Multipole switch QRS-2

FM/FMCwith indicator lightwith reset

Overview
The Tyco® QRS-2 Quick Release Switch is an electronic accelerator for dry pipe and preaction sprinkler systems. It reduces valve operating time and minimizes false trip issues commonly associated with mechanical accelerators.

Product summary
The QRS-2 is a quick-opening device designed to reduce the operating time of a DPV-1 dry pipe valve or a DV-5A preaction/deluge control valve. The electronic accelerator automatically adapts to small and slow pressure variations while triggering on a steady pressure drop.

Key features

• Operates Tyco DPV-1 dry pipe or DV-5A preaction valve within four seconds
• Suitable for retrofitting existing mechanical accelerators when a releasing panel is present
• UL Listed and FM Approved
• Uses proven electric release technology common to electrically operated deluge and preaction systems

Compatibility and control

• Control up to two QRS-2 switches on one to two risers with Tyco DPV-1 Valve and AutoPulse Z-10 or Z-20 releasing panel
• Control up to four QRS-2 switches on one to four risers with Tyco DPV-1 Valve and Potter PFC-4410G3 or PFC-4410RC releasing panel
• Built-in low and high pressure alarm supervision
• Integrated indicator light for system status

Benefits

• Faster trip time — delivers water sooner with a quicker, more consistent trip compared to mechanical accelerators
• Reduced false trips — active air pressure monitoring compensates for small and slow pressure changes and trips on steady pressure drops
• Easy resetting — electronic reset removes the need for mechanical overhaul and reassembly

Technical specifications

• Product type: Electronic quick release switch / accelerator for dry pipe and preaction sprinkler systems
• Typical operation: Trips associated DPV-1 dry pipe or DV-5A preaction valve within four seconds
• Approvals: UL Listed and FM Approved
• Alarm supervision: Built-in low and high pressure alarm supervision
• Indicator: Integrated indicator light for system status
• Control capacity: Up to 2 switches on 1–2 risers (with AutoPulse Z-10/Z-20); up to 4 switches on 1–4 risers (with Potter PFC-4410G3 / PFC-4410RC)
• Reset: Electronic reset (no mechanical overhaul required)