Telescopic function for bridging unfavorable lintel situations · Connection to 230 V power supply and supply of the hold-open device with 24 V DC · Power supply of the hold-open system is interrupted in case of alarm and doors close · Integrated smoke switch with automatic alarm threshold tracking · Compensates for slight contamination of the smoke chamber and thus increases the service life · Optical display of the current status of the control unit · Additional smoke switches connectable · Applications: Approved in all GEZE hold-open devices for early detection of fire and smoke · Difficult lintel situations with e.g. too little space above the smoke chamber · Mounting above the door opening on the vertical wall · Mounting with surface-mounted cable feed possible Further technical characteristics: · LED display: yes · Smoke detection: scattered light principle · Subject to inspection: yes
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