Optional Parts - Panasonic U-72MF1U9 Technical Data Manual

7. Optional Parts

7-1. Distribution Joint Kits
CZ-P900PH1U (for R410A)
How to Attach Distribution Joint
1. Accompanying Parts
Check the contents of your distribution joint kit.
2. Distribution Joint Kits (with insulation)
CZ-P900PH1U
Suction Tube
300
#C
B C
#C
Distribution
Joint
D
E
Insulation
* Insulators for both the Suction tube and the Discharge tube are the same.
* Suction tube and Discharge tube are similar in sizes and both the tube entrances have the same diameter.
So the both Distribution joints can fit into different tubes. Since the diameter of the tube ends for both Suction and
Discharge tube are different, take care not to connect the distribution joint different.See the "#" marks on the above
figures.
Size of connection point on each part (Shown are inside diameters of tubing)
Size Part B Part C
mm Ø34.93 Ø28.58
Inch 1-1/4 1-1/8
Using a tube cutter, cut the joints at the diameter required to match the 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 outdoor unit.
Note that you do not have to cut the joints if it already matches the tubing end size. For size selection of the tube
diameter, refer to the installation instructions provided with the outdoor unit.
NOTE
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.
After cutting the joints, be sure to remove burrs on the inside of the joints.
(If the joints have been squashed or dented badly, reshaped them using a
tube spreader.)
Make sure there is no dirt or other foreign substances inside the distribution
joint.
USE:For outdoor unit (Capacity after distribution joint is 90.0kW or less.)
Discharge Tube
E D C
C D E
Reducing
Joints
Part D Part E
Ø25.4 Ø22.22
1 7/8
300
#C
C D E F
#C
D
E
F
Insulation
Part F Part G Part H
Ø19.05 Ø15.88 Ø12.7
3/4 5/8 1/2
2 - 47
Design of 3WAY VRF SYSTEM
Liquid Tube
G
F
E
I H G F E E F G H I
340
Insulation
Part I
Ø9.52
3/8
Stopper(boss)
Cutting point
Make this as long as
possible.
Insertion length of the
connecting tube
1
2
3
4
5
6
7
8