The ADR-833 Analog Addressable Extinguishing Control Unit supervises, controls, and activates automatic extinguishing systems. The ADR-833 is a multi-input/output control unit connected to and supervised by the ADR-3000 analog addressable control panel. The fire detectors assigned to the automatic extinguishing system are monitored by the analog addressable control panel. The extinguishing control and command are performed by the ADR-833 on instruction from the ADR-3000.
The ADR-833 Automatic Extinguishing Control Unit is intended to supervise, control and activate automatic extinguishing systems.
The ADR-833 is a multi-input/output control unit connected and supervised by the analog addressable control panel ADR-3000.
The fire detectors belonging to the automatic extinguishing system are monitored from the analog addressable control panel. The extinguishing control and command are performed by the ADR-833, via the analog detection loop.
The ADR-833 contains 3 supervised outputs, 2 relays and 3 supervised inputs. The outputs activate: (a) the automatic extinguishing cylinders, (b) the fire alarm horn and (c) the evacuation annunciators. The relays are: one for problem and the other for alarm. The inputs are: (a) manual extinguishing release – electrically, (b) extinguishing inhibit and (c) extinguishing cylinder pressure switch (refer to figure 1).
The ADR-833 operates on 24Vdc supply fed directly from the control panel or from a remote power supply such as Telefire's ADR-34A Analog Addressable Power Supply or ADR-9090P Analog Addressable Power Supply.
The ADR-833 is an analog addressable device controlled by the analog addressable control panel and occupies only one address, even with multiple inputs and outputs