Norton Unitrol® Door Controls - Page 5

General Information

Features

Integrated Door Control: A commercial grade door closer, and a heavy-duty shock absorbing door stop, with or without an overhead door holder mechanism. . .all integrated into a single unit.

Total Performance: The Unitrol Door Control offers the same functions as a separate door closer, heavy duty door stop and holder. They've been engineered to provide maximum control with minimum stress to door, frame and hardware.

Single Installation: The Unitrol Door Control requires only the labor of installing a door closer. The labor necessary to template prep and install an overhead stop and holder is saved.

Door Stop: Steel detent riveted to the Unitrol arm elbow will permit door swing to within 2° of the nominal template opening.

Door Holder: Optional feature. Spring loaded plunger mates with the cam cavity at the arm elbow to hold the door open within 2° of the nominal template opening. Series suffixed "H."

85°-110° Range: Norton Unitrol Door Controls are supplied with templates allowing installation of door hold-open from 85° to 110° in 5° increments. Shock absorber action will permit the door to overtravel about 5°, for positive stop at 90° to 115°.

Hold-Open Selector: Optional hold-open feature is engaged/disengaged by a partial turn of a standard blade screwdriver.

Rugged Construction: Unitrol arms were designed to take the shock of the positive door stop in high-use demanding environments, day after day.

ANSI Grade 1 Door Closer: Unitrol Door Controls offer Norton Door Closers meeting ANSI A156.4 grade 1, under the Door Closer Certification Program of the Builders Hardware Manufacturers Association.

Rack and Pinion Operation: The tempered steel gears in Norton Door Closers provide long-lasting smooth action throughout the entire door opening and closing cycle.

Multiple Feature Door Closers: All door closers supplied with Unitrol Door Controls have valves for sweep speed, latch speed and backcheck cushioning. The door is under complete hydraulic regulation from the point at 60° door opening in the opening cycle thru the totality of the closing cycle.

Conventional Door Closer Sizes: Norton Door Closers Series 1600BC, Series 7700, Series 8300 and Series 8500, provide Unitrol Door Controls in conventional sizes 2, 3, 4, 5 and 6. These door closers, except the Series 1600BC, also have 50% power adjustment over the basic ANSI closing force for the closer size.

Parallel Arm Installation

Top Jamb Installation

"Traditional" Door Closer Sizes: Norton Traditional Door Closers Series 78B/F provide Unitrol Door Controls in two adjustable power sizes: Series 78BD (adjustable to sizes B, C and D), and 78EF (adjustable to sizes E and F).

Multi-Size Door Closers: Norton Unitrol Door Controls with multi-size door closers are available adjustable to either ANSI door closer sizes 2 thru 6 (Series 7500, 8301, 8501) or Accessibility Code Range (Series 7500BF, 8301 BF, 8501 BF). All Norton Unitrol Multi-Size Door Controls have full feature door closer options listed by ANSI.

Tamper Resistant Valve Adjustment: Norton Door Closers supplied with Unitrol Door Controls feature valves regulated by a 1/8" hex-key included with each unit. The need for this hex-key discourages unauthorized manipulation of the closer's valve adjustment.

Non-Critical Valve Adjustment: Hydraulic control of Norton Door Closers is regulated by stable, easy to adjust valves.

Adjustable Backchecking Cushioning: All Norton Door Closers feature this hydraulic resistance to door opening at the end of the opening cycle. It is adjustable by an independent valve marked "B" or "BC." This control is not available for Unitrol Series UNI-1600DA.

Adjustable Sweep Speed: All Norton Door Closers have this door closing sweep speed control. It is adjustable by a valve marked "S."

Adjustable Latch Speed: All Norton Door Closers have this door latching speed control. It is adjustable by a valve, marked "L."

Adjustable Delayed Action Closing: Optional hydraulic control -- of the door closing speed; effective when the door is released at any point beyond 70° of opening swing. This feature is used to bring the open door to a creeping motion before the standard door closing cycle begins. This delay permits the passage of slow moving traffic thru the doorway. This feature is not offered in Unitrol Door Controls using Series 78B/F Door Closers nor available with backcheck cushioning in Unitrol Door Controls using Norton Series 1600 Door Closers.

U.L. Listing: Norton Unitrol Door Controls, without hold-open feature, are listed by Underwriters Laboratories Inc. and Underwriters' Laboratories of Canada for use on labeled fire doors.

Non-Handed: Most Norton Unitrol Door Controls are non-handed: they can be installed either on right or left hand doors. Unitrol Series UNI-78B/F are handed but field reversible: top jamb Unitrols with optional covers are handed.