Essential Guide to the Astro-Swing Universal Control Box (85420-900)

The Astro-Swing Universal Control Box 85420-900 is a versatile replacement unit designed for both single and simultaneous pair door configurations. This manual provides a comprehensive overview of its capabilities, from standard operations to specialized safety system integrations.

Key Specifications and Compatibility

Door Capacity: Supports a maximum weight of 200 lb. per door leaf.
Door Width: Accommodates single doors from 36″ to 48″ and simultaneous pairs from 30″ to 48″.
Improved Hardware: Features internal hardware upgrades for enhanced reliability compared to previous models.
SWING-12 Integration: This is the only Astro-Swing control box compatible with SWING-12 equipment.

Advanced Functionality

The unit features a Function Selector Dial (Settings 0-F) that allows installers to tailor the box to specific safety systems and operational needs:

Safety Slow & Stop: Available for SWING-12, Super-Nova, and Sensor Rail systems. These settings ensure the door reacts safely if an object enters the swing area during the opening cycle.
Delayed Activation: Provides a one-second delay to allow electric strikes or magnetic locks enough time to retract before the door opens.
Automatic Reversing: Configures the door to re-open if it encounters an obstacle while closing.
Alternate Action: Ideal for push-button or keyswitch use; an activation signal opens the door and holds it open until a second signal is received to close it.
Power-Boost: Offers a setting where power boost shuts off after five seconds once the latch position is reached.

Installation and Customization

Latch Selection: A dedicated dial allows for adjustable latch points ranging from 0° to 23°, with 13° (Setting 4) being the standard factory default.
Special Systems: For unique requirements, such as the Dor-O-Matic electric lock or 180-degree swings, a “Special System” version (85420-988) can be requested from the factory.
Logic Terminals: The box uses a 15-pin logic terminal for accessories. If replacing an older 9-pin terminal box, connected devices must also be replaced.

Safe Operation Note

Always disconnect the 115VAC input before adjusting the function or latch dials to ensure the new settings are properly applied. Upon power-up, the universal control box requires an activation signal before it begins its sizing mode.