Daikin RX09NMVJU Installation Manual

Also see for RK09NMVJU: Engineering data Service manual Installation manual Service manual Installation manual

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Daikin RX09NMVJU Installation Manual Manual pdf 7 page image

6■English2. Drain work (only for heat pumpmodels, excluding RXL models)CAUTIONIn cold areas, do not use a drain socket, drain caps (1,2)and a drain hose with the outdoor unit. (Drain water mayfreeze, impairing heating performance.)• If the drain port is covered by a mounting base or floorsurface, place additional foot bases of at least 1-1/4inch (30mm) in height under the outdoor unit’s feet.1) Attach C drain cap (1) and D drain cap (2).2) Attach B drain socket.• When attaching B drain socket to the bottomframe, make sure to connect the drain hose to thedrain socket first.3. Flaring the pipe end1) Cut the pipe end with a pipe cutter.2) Remove burrs with the cut surface facingdownward, so that the filings do not enter thepipe.3) Put the flare nut on the pipe.4) Flare the pipe.5) Check that the flaring has been done correctly.CheckThe flare'sinner surfacemust beflaw-free.The pipe end mustbe evenly flared ina perfect circle.Make sure that theflare nut is fitted.Set exactly at the position shown below.FlaringADie A 0-0.020 inch(0-0.5mm)Clutch-typeFlare tool for R410A0.039-0.059 inch(1.0-1.5mm)Clutch-type (Rigid-type)0.059-0.079 inch(1.5-2.0mm)Wing-nut type (Imperial-type)Conventional flare toolCut exactly atright angles. Remove burrs.WARNING• Do not apply mineral oil to the flare.• Prevent mineral oil from getting into the system as this would reduce the service life of the units.• Never use piping which has been used for previous installations. Only use parts which are delivered with this unit.• Never install a dryer to this R410A unit in order to guarantee its service life.• The drying material may dissolve and damage the system.• Incomplete flaring may result in refrigerant gas leakage.4. Refrigerant pipingCAUTION• Use the flare nut fixed to the main unit. (This is to prevent the flare nut from cracking as a result of deterioration over time.)• To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R410A.)• Use a torque wrench when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.• Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand, then tighten them fully with a spanner and atorque wrench.Do not apply refrigerationoil to the outer surface.Flare nutApply refrigerationoil to the innersurface of the flare.Do not apply refrigeration oil tothe flare nut to avoid tighteningwith excessive torque.Apply oilFlare nut tightening torqueGas side3/8 inch (9.5mm) 1/2 inch(12.7mm)24-1/8 – 29-1/2ft • Ibf(32.7-39.9N • m)36-1/2 – 44-1/2ft • lbf(49.5-60.3N • m)5/8 inch(15.9mm)45-5/8 – 55-5/8ft • lbf(61.8-75.4N • m)10-1/2 – 12-3/4ft • lbf(14.2-17.2 N • m)Liquid side1/4 inch (6.4mm)Service port cap tightening torque8 – 10-7/8ft • lbf (10.8-14.7N • m)Width across flats 11/16 inch(17mm)(14.2-17.2N • m)10-1/2 – 12-5/8ft • lbf3/4 inch(19mm)(17.1-20.9N • m)12-5/8 – 15-3/8ft • lbf7/8 inch(22mm)(21.6-27.4N • m)16 – 20-1/4ft • lbf1-1/16 inch(27mm)(48-59.8N • m)35-3/8 – 44-1/8ft • lbfValve captightening torqueBottom frameDrain capPinch the bottomframe in.Drain cap (1)Drain cap (1)Air outlet sideCCDrain cap (2)DDrainsocketBDrain cap (1)Drain cap (2)D Drain cap (2)Air outlet sideB DrainsocketCD09/12 class 15/18/24 classBottom frameDrain socketHose (available commercially,inner dia. 5/8 ” (16mm))BEnglish