Haier AD362AMBEA Instruction Manual

INSTALLATION MANUAL FOR OUTDOOR UNIT23OpenHexagon wrench(attachment)(1) Outline piping4. Refrigerant piping(2) Piping size(3) Limitations for one way piping length and vertical height difference.One way piping length: less than 30m (for 24,28 series).less than 50m (for 36,42 series).Vertical height difference: Less than 15m (for 24,28 series).less than 30m (for 36,42 series).(4) Air purgeb. For 36,42 series.Carry out the air purge of the indoor unit and refrigerant piping by vacuuming.Procedures:1) Tighten all the flare nuts of the piping on the side of indoor and outdoor units so that there is no leakage.2) Carry out vacuuming from the service valve charge port with the service valves (both liquid and gas side)of the outdoor unit fully closed.3) After vacuuming, remove the cap nut for the valve stem, and tighten the cap nuts (cap nuts for valve stemand charge port) with service valve (both liquid and gas) fully opened.1) Remove the hexagonal cap nut.2) Operate the valve using a hexagonal wrench to open by left turnand to close by right turn.3) Tighten the hexagonal cap nut after the piping works.(5) Method of opening and closing service valve of outdoor unit90*0.5OutdoorunitService valveFlare connectionCheck jointGas pipeLiquidpipeFlare connectionIndoorunitModelGas pipingLiquid piping19.05(3/4")x1.0mm9.52(3/8")x0.8mm15.88(5/8")x1.0mm9.52(3/8")x0.8mmInstall the removed flared nuts to the pipes to be connected,then flare the pipes.Precautions for refrigerant pipingDo not twist or crush piping.Be sure that no dust is mixed in piping.Bend piping with as wide angle as possible.Keep insulating both gas and liquid piping.Check flare-connected area for gas leakage.a. For 24,28 series.Purge air out of indoor unit and piping as shown in the Fig.(1) Remove the valve cap on 2-way valve in outdoor unit.(2) Loosen by 1-1.5 turn the flare nut of gas pipe, which is connectedto 3-way valve.(3) Loosen the valve rod of 2-way valve by 90 degrees (use a hexagonwrench) for about 15 seconds, air will be pushed out from flare nuton gas pipe.(4) Open 2-way and 3-way valves using specified torque.(5) Tighten the caps on the valves with specified torque.(6) Conduct gas leakage using gas leakage detector or soap water.90Flare nutGas pipe15.88mm(5/8")Liquid pipe9.52mm(3/8")When additional refrigerant piping is necessary, first purge air out of connecting pipe by external gas,then drive out the excessive refrigerant by purging method.Brand new unit is charged 80g more refrigerant than spec. This is only for first installation to purgeair inthe indoor unit and connecting pipe.Note:36,42 series 24,28 series