3Outdoor unitIndoor unitABOutdoor unitIndoor unitABABOutdoor unitIndoor unitOil trapOutdoor 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.ƽConnecting the pipe of gas side first makes working easier.ƽEnsure the interconnecting tubing is approved for R410A.ƽInstallation of Outdoor UnitHalf union Flare nutTorque wrenchCAUTIONSpannerForced fastening without careful centering maydamage the threads and cause a leakage of gas.Connection of pipes1. If the supply cord is damaged, it must be replaced by the manufacturer or itsservice agent or a similar qualified person. The type of connecting wire isH05RN-F or H07RN-F.2. If the fuse on PC board is broken please change it with the type of3. The wiring method should be in line with the local wiring standard.4. Use an HVACR circuit breaker or time delay fuse.T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor). Connecting the indoor/outdoor Electric CableRemoving the wiring coverRemove terminal cover at right bottom corner of indoor unit, then take offƽ wiring 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, confirm 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 unitIndoor unit)C(3)N(1 )L(2 )C(3)N(1 )L(2^Outdoor unit{Indoor unit Outdoor unit1 2 N2)(3 (C) L1)(• Max.Elevation: Amax= 32ft / 10m (09k / 12k)= 50ft / 15m (18k / 24k)• In case the elevation A is morethan 15ft / 5m, oil trap shoud beinstalled every 5~7m• Max. Length: Bmax= 50ft / 15m (09k / 12k)= 80ft / 25m (18k / 24k)HSU09VHG(DB)-WHSU12VHG(DB)-WHSU18VHG(DB)-WHSU24VHG(DB)-WƽƽƽInsert 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.PowerWiring4wire 18AWGControl WiringPower cable: 2wire with ground 16AWGPower cable: 2wire with ground 12AWG (4G0.75 mm )PowerWiring4wire 18AWGControl WiringPipe Diameter(ǿ) 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.(4G0.75mm )2(4G0.75 mm )2(4G0.75mm )22Ensure that no dirt or debris enters the tubing. The standard tubing length is 15 ft., 5M.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 mustƽ be removed.After inserting the flare nut, flaring work is carried out.ƽCutting and Flaring Work of PipingFlare tool for R410A Conventional flare 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 flare nut4.Flare pipeLean Damage of flare Partial Too outsideCorrect IncorrectCrack