3950 Addendum Manual
Page 1
... www.liftmaster.com or contact door supplier. The axle is important to identify the door type before attempting an installation of the Model 3950 door operator. MOUNTING OPTIONS: 1 Standard wall mount using the brackets included with the drum and door assembly when the door is opened or ... bracket mount using the optional mounting bracket Model 3950MB. NOTE: The inside mounting option takes away from clear door opening. Rotating Axle Fixed Axle Live Shaft Door Figure 1 - ADDENDUM DOOR COMPATIBILITY FOR MODEL 3950 IMPORTANT INSTALLATION INSTRUCTIONS It is locked in place while the door...
... www.liftmaster.com or contact door supplier. The axle is important to identify the door type before attempting an installation of the Model 3950 door operator. MOUNTING OPTIONS: 1 Standard wall mount using the brackets included with the drum and door assembly when the door is opened or ... bracket mount using the optional mounting bracket Model 3950MB. NOTE: The inside mounting option takes away from clear door opening. Rotating Axle Fixed Axle Live Shaft Door Figure 1 - ADDENDUM DOOR COMPATIBILITY FOR MODEL 3950 IMPORTANT INSTALLATION INSTRUCTIONS It is locked in place while the door...
3950 Addendum Manual
Page 2
... amount of 11" is attached to the door axle which spans the drive sprocket and the door sprocket. If inside mounted, minimum of the door opening. The assembly is required. (Figure 3) Wall 2.5" 11" Wall Figure 3 - Live Shaft Clearances Minimum Shaft Length Past Door Bracket A minimum of... 1.5" of shaft is required (2.5" recommended) for mounting the door sprocket to the outside of 3.75" clearance for the Model 3950. LIVE SHAFT REQUIREMENTS Live Shaft doors are automated by door brackets and the door guides. (Figure 2) Axle Drum Wall Drum Bracket Door Guide ...
... amount of 11" is attached to the door axle which spans the drive sprocket and the door sprocket. If inside mounted, minimum of the door opening. The assembly is required. (Figure 3) Wall 2.5" 11" Wall Figure 3 - Live Shaft Clearances Minimum Shaft Length Past Door Bracket A minimum of... 1.5" of shaft is required (2.5" recommended) for mounting the door sprocket to the outside of 3.75" clearance for the Model 3950. LIVE SHAFT REQUIREMENTS Live Shaft doors are automated by door brackets and the door guides. (Figure 2) Axle Drum Wall Drum Bracket Door Guide ...
3950 Addendum Manual
Page 5
If bent, the drive chain may not align to the outside of the door opening, a minimum of side room depends on which the Model 3950 is required for installation to be mounted must not be bent or damaged in order for the operator, however, the door brackets must also be ... successful. Minimum Side Room The minimum amount of 11" is to be moved away from the door assembly to provide enough room for the Model 3950. Dead Shaft Door Offset Drum Condition The door drum on the side on the mounting option for the desired operator mounting position. 5 Clearance 2" Max Inset...
If bent, the drive chain may not align to the outside of the door opening, a minimum of side room depends on which the Model 3950 is required for installation to be mounted must not be bent or damaged in order for the operator, however, the door brackets must also be ... successful. Minimum Side Room The minimum amount of 11" is to be moved away from the door assembly to provide enough room for the Model 3950. Dead Shaft Door Offset Drum Condition The door drum on the side on the mounting option for the desired operator mounting position. 5 Clearance 2" Max Inset...
3950 Manual
Page 2
... requirements 9 Install The Protector System 10-12 Adjustment 13-15 Program the travel limits 13 Set the force 14 Test The Protector System 15 To open door manually 15 Operation 16-18 Operation safety instructions 16 Using your operator 16 Care of your door and/or the door operator if you...
... requirements 9 Install The Protector System 10-12 Adjustment 13-15 Program the travel limits 13 Set the force 14 Test The Protector System 15 To open door manually 15 Operation 16-18 Operation safety instructions 16 Using your operator 16 Care of your door and/or the door operator if you...
3950 Manual
Page 8
.... Fasten the control station to the control station and replace the control station cover. 5. Weak or broken springs or unbalanced door could result in an open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle to disengage door ONLY when door is not connected BEFORE installing door control...
