Rockwood 1700 Universal Door Coordinator, Black Prime Coat Finish

Not for stop mounted hardware. The 1700 mounts on the door stop and Rockwood states no mounting brackets are required when the hardware it works with is stop mounted. Fasteners come in the box: four 10-24 x 2 inch flat head machine screws and #10 x 2 inch sheet metal screws, so you have both a machine-screw option for a hollow metal frame and a sheet metal option.

ANSI A156.3, Type 21B. A156.3 is the exit device and auxiliary hardware standard, and the Type 21B designation is what a spec writer or institutional buyer looks for when a drawing calls out a coordinator by type rather than by part number. If your submittal says Type 21B coordinator, the 1700 answers it.

For an opening where the fire label is the governing requirement, the ABH 3700 series is a full bar coordinator described as UL listed fire door compatible, and the Ives COR32, COR42, COR52, COR60 and COR72 aluminum bar coordinators carry a fire rating. The Trimco 3092 retracting arm coordinator and Trimco 3094 stop mounted coordinator are both UL units. The Rockwood 1700 is a commercial universal coordinator built to ANSI A156.3 Type 21B and is non-handed, so one unit serves either hand.

The Trimco 3094 is a stop mounted coordinator, the same mounting approach as the Rockwood 1700, which mounts to the stop and needs no mounting brackets for stop mounted hardware. Both are single-piece coordinators for a pair of doors that sequence the inactive leaf ahead of the active leaf. The Rockwood 1700 is a universal, non-handed unit built to ANSI A156.3 Type 21B, so one part covers either hand of an opening.

The 1700 is Rockwood's universal coordinator, one model rather than a range of length specific units, and it is non-handed. Bar coordinators generally get cut or sized to the frame opening at install. Note that some competing lines are ordered by opening width instead, for example the Ives COR Series is sold as COR32, COR42, COR52, COR60 and COR72 by size.

No handing to specify. The 1700 is non-handed, so the same unit works whether the active leaf is on the left or the right. That is one less field measurement, and it means you can stock a single part across a building instead of a left and a right.

Prime coat is a paint base, not a final finish. The 1700-BPC ships in black prime coat over steel so it can be field painted to match the frame. On a stop mounted coordinator that is usually what you want anyway, since it gets painted along with the stop. If you need a decorative plated finish out of the box, prime coat is the wrong choice.

A bar type like the Rockwood 1700 runs across the head under the stop and holds the active leaf mechanically, which is the usual choice on standard hollow metal pairs. A gravity coordinator such as the Ives COR7G/COR9G works off a pivoting arm instead and is field adjustable, which helps when the doors are unequal or the closing sequence needs tuning after hanging. There is also a retracting arm style, the Trimco 3092. Bar coordinators are the default; the arm types are what you reach for when the opening will not take a full width bar.

Yes, if the pair has an overlapping astragal or one leaf carries a mortise flush bolt or vertical rod that has to be engaged before the other leaf shuts. Closers control speed, not sequence. Without a coordinator like the 1700, both leaves race and the active leaf can arrive at the astragal first, leaving the pair unlatched. On a pair with no astragal and no sequencing requirement, you do not need one.

Bar type coordinators such as the ABH 3700 series, which is a full bar unit with a filler bar, and the Ives COR32, COR42, COR52, COR60 and COR72 aluminum bar coordinators run a bar across the full width of the frame soffit, so the bar length is matched to the opening width and the filler bar closes out the remainder. The Rockwood 1700 is a universal non-handed unit that mounts to the stop, with no mounting brackets required for stop mounted hardware, and is supplied with four 10-24 x 2 inch flat head machine screws and #10 x 2 inch sheet metal screws.

No. The Ives COR7G and COR9G are brass gravity door coordinators with field-adjustable operation, a different mechanism that relies on a gravity actuated arm and can be tuned in the field after mounting. The Rockwood 1700 is a steel universal coordinator, non-handed, stop mounted, meeting ANSI A156.3 Type 21B. Both sequence a pair of doors, but the gravity units and the 1700 are not interchangeable parts on an opening that is already prepped for one or the other.

It is commercial grade hardware. Rockwood builds the 1700 in steel and the line is used across institutional buildings, offices, retail, educational, detention, sports facilities, hotels and restaurants. For a high traffic corridor pair that is the right class of part.

The Rockwood 1700 is steel with a black prime coat, intended to be painted to match the frame, so it suits openings where the coordinator is finished out with the hollow metal. The Ives COR7G and COR9G are brass gravity coordinators, and the Ives COR32, COR42, COR52, COR60 and COR72 are aluminum bar units. On most openings the coordinator sits above the doors on the frame soffit, so the choice is usually driven by mounting type rather than by the material.