Table of Contents
Advertisement
1-12. Installing Distribution Joint
(1) Refer to "HOW TO ATTACH DISTRIBUTION JOINT" enclosed with the optional distribution joint kit
(CZ-P680PH2, CZ-P1350PH2, CZ-P224BH2, CZ-P680BH2, CZ-P1350BH2).
● 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
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
length over
B
Horizontal
Straight tubing length
15～90°
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
over 200mm
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.
● Do not use the header joint system on the outdoor unit side.
15
Liquid tube
0～30°
(Branch tubing
angle)
Vertical
Vertical
When not connecting
branch tubing to indoor
unit directly
Suction, discharge &
liquid tubes
Horizontal
Vertical
Vertical
Advertisement
Table of Contents