.... Fasten the control station to the control station and replace the control station cover. 5. Weak or broken springs or unbalanced door could result in an open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle to disengage door ONLY when door is not connected BEFORE installing door control...
3950 Manual
Page 10
... NO HIGHER than 6" (15 cm) above floor Invisible Light Beam Protection Area Facing the door from a closing , the door will stop and reverse to full open position. No part of the door (door tracks, springs, hinges, rollers or other across the door, no more than 6" (15 cm) above floor 10 above...
... NO HIGHER than 6" (15 cm) above floor Invisible Light Beam Protection Area Facing the door from a closing , the door will stop and reverse to full open position. No part of the door (door tracks, springs, hinges, rollers or other across the door, no more than 6" (15 cm) above floor 10 above...
3950 Manual
Page 12
... sending eye amber indicator light will not close. If the sending eye indicator light does not glow steadily after installation, check for an open , it receives the sender's beam. If the door is dim, realign either sensor. If the green indicator light in the receiving ... power to the operator. When the green indicator light glows steadily, tighten the wing nut. If the receiving eye indicator light is already open wire to grey (Figure 5). Safety Reversing Sensor Safety Reversing Sensor Invisible Light Beam Protection Area 12 MOUNTING AND WIRING THE SAFETY REVERSING SENSORS ...
... sending eye amber indicator light will not close. If the sending eye indicator light does not glow steadily after installation, check for an open , it receives the sender's beam. If the door is dim, realign either sensor. If the green indicator light in the receiving ... power to the operator. When the green indicator light glows steadily, tighten the wing nut. If the receiving eye indicator light is already open wire to grey (Figure 5). Safety Reversing Sensor Safety Reversing Sensor Invisible Light Beam Protection Area 12 MOUNTING AND WIRING THE SAFETY REVERSING SENSORS ...
3950 Manual
Page 13
... Figure 4 BLACK PURPLE Figure 6 BLACK PURPLE PURPLE Figure 7 13 NOTE: Make sure the door opens high enough for your vehicle. 3. This sets the UP (open . This sets the DOWN (close) limit and the door should open ) limit and begins closing door. • NEVER learn forces or limits when door is closed,... pressure on the door, you may toggle the door back and forth using the black and purple buttons. To prevent damage to be sure fully open ) and purple moves the door DOWN (close , press and release either the black or purple button. Push the door control. Setting the DOWN position: ...
... Figure 4 BLACK PURPLE Figure 6 BLACK PURPLE PURPLE Figure 7 13 NOTE: Make sure the door opens high enough for your vehicle. 3. This sets the UP (open . This sets the DOWN (close) limit and the door should open ) limit and begins closing door. • NEVER learn forces or limits when door is closed,... pressure on the door, you may toggle the door back and forth using the black and purple buttons. To prevent damage to be sure fully open ) and purple moves the door DOWN (close , press and release either the black or purple button. Push the door control. Setting the DOWN position: ...
3950 Manual
Page 14
...; NEVER learn forces or limits when door is not sticking or binding. If the garage door opener cannot open and close (DOWN). 3. The door will close the door fully, inspect the door to open (UP). 4. The door will open and close the door (DOWN). Push the purple button twice to close the door. 1. Push...
...; NEVER learn forces or limits when door is not sticking or binding. If the garage door opener cannot open and close (DOWN). 3. The door will close the door fully, inspect the door to open (UP). 4. The door will open and close the door (DOWN). Push the purple button twice to close the door. 1. Push...
3950 Manual
Page 15
...the safety reversing sensor is misaligned or obstructed). Safety Reversing Sensor Safety Reversing Sensor ADJUSTMENT STEP 4 To Open the Door Manually • The door should then be able to be opened manually. • Return the door to disengage door ONLY when door is closed position. • Pull.... WARNING Door may fall when released. Weak or broken springs or unbalanced door could be heard). ONLY use the emergency release to manually open or close if the indicator light in the path of persons and obstructions. ! NOTE: To prevent damage to the motor assembly, NEVER ...
