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Miller Edge Safety Regulations

Frequently Asked Questions and Answers

Miller Edge Sensors for Commercial Door Operator Dealers, Installers, and Service Technicians

(This information is effective as of August 29, 2010)

 

  1. What is changing?
    Commercial Operators that are UL Listed will require:
    1. The connection of a monitored (4-wire or 2-wire terminated) Miller Edge or Photo eye when wired for momentary pressure to close OR
    2. Constant Pressure on the close button
  2. What is a monitored Miller Edge?
    A monitored Miller Edge (4-wire or 2-wire terminated) is constructed so that the operator can check for the presence and proper operation of the edge. If the edge is disconnected or not working, most operators will revert to constant pressure to close.
  3. Can I use any monitored Miller Edge I choose?
    Yes. All monitored ME, MT/MU, and CPT models manufactured by Miller Edge have been tested with all major manufacturer's operators as monitored reversing devices so you can use Miller Edge Sensing Edges as the monitored device on commercial operators.
  4. How do I order a monitored edge?
    The same way you do now. We'll just need to know if it is being used with an operator manufactured post August 29, 2010 and who the manufacturer of the operator is.
  5. Can I use a monitored Miller Edge instead of a photo eye?
    Yes, all major operator manufacturers have tested with Miller Edge products and they are UL approved as a monitored device.
  6. Are the commercial operator additions to the UL standard the same as the residential door requirements?
    No, residential garage door openers have separate requirements. Miller Edge does manufacture edge sensors to meet either residential or commercial operators' standards, but they are different.
  7. Am I allowed to service and install older operators?
    Yes, the standard only applies to UL listed operators manufactured after August 29, 2010. Older operators are not required to comply with the new standard; however, it is is always a good idea to review new safety standards with your customers.
  8. Will installing a 4-wire Miller Edge sensor bring an older operator up to the new standard?
    No, but it will enhance the safety of the door system. You may want to recommend existing customers upgrade to a monitored edge system with their existing operators. Miller Edge has controllers that will enable monitoring for most older operators.
  9. Can I upgrade an older system to function in accordance with the new standard?
    Maybe. You will want to discuss this with your operator manufacturer. Some manufacturers may have replacement boards that will make the operator meet the functional requirements of the new standard.
  10. What is an ancillary device?
    In most cases, it is any additional reversing device that is not monitored. Operator manufacturers are only required to monitor one device. When more than just one device is needed to provide a safe door system, the additional devices are referred to as "Ancillary" devices.
  11. What Miller Edge products can I use as ancillary devices?
    All 2-wire N/O edges, the Patriot, Invisi-Guard, Airwave, Pneumatic and wireless products can be connected to the ancillary inputs of the operator.
  12. Will it take longer to install a monitored Miller Edge on a door?
    No. It will take the same amount of time to install on the door, if your door manufacturer has not already installed the edge of the door for you. Wiring connections should not take more time either. A monitored Miller Edge sensor does not require running any additional wires or conduit. Some operators may require the connection of two (2) additional wires.

 

Miller Edge Sensors for Commercial Door Sales and Service Representatives

  1. What is changing?
    Commercial Operators that are UL listed will require:
    1. The cibbectuib if a nibutired (4-wire or 2-wire terminated) Miller Edge sensor (or photo eye) when wired for momentary pressure to close OR
    2. Constant Pressure on the close button
  2. What does this mean to me?
    For customers who prefer momentary pressure to close, you will need to sell and install a monitored sensing edge or photo eye. A monitored device may be combined with other non-monitored devices to improve the door safety system. The device(s) you and your customers choose to use may vary depending upon the specific requirements of the installation. Consider the types of objects and vehicles and number of pedestrians which might pass through the door opening. If your customer prefers constant pressure to close, you can add any non-monitored device you choose, but you risk the chance of people being near the door and the value of materials passing through the door.
  3. What is the difference between monitored and non-monitored devices?
    If a monitored device is disconnected or damaged, most operators will revert to constant pressure to close, so the user will know there is a problem. If a non-monitored device is disconnected or damaged, the only way a user will know is to maintain a regular test schedule. There is no warning or indication of a problem.
  4. Can I see an upgrade for an older operator to meet the new standard?
    Maybe. You will want to discuss this with your operator manufacturer. Some manufacturers have replacement boards that will bring the operator up to the functional requirements of the new standard, but it may not be UL approved.
  5. Do I have to sell a photo-eye?
    No. Your customer has a choice of safety devices. As a door professional, you and your customers should discuss their choices and decide on the best option. Operator manufacturers and UL have tested Miller Edge products and they can be used as the monitored device.
  6. Can I sell a Miller Sensing Edge and a photo eye?
    Yes, as long as at least one of the devices is monitored. The other device does not need to be monitored and would be considered an acillary device.
  7. How do I buy a monitored edge?
    The same way you do now. We'll just need to know if it is being used with a UL listed operator that complies with August 29, 2010 requirements.
  8. Can I use any monitored device I choose?
    Unfortunately, the answer is NO. Monitored (Entrapment Protection) Reversing Devices must be tested with the operator to work as a system. The good news is Sensing Edges manufactured by Miller Edge have been tested with all major manufacturer operators as monitored reversing devices so you can use Miller Edge Sensing Edges as the monitored device on commercial operators.
  9. Are commercial door operators required to be UL listed?
    No. Unlike residential door openers, there is no federal law that requires commercial door operators to be UL listed. However, you may want to check state and local codes to see if they require UL listing.
  10. Am I allowed to service and install older operators?
    Yes, the standard only applies to operators manufactured before August 29, 2010. Older operators are not required to comply with the new standard; however, it is always a good idea to review safety standards and upgrades with your customers.
  11. Will I still be able to buy / install operators manufactured before August 2010?
    Yes. Even manufacturers are allowed to continue to sell their inventory, so you might find in Decemeber that you are still receiving operators that were manufactured prior to August 29, 2010 and do not require a monitored device. The UL standard change only applies to the date of manufacture.
  12. How do I identify a monitored edge?
    Operator manufacturers have chosen difference ways to monitor for the presence and operation of Millder Edges on their boards. These different wiring configurations are visible. Here are some examples of what to look for:
    • 4-wire: 4 conductors (2 white, 2 black)
    • Green Band at 2 conductor lead wire = T1 terminated 8.2K resistor assembly
    • Blue Band at 2 conductor lead wire = T2 terminated 10K resistor assembly
    • Red Band at 2 conductor lead wire = T3 termination, Diode-Capacitor assembly
    • White Band at 2 conductor lead wire = T4 termination, Capacitor assembly
  13. My customer does not want any protection devices. What do I do?
    Constant pressure on the down button to close the door meets the standard. Just make sure there is room to install the 3 button station next to the door in full sight of the opening.