Mechanical (M) Plan Set — Comprehensive Essay Test

Complete all answers and submit to education@sfjohnsonconsulting.com.

Student Name: 1. Describe how to read HVAC floor plans and identify equipment, ducts, VAVs, and diffusers. 2. Explain the purpose of equipment schedules and the data needed for procurement and power/condensate coordination. 3. Discuss duct sizing conventions, transitions, and how fittings affect pressure and labor. 4. Summarize how the M-set coordinates with the Reflected Ceiling Plan (RCP) and Structural (S) set for penetrations and supports. 5. Explain refrigerant piping, condensate routing, and roof/curb details for rooftop units (RTUs). 6. Describe controls diagrams/sequences and their impact on commissioning and schedule. 7. Identify common code requirements (clearances, outside air, fire/smoke dampers) found on M-plans. 8. Evaluate typical RFI items in M-plans and how to document them early. 9. Outline an HVAC takeoff approach (duct, pipe, insulation, accessories) using plans and schedules. 10. Describe how to coordinate mechanical rooms and shafts with other trades to avoid clashes. Responses will be sent to education@sfjohnsonconsulting.com for grading.

Instructor Answer Key — Unlock After Review

1. Plan symbols/tags; supply/return/exhaust; diffuser types and flow.

2. Schedules: CFM/MBH/EER/SEER, volt/phase, weight, curb, condensate.

3. Friction rates; fittings increase loss; labor on transitions/taps.

4. RCP alignment for diffusers; S for sleeves, openings, supports.

5. Proper slopes, traps, UV protection; curb height/attachment.

6. Sequences define start/stop, safeties, BAS points, test & balance.

7. Codes for OA%, clearances, smoke/fire damper locations.

8. Tight shafts, missing elevations, unclear supports, condensate routing.

9. Quantify by system; include hangers, insulation, accessories.

10. Maintain access/clearances; clash coordination with MEP/structural.

M Plan Test

Mechanical (M) Plan Set — Comprehensive Essay Test

Instructor Answer Key — Unlock After Review

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