Knowledge Base
Atlas Wiki
The ultimate technical resource for HVAC engineering.
Thermodynamics
The Vapor-Compression Refrigeration Cycle
Deep dive into the 4 stages of cooling: compression, condensation, expansion, and evaporation.
Electrical
Inverter vs Non-Inverter Compressors
Understanding variable frequency drives (VFD) and how they save up to 30% electricity.
Chemicals
R32 vs R410a Refrigerants
Analysis of operating pressures, GWP (Global Warming Potential), and flammability.
Electronics
Anatomy of an Inverter PCB
Identifying the IPM module, microprocessors, and optocouplers on modern circuit boards.
Industrial
Chiller Heat Exchanger Descaling
Standard operating procedure for chemical cleaning of shell and tube heat exchangers.
Engineering
Calculating AC Tonnage
How to properly calculate required BTUs based on room volume, insulation, and heat load.