ASHRAE BCxP case studies
ASHRAE BCxP · Put your knowledge to work in context.
The Building Commissioning Professional (BCxP) is an ASHRAE certification for practitioners who manage or participate in the commissioning process for buildings and their systems. It is aimed at commissioning providers, commissioning authorities, mechanical and electrical engineers, controls and test-and-balance specialists, facility managers, and owner's representatives who need to demonstrate competence across the full commissioning cycle rather than in a single trade. The ASHRAE BCxP case studies are 5 cases and about 2,622 words.
1OPR Gap Discovered After Design Is Complete
A new 90,000 ft² middle school is in the design development phase. The Cx provider was hired late, only after the 95% construction documents were issued for a design-assist review.
631 words, about 3 min2Pre-Functional Checklist Failure on a Chilled Water Loop
During construction-phase commissioning of a 12-story office tower, the Cx provider is reviewing pre-functional checklists (PFCs) submitted by the mechanical contractor for the primary chilled water loop. The loop has two 400-ton water-cooled chillers, three constant-speed primary pumps, and a bypass line.
479 words, about 2 min3Functional Test Fails on Economizer Changeover
A rooftop packaged unit serving a 6,000 ft² open office area is undergoing functional performance testing. The unit has a dry-bulb economizer with a differential enthalpy changeover and a modulating outdoor air damper.
541 words, about 3 min4Seasonal Testing Deferred to Next Cooling Season
A 200,000 ft² distribution center is completing construction in late October in a climate with design conditions of 95 °F dry bulb and 10% relative humidity in summer. The Cx provider's scope includes seasonal testing of the evaporative cooling units and the economizer sequence.
494 words, about 2 min5Contractor Submittal Omits Required Cx Documentation
A hospital addition is out for bid. The commissioning specification requires the mechanical contractor to submit, within 30 days of award: a commissioning plan for its scope, equipment startup checklists, a training plan, and a schedule showing Cx activities integrated with the construction schedule.
477 words, about 2 min