NEBB Testing, Adjusting and Balancing Certified Professional (CP) case studies
NEBB Testing, Adjusting and Balancing Certified Professional (CP) · Put your knowledge to work in context.
The NEBB Testing, Adjusting and Balancing Certified Professional (CP) credential is an individual certification offered within NEBB's TAB discipline. NEBB describes itself as the premier international certifying association for firms and individuals that deliver high performance buildings and systems, and states that NEBB Certified Firms, Professionals, and Technicians uphold the highest standards in areas including testing, adjusting and balancing. The TAB discipline sits alongside seven others - BET, Cx, CPT, FHT, RCx, and S&V among them - and is overseen by a dedicated TAB committee of practitioners, which NEBB says ensures exacting standards throughout the qualification process. The credential is aimed at experienced TAB field personnel who already perform airflow, hydronic, and system-balancing work and want independent verification of their competence, often as the individual who supervises NEBB-related work for a certified firm. The NEBB Testing, Adjusting and Balancing Certified Professional (CP) case studies are 5 cases and about 2,403 words.
1VAV Box Minimum Airflow and Reheat at Low Inlet Static
A 24-box VAV system serves a two-story office. Zone 5 is a west-facing perimeter zone with a 1,400-cfm maximum and a 420-cfm minimum plus an 8-kW electric reheat coil.
533 words, about 3 min2Low Chilled-Water Delta-T Caused by a Three-Way Valve Bypass
AHU-3 serves an 8,000-cfm office floor with a 6-row chilled-water coil. Design conditions are 55°F supply air, 76°F return air, 44°F entering water, 56°F leaving water, 30 gpm, and 15 ft coil pressure drop.
488 words, about 2 min3Laboratory Pressurization Conflict with Fume Hood Exhaust
A university laboratory has four 6-ft-wide fume hoods and one general exhaust. Design exhaust is 1,000 cfm per hood at an 18-in.
492 words, about 2 min4Minimum Outdoor Air with Return-Fan Tracking and Economizer Lost Motion
AHU-5 serves a 20,000-sq-ft, 200-person assembly space. Design supply is 20,000 cfm; design outdoor air is 3,000 cfm based on ASHRAE 62.1 default occupancy of 5 cfm/person plus 0.06 cfm/sq ft.
443 words, about 2 min5Proportional Balancing of a Direct-Return Chilled-Water Loop
A secondary chilled-water loop serves six AHUs. Design flows are AHU-1 120 gpm, AHU-2 100 gpm, AHU-3 80 gpm, AHU-4 60 gpm, AHU-5 60 gpm, and AHU-6 40 gpm, for 460 gpm total.
447 words, about 2 min