Daikin LRMEQ4BY1 Installer And User Manual

Also see for LRMEQ3BY1: Installation and operation manual Service manual

6 InstallationInstaller and user reference guide17LRMEQ+LRLEQ3+4BY1Air-cooled refrigeration condensing unit4P500362-1A – 2018.092 Insert a hexagon wrench into the stop valve and turn the stopvalve counterclockwise.3 When the stop valve cannot be turned any further, stop turning.4 Install the stop valve cover.Result: The valve is now open.To close the stop valve1 Remove the stop valve cover.2 Insert a hexagon wrench into the stop valve and turn the stopvalve clockwise.3 When the stop valve cannot be turned any further, stop turning.4 Install the stop valve cover.Result: The valve is now closed.To handle the stop valve cover▪ The stop valve cover is sealed where indicated by the arrow. DoNOT damage it.▪ After handling the stop valve, tighten the stop valve coversecurely, and check for refrigerant leaks. For the tighteningtorque, refer to the table below.NOTICEThread-locking fluid. Before reattaching the stop valvecover, apply thread-locking fluid to the screw thread (NOTto the cover or sealing part). Otherwise, condensationwater might enter and freeze. Possible consequence:Deformation, refrigerant leakage and compressormalfunction.a bb ca Cover (do NOT apply thread-locking fluid)b Sealing part (do NOT apply thread-locking fluid)c Screw thread with thread-locking fluidTo handle the service port▪ Always use a charge hose equipped with a valve depressor pin,since the service port is a Schrader type valve.▪ After handling the service port, make sure to tighten the serviceport cover securely. For the tightening torque, refer to the tablebelow.▪ Check for refrigerant leaks after tightening the service port cover.NOTICEThread-locking fluid. Before reattaching the service portcover, apply thread-locking fluid to the screw thread (NOTto the cover or sealing part). Otherwise, condensationwater might enter and freeze. Possible consequence:Deformation, refrigerant leakage and compressormalfunction.cbaa Cover (do NOT apply thread-locking fluid)b Sealing part (do NOT apply thread-locking fluid)c Screw thread with thread-locking fluidTightening torquesStop valvesize (mm)Tightening torque N•m (turn clockwise to close)ShaftValve body HexagonalwrenchCap (valvelid)ServiceportØ9.5 5.4~6.6 4 mm 13.5~16.5 11.5~13.9Ø15.9 13.5~16.5 6 mm 22.5~27.56.4.6 To remove the pinched pipesWARNINGAny gas or oil remaining inside the stop valve may blow offthe pinched piping.Failure to observe the instructions in procedure belowproperly may result in property damage or personal injury,which may be serious depending on the circumstances.Use the following procedure to remove the pinched piping:1 Remove the valve cover and make sure that the stop valves arefully closed.cdaba Service port and service port coverb Stop valvec Field piping connectiond Stop valve cover