RDO800GB Chamberlain GmbH Alfred Nobel Strasse 4 66793 Saarwellingen Germany TEL 49 0 6838 907 250 FAX 49 0 6838 907 179 www liftmaster...

Page 14: ...f the garage door from outside in case of power failure Keep garage door balanced Do not let the garage door opener compensate for a binding or sticking garage door Sticking or binding doors must be r...

Page 15: ...eeds 400N 40kgf Door shaft diameter must not exceed 35mm Prepare Door 4 Disable locks and remove any ropes connected to garage door Complete the following test to ensure your garage door is balanced a...

Page 16: ...rd down until you hear a clicking sound the motor is now ready for operation Note The drive forks may now be positioned into the drum as required For right hand side installations the wire jumper shou...

Page 17: ...Remove rope if used 11 Plug opener into nearby power point and switch on power point opener lights should now turn on FOR LEFT HAND SIDE INSTALLATIONS 1 Ensure that the opener position jumper wire co...

Page 18: ...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 link on the emergency release cable Adjust rope length so the handle is no...

Page 19: ...hich the door will stop when moving up or down Follow the steps below to set the limits Check that the opener is engaged To program the travel limits 1 Press and hold the black button 3 until the oran...

Page 20: ...ant 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 Operate t...

Page 21: ...connect terminal and the white wire to the white quick connect terminal 2 The Protector System Safety Beams Connect both white wires to the white quick connect terminal and both white black wires to t...

Page 22: ...rce setting in section 11 12 pages 6 7 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...

Page 23: ...g children Allow a 15 minute cooling period after 4 minutes of continuous operation of the opener Opening the Door Manually Door should be fully closed if possible Weak or broken springs could allow a...

Page 24: ...ranty will be the purchaser s sole and exclusive remedy and neither Chamberlain nor its affiliates or distributors shall be liable for any incidental or consequential damages for any express or implie...

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