FZB1.LOP-IP55 - Hard Wired Lobby Vent Control System Brochure

Smoke Vent Control Hard Wired Lobby Vent Control System This presentation describes in detail the Crawford Controls Smoke Vent Control System. The system is designed to cater for various configurations including powered ventilation as well as natural ventilation systems The controls consist of a number of outstations that are essentially Single Zone Smoke Vent Panels. These usually sit at each Floor Level of a High Rise Building and are connected to devices on the particular floor. When powered by Local or Common Battery Backed DC Supplies and interconnected these outstations form a complete Smoke Ventilation Control System Outstation At Each Floor level AOV Damper DOOR Belimo Maglock Actuator At each floor level an outstation is installed. The outstation will be supplied via a local 24 vdc Power Supply, usually Battery backed, or more usually from a common 24 vdc Power Supply. From this outstation the Floor Smoke Vent is connected. This can be a Window, Shaft Damper, Maglock or DC Actuator, or a combination of these. 24VDC Power AOV Damper DOOR Belimo Maglock Actuator At Each Floor level Outstation FOS 2 or 3 Position Fireman’s Switch 24VDC Power In order to provide attending Fire Officers with control over the Floor in Fire Condition and for Manual/General maintenance purposes it is usual that a Floor Override Switch (Fireman’s Switch) is installed. In a Natural Vent System Installation this would be either a 2 Position Rocker/Key Switch with Auto and Close positions, or a 3 Position Rocker/Key Switch with Auto, Open and Close positions. FOS At Each Floor level AOV Damper DOOR Belimo Maglock Actuator 2 or 3 Position Fireman’s Switch Outstation FA or Smoke Detector Relay Contact 24VDC Power To provide a fully automatic control system a Smoke Detector with a Volt Free Relay Contact or a Fire Alarm Volt Free Contact are wired into each outstation. This contact changes state (opens) on detection of Smoke or when a Fire Alarm Active signal is initiated. FOS At Each Floor level AOV Damper DOOR Belimo Maglock Actuator 2 or 3 Position Fireman’s Switch Outstation 24VDC Power When the system detects Smoke the Outstation picks up that signal and opens the Vent. In a Natural Ventilation System smoke moves ‘naturally’ through the opened vent. In a powered vent (fan assisted) system the smoke is drawn via a shaft and out of the building Latched FOS Window Powered by 24vdc Actuator 2 or 3 Position Fireman’s Switch Outstation FA or Smoke Detector Relay Contact 24VDC Power Latched FOS 24VDC Power Latched FOS 24VDC Power Latched FOS 24VDC Power Latched FOS 24VDC Power Control Interlink is made via a multicore cable. The number of cores is dependant on the project. Fire Alarm Loop – (Minimum Requirement) Common Vent Loop – (Option) Fire Alarm Return Loop – (Latch Option) Boost Loop – (Powered Vent Option) Typical 5 Storey Building with Windows to the outside of the building Control Interlink Control Interlink Control Interlink Control Interlink Latched FOS 2 or 3 Position Fireman’s Switch Outstation FA or Smoke Detector Relay Contact 24VDC Power Latched FOS 24VDC Power Latched FOS 24VDC Power Latched FOS 24VDC Power ACTIVATED FOS 24VDC Power To ensure there is no cross contamination of Smoke from Fire Floor to Non Fire Floors it is recommended to install the Latching Board Extension along with Operator Interface at each Outstation. Control Interlink Control Interlink Control Interlink Control Interlink Window Powered by 24vdc Actuator Typical 5 Storey Building with Windows to the outside of the building SIMULATION Latched FOS 2 or 3 Position Fireman’s Switch Outstation FA or Smoke Detector Relay Contact 24VDC Power Latched FOS 24VDC Power Latched FOS 24VDC Power Latched FOS 24VDC Power ACTIVATED FOS 24VDC Power A Common Vent would be within the Stairwell or at the head of a Shaft or both. Control Interlink Control Interlink Control Interlink Control Interlink Shaft Vent Typical 5 Storey Building with Windows to the outside of the building with Common Vent at the head of the Fire Shaft and separate Stair Vent - SIMULATION Stair Vent Stair Well OUTSTATION ENCLOSURE IP65 – RAL7035 Dims – 300 x 300 x 120 The Outstation Enclosure is a wall mounting unit. The fixing holes are internal. The lid is removable via 4 twist to tighten screws in each corner. The side walls are solid so all cable glands must be cut accordingly.* * Recommend bottom entry Operator Control Option – Local Indication and Control Base Board and Latch Extension Plug in Terminals 20-22 shown un plugged 6.3amp Fuse Power On Lamp Power On and Common Fire Lamps System Activated Buzzer fitted Internally on Operator Control Board Base Board and Latch Extension Connections 24 VDC POWER Connect the DC power to terminals 1 and 2. Loop from 1st outstation to the last when using a common BBU Operator Interface Connection Easily removable plug in connection Latch Board Connection Easily removable plug in connection Auto Reset Link – LK5 When removed each floor must be Reset individually after Power Loss Smoke Detector Reset - LK3 When removed a NC Pushbutton contact can be connected at the 2 terminals to allow manual reset (drops power off momentarily) Master Override Terminals When connected to a single Master Fireman’s Switch this facility allows the control of the Fire Floor and Common Vent/Fan from a Strategically Installed Position Latch Board Link – LK4 Must be removed when using the Latch Extension Board Base Board Latch Board Base Board and Latch Extension Connections Fireman’s Switch Connect the common to terminal 5, Auto to terminal 6 and Close to terminal 7. If no FOS is fitted 5 and 6 must be permanently linked. Base Board and Latch Extension Connections Smoke Detector or