Strict Standards: mktime(): You should be using the time() function instead in /home/dorma/public_html/_includes/obj_session.php on line 35
DORMA E-learning
Dorma Glas
SPACER
 

Contact Information
800-523-8483
e-learning@dorma-usa.com

   
 
  Program 12
   
 

AIABH1B - Basic Hardware: Closers, Exits, Locks, and Key Systems

DHI CEP Program #10-1122

   
       
 
     
 

LEARNING OBJECTIVES

Part 1 - Key Systems

Part 2 - Locks

Part 3 - Exits & Closers
o

CERTIFICATE OF COMPLETION


 

<< Glossary of Terms >>

 

Part 2 - Locks

It's important to understand the different grades of locksets to ensure that you do not under specify your lockset. For example, a medium duty lockset is not designed to hold up under the frequent use and abuse of a school environment, but will function very well in an office environment.

Cylindrical or bored locksets:

  • Heavy duty, medium duty and light duty available
  • Cylinder located in lever
    • Most manufacturers offer only a few different designs
  • Lever styles limited
    • Usually about 10 various locking functions

Cylindrical or bored functions:

  • Passage
    • Both leaves unlocked at all times
  • Exit lock
    • Blank plate outside; inside lever is always unlocked
  • Bath/Bedroom privacy
    • Inside push-button locking; can be opened from outside with small screwdriver; turning inside lever or closing door releases button
  • Single dummy trim
    • Single dummy trim is for one side of door; used for door pull or as matching inactive trim
  • Hospital privacy
    • Push-button locking; unlocked from the outside by turning emergency turn-button; turning inside lever or closing door releases button
  • Entrance/Office lock
    • Push-button locking; push-button locks outside lever until unlocked with key or by rotating inside lever
  • Entrance lock
    • Turn/push-button locking: pushing and turning locks outside lever requiring use of key until button is manually unlocked; push-button locking: pushing button locks outside lever until unlocked by key or by turning inside lever
  • Classroom lock
    • Outside lever locked and unlocked by key; inside lever always unlocked
  • Storeroom lock
    • Outside lever fixed; entrance by key only; inside lever always unlocked
  • Hotel/Motel lock
    • Outside lever fixed; entrance by key only; push-button inside lever activates visual occupancy indicator, allowing only emergency master key to operate; rotating inside lever or closing door releases visual occupancy indicator; rotation of inside spanner button provides lockout feature by keeping indicator thrown

Mortise locks:

  • Heavy duty applications
    • Designed to hold up to frequent use and abuse; internal parts can be easily replaced to repair the lockset in the event something break
  • Many lever styles available
    • Cylinder separate from the lever, which enables the manufacturer to offer more lever styles (10 levers and 2 knobs designs); the mortise lock is also available with sectional trim - a separate rosette and lever combination, and turn piece and cylinder or with an escutcheon plate
  • Available with sectional trim or escutcheon plate
  • Parts easily replaceable
  • Available with deadbolt for extra security
    • In one motion, both the latchbolt and the deadbolt are retracted providing free egress for the occupant

The mortise lock offers many more functions than the cylindrical lock:

  • Un-keyed
  • Keyed
  • Keyed deadbolts
  • Special functions

Total: 49 functions

Mortise functions - un-keyed:

  • Passage Latch
  • Bath/Bedroom Privacy
  • Privacy with coin turn outside
  • Privacy with deadbolt
  • Privacy with deadbolt and coin turn outside
  • Single dummy trim
  • Double dummy trim
  • Single dummy with lock case
  • Double dummy with lock case

Mortise functions - keyed:

  • Office and inner entry lock
  • Office and inner entry lock with simultaneous retraction
  • Apartment entrance lock
  • Classroom lock
  • Classroom security lock
  • Classroom holdback lock
  • Classroom security and holdback lock
  • Storeroom lock
  • Electrically locked (fail safe or power lock)
  • Electrically unlocked (fail secure or power unlock)
  • Request to exit electrified lock
  • Institution lock
  • Electrically locked or electrically unlocked both sides

Mortise functions - keyed deadbolts:

