The Hochiki ACC-EN(WHT) is an intelligent multi-sensor in a white case for the Hochiki ESP analogue addressable fire detection system. It combines a thermal element with Hochiki’s High Performance photoelectric smoke chamber. It has three modes, controlled from the fire alarm control panel, so the optical element, the thermal element or both can be used to make the fire decision.
Key features
- Three user-selectable modes: optical, heat or combined
- Removable High Performance smoke chamber for easy maintenance
- Twin LEDs give 360° viewing: green when polling, red in fire
- 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
- SIL Level 2 capable variants available
Technical specifications
- Ordering code: ACC-EN(WHT) (white)
- Operating voltage: 17 to 41 VDC
- Low power mode: 120 µA (typical)
- Quiescent current: 400 µA (typical)
- 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: YBN-R/3, YBO-BS, YBO-BSB2 and YBV-R/4 (for SCI sensors)
- Base fixing centres: 48 to 74 mm
- Approvals: EN54-7 and EN54-5 (EN54-29 listed as pending); LPCB and VdS classes A1 and C
- Wind exposure (ref. EN54-7): 1 ± 0.2 m/s
- Ingress protection: IP42
