Panasonic U-36LE1U6 Technical Data Manual

Also see for U-36LE1U6: Service manual Installation instructions Service manual Operating instructions Operating instructions

Panasonic U-36LE1U6 Technical Data Manual Manual pdf 55 page image

Design of Mini VRF SYSTEM2 - 45187654327. Optional Parts7-1. Distribution Joint KitsCZ-P160BK1U (for R410A)How to Attach Distribution Joint1. Accompanying Parts2. Distribution Joint Kits (with insulation)3. Making Branch ConnectionsCheck the contents of your distribution joint kit.BBBCC CCEDEDParts Kit 2Parts Kit 1Insulation InsulationDistributionJointDistributionJointACA D4-21/643-13/16unit : inch unit : inch2-53/642-53/644-21/643-13/16Size mm InchPart APart BPart CPart DPart E1/25/83/83/41/4Size of connection point on each part(Shown are inside diameters of tubing)o19.05o15.88o12.7o9.52o6.35Straight tubing 5-15/16" or larger15 to 30upward slantOutdoor unitSideIndoor unitSideIn case of horizontal positionIn case of vertical position(directed upward)Fig. 2-32Fig. 2-33Fig. 2-31Stopper(boss) Cutting pointInsertion length of theconnecting tubeMake space as long as possible.NOTEFor branching tubes, install 5-15/16" or larger (including reducer)straight tubing up to the point where the tube branches(or after the point where the tubes join together). (Fig. 2-31)Using a tube cutter, cut the joints at the diameter required to matchthe outside diameter of the tubing you are connecting.(This is usually done at the installation site.)The tube diameter depends on the total capacity of the indoor unit.Note that you do not have to cut the joints if it already matches thetubing end size. For size selection of the tube diameter, refer to theinstallation instructions provided with the outdoor unit.Avoid forceful cutting that may harm the shape of the joints or tubing.(Inserting the tubing will not be possible if the tube shape is not proper.)Cut off as far away from stopper as possible. (Fig. 2-32)After cutting the joints, be sure to remove burrs on the inside of thejoints. (If the joints have been squashed or dented badly, reshapedthem using a tube spreader.)Make sure there is no dirt or other foreign substances inside thedistribution joint.The distribution joint can be either horizontal or vertical. (Fig. 2-33)In the case of horizontal, the L-shaped tubing must be slanted slightlyupward (15 to 30 ).When brazing a pipe E to the reducer of which middle pipe innerdimension is D as shown above chart, cut the middle pipe as long aspossible so that the pipe E can be inserted.When brazing, replace air inside the tube with nitrogen gas to prevent copper oxide from forming.To insulate the distribution joint, use the supplied tubing insulation. (If using insulation other than that supplied,make sure that its heat resistance is 248 F or higher.)For additional details, refer to the installation instructions provided with the outdoor unit.