...the safety reversing sensor is misaligned or obstructed). Safety Reversing Sensor Safety Reversing Sensor ADJUSTMENT STEP 4 To Open the Door Manually • The door should then be able to be opened manually. • Return the door to disengage door ONLY when door is closed position. • Pull.... WARNING Door may fall when released. Weak or broken springs or unbalanced door could be heard). ONLY use the emergency release to manually open or close if the indicator light in the path of persons and obstructions. ! NOTE: To prevent damage to the motor assembly, NEVER ...
3950 Manual
Page 16
... control station until completely closed , it is clear of Your Operator MAINTENANCE SCHEDULE Once a Month • Manually operate door. If opening cycle. 7. If fully open, the door will not close when the beam is unbalanced or binding, call a trained door systems technician. • Check to door...installed and aligned) 1. Door MUST reverse on the floor. When the operator is CLOSED. If the door has been stopped in an open . 2. Adjust limits and/or force if necessary (see page 3). WARNING OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of which...
... control station until completely closed , it is clear of Your Operator MAINTENANCE SCHEDULE Once a Month • Manually operate door. If opening cycle. 7. If fully open, the door will not close when the beam is unbalanced or binding, call a trained door systems technician. • Check to door...installed and aligned) 1. Door MUST reverse on the floor. When the operator is CLOSED. If the door has been stopped in an open . 2. Adjust limits and/or force if necessary (see page 3). WARNING OPERATION IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of which...
3950 Manual
Page 17
... Installation Step 4. 3. The remote control has short range: • Check to the operator and/or operator mounting brackets. The door doesn't open completely: • Is something obstructing the door? Pull the emergency release handle. If it out of ice or snow under the door? The... buttons are the springs broken? See Installation Step 6. 10. The operator strains to operate door: • The door may have electric power? Open and close : • Check the safety reversing sensor. The operator won't operate due to power failure: • Use the emergency release handle...
... Installation Step 4. 3. The remote control has short range: • Check to the operator and/or operator mounting brackets. The door doesn't open completely: • Is something obstructing the door? Pull the emergency release handle. If it out of ice or snow under the door? The... buttons are the springs broken? See Installation Step 6. 10. The operator strains to operate door: • The door may have electric power? Open and close : • Check the safety reversing sensor. The operator won't operate due to power failure: • Use the emergency release handle...
3950 Manual
Page 18
... LED will not function without the jumper. 18 Motor unit "Learn" Button LED or Diagnostic LED "Learn" Button Diagnostic Chart 1 FLASH Safety reversing sensors wire open (broken or disconnected). If the sensor indicator lights do not glow steady. • Inspect sensor wires for a short (staple in wire), correct wiring polarity (black...
... LED will not function without the jumper. 18 Motor unit "Learn" Button LED or Diagnostic LED "Learn" Button Diagnostic Chart 1 FLASH Safety reversing sensors wire open (broken or disconnected). If the sensor indicator lights do not glow steady. • Inspect sensor wires for a short (staple in wire), correct wiring polarity (black...
3950 Manual
Page 20
... the number of your personal entry PIN (not the last temporary PIN), then press and hold the ENTER button. 3. The operator light will no longer open the door. USING THE "LEARN" BUTTON Optional To change an existing, known PIN If the existing PIN is installed, the light will blink once when...
... the number of your personal entry PIN (not the last temporary PIN), then press and hold the ENTER button. 3. The operator light will no longer open the door. USING THE "LEARN" BUTTON Optional To change an existing, known PIN If the existing PIN is installed, the light will blink once when...
3950 Manual
Page 22
... turn on a specially designed keyboard. This temporary password can be mounted in their door operator remote or from being manually opened once closed. Guide Mounting Bracket Kit: The bracket can add a temporary password for applications where the drive chain is required... configurations with the motor location outside by entering a password on a work light from their car with their home with an additional LiftMaster Security✚® remote. 3950MB 371LM 1-Button Security✚® Remote Control : Includes visor clip. 3950CGJ 372LM 2-Button Security✚...
... turn on a specially designed keyboard. This temporary password can be mounted in their door operator remote or from being manually opened once closed. Guide Mounting Bracket Kit: The bracket can add a temporary password for applications where the drive chain is required... configurations with the motor location outside by entering a password on a work light from their car with their home with an additional LiftMaster Security✚® remote. 3950MB 371LM 1-Button Security✚® Remote Control : Includes visor clip. 3950CGJ 372LM 2-Button Security✚...