SERIES 7200 GENERAL INFORMATION
Features
Handed: Specify when ordering. Closer
sizes: 3, 4 or 5.
Rack and Pinion Operation: Provides a
smooth transmission of power for control of the door through its full opening and closing
cycle.
Aluminum Alloy Shell: Closer bodies are
constructed of a special aluminum alloy, carefully selected to accommodate individual
closer characteristics and operating conditions.
Adjustable Closing Speed: An independent
regulating valve, hex-key-operated, permits adjustment of the general closing speed.
Adjustable Latch Speed: An independent
regulating valve, hex-key-operated, permits adjustment of the door's speed for
approximately the last 10° of the closing cycle.
Adjustable Backcheck Cushioning: An
independent regulating valve, hex-key-operated, provides an adjustable hydraulic cushion
to the door's opening speed toward the end of the opening cycle.
Adjustable Backcheck Position: An
independent valve, hex-key-operated, allows adjustment of the point, in the door's opening
cycle, at which backcheck cushioning takes effect.
Non-Critical Valves: All control valves
for sweep/latch speed and backcheck cushioning are non-critical and are adjusted by
astandard 1/8" hex-key.
Adjustable Spring Power: Power can be
adjusted up to 50% over the minimum closing force for each size of closer by rotating the
11/16" power adjustment nut on the end of the closer.
Closer Adjustment Decal: A decal is
permanently affixed to the inside of the cover. This decal fully details sweep and latch
speed adjustments, backcheck cushioning, backcheck position, and spring power adjustment.
Projection: Sprayed metal cover, conceals
the entire unit and projects only 2-9/16" (65mm) from the frame face.
Infinite Hold-Open: The door will hold
open at any degree of opening up to 175°, with a maximum allowable door opening of 180°.
Selective Hold-Open: The door will hold
open at any degree of opening, beyond a pre-set hold-open point, up to 175°, with a
maximum allowable door opening of 180°. Selective Hold-Open Units will be factory set for
hold-open at 80° and beyond. Simple field adjustment will permit hold-open range to be
Increased or decreased.
Fail Safe: In the event of a power
failure, the solenoid will deenergize and the Closer-Holder will then operate as a normal
door closer.
Wiring Option: All Series 7200
Electromechanical Closer-Holders will accommodate either concealed or surface wiring.
U.L Listing
All Norton Series 7200 Master Units with integral smoke
detectors have been tested and evaluated for public safety by Underwriters Laboratories
and are listed for application on labeled fire/smoke doors. Series 7200 Slave Units,
Tandem Units and Support Units without integral smoke detector are listed for application
with compatible labeled or listed fire/smoke detection equipment. Norton Series 7200 CFS
Closer Control with connected free-swing arm is U.L. listed as a Releasing Device for
Fire/Smoke Barrier Doors.
Master Unit Illustrated
The Series 7200 is available in the most commonly used
operating voltages of 24 Volts AC/DC or 120VAC, 60 Hz. Master Units are available in a
combination of these two voltages.
Units with Integral Smoke Detectors
Dual Chamber lonization Sensing: Detector
employs dual ionization chambers to substantially reduce the probability of false alarms.
Fire/Smoke Control Circuit: Interprets the
signal from the detector and provides switching contacts to interrupt hold-open solenoid,
to sound alarms, etc.
Alarm (Relay) Contacts: Normally open in
standby condition (operating and sensing for smoke condition). These contacts close during
an alarm condition (smoke detected) and may be used to switch power from the solenoid to
an optional local alarm.
Trouble (Relay) Contacts: Normally closed
in standby condition, these supervisory contacts monitor the continuity of power within
the detector circuit. Any power interruption within the detector circuit will open these
contacts. They can then be used to simultaneously indicate a Trouble Condition to the
Alarm Panel on a separate trouble circuit.
Locked-In Alarm: The unit which alarms
must be manually reset. This can be accomplished by remote control from the alarm system
panel or by the reset switch in the smoke detector module. Reset switch is accessible
through a hole in the cover.
Alarm Light: A red LED illuminates when
the detector goes into the Alarm Condition (smoke detected). This light is easily visible
through an opening in the cover and makes an alarmed unit easy to identify.
Pilot Light: A green LED easily visible
through an opening in the cover is illuminated at all times except when a Trouble
Condition is sensed. Indicates at a glance whether or not the unit is operating normally.
Test Switch: Permits door to be released
from hold-open without causing a "Trouble" condition at the alarm panel. Allows
for periodic testing of the automatic door release function.
ANSI Specification
The Series 7200 Electromechanical Closer-Holders conform to
ANSI A156.15; 2 year limited warranty on electrical components; 10 year limited warranty
on mechanical components. Made in U.S.A.
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