BLASI – Emergency open-close
The BLASI Emergency open-close mechanism provides dual-function manual override for automatic door operators during power failures or emergencies. This safety-critical component enables both rapid full-open positioning for unobstructed egress and controlled closing for security restoration using a single lever or key operation. Engineered for all BLASI sliding, swing, and revolving door systems, it ensures life-safety compliance while maintaining operational flexibility across commercial installations.
Product Details
Designed as the primary emergency control for BLASI automatic door systems, the Emergency open-close function combines bevel pinion disengagement with directional drive control that positions doors in full-open configuration for immediate free passage during fire alarms or power outages, then enables powered or manual return-to-closed with security locking upon signal restoration. The bistable lever mechanism maintains positive open/closed positioning without spring return, preventing accidental re-engagement during crowd evacuation while supporting one-person operation common in facility response protocols.
Robust construction withstands repeated emergency cycling characteristic of high-occupancy commercial buildings, while color-coded indicators and standardized mounting ensure universal technician recognition across GP, K, and revolving door platforms. Integrated limit sensing automatically transfers control back to primary automation upon power restoration and manual reset, eliminating partial engagement risks.
Technicians value the tool-free operation and self-diagnostic feedback that confirms complete disengagement, while facilities managers specify this proven dual-function mechanism confident in its ability to satisfy stringent life-safety codes, provide unambiguous emergency procedures, and minimize service disruptions across retail centers, hospitals, and office complexes requiring guaranteed egress compliance with operational continuity.
Article No: 7010009
Additional information
| Brand | BLASI |
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