Haier HSU12VHJ Installation Manual

Also see for HSU12VHJ: Service manual Installation manual Operational manual Operation manual

Contents

1. 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 ofT. 3.15A/250V.3. The wiring method should be in line with the local wiring standard.4. After installation, the power plug should be easily reached.5. A breaker should be incorporated into fixed wiring. The breaker should beall-pole switch and the distance between its two contacts should be not lessthan 3mm.Outdoor unitInstall according to Drawing for the installation of indoor and outdoor unitsƽand the bending radius should be 30 to 40 mm or longer.Connecting the pipe of gas side first makes working easier.ƽThe connection pipe is specialized for R410A.ƽInstallation of Outdoor UnitHalf union Flare nutTorque wrenchThe standard pipe length is 5m. If it is over 10m, the function of the unit will beaffected. If the pipe has to be lengthened, the refrigerant should be charged,according to 20 g/m. But the charge of refrigerant must be conducted by profes-sional air conditioner engineer. Before adding additional refrigerant, perform airpurging from the refrigerant pipes and indoor unit using a vacuum pump,thenSpannerForced fastening without careful centering maydamage the threads and cause a leakage of gas.Pipe Diameter(ǿ) Fastening torqueLiquid side6.35mm(1/4") 18N.mLiquid/Gas side9.52mm(3/8") 42 N.mGas side 12.7mm(1/2") 55N.mGas side 15.88mm(5/8") 60 N.mConnection of pipescharge additional refrigerant.Outdoor unitIndoor unitABOutdoor unitIndoor unitABABOutdoor unitIndoor unitOil trapCAUTIONMax.Elevation: Amax 1 =10m(for 12k)●In case the elevation A is more●than 5m, oil trap shoud be installedevery 5~7mMax. Length: Bmax 1 =15m(for 12k)●In case the pipe length B is more than●10m the refrigerant should be charged,according to 20 g/m.3ConnectionIf the drain-elbow is used,ƽ please attach it as figure. (Note:Only for heat pump unit.)Detach the service port’s cap of1. 3-way valve, the valve rod’s cap for 2-way valveand 3-way’s, connect the service port into the projection of charge hose (Iow)for gaugemanifold. Then connect the projection of charge hose (center) for gau-gemanifold into vacuum pump.Open the handle at Iow in2. gaugemanifold, operate vacuum pump. If the scale-moves of gause (Iow) reach vacuum condition in a moment, check 1. again.3. (76 cm Hg) at Iow pressure side. After the completion of vacuuming, close thehandle ‘Lo’ in gaugemanifold and stop the operation of the vacuum pump. Checkcondition of the scale and hold it for 1-2min. If the scale-moves back in spite oftightening, make flaring work again, the return to the beginning of 3 .Attaching Drain-ElbowPurging Method:To use vacuum pumpOpen the valve rod for the 2-way valve counterclockwise to 90 degrees.4.After 6 seconds, close the 2-way valve and make the inspection of gas leakage.Outdoor unit A4G0.75mm232^POWER1 )(N )(L )(C 321 )(N )(L )(CPower cable: 3G2.5mm 224G0.75mmOutdoor unit32^POWER1 )(N )(L )(C 321 )(N )(L )(CIndoor unitIndoor unitPower cable: 3G1.5mm 2ƽƽƽƽƽƽTake off the panel(top), by removing the 5 screws.Remove the plugs on the conduit plate.Temporarily mount the conduit tubes on the conduit plate.Connect both the power supply and unit wire harness tothe corresponding terminals on the terminal board.Ground the unit in accordance with local codes.Allow several extra inches of wire for making wiringconnections.Use lock nuts to secure conduit tubes.ƽTo bend a pipe, be careful not to crush the pipe,Ensure that on dirt or debris enters the pipe.Vacuum for over 15min. And check the gauge which should read -0.1MPaNDSV12-WNDSV18-WAmax 2 =15m(for 18k)Bmax 2 = 25m(for 18k)