DORCO1 DOOR COORDINATOR
Usually Ships: 1-3 Business Days
DORCO-1 / DORCO1 Door Coordinator for Paired Doors
The Cal-Royal DORCO-1 Door Coordinator, also identified as DORCO1, is a non-handed automatic coordinating device for the sequential closing of compatible paired doors, with or without an astragal. Its purpose is to control closing order where one leaf must close before the other. The DORCO-1 features all-metal construction and is offered in Black and Alum finishes.
Practical Uses
Consider the DORCO-1 for compatible paired-door openings in commercial and institutional buildings where the door leaves need to close in a particular sequence. It can support an opening with an overlapping astragal or another hardware arrangement requiring the inactive leaf to close before the active leaf.
The existing specifications identify use on fire-labeled doors and frame-opening configurations of 60", 72", or 84". Verify the actual opening width, leaf arrangement, astragal, closers, and latching hardware before selecting the coordinator. Do not assume that the same filler arrangement fits every opening.
Installation and Replacement
Identify the active and inactive leaves and the required closing sequence before positioning the coordinator. Use the manufacturer instructions and template to verify header mounting space, clearances, contact locations, and any required mounting brackets. Compare the preparation before reusing existing holes.
An 18-5/8" FB1858 filler bar is included. The existing description identifies the standard arrangement for openings up to 72" and an optional FB328 filler bar for extension to 84". Confirm the exact filler configuration against the manufacturer's sizing instructions. Optional MB-4250 and MB-4750 mounting brackets are identified in the existing listing; they are not established as included.
Coordinate installation with the door closers and latching hardware. Test with both leaves open and in the operating conditions described by the instructions. Verify that the required leaf closes first, the other follows without interference, and both latch correctly. The coordinator controls sequence; it is not a substitute for properly selected and adjusted door closers.
Problems It Helps Address
- Paired doors closing out of order: Coordinates the sequence where one leaf must close first.
- Interference at an overlapping astragal: Supports the required closing order when the coordinator and opening hardware are compatible.
- Replacement of worn coordination hardware: Provides an option where the mounting, opening width, and operating requirements match.
- Different handing arrangements: Non-handed construction supports compatible paired-door applications.
- Coordinating visible hardware: Black and Alum finishes provide two listed appearance choices.
At a busy paired doorway, both leaves may be opened together during deliveries or daily traffic. With the coordinator correctly installed and the closers properly adjusted, the inactive leaf can return first before the active leaf completes its closing cycle. If the leaves collide or fail to latch, inspect the coordinator adjustment, closers, hinges, astragal, and latches as a complete system.
Product Details
- Part number: DORCO-1 / DORCO1
- Type: Automatic paired-door coordinator
- Function: Sequential closing of paired doors, with or without an astragal, where compatible
- Handing: Non-handed
- Construction: All metal
- Listed frame-opening configurations: 60", 72", and 84", with the appropriate filler arrangement
- Included filler: FB1858, 18-5/8"
- Wider-opening option: FB328 filler bar identified for extension to 84"; optional, not included as standard
- Mounting bracket options: MB-4250 and MB-4750, subject to application
- Finishes: Black, described in the existing listing as black prime coat, and Alum
- Standard identified in the existing specifications: ANSI/BHMA A156.3, Type 21A, with 60" and 72" frame openings referenced
Compatibility and Fire-Door Considerations
The existing listing identifies the DORCO-1 for fire-labeled doors. Confirm the coordinator, mounting hardware, filler arrangement, and complete paired-door assembly meet the selected opening's requirements. Product selection alone does not establish the assembly's rating or compliance.
Do not use additional closing force to mask a binding leaf or incorrect sequence. Check that the required clearances and reliable latching are maintained after adjustments, and follow the manufacturer's guidance for inspection and maintenance.
