Page 267 - Herrajes Patricios - Catalogo LCN

Automatic
Operators

WHAT IS THE ADA? HOW IS THE DOOR MEASURED?
The ADA is a civil rights law, not a building code. This act is designed to Two ADA criteria affect the door closer selection, adjustments, opening
provide protection for people with disabilities. The law is divided into four force, and time to close. Since the law does not clearly define the method
major titles that prohibit discrimination against the disabled in Employment, of measurement, this is LCN’s recommendation.
Title I, Public Services and Transportation Title II, Public Accommodations 1. On the push side of the door, locate a point at the center line of the
Title III, and Telecommunications Title IV. Title III concerns doors and door push plate/lock trim or 34˝ (864 mm), from the hinge edge of the door,
controls. whichever is greater.
WHAT IS THE INTENT OF ADA, TITLE III? 2. Mark the floor at a point where the push side of the doors’ latch stile is
Essentially, owners of certain types of buildings must remove barriers and at 70°. Mark a second point where the push side is 3˝ (76 mm) from the
provide people with disabilities with access equal to, or similar to, that latch.
available to the general public. The deadline for compliance was January 3. Open the door so the latch is clear of the strike and the door is slightly
26, 1992. off the stop.
The final rules implementing Title III were published in the Federal 4. Using a force gauge on the mark determined in Step #1, push the door
Register of July 26, 1991. To obtain a copy or ask questions, contact the U.S. open to the 70° mark established in Step #2. Observe the force readings.
DEPARTMENT OF JUSTICE. Technical information can be obtained from The (Accuracy of the readings varies with the gauge quality.)
U.S. ARCHITECTURAL AND TRANSPORTATION BARRIERS COMPLIANCE 5. Adjust the closer spring power to meet the maximum opening force.
BOARD. 6. Hold the door at the 70° mark. Release the door and time the closing
sweep between the two marks.
HOW DOES ADA AFFECT DOORS? 7. Adjust the closer main speed regulation valve to obtain a minimum 3
The ADA defines an “accessible” opening which means, among other second “time to close”.
things, providing a door with a minimum 32˝ (813 mm) clear opening, easily
manipulated handles, a maximum opening force, a minimum closing time, FINISHES
and capable of opening to at least 90°. n Available in six standard or a wide selection of optional custom
ADA criteria, based on OPENING FORCE, are similar to American National powder coat finishes to blend with door and frame.
Standards Institute (ANSI) Standard A117.1. This is different from ANSI n LCN’s powder coat finishes surpass 100 hours of salt spray which is
Standard A156.4, which is based on CLOSING FORCE. over four times the ANSI standard for corrosion resistance.
WHAT ARE THE OPENING FORCE LIMITS? n For installations where a higher level of corrosive resistance is
required, LCN offers an optional special rust inhibiting (SRI) pre-
DOOR TYPE OPENING FORCE
treatment. Closers that combine the exclusive LCN powder coat finish
Fire Rated Note 1 and the SRI pre-treatment exceed the ANSI standard for corrosion
Interior Non-Fire-Rated 5.0 lbs. (22.2 N) resistance even further.
n Plated finishes are available as an option to accent door and frame.
Exterior Non-Fire-Rated “Reserved”
NOTE: Delayed action closers are not
NOTE 1: All fire rated doors should have the minimum opening force allowable by the necessary to meet the ADA 3 second
appropriate administrative authority, typically the local Fire Marshal. Closing and “time to close” requirement but do
latching a fire door takes precedence over ADA opening force limits.
offer additional time for people to
pass through the door.

CAUTION ! Any manual door closer,
including those certified by BHMA to
conform to ANSI Standard 156.4, that
30" is selected, installed, and adjusted
based on ADA requirements may not
(OR)
provide sufficient power to reliably
C/L OF TRIM close and latch a door. Auto Equalizer
systems offer an alternate solution.
WHICHEVER
IS GREATER

G3
LCN Door Control Catalog
phone: 877-671-7011 n fax: 800-248-1460 n www.allegion.com/us n 009426 rev. 01/18