The Hochiki ACC-EN(SCI) is an intelligent optical/heat multi-sensor with a built-in short-circuit isolator (SCI), in an ivory case, for the Hochiki ESP analogue addressable fire detection system. It combines a thermal element with a High Performance photoelectric smoke chamber and has three modes controlled from the fire alarm control panel: optical, heat or both.
Key features
- Integral short-circuit isolator
- Three user-selectable modes: optical, heat or combined
- Removable High Performance smoke chamber for easy maintenance
- Twin LEDs give 360° viewing
- Polling LEDs can be set to pulsing or non-pulsing from the panel (control panel compatibility required)
- Variable sensitivity
- Electronically addressed with the Hochiki TCH-B200 hand-held programmer
- LPCB and VdS approved to classes A1 and C
Technical specifications
- Ordering code: ACC-EN(SCI) (ivory)
- Operating voltage: 17 to 41 VDC
- Low power mode: 120 µA (typical)
- Quiescent current: 460 µA (typical) at 24 VDC
- Maximum current consumption: 30 mA
- Alarm current (controlled by the panel): 9.1 mA, excluding remote indicator
- Transmission method: digital communications using ESP
- Operating temperature: -10 °C to +50 °C
- Operating humidity: 95% RH non-condensing (at 40 °C)
- Storage temperature: -30 °C to +60 °C
- Case material: polycarbonate
- Weight: 95 g
- Dimensions: Ø100 x 45 mm (H)
- Compatible bases: YBV-R/4 SCI base (for SCI function); also YBN-R/3, YBO-BS, YBO-BSB2
- Base fixing centres: 48 to 74 mm
- Approvals: EN54-17, EN54-7 and EN54-5 (EN54-29 listed as pending); LPCB and VdS classes A1 and C
- Ingress protection: IP42
