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cc <br />QUALITY CONTROLS )RPORATION <br />September 5, 2023 <br />Everett Riverfront Building B <br />Instrumentation and Controls <br />QCC Project No. P2073 <br />Subject: Building B Control Panel and Fire Alarm System Comm. Testing <br />The following actions were taken as part of the commissioning process at Everett Riverfront Building B <br />to verify successful hardwired communication between the Methane Gas Control Panel (MGCP-B) and <br />the Fire Alarm Control Panel (FACP). <br />Both the FACP and MGCP-B panels were put into test mode to prevent a full evacuation protocol to <br />occur while testing. <br />QCC simulated a high methane level alarm from the PLC to send a dry contact signal to the FACP. FPI <br />confirmed the FACP received the signal and would trigger a building evacuation when the system is in <br />normal operation. The FACP returns a confirmation signal back to the MGCP-B PLC to confirm the <br />system is performing an evacuation. This signal was verified to function correctly. <br />The MGCP-B also receives stairwell fan damper position and running feedback through the FACP. These <br />signals were simulated at the FACP and confirmed at the MGCP-B. <br />Sincerely, <br />Christina Hsu, P.E. <br />Project Engineer <br />