WAC 51-11C-40323. Section C403.2.3 — Fault detection and diagnostics

C403.2.3 Fault detection and diagnostics. New buildings with an HVAC system serving a gross conditioned floor area of 100,000 square feet (9290 m 2 ) or larger shall include a fault detection and diagnostics (FDD) system to monitor the HVAC system's performance and automatically identify faults. The FDD system shall: 1. Include permanently installed sensors and devices to monitor the HVAC system's performance. 2. Sample the HVAC system's performance at least once every 15 minutes. 3. Automatically identify and report HVAC system faults. 4. Automatically notify authorized personnel of identified HVAC system faults. 5. Automatically provide prioritized recommendations for repair of identified faults based on analysis of data collected from the sampling of HVAC system performance. 6. Be capable of transmitting the prioritized fault repair recommendations to remotely located authorized personnel. EXCEPTION: Group R-1 and R-2 occupancies.