Forced fastening without careful centeringmay damage the threads and cause aleakage of gas.Pipe Diameter ( )Liquid side 6.35mm(1/4")Gas side 9.52mm(3/8")Fastening torque18N.m40N.mGas side 12.7mm(1/2") 50N.mGas side 15.88mm(5/8") 60N.mLiquid side 9.52mm(3/8") 40N.mOutdoor unit1.Installation of Outdoor Unit3.Connection4.Attaching Drain-Elbow2.Connection of pipesInstall according toTo bend a pipe, give the roundness as large as possible not to crush the pipeConnecting the pipe of gas side first makes working easier.The max vertical distance between the indoor unit and the outdoor unit is 5 m.Use the same method on indoor unit. Loosen the screws on terminal block and insert the plugs fully intoterminal block, then tighten the screws.If wiring is not correct, proper operation can not be carried out and controller may be damaged.If the drain-elbow is used, please attach it asfigure. (Note: Only for heat pump unit.)Drawing for the installation of indoor and outdoor unitsInsert the cable according to terminal number in the same manner as the indoor unit.Fix the cable with a clamp.Half union Flare nutSpanner Torque wrenchOutdoor unitBe careful that matters, such as wastes of sands, etc. shall not enter the pipe.6