Carrier 42QZA009DS Series Installation Manual

Also see for 38QUS009DS: Owner's manual Installation manual Service manual Installation manual Installation manual

Contents

7. INFORMATION SERVICINGGB-197.19 RECOVERYCAUTIONWhen removing refrigerant from a system, either for service or decommissioning, it is recommended goodpractice that all refrigerants are removed safely.When tranferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders areemployed. Ensure that the correct numbers of cylinders for holding the total system charge are available. Allcylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant(i.e specialcylinders for the recovery of refrigerant). Cylinders shall be complete with pressure relief valve and associatedshut-off valves in good working order.Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs.The recovery equipment shall be in good working order with a set of instructions concerning the equipment thatis at hand and shall be suitable for the recovery of flammable refrigerants. In addition, a set of calibratedweighing scales shall be available and in good working order.Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using the recoverymachine, check that it is in satisfactory working order, has been properly maintained and that any associatedelectrical components are sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer ifin doubt.The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and therelevant Waste Transfer Note arranged. Do not mix refrigerants in recovery units and especially not in cylinders.If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptablelevel to make certain that flammable refrigerant does not remain within the lubricant. The evacuation processshall be carried out prior to retruning the compressor to the suppliers. Only electric heating to the compressorbody shall be employed to accelerate this process. When oil is drained from a system, it shall be carried outsafely.7.20 TRANSPORTATION, MARKING AND STORAGE FOR UNITS1. Transport of equipment containing flammable refrigerantsCompliance with the transport regulations2. Marking of equipment using signsCompliance with local regulations3. Disposal of equipment using flammable refrigerantsCompliance with national regulations4. Storage of equipment/appliancesThe storage of equipment should be in accordance with the manufacturer’s instructions.5. Storage of packed (unsold) equipmentStorage package protection should be constructed such that mechanical damage to the equipment inside thepackage will not cause a leak of the refrigerant charge.The maximum number of pieces of equipment permitted to be stored together will be determined by localregulations.