ASHRAEASHRAE 34Designation and Safety Classification of Refrigerants.Referenced across 7 Anvilfield field guides. Field guides that apply ASHRAE 34HVACHVACChiller types and selectionHVACRefrigerant charging field guideHVACRefrigerant leak detection field guideHVACRefrigerant line sizing field guideHVACRefrigerant types and A2LHVACRefrigeration cycle field guideHVACVRF commissioning field guide Often cited alongsideASHRAE 15ASHRAE 90.1 Compare your optionsCentrifugal chiller vs Screw chillerThermostatic expansion valve (TXV) vs Fixed orifice (piston)VRF system vs Split system Browse all codes and standards