CSLB C-20 HVAC ContractorPlanning and LayoutEasy
A mechanical blueprint includes an equipment schedule table listing unit tag 'FAU-1' with a specified airflow of 1,600 CFM and a rated output of 80,000 Btu/hr. Before beginning rough-in, where should a technician look on the plans to confirm this equipment information?
- AThe electrical panel schedule
- BThe architectural elevation drawings
- CThe structural framing plan
- DThe mechanical equipment schedule
Show answer & explanationAnswer & explanation
Correct answer: D. The mechanical equipment schedule
Mechanical equipment schedules are tables on the blueprints (often on the mechanical sheet) that list each piece of equipment by tag along with its specifications such as CFM, Btu/hr rating, voltage, and model number. Technicians reference this schedule to confirm design intent before installation.
Why the other options are wrong
- A. Electrical panel schedules cover circuit breakers, not HVAC equipment specs.
- B. Elevations show building exterior views, not equipment specs.
- C. Structural plans show framing members, not mechanical equipment data.
Mechanical Equipment Schedule
A table on mechanical blueprints listing tagged equipment with performance specifications such as CFM, capacity, and electrical requirements.
- Uses unit tags like AHU-1, FAU-1
- Cross-referenced with floor plan symbols
- Essential for verifying design intent before installation
Memory trick: Tag it, table it, trust the schedule.