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1-11. Installing Distribution Joint
(1) Refer to "HOW TO ATTACH DISTRIBUTION JOINT" enclosed with the optional distribution joint kit (CZ-P160BK2).
● When connecting a branch tubing to the indoor unit directly, it is necessary for each branch tubing to install at a positive angle with
respect to horizontal in order to prevent accumulation of refrigerant oil in stopped units. See the below chart.
Branch tubing system
How to install
branch tubing
B
When connecting to A
A
D
Straight tubing
length over
Horizontal
200mm
Arrow view D
Vertical
15～90°
Header branch system
Outdoor
Indoor
Indoor
(From 1st branch to tip
of solidly welded part)
Horizontal line
Install at a positive angle
Restricted
When connecting branch tubing to indoor unit directly
Gas tube
Straight tubing
B
length over
A
Horizontal
15～90°
length over 200mm
Vertical
Straight tubing
length over
200mm
Vertical
Vertical
(Main tubing is horizontal.)
Indoor
Horizontal line
Install at a positive angle
(15~30°)
Solidly welded shut (X)
(15~30°)
Not restricted
When connecting to B
200mm
15～90°
15～90°
or
Straight tubing
15～30°
15～30°
(Branch tubing
angle)
Straight tubing
length over
200mm
15～90°
● Be sure to solidly weld shut the T-joint end (marked by X in
the figure). In addition, pay attention to the insertion depth of
each connected tube so that the flow of refrigerant within the
T-joint is not impeded.
Be sure to use a commercial available T-joint.
● When using the header joint system, do not make further
branches in the tubing.
14
Liquid tube
0～30°
(Branch tubing
angle)
Vertical
Vertical
When not connecting
branch tubing to
indoor unit directly
Gas & liquid tubes
Horizontal
Vertical
Vertical
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