FA Non Latch Only Smoke Detectors need a 24vdc + and -. These connect to terminals 8 and 10. The signal form the smoke detector connects to terminal 9a if no latch board is fitted The FA contact connects to terminals 8 and 9a Smoke Detector or FA Latch Only Smoke Detectors need a 24vdc + and -. These connect to terminals 8 and 10. The signal form the smoke detector connects to terminal 9b on the latch board as indicated. The FA contact connects to terminals 8 and 9b Base Board and Latch Extension Connections Common Vent and Common Vent Loop Where a system has a common vent that operates should a fire be detected on any floor, then the common vent loop must be utilised. At the source of the loop the Link LK6 must be fitted to provide 24vdc. In subsequent outstations LK6 must be removed. Terminal 12 is connected in the source outstation as the outgoing loop. In subsequent outstations the loop enters at terminal 11 and leaves at terminal 12. At the last/top outstation the common vent should be connected to terminals 12 and 13. If the system is powered vent (fan) then at the last/top outstation the loop enters at terminal 12 and the common Vent Signal is taken to a separate Fan Panel via terminal 13. * * Fan Panel Design must be by Crawford Controls for the Fan Inverter Panel for this function to operate. Base Board and Latch Extension Connections Note where Actuators are used for common vents If the common vent is an actuator and is controlled by reversing the polarity then a small interface arrangement is required. This interface transposes a standard 24vdc signal into a reversing polarity signal Base Board and Latch Extension Connections Boost Vent Loop Where a system has a common powered vent (Fan) that operates should a fire be detected on any floor, and a Fireman’s Switch with Boost position is fitted at each floor then the Boost Loop must be utilised. At the source of the loop the Link LK1 must be fitted to provide 24vdc. In subsequent outstations LK1 must be removed. Terminal 17 is connected in the source outstation as the outgoing loop. In subsequent outstations the loop enters at terminal 16 and leaves at terminal 17. At the last/top outstation the loop enters at terminal 16 and the common Boost Signal is taken to a separate Fan Panel via terminal 17. * * Fan Panel Design must be by Crawford Controls for the Fan Inverter Panel for this function to operate. Base Board and Latch Extension Connections Base Board and Latch Extension Connections Fire Loop Outstations require a Fire Loop in order to have each outstation communicating, therefore providing a complete system. At the source of the loop the Link LK2 must be fitted to provide 24vdc. In subsequent outstations LK2 must be removed. IMPORTANT – Latch Board Option At the last/top outstation the loop enters at terminal 18 and the Fire Loop Signal is then linked from terminal 19 to terminal 30 on the extension latch board. Terminal 31 is then used to provide the latch loop (see following slide) Base Board and Latch Extension Connections Base Board and Latch Extension Connections Fire Latch Return Loop Outstations require a Fire Latch Loop in order to have each outstation communicating, therefore providing a complete system. At the source of the loop (top outstation only) a Link must be fitted between terminals 19 and 30 to provide 24vdc. In subsequent outstations the latch loop simply enters at terminal 30 and leaves at terminal 31 In the last outstation (bottom) terminal 31 would normally be left free. However this terminal along with terminal 24 (-) provides a ‘System Active’ signal by default. At 24vdc the system is deemed healthy. If this 24vdc is lost then the system is Active. This voltage signal can be used to drive a remote lamp of relay and to signal BMS. Base Board and Latch Extension Connections Return Fire latch Loop In at term 30 Out at term 31 Base Board and Latch Extension Connections Floor Vents The Floor Smoke Vent can be Dampers, Maglocks, Doors and Chain Drives. The base board caters for all options and in some circumstances can handle multiples. The maximum load should be kept at 6 amp per floor. The outstation boards are fused at 6.3amp Terminals 14 and 15 provide a reverse polarity supply for door actuators and chain drives etc. Terminals 20, 21 and 22 are provided for Maglocks and Belimo Motors. In general terminals 20 and 21 are used for Maglocks and any other device requiring a fail safe 24vdc supply. If Belimo Motors with a separate signal core are fitted then terminal 22 is also required. Normally a permanent 24vdc is required via terminals 21 and 22 and a signal core from terminal 20 when on (24vdc) closes the damper and when off (0vdc) opens the damper NOTE The board is not limited to the options above. Other devices may be compatible. Base Board and Latch Extension Connections Master FOS Fireman’s Master Switch Termination Take +24vdc to FOS Common Terminal, and 34 +36 to FOS Auto and Close Terminals. Loop Terminals 34 and 36 to all other Outstations Ignore Term 34 if Auto – Close only is required REMOVE ALL LINK 3 JUMPERS Set Up at 1st Outstation (Usually Closest to the Master FOS Set Up for ALL Intermediate Outstations Set Up for LAST Outstation Fireman’s Master Switch Operation If Auto is selected at the Master Switch then Floor FOS’s can take control. These are interlocked floor to floor so only 1 floor can be operated at any time. At any time the Master Switch is able to take control of an Active System. (Active Floor Only) Active would be defined as Local FOS operated (NOT IN AUTO) or FA/Smoke Detected LINK 3 REMOVE Fireman’s Master Switch Diode Termination A Link with IN5004 Diode is required between Terminal 9a and 34 when using Master FOS. 1st Outstation ONLY Passive from 9A-34 direction