5 Installation
Installation manual
21
RWEQ96~432TAYD
∗
+ RWEQ96~432TATJ
∗
VRV W T-Series water-cooled system air conditioner
a
5 .3 .4
To connect the refrigerant piping to the
outside unit
Suction gas
side is
totally shut.
Liquid
Suction
Gas
Liquid
Heat recovery system
Heat pump system
Connect
Do not cut the
stop valve pipe
Do not connect
Connect
Connect
Suction
Gas
High
Pressure
/ Low
Pressure
Gas
High
Pressure
/ Low
Pressure
Gas
INFORMATION
All local inter unit piping are field supplied except the
accessory pipes.
NOTE
Precautions when connecting field piping. Add brazing
material as shown in the figure.
1
1
1
1
2
2
≤Ø1 inch (25.4 mm)
>Ø1 inch (25.4 mm)
NOTE
▪ Be sure to use the supplied accessory pipes when
carrying out piping work in the field.
▪ Be sure that the field installed piping does not touch
other pipes, the bottom panel or side panel.
Connect the stop valves to the field piping using the accessory pipes
supplied with the unit.
The connections to the branch kits are the responsibility of the
installer (field piping).
5 .3 .5
Multi connection piping kit connection
NOTE
Improper installation may lead to malfunction of the outside
unit.
▪ Install the joints horizontally, so that the caution label (a) attached
to the joint comes to the top.
▪ Do not tilt the joint more than 15° (see view A).
▪ Do not install the joint vertically (see view B).
a
a
A
B
15°
15°
a
Caution label
X
Not allowed
O
Allowed
▪ Make sure that the total length of the piping connected to the joint
is absolute straight for at least 19-11/16 inch (500 mm). Only if a
straight field piping of more than 4-3/4 inch (120 mm) is
connected, more than 19-11/16 inch (500 mm) of straight section
can be ensured.
A
>4-3/4 inch (120 mm)
B
>19-11/16 inch (500 mm)
A
B
5 .3 .6
To connect the refrigerant branching kit
For installation of the refrigerant branching kit, refer to the installation
manual delivered with the kit.
▪ Mount the refnet joint so that it branches either horizontally or
vertically.
▪ Mount the refnet header so that it branches horizontally.
A
B
±
3
0°
a
b
c
a
a
Horizontal surface
b
Refnet joint mounted vertically
c
Refnet joint mounted horizontally
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2020/07/29 16:16:45
