The 2-Minute Rule for hvac system design
GRD stands for Grille, Sign up and Diffuser. GRD signifies a component is either a grille, a sign up or possibly a diffuser. This is a generic term utilized to explain just about anything that’s offer/return and exhaust/ingestion air.On the other hand, some warmth pumps need a supplemental heating supply, which include electric heat strips or eve