Haier HSU218VHG-W Installation Manual

Also see for 2HUM18HC03-R2: Installation manual Installation manual Operation manual Service manual

Contents

3Outdoor unitInstall according to the instructions on the 1st page of this manualWhen bending the interconnect tubing, ensure the radius is at least 1 1/4" to 1 3/4",30mm to 40mm to ensure against crushing the tubing.Connecting the pipe of gas side rst makes working easier.Ensure the interconnecting tubing is approved for R410A.Installation of Outdoor UnitHalf union Flare nutTorque wrenchSpannerForced fastening without careful centering maydamage the threads and cause a leakage of gas.1Connection of pipes21. If the supply cord is damaged, it must be replaced by the manufacturer or itsservice agen. The type of connecting wire is H05RN-For H07RN-F.2. If the fuse on PC board is broken please change it with the type of3. The wiring method should confirm to local electrical codes.4. Use an HVACR circuit breaker or time delay fuse.T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor), the fuse must bechanged by an authorized servicer.4 Connecting the indoor/outdoor electric CableRemoving the wiring coverRemove terminal cover at right bottom corner of indoor unit, then take offwiring cover by removing its screws.1. Insert the cable from the outside into the unit through the samehole that has the interconnecting tubing.2. Pull out the cable on the front side, and connect the cablemaking a loop.Note When connecting the cable, con rm the terminal number of indoor andoutdoor units carefully. If wiring is not correct, the unit will not operateWhen connecting the cable after installing the indoor unitWhen connecting the cable before installing the indoor unitHSU218VHG-W2HUM18HC03/R2(DB)Insert the cord from the back side of the unit, then pull it out on the front side.Fasten the unit wire harness to the conduit holder using the lock nut.Position the conduit holder to its original state using screw.Pipe Diameter( ) Fastening torqueLiquid side6.35mm(1/4") 18N.m/13.3Ft.lbsLiquid/Gas side9.52mm(3/8") 42 N.m/30.1Ft.lbsGas side 12.7mm(1/2") 55N.m/40.6Ft.lbsGas side 15.88mm(5/8") 60 N.m/44.3Ft.lbsproperly and could cause a defect.Ensure that no dirt or debris enters the tubing. The standard tubing length is 25ft/7.6m.If a different length is required, adjust the refrigerant amount by 1/4 oz/ft, 20 g/M for the9k, 12k and 18k models. For the 24k model, adjust by 1/2 oz/ft, 40 g/M.Before openingthe service valves, evacuate the interconnecting tubing and indoor unit. Follow theinstruction in section 5 on page 4.Pipe cutting is carried out with a pipe cutter and burs must be removed.After inserting the are nut, aring work is carried out.Cutting and Flaring Work of PipingFlare tool for R410A Conventional are toolClutch-type clutch-type(Rigid-type) Wing-nut type (Imperial-type)A 0~0.5mm 1.0~1.5mm 1.5~2.0mm0~1/51 inch 3/76 ~1/17 inch 1/17 ~1/8 inchFlare tooling die 1.Cut pipe 2.Remove burs3.Insert the are nut4.Flare pipeLean Damage of are Partial Too outsidetcerrocnItcerroCCrackIn case the elevation B is more than 5m,oil trap shoud be installed every 5~7mMax. Length: B1 max = 20m/65ft B2 max = 20m/65ftMax.Elevation: A1 max =15m/50ft A2 max =15m/50ftIn case the pipe total length (B1+B2) is more than20m/65ft, the refrigerant should be charged, accordingto 20 g/m.BOutdoor unitIndoor unitA1B1Indoor unitA2B2 Outdoor unitIndoor unitB1Indoor unitB2Outdoor unitIndoor unitOil trapA3A3 max =15m/50ft(B1+B2) max = 30m/100ftOutdoor unitIndoor unitA1B1Indoor unitA2B2CAUTIONIndoor unitOutdoor unitIndoor unit AIndoor unit Bpower {3wire 14AWG²4 wire 14AWG²1(L) 2(N)Control wiring :Control wiring :Power cable: 3 Wire with ground 12AWG

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