Indicators on hvac system working principle You Should Know
GRD stands for Grille, Sign-up and Diffuser. GRD signifies a component is either a grille, a sign up or even a diffuser. This is a generic time period utilized to describe anything at all that’s source/return and exhaust/intake air.Contrarily, non-DX or indirect expansion refers to machines like chillers which use chilled h2o given that the mediu