Haier AB092FDAHA User Manual - Page 11

Electrical wiring & Application control Wiring hole Remote controller wiring Application control Set capacity (SW05) Refrigerant piping Vacuum evacuation Evacuate from the outdoor cut-off valve with a vacuum pump. Never use encapsulated refrigerant in the outdoor unit for evacuation. Open all the valves Open all the valves of the outdoor unit. Check the gas leaking Check the joints and valve caps with a leakage detector or with soapsuds for gas leaks. Heat insulation All the liquid and gas tubes must have separate isolation. During cooling run, temperature at both the liquid side and the gas side is low. To prevent dew forming, heat isolation must be made. Materials used for the tube isolation at the gas side must withstand 120 temperature. The joints should be treated for heat isolation. With cut edge up (Attached diagram) Indoor unit Field tubing side Auxiliary isolated tube 12 9