Practical HVAC Engineering Training

Practical HVAC and plumbing training resources for engineers, designers, contractors, and project teams who need calculation-based design guidance.

This training section focuses on practical and challenging engineering topics such as psychrometric process lines, ERV/HRV calculations, duct pressure drop, hydronic flow, water heater sizing, ventilation load, and real project design decisions.


Psychrometric Chart Training Series

This series will focus on practical psychrometric chart applications used in HVAC design, not only basic definitions.

Cooling & Dehumidification

Practical process-line examples for cooling coils, humidity removal, apparatus dew point, and supply air condition.

  • Cooling coil process line
  • Humidity ratio reduction
  • Apparatus dew point concept
  • Bypass factor impact

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Room Sensible Heat Ratio

How to use RSHR to connect room sensible load, latent load, supply air condition, and coil leaving air condition.

  • RSHR line concept
  • Supply air condition estimate
  • Room sensible and latent load relationship
  • Common design mistakes

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Mixed Air & ERV/HRV Processes

Practical examples for outdoor air, return air, mixed air condition, and heat recovery impact before the cooling or heating coil.

  • Mixed air temperature
  • Outdoor air load effect
  • ERV/HRV leaving air condition
  • Ventilation load reduction

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Practical HVAC Calculation Topics

Duct Pressure Drop
Fan Static Pressure
ERV/HRV Effectiveness
Chilled Water GPM
Heating Water GPM
Water Heater Sizing
Outdoor Air Load
Cooling Coil BF / ADP


Downloadable Excel Tools

Downloadable Excel tools and worked examples will be added for practical HVAC design calculations, including psychrometric processes, duct pressure drop, ERV/HRV effectiveness, hydronic flow, and commercial water heater sizing.

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Need Help With a Real Project?

If you are working on a commercial, industrial, institutional, or tenant improvement project, submit your project information for HVAC and plumbing design support.

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