Samsung Cassette Type Series User Manual

Also see for 1 way cassette type: Installation manual

Contents

installing your air conditioner _25ENGLISHPerforming Leak Test & Insulation1. To avoid condensation problems, place T13.0 or thickerAcrylonitrile Butadien Rubber separately around eachrefrigerant pipe.Always make the seam of pipes face upwards.Note2. Wind insulating tape around the pipes and drain hoseavoiding to compress the insulation too much.3. Finish wrapping insulating tape around the rest of thepipes leading to the outdoor unit.4. The pipes and electrical cables connecting the indoor unitwith the outdoor unit must be fixed to the wall withsuitable ducts. The designs and shape are subjectto change according to the model.LEAK TEST WITH NITROGEN(before opening valves)In order to detect basic refrigerant leaks, before recreating thevacuum and recirculating the R410A, it’s responsible of installerto pressurize the whole system with nitrogen(using a pressureregulator) at a pressure above 4.1MPa(gauge).LEAK TEST WITH R410A(after opening valves)Before opening valves, discharge all the nitrogen into thesystem and create vacuum. After opening valves check leaksusing a leak detector for refrigerant R410A.Leak testLeak checkOnce you have checked that there are no leaks in the system,you can insulate the piping and hose.InsulationInsulation cover pipeIndoor unitBe sure to overlapthe insulationInsulation pipeNo gapNBR(T13.0 or thicker)5. Select the insulation of the refrigerant pipe. Insulate the gas side and liquid side pipe referring to thethickness according to the pipe size. The thickness according to the pipe size is a standard ofthe indoor temperature of 27°C and humidity of 80%.If installing in an unfavorable conditions, use thicker one. Insulator’s heat-resistance temperature should be morethan 120°C.Pipe size(mm)Minimum thicknessof insulation (mm) RemarksPE foam EPDMfoamØ6.35~Ø15.88 13 10 If you install the pipeunderground, at the seaside,a spa or on the lake, use 1 gradethicker one according to thepipe size.- 25 19Drain pipe and Drain Hose Installation1. Install the drain pipe as shortly as possible. Give a slightly slant to the drainpipe for proper drainageof condensate water. There must be no gap on the connected part so that thedrainpipe is not separated from the flexible hose.2. Insulate the drainpipe, and then fix it as indicated. Whole drainpipe should be insulated by 5t(or more)insulation to prevent water condensation.Insulation drainpipeBand BandFlexiblehoseDrainhose portDrainpipeAdhesivesInsulation cover bandInsulation cover drainBand(Not supplied)IndoorUnitDischarge all the nitrogen to create a vacuum andcharge the system.All refrigerant connection must be accessible, in orderto permit either unit maintenance or removing itcompletely. Install the insulation not to get wider and use theadhesives on the connection part of it to preventmoisture from entering. Wind the refrigerant pipe with insulation tapeif it is exposed to outside sunlight. Install the refrigerant pipe respecting that theinsulation does not get thinner on the bent part orhanger of pipe. Add the additional insulation if the insulation plategets thinner.Additional insulationRefrigerant pipe insulationa×3aHangerMust fit tightly againstbody without any gap.

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