User manual LG FFH-261A

[. . . ] 22 Read This Manual Inside you will find many helpful hints on how to install and test the air conditioner properly. !CAUTION Contact an authorised service technician for repair or maintenance of this unit. Contact an authorised installer for installation of this unit. The air conditioner is not intended for use by young children or infirmed persons without supervision. [. . . ] Connecting Pipe and Drainage Installation 1. Do not install the drain hose as illustrated below. Do not block water flow with a rise. Do not put the end of the drain hose into water. Fig. 7 2. When connecting an extension drain hose, insulate the connecting part of the extension drain hose with a shield pipe, do not let the drain hose become slack. Connecting pipe 1. For the left-hand and right-hand piping, remove the pipe cover from the side panel. For the rear-right-hand and rear-left-hand piping, install the piping as shown. Bend the connecting pipe to be laid at a height of 43mm or less from the wall. (Refer to Tightening Connection in REFRIGERANT PIPING CONNECTION) Right-hand piping Rear-right piping Indoor unit outline Connecting pipe . . . . Side Part cover Left-hand piping Rear-left piping Fig. 9 Fig. 8 4. Pass the piping through the hole in the wall. Put the upper claw at the back of the indoor unit on the upper hook of the installation plate, move the indoor unit from side to side to see that it is securely hooked. Piping can easily be made by lifting the indoor unit with a cushioning material between the indoor unit and the wall. Carry out correct flaring work using the following procedure: 90 C Oblique Roughness Burr Fig. 15 A: Cut the pipes and the cable. Use the piping kit accessory (if applicable) or pipes purchased locally. Measure the distance between the indoor and the outdoor unit. Cut the pipes a little longer than the measured distance. Cut the cable 1. 5m longer than the pipe length. Completely remove all burrs from the cut cross section of pipe/tube. Face the end of the copper pipe/tube in a downward direction as you remove burrs in order to avoid burrs dropping into the tubing. Face down Pipe Reamer Fig. 16 10 REFRIGERANT PIPE CONNECTION C: Putting flare nut on Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal (Note: It is not possible to put them on after flaring work). Flare nut Copper tube D: Flaring work Carry out flaring work using flaring tool as shown below. Firmly hold copper pipe in a die according to the dimension shown in the table below. Fig. 17 "A" Handle Bar Yoke Cone Copper pipe Clamp handle Red arrow mark Bar Outer diam. (mm) 6. 35 (1/4") 9. 53 (3/8") 12. 7 (1/2") 16. 0 (5/8") A(mm) Max. 0. 7 1. 0 1. 0 2. 2 Fig. 18 Tightening Connection Align the center of the pipes. Sufficiently tighten the flare nut with fingers, and then tighten it with a spanner and torque wrench as shown. [. . . ] Check and find out the solution ways till the unit operate properly. Soap water method: Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of th piping. If bubbles come out, the pipes have leakage. Leak detector Use the leak detector to check for leakage. Indoor unit check point D C Cover Outdoor unit check point B A CAUTION A: Lo packed valve B: Hi packed valve C and D are ends of indoor unit connection. Fig. 25 Test running Perform test operation after completing gas leak check at the flare nut connections and electrical safety check. [. . . ]