The Viking Firecycle® III Multi-Cycle Wet System utilizes a Viking Model J Flow Control Valve and a VFR-500 Control Panel with additional valves, devices, and trim to form a unique operating system.

The cycling wet configuration operates the Firecycle® III System as a normal wet pipe system with the abilities to sense when the fire has been controlled and to turn off the water flow automatically after a pre-programmed “Soak Timer” has been satisfied. If the fire rekindles, Firecycle® III will initiate the sequence again. This unique cycling feature will continue to operate as long as necessary, provided that the panel receives power, and helps to minimize water usage, water damage, and the threat of pollution to surrounding areas. Batteries are available to provide up to ninety (90) hours of emergency power. If the AC power fails and the battery backup power expires while the system is operating, the system will “fail-safe”, and continue flowing until AC power is restored or the system is manually shut-off. The Firecycle® III Cycling Wet Pipe System has several “fail-safe” features that are not available on standard wet pipe systems. Refer to section 5. Operation for details. TRIMPAC® Model E-3 is a trim package for a Firecycle® III and Firecycle® III-OH System and is manufactured and factory leak tested in a metal enclosure. The standard trim normally required on a Firecycle® III and Firecycle® III-OH System has been preassembled into a single cabinet. TRIMPAC® Model E-3 provides access doors for the emergency release and alarm test valve for manual operation of these trim valves. TRIMPAC® Model E-3 is equipped with a priming water pressure gauge view-ports for easy monitoring of water pressures, and with a monitored solenoid (NC) or a non-monitored solenoid (NO). TRIMPAC® Model E-3 eliminates the installation of alarm trim piping and release trim piping at the flow control valve. The enclosure protects trim valves from inadvertent operation. The included stainless steel hoses (or field provided hard piping) from the valve body to the enclosure assembly allows the assembly to be installed remote of the sprinkler system riser. A Water Flow and Alarm Switch and System Drain Package is required and is to be ordered based on the flow control valve size.