www.ConceptDraw.com

, vanes, thermostat, thermosta, temperature controlled valve, supply outlet ceiling diffuser, supply air, return air, rectangular outlet, flow arrows, recessed radiator, pressure reducing valve set, pressure control, lined duct, hydronic radiant panel coil, hot water heating supply, hot water heating return, furnace, floor register, exposed radiator, exhaust fan, enclosed radiator projecting, enclosed radiator flush, duct-direction of flow, duct (1st figure width 2nd-depth), door louver, canvas connection,

Design elements - HVAC air conditioning