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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

When a fire alarm control unit (FACU) is replaced, which ULC standard requires a full verification of the system's operation?

Whenever a component is replaced or added, S537 requires a verification of the modified portion to ensure S524 compliance. S536 is for regular maintenance, not

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Question: When a fire alarm control unit (FACU) is replaced, which ULC standard requires a full verification of the system's operation?

Answer options: ✅ CAN/ULC-S537

  • CAN/ULC-S536
  • CAN/ULC-S524 only
  • BC Building Code only

Correct answer: CAN/ULC-S537

Explanation: Whenever a component is replaced or added, S537 requires a verification of the modified portion to ensure S524 compliance. S536 is for regular maintenance, not post-modification commissioning.

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