Honeywell F-BO-AFE70 Series Installation, Connection, Commissioning, Maintenance

Contents

Honeywell F-BO-AFE70 Series Installation, Connection, Commissioning, Maintenance Manual pdf 11 page image

User Manual Series F-BO-AFE70 Chapter 2 • Manner of operation of a Purging unit2.2 Characteristic features of the Automatic Purging Unit F-BO-AFE70In contrast to the structure of conventional Purging units, the Automatic Purging Unit F-BO-AFE70only needs one (built-in) solenoid valve; furthermore, thanks to its thoughtful design, the Auto-matic Purging Unit F-BO-AFE70 ensures completely unhindered air flow from the sampling pipethrough the Purging unit to the evaluation unit of the ASD. The unit is controlled by an integratedcontrol board which has been developed for this special task and which replaces the PLC that isnormally used.Thanks to the use of high-quality materials and the high-precision processing, the Automatic Pur-ging Unit F-BO-AFE70 is designed to ensure flawless operation for many years.The trouble-free operation can be affected by various environmental influences, such as temperat-ure, humidity and air that is polluted by gases and aerosols, which can cause increased need formaintenance and reduce the life span due to wear and tear or contamination.The following features distinguish the Automatic Purging Unit F-BO-AFE70: 6 Purging programs, each with short or long Purging cycle they can be manually controlled by means of an external push-button internal clock for up to 6 daily timed, preventive Purging processes automatic start if fault message is received from aspirating smoke detector remote-controlled start (e.g., based on external calendar of factory or office hours) if there are several F-BO-AFE70's, a time delay can be used so as not to stress the com-pressed-air system master-slave mode with actuation of one or more „slaves“ monitoring of the supply voltage they can be used in a wide pressure range, F-BO-AFE70-2 up to 0.7MPa (7bar) andF-BO-AFE70-3 up to 1.0MPa (10bar) they are prepared for connection to all usual fire detection control panels, either via conven-tional lines or via loop modules.I56-4252-010D200-104-0011