Exit Device Knowledge

ANSI Numbers & Common Options

01 Exit Only
02 Dummy Trim
03 Night Latch - latch retracted by key only; separate dummy pull recommended
05 Thumbpiece - depression of thumbpiece operates device
08 Lockable Knob or Lever Trim
09 Night Latch with Knob or Lever Trim
-- Dogging - latchbolt holdback feature controlled by hex key (not for use on fire rated doors)
-- Cylinder Dogging - dogging controlled by keyed cylinder (not for use on fire doors)
-- Electric locking or unlocking of trim
-- ELR (electric latch retraction)
-- Pneumatically controlled trim or latch retraction
-- Alarm devices or alarm kits for existing devices
-- Latchbolt and locking monitors
-- Signal switches
-- Delayed egress
-- Glass bead kits
-- Dummy push pads
-- High security bolts

Definitions

Astragal - A molding or strip with the purpose of covering or closing the gap between the edges of a pair of doors; some types overlap, others meet at the center line of a pair of doors

Coordinator - A device used on a pair of doors to ensure that the inactive leaf is permitted to close before the active leaf; necessary when both doors have closers and either of the following are true: 1) there is an overlapping astragal, or 2) the latchbolt of the active door needs to engage in the inactive leaf

Dogging - As used in exit devices, a mechanism that retains the latchbolt(s) in a retracted position, thus permitting push/pull operation of the door from either side. Cannot be used on fire rated devices.
Mullion – A fixed or removable vertical post dividing a door opening

Shims – A piece of material used to true up or fill in the space between the two surfaces

Strike – A metal plate or box that is pierced or recessed to receive the bolt or latch when projected

UL – Indicates that the product was tested by Underwriters Laboratory

Popular Double Door Applications

  1. Mortise lock and vertical rod device combination, swinging same direction. Coordinator required.
  2. Two rim devices with mullion, swinging same direction.
  3. Two vertical rods - double egress, doors swing in opposite direction. Vertical rods typically used on pairs of doors
  4. Two vertical rod devices swinging in same direction. Not to be used on A label pairs of doors with overlapping astragal. Vertical rods typically used on pairs of doors

Popular device types

Rim Device – Latchbolt is completely enclosed in latch case

Mortise Device – Latch case is mortised into door edge, similar to that of a mortise lock

Concealed Vertical Rod – Top and bottom latching; Rods concealed within the door

Surface Vertical Rod – Top and bottom latching mounted on surface of push side of door

High security exit device

  • Has interconnected deadbolt for added security
  • Single motion egress from the inside, high security from the outside
  • Works with all types of access control systems
  • Meets life safety, fire, building, and security code requirements
  • Models available from Von Duprin

Removable mullions

  • Get single door performance in double door openings with rim devices
  • Easily removed by loosening bottom set screw and removing top fitting cover
  • Top fitting is attached to the frame and is concealed by the fitting cover
  • Available for electric and monitor strikes (handing required)
  • Keyed removable mullions also available
  • Available for fire doors
©2010 - La Force, Inc.
all rights reserved
site by buildmyownsite.com