Connecting The Refrigerant Piping; Routing Refrigerant Piping; To Connect The Refrigerant Piping To The Outside Unit - Daikin VRV W T-Series Installation Manual

5 Installation
NOTE
After all the piping has been connected, make sure there is
no gas leak. Use nitrogen to perform a gas leak detection.
5 .3 .2

Connecting the refrigerant piping

Before connecting the refrigerant piping, make sure the outside and
indoor units are mounted.
Connecting the refrigerant piping involves:
▪ Routing and connecting the refrigerant piping to the outside unit
▪ Protecting the outside unit against contamination
▪ Connecting the refrigerant piping to the indoor units (see the
installation manual of the indoor units)
▪ Connecting the multi-connection piping kit
▪ Connecting the refrigerant branching kit
▪ Keeping in mind the guidelines for:
▪ Brazing
▪ Using the stop valves
▪ Removing the pinched pipes
5 .3 .3

Routing refrigerant piping

RWEQ_T* series units offer flexibility of both front and top refrigerant
pipe connections.
The units ship from factory configured for refrigerant pipe
installation from top . Remove two screws of the pipe service
plate (a), and fit the plate with screws in other position as
shown in figure below .
a
Front connection:
Use the front connection accessory pipes to convert the installation
to where refrigerant piping is connected from the front.
a
Installation manual
20
5 .3 .4 To connect the refrigerant piping to the
outside unit
Heat recovery system
Connect
High
Liquid
Pressure
/ Low
Suction
Pressure
Gas
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.
≤Ø1 inch (25.4 mm)
1
1
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).
VRV W T-Series water-cooled system air conditioner
Heat pump system
Do not cut the
stop valve pipe
Do not connect
Connect Connect
High
Liquid
Pressure
/ Low
Pressure
Suction
Gas
Gas
Suction gas
side is
totally shut.
>Ø1 inch (25.4 mm)
1
2 2
1
RWEQ96~432TAYCU
4P540122-1B – 2018.11