●●Install outdoor unitAir purging and leakage testElectric Wiring1. Disassemble handle of right side plate or front side plate of outdoor unit.4. Ensure if wire has been fixed well.5. Install handle or front side plate.NOTE:Wrong wiring may cause spare parts malfunction.After the cable fixed, make sure there should be a free space between the connection andfixing place on the lead wire.2. Take off wire clamp, connect and fix power connect cord to terminal of line bank.Wiring should fit that of indoor unit.3. Fix the power connection cable with wire clamp, for cooling and heating unit, then use thewire clamp to fix the signal control wire, then connect the corresponding connector.●5-1.0 10 pa(-76cmHg)Air purging and leakage testLiquid pipeGas pipeValvecapVacuumgaugeVacuum pumpFig.1. Connect charging hose of manifold valve to charge end of lowpressure valve (both high/low pressure valves must be tightlyshut).2. Connect joint of charging hose to vacuum pump.3. Fully open handle of Lo manifold valve.4. Open the vacuum pump to evacuate. At the beginning, slightlyloosen joint nut of low pressure valve to check if thereis air coming inside. (If noise of vacuum pump hasbeen changed, the reading of multimeter is 0) Thentighten the nut.5. Keep evacuating for more than 15mins and makesure the reading of multi-meter is6. Fully open high/low pressure valves.7. Remove charging hose from charging end of lowpressure valve.8. Tighten bonnet of low-pressure valve. (As shown in Fig.5)