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Unscrew the caps at the end of each pipe. .All inert gas exhausts from the indoor unit. The indoor unit is supplied with inert gas (nitrogen). Before installing the unit, check if nitrogen gas flow out of indoor unit. If this one isn’t true, DO NOT INSTALL THE UNIT since leakage could be inside the indoor unit. ENGLISH Purging the indoor unit 1. Make sure that you have all the required tools (pipe cutter, reamer, flaring tool and pipe holder). 2. If you want to shorten the pipe, cut it using a pipe cutter, ensuring that the cut edge remains at 90° with the side of the pipe (see below examples of correct and incorrect cut edges). 3. To prevent a gas leak, remove all burrs at the cut edge of the pipe using a reamer. 4. Put a flare nut slightly into the pipe and modify the flare. The length of the pipe can be: •Extendedupto:seetablepage28•Shortenupto:seepage28If you need a pipe longer than 5 meters: •Youmustextendtheassemblycable. •Youmustaddrefrigeranttothepipes;otherwise,theindoorunitmayfreeze. Unscrew the caps Pipes Oblique Rough Burr Pipe cutter Pipe •TheremainingairintheRefrigerationcycle,whichcontainsmoisture, may cause malfunction on the compressor. •Alwayscontacttheservicecenteroraprofessionalinstallationagencyfor product installation. •Topreventdirtorforeignsubstancesfromgettingintothepipesduringinstallation, do NOT remove the caps completely until you are ready to connect the pipes. Cutting or extending the pipe Outer Diameter (D) Depth (A) Flaring Size (B) o6.35 mm 1.3 mm 9.0 mm o9.52 mm 1.8 mm 13.0 mm o12.70 mm 2.0 mm 16.2 mm o15.88 mm 2.2 mm 19.3 mm o19.05 mm 2.2 mm 22.5 mm o22.23 mm 2.2 mm 25.7 mm Pipe Flare •Facethepipedownwhileremovingtheburrstomakesurethatburrsdonotgetintothepipe. 1. Unscrew the caps at the end of each pipe. .All inert gas exhausts from the indoor unit. The indoor unit is supplied with inert gas (nitrogen). Before installing the unit, check if nitrogen gas flow out of indoor unit. If this one isn’t true, DO NOT INSTALL THE UNIT since leakage could be inside the indoor unit. 36 Cutting or extending the pipe Outer Diameter Torque (kgf•cm) o6.35 mm 140~170 o9.52 mm 250 ~280 o12.70 mm 380~420 o15.88 mm 440~480 o19.05 mm 990~1210 o22.23 mm 990~1210 Indoor outlet pipe Connecting pipe Flare nut Wall Indoor unit Drain hose The drain hose must NOT slant upwards. The end of the drain hose must NOT be placed under water. The drain hose must not be bent. Keep a clearance of at least 5cm between the end of the drain hose and the ground. 5cm less Do not place the end of the drain hose in a hollow. Ditch 5. Check if you flared the pipe correctly (see examples of incorrectly flared pipes below). 6. Align the pipes to connect them easily. Tighten the flare nuts first with your hands, and then with a torque wrench, applying the following torque: 7. For further details on how to connect to the outdoor unit and purge the air, refer to page 38~40. Correct Uneven Thickness Cracked Damaged Surface Inclined •Excessivetorquecanbecauseofgasleakage.Incasebrazingthepipe,thenitrogengasmustbeblownintothepipe (50 Pa). The joint must be accessible and serviceable. •Tightentheflarenutwithtorquewrenchaccordingtospecifiedmethod. If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage. Installing and connecting the drain hose of the indoor unit When installing the drain hose for the indoor unit, check if condensation draining is adequate. When passing the drain hose through the 65-mm hole drilled in the wall, check the followings: Cutting or extending the pipe Outer Diameter Torque (kgf•cm) o6.35 mm 140~170 o9.52 mm 250 ~280 o12.70 mm 380~420 o15.88 mm 440~480 o19.05 mm 990~1210 o22.23 mm 990~1210 Indoor outlet pipe Connecting pipe Flare nut Wall Indoor unit Drain hose The drain hose must NOT slant upwards. The end of the drain hose must NOT be placed under water. The drain hose must not be bent. Keep a clearance of at least 5cm between the end of the drain hose and the ground. 5cm less Do not place the end of the drain hose in a hollow. Ditch 5. Check if you flared the pipe correctly (see examples of incorrectly flared pipes below). 6. Align the pipes to connect them easily. Tighten the flare nuts first with your hands, and then with a torque wrench, applying the following torque: 7. For further details on how to connect to the outdoor unit and purge the air, refer to page 38~40. Correct Uneven Thickness Cracked Damaged Surface Inclined •Excessivetorquecanbecauseofgasleakage.Incasebrazingthepipe,thenitrogengasmustbeblownintothepipe (50 Pa). The joint must be accessible and serviceable. •Tightentheflarenutwithtorquewrenchaccordingtospecifiedmethod. If the flare nut is over-tightened, the flare may break and cause refrigerant gas leakage. Installing and connecting the drain hose of the indoor unit When installing the drain hose for the indoor unit, check if condensation draining is adequate. When passing the drain hose through the 65-mm hole drilled in the wall, check the followi...
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