The 5-Second Trick For hvac system diagram
GRD stands for Grille, Register and Diffuser. GRD implies a ingredient is possibly a grille, a sign-up or a diffuser. It is a generic term used to describe anything at all that’s supply/return and exhaust/ingestion air.From the refrigeration cycle, the refrigerant may be the motor vehicle that carries warmth from indoors to the outside in the cou