Airflow: 400 CFM per Ton, Room CFM by Load Share & Register Count (Chart)
This lesson is part of the course
In this lesson
You set the system airflow from the 400 CFM per ton rule, split it over the rooms by their share of the cooling load, round up the number of supply registers and chart the room airflows.
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Lessons in this course
- HVAC Units: BTU/h, Tons, kW and °F/°C (incl. ΔT) Locked
- Conduction Heat Loss: U × A × ΔT for Walls, Windows, Doors & Ceiling Locked
- Infiltration & Ventilation Load: CFM × 1.08 × ΔT and the Latent 0.68 Factor Locked
- Room-by-Room Load Summary, BTU per ft² & Equipment Size in Tons Locked
- Airflow: 400 CFM per Ton, Room CFM by Load Share & Register Count (Chart) Locked
- Duct Sizing: Area = CFM ÷ FPM, Round Diameter & Velocity Check Locked
- Superheat & Subcooling: Readings vs Targets for TXV and Piston Systems Locked
- Efficiency & Operating Cost: SEER, EER, COP and Annual Savings (Chart) Locked