ICAF System with electric Failsafe release - FIREFLEX SYSTEMS

ICAF - Integrated Compressed Air Foam SystemSystem Trim SectionPage 1 of 4ICAF System with Electric Fail-safe Release1. DescriptionThe ICAF System utilizes a Flow Control valve (B14) tocontrol water flow into system piping equipped with openrotating spray nozzles. The system piping remains emptyuntil the Flow Control Valve is activated by operation of therelease system.In fire condition, when the detection condition is satisfied theARC-1 Control Panel energizes the Solenoid Valve (R2)open, the pneumatic control line is then pressurized causingthe water, air and foam pneumatically activated controlvalves (A1, B9 & F1) to open simultaneously and generatethe CAF through a piping system into the discharge devicesand to be discharged over the area served by the dischargedevices.Electric Fail-Safe Release means that if the AC Power failsand the battery backup expires while the system is operating,the system will fail-safe, and continue flowing until AC Poweris restored or the system is manually shut-off2. Normal conditions1. ARC-1 Control panel of the ICAF System:a) Green LAMP for power is activated in continuousmanner.b) All other LAMPS are deactivated.c) Alpha-numeric Display shows default screen" SYSTEM NORMAL"2. Valves:a) Main water supply control valve (B10) is OPEN.b) All upstream water supply valves are OPEN.c) Priming valve (B1) is OPEN.d) Flow test valve (B6) is CLOSED.e) System main drain valves (B16) are CLOSED.f) Alarm test valve (B5) is CLOSED.g) Manual emergency release valve (R1) is CLOSED(handle in NORMAL position).h) System flushing valve (A3) is CLOSED.i) Foam injector flushing valve (F5) is CLOSED.j) All gauge valves are OPEN.3. Gauges:a) Water supply (B12) - at water supply pressureb) Priming chamber (B11) - should be equal to, orhigher than, water supply pressure (B12).c) Air supply pressure (A4) is between 100-135 psi.d) Foam injection line pressure is 0 psi.4. Air supply:a) Air supply is in NORMAL condition (see Air Supplysection for details).5. Foam supply:a) Foam supply is in NORMAL condition (see FoamSupply section for details).REFER TO NEXT PAGE TO VIEW TRIM SCHEMATIC.FM-0723-0-10 A