5 Simple Statements About hvac system design Explained
GRD stands for Grille, Register and Diffuser. GRD signifies a ingredient is possibly a grille, a sign up or possibly a diffuser. This is a generic expression made use of to describe just about anything that’s source/return and exhaust/ingestion air.EAD stands for Exhaust Air Duct. EAD is usually found in duct format drawings, specifically for the