A positive test for correct operation of critical alarms is essential. 

At a minimum this should be performed as part of a regular yearly audit that includes verification of the alarm relays, alarm annunciators, fault relays and all corrective actions, including:

  • shut-down 
  • emergency-stop 
  • dampers 
  • off-coat 
  • burners 
  • horns 
  • lights

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