Daikin REYA8A7Y1B9 handleiding
Handleiding
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15 Piping installation
Installation and operation manual
32
REMA5A7Y1B9+REYA8~20A7Y1B9
VRV 5 heat recovery
4P797563-1 – 2024.11
▪ 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 7.5° (see view A).
▪ Do not install the joint vertically (see view B).
a
a
A B
7.5°
7.5°
a Caution label
NOT allowed
Allowed
▪ Make sure that the total length of the piping connected to the joint
is absolute straight for more than 500mm. Only if a straight field
piping of more than 120mm is connected, more than 500mm of
straight section can be ensured.
>120 mm
>500 mm
15.2.7 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
d
a
a Horizontal surface
b Refnet joint mounted vertically
c Refnet joint mounted horizontally
d Header
15.3 Checking the refrigerant piping
15.3.1 About checking the refrigerant piping
Refrigerant piping works are
finished?
The indoor units / BS units /
outdoor unit are already
powered ON?
Use procedure:
"Method 2: after power ON"
Finish piping work
Use procedure:
"Method 1: Before power ON
(regular method)"
Yes
Yes
No
No
It is very important that all refrigerant piping work is done before the
units (outdoor, BS unit or indoor) are powered on. When the units
are powered on, the expansion valves will initialise. This means that
the valves will close.
NOTICE
Leak test and vacuum drying of field piping, BS units and
indoor units is impossible when field expansion valves are
closed.
Method 1: Before power ON
If the system has not yet been powered on, no special action is
required to perform the leak test and the vacuum drying.
Method 2: After power ON
If the system has already been powered on, activate setting [2‑21]
(refer to "18.1.4 To access mode 1 or 2" [4 43]). This setting will
open field expansion valves to guarantee a refrigerant piping
pathway and make it possible to perform the leak test and the
vacuum drying.
DANGER: RISK OF ELECTROCUTION
NOTICE
Make sure that all indoor units and BS units connected to
the outdoor unit are powered on.
NOTICE
Wait to apply setting [2‑21] until the outdoor unit has
finished the initialisation.
Leak test and vacuum drying
Checking the refrigerant piping involves:
▪ Checking for any leakages in the refrigerant piping.
▪ Performing vacuum drying to remove all moisture, air or nitrogen
in the refrigerant piping.
If there is a possibility of moisture being present in the refrigerant
piping (for example, water may have entered the piping), first carry
out the vacuum drying procedure below until all moisture has been
removed.
All piping inside the unit has been factory tested for leaks.
Only field installed refrigerant piping needs to be checked.
Therefore, make sure that all the outdoor unit stop valves are firmly
closed before performing leak test or vacuum drying.
Bekijk gratis de handleