Test Operation Mini UM S/M58 Test Operation1. Test Operation1.1 Procedure and OutlineFollow the following procedure to conduct the initial test operation after installation.1.1.1 Check work prior to turn power supply on1.1.2 Turn power onCheck on refrigerant piping(V3180)Check on amount of refrigerantchargeCheck the below items.• Power wiring• Control transmission wiringbetween units• Earth wire Is the power supply single-phase 220-230V / 50Hz? Have you finished a ductwork to drain? Have you detach transport fitting? Is the wiring performed as specified? Are the designated wires used? Is the grounding work completed?Use a 500V megger tester to measure the insulation.• Do not use a megger tester for other circuits than 200-230V circuit. Are the setscrews of wiring not loose? Is the electrical component box covered with an insulation covercompletely? Is pipe size proper? (The design pressure of this product is4.0MPa.) Are pipe insulation materials installed securely?Liquid and gas pipes need to be insulated. (Otherwise causeswater leak.) Are respective stop valves on liquid and gas line securely open? Is refrigerant charged up to the specified amount?If insufficient, charge the refrigerant from the service port of stopvalve on the liquid side with outdoor unit in stop mode after turningpower on. Has the amount of refrigerant charge been recorded on “RecordChart of Additional Refrigerant Charge Amount”?Turn outdoor unit power on.Turn indoor unit power on.(V3056) Be sure to turn the power on 6 hours before starting operation toprotect compressors. Close outside panels of the outdoor unit.Carry out field setting onoutdoor PC board
