Dormitory & Hotel Function Cylinders: Privacy Deadbolt with Emergency Release
Engineering Overview: Engineering analysis of dormitory and hospitality lock cylinders, coordinating interior thumbturn privacy deadbolts with master key emergency overrides.
Technical & Engineering Specifications
| Standard | BHMA A156.13 / EN 12209 |
|---|---|
| Egress Action | Single-Motion Simultaneous Latch/Deadbolt Retraction |
| Function Name | Dormitory / Hotel Function (ANSI F13) |
| Deadbolt Action | 1-Inch Throw High-Security Deadbolt |
| Master Override | Emergency Key Retracts Thrown Deadbolt |
Hospitality Access Coordination
Dormitory & Hotel Cylinders coordinate guest privacy with master key emergency overrides.
Mechanical Sequence
- Guest Privacy: Throwing the interior thumbturn extends a 1-inch deadbolt and projects a status indicator.
- Emergency Key Override: High-tier Emergency Master Keys (EMK) incorporate deep bitting that mechanically overrides the thrown deadbolt.
- Panic Egress: Depressing the interior handle simultaneously retracts both latch and deadbolt in one smooth motion.
Frequently Asked Engineering & Selection Questions
Q1: Can a hotel master key open a deadbolted guest room door?
Standard master keys cannot, but a specialized Emergency Master Key (EMK) is engineered to mechanically retract the thrown deadbolt.