| Introduction The Yale 4500DPS Series Overhead Concealed Door Control with door
position switch is designed to communicate a "door open" and/or "door
closed" situation to remote locations. It is especially useful in detention
facilities, warehouses, or other controlled access environments. The signal from the
4500DPS may also be used to activate other units such as security cameras and alarms.
As little as 1/4" movement of the door causes a lever
arm to activate a switch. Adjustment for the amount of door movement can be made without
removal of the unit from the frame.
Since the momentary contact switch is an integral part of
the 4500DPS door closer, it is highly tamper resistant. The closer, switch and conduit box
are not visible or accessible when the door is closed.
Underwriter Laboratories Listing
Yale 4500DPS Series Overhead Concealed Door Closers with
non-hold open feature are listed by Underwriters' Laboratories, Inc. for use with fire
labeled hollow metal doors and frames.
WHI Listing
The Yale 450 Fire Block door liner is listed with Warnock
Hersey International for use in 20 minute wood fire doors that are listed with WHI, when
used with the Yale 4500DPS Series door closer.
The combination of a 4500DPS Series door closer installed
in a U.L. labeled hollow metal door frame and a Yale 4500 Fire Block installed in a WHI
labeled 20 minute fire door, which has the tested preparation, may qualify as a 20 minute
fire door assembly.
Always consult local authorities to determine the
acceptance and proper application of fire door hardware.
ANSI/BHMA/Federal Specifications
Yale 4500DPS Series Overhead Concealed Door Closers meet or
exceed FF-H-121C Federal Specification Types 3210-3215-3220 and ANSI type A156.4,
FF-H-121D Federal Specification Types CO5030, CO5040, CO5050 with options PT
4B-4C-4D-4F.
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