  • Entrance lock
  • Corridor lock
  • Classroom security lock
  • Closet/Storeroom lock
  • Store/Utility room lock
  • Dormitory/Bedroom lock
  • Storeroom lock
  • Hotel lock
  • Hotel lock with "Do Not Disturb" indicator
  • Hotel lock with "Occupied" indicator
  • Privacy with "Occupied" indicator

Mortise functions - keyed:

  • Mortise keyed
  • Cylinder and thumbturn lock
  • Double cylinder lock
  • Classroom lock
  • Cylinder lock
  • Mortise small case deadlock
  • Cylinder and thumbturn
  • Double cylinder lock
  • Classroom lock
  • Cylinder lock
  • Door bolt
  • Deadbolt with "Occupied" indicator

Mortise - special functions:

  • Double dummy with active trim
  • Privacy with turn buttons both sides
  • Privacy with turn buttons both sides with fixed dummy trim
  • Deadbolt with retraction by inside lever or knob
  • Institutional lock with deadbolt
  • Prison function lock

Caution: double cylinder locks used for egress in residences or any door in any structure are a life safety hazard in times of emergency. Their use is not recommended. Installation should be in accordance with existing codes only.

NFPA 101 - 2000 paragraph - 7.2.1.5.4

A latch or other fastening device on a door shall be provided with a releasing device having an obvious method of operation and that is readily operated under all lighting conditions. The releasing mechanism for any latch shall be located not less than 34" (86 cm) and not more than 48" (122cm) above the finished floor. Doors shall be operable with not more than one releasing operation.

Talk with the AHJ (Authority having Jurisdiction) before using these locks or if you think you have any concern with locking functions.

Unit locks:

You may have a project with existing doors that may require a pre-assembled or unit type lockset. There is a square cutout in the door and the lock slips right into the cutout. Often, the manufacturer will only offer one lever design with this type of lock.

  • Pre-assembled locks
  • Square cutout in door
  • Shipped and installed assembled
  • Limited lever designs

Unit lock functions:

  • Passage
    • Both leaves unlocked at all times
  • Bath/Bedroom privacy
    • Latchbolt by either lever; outside lever locked by inside push-button; outside lever unlocked by emergency release, by rotating inside lever or by closing door
  • Entrance lock
    • Latchbolt by either side, except when push-button locks outside lever; push-button is released by turning inside lever or by key in outside leve; key outside retracts latchbolt; outside lever unlocked by turn button; inside lever is always free
  • Classroom lock
    • Outside lever locked and unlocked by key; inside lever always unlocked
  • Storeroom lock
    • Outside lever locked; entrance by key only; inside lever always unlocked

Deadbolts:

  • Deadlocks
    • There are two types of deadlocks: bored, or cylindrical and mortise; the deadbolt can be used where additional security is required, but these do not provide positive latching, and as a result are not allowed on fire rated openings
  • No positive latching
  • Added security

Deadbolt functions:

  • Single cylinder deadbolt
    • Deadbolt thrown or retracted by key from outside or by inside turn unit; bolt automatically deadlocks when fully thrown
  • Double cylinder deadbolt
    • Deadbolt thrown or retracted by key from either side; bolt automatically deadlocks when fully thrown
  • One-way deadbolt lock
    • Deadbolt thrown or retracted by key only; blank plate inside; bolt automatically deadlocks when fully thrown
  • Classroom deadbolt lock
    • Deadbolt thrown or retracted by key outside; inside turn unit will retract bolt only; bolt automatically deadlocks when fully thrown
  • Cylinder lock
    • Deadbolt thrown or retracted by key from one side; no inside trim; bolt automatically deadlocks when fully thrown
  • Door bolt
    • Deadbolt thrown or retracted by turn unit only; no outside trim; bolt automatically deadlocks when fully thrown

Caution: double cylinder locks on residences and any door in any structure which is used for egress are a life safety hazard in times of emergency and their use is not recommended. Installation should be in accordance with existing codes only.

Specifying the right lockset:

When determining the right lock for your project, think about where the lockset will be used, how you need it to function, and what type of lockset will meet your safety considerations, security needs and budget requirements.

  • Where?
    • Office, classroom, maintenance building, medication storage, dormitory, etc.
  • How?
    • Left unlocked, sometimes; must always be locked; occupied indicator, "Do Not Disturb"; security deadbolt; etc.

Electrified locks:

  • Electrically locked
    • When energized, the lockset is locked; when power fails, no locking is provided (fail safe or power lock)
  • Electrically unlocked
    • When energized, the lockset will unlock; when power fails, locking is still provided (fail secure or power unlock)

It's important to understand the difference between fail safe and fail secure. For example, when using an electrified lock on an exterior door, you would want to specify fail secure. In the event power fails, there would still be locking provided.

Available in mortise or cylindrical locksets, it's important to understand that the lever is locked/unlocked and the latch bolt is not retracted. Mortise locks offer the RX feature, "Request to Exit." RX will tell the access control system that there is an authorized exit from the area. An example of RX is a push button, and perhaps a motion detector. Electrified locks can be used for added security or convenience, and can be tied into most electronic access control systems, networked or stand-alone.

Specifying electrified locks:

  • Coordinate with electrical and security drawings
  • Switch (push button or card swipe)
  • Power supply
  • Monitoring
  • Be sure to specify fail safe or fail secure where applicable
  • Can be used in means of egress
  • Free egress must be permitted in the direction of egress travel
  • Can be used on a fire door
  • Always indicate "Operation of Opening"

When specifying electrified hardware, it's always important to coordinate with the other trades that are involved. For example, if you specify an electric lock or electric strike, who is going to supply the power supply that is required to power the lock? Who will supply the key switch or push button? Most items that will be required for an access control system can be specified as part of Section 08710.

Another thing to remember, it's always better to have the manufacturer who makes the electrified hardware provide the power supply to power the item. Be sure to specify fail safe or fail secure, where applicable. Electrified hardware can be used in a means of egress, as long as free egress is always permitted in the direction of egress travel. In addition, electrified hardware can be used on a fire door as long as the door remains positively latched and closed at the time of a fire.

When specifying electrified hardware, always indicate the operation of opening (Description of Operation) under your hardware set. The components of an electrified access control system can be combined to function in a variety of ways. Be very clear about how you wish the system to operate.

Example of an operation of opening statement:

Mortise lockset to have electrified locking. Proximity card permits entry for authorized personnel. Push-button to be located behind reception desk for momentary unlocking from remote location. Egress from inside always permitted.

Your document should be a compilation of the following:

  • Operational description
  • Parts/Components list
  • Point-to-point wiring diagram
  • Applicable notes
  • Drawing reference number
  • Tie to specification documents


Evaluation

Upon submission, results of your evaluation will be displayed with the correct answers shown in red.


Strict Standards: mktime(): You should be using the time() function instead in /home/dorma/public_html/_includes/obj_tests.php on line 39
  1. Different grades of locksets are available for aesthetic reasons only, not necessarily the application or environment.
    True
    False
  2. Examples of cylindrical or bored functions:
    Bath/Bedroom privacy
    Hospital privacy
    Classroom lock
    All of the above
  3. The ___________ lock offers many more functions than the cylindrical lock.
    Mortise
    Unit
    Electrified
  4. __________ locks are used with existing doors that may require a pre-assembled lockset.
    Cylindrical or bored
    Mortise
    Unit
  5. When using the electrified lock on an exterior door, you would want to specify _____________.
    Fail safe
    Fail secure
  6. Electrified hardware can be used on a fire door as long as the door remains _______________at the time of a fire.
    Open
    Positively latched and closed
  1. Different grades of locksets are available for aesthetic reasons only, not necessarily the application or environment.

  2. Examples of cylindrical or bored functions:



  3. The ___________ lock offers many more functions than the cylindrical lock.


  4. __________ locks are used with existing doors that may require a pre-assembled lockset.


  5. When using the electrified lock on an exterior door, you would want to specify _____________.

  6. Electrified hardware can be used on a fire door as long as the door remains _______________at the time of a fire.

Proceed to: Part 3 - Exits & Closers

 

 

 

 

 

   
       
FOOTER