Code required safety upgrade
Several states are adopting new code requirements under ASME 17.3 and/or ASME 17.1, mandating door lock monitoring systems are installed and activated on elevators.
The door lock monitoring system required for your elevator(s) will vary depending on the age and type of equipment you have. A combination of software, electronic logic system and sensors prevent the car from moving with the doors open.
The door lock monitoring system required for your elevator(s) will vary depending on the age and type of equipment you have. A combination of software, electronic logic system and sensors prevent the car from moving with the doors open.
Door Lock Monitoring features
Detects door contact
malfunctions and door status (open vs. close)
Prevents an elevator from moving with the doors open, improving passenger safety
Streamlined installation for minimal downtime
Engineered for universal elevator compatibility
Door Lock Monitoring requirements by State
Not sure if this code requirement applies to you?
Click on your state to learn more.
Click on your state to learn more.
Book your survey
Even if you have a newer elevator, it is possible that Door Lock Monitoring is is already installed, but not yet enabled. We strongly recommend scheduling a survey to ensure your elevators are fully code-compliant.
FAQ
HOW DOES DOOR LOCK MONITORING WORK?
The door lock monitoring (DLM) system is designed to monitor and prevent automatic operation of the elevator with faulty door contact circuits. During regular operation, the position of car doors is monitored to prevent the car from moving in the event of a faulty door contact circuit.
HOW CAN I TELL IF MY ELEVATOR ALREADY HAS DLM INSTALLED OR NOT?
To determine if your elevator already has DLM installed, you should ask your Otis representative for an inspection. While most elevators built or modernized after the year 2000 have DLM, it’s essential to verify its activation and functionality. Check with Otis’s team to confirm the presence and proper operation of the DLM system in your elevator. Request a survey here to ensure your elevators are fully code-compliant.
DO I HAVE TO HAVE AN OTIS ELEVATOR TO USE YOUR SOLUTION?
No. Otis has a door lock monitoring solution for you regardless of what type of elevator you have. Regardless of your equipment, we have a versatile, custom and reliable solution for your unit.
WILL MY ELEVATOR BE SHUT DOWN DURING INSTALLATION?
The installation process typically involves some downtime for the elevator. The extent of the shutdown depends on the complexity of the system and the specific requirements of the installation necessary to make your elevator(s) code compliant. The Otis team always works to minimize disruption and can coordinate an installation plan in a way that aligns with your building's operational needs.
HOW MUCH DOES DOOR LOCK MONITORING COST?
A survey is required to determine what door lock monitoring solution is needed to make your elevator code compliant.
Contact Otis today to request a survey.
Contact Otis today to request a survey.
WHAT ARE THE CONSEQUENCES IF I DO NOT UPDATE THE DLM ON TIME?
Non-compliance may result in penalties imposed by regulatory authorities. Beyond the financial implications, there’s a risk of compromising passenger safety, as the DLM system plays a crucial role in preventing elevators from moving with partially or fully open doors. Non-compliance could also lead to the denial of necessary permits or certifications, hindering the operation and use of the elevator. Property owners and managers are encouraged to prioritize timely updates to ensure adherence to safety codes, mitigate potential risks, and maintain a secure and compliant vertical transportation system.