Potter VSR-AT Series Manual

Potter VSR-AT Series is an electronic vane type waterflow switch designed for wet sprinkler systems. It's UL Listed and FM Approved for use on steel pipes from 2” to 8”. This device incorporates a key feature - electronic retard - which allows for adjustable delay time to prevent false alarms. The VSR-AT can be remotely tested using the optional ATC-1 or ATC-4 controls, or integrated with a fire alarm panel for automated testing.

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Potter VSR-AT Series Manual - Waterflow Alarm Switch | Manualzz

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Key features

  • Electronic Vane Type
  • Wet Sprinkler Systems
  • UL Listed & FM Approved
  • Adjustable Retard
  • Remote Testing
  • Auto Test Feature
  • Trouble Indication
  • NFPA Compliant

Frequently asked questions

The VSR-AT is designed for use on steel pipes with schedules 10 through 40, in sizes 2” to 8”.

You can use the optional ATC-1 or ATC-4 controls or integrate it with an addressable fire alarm panel.

The VSR-AT will indicate a trouble condition on the ATC test switch and transmit a trouble signal to the fire alarm panel.

You can adjust the delay time by turning switch S1 to the desired setting (0 = no delay, 9 = 90 second delay). The factory setting is 3 = 30 second delay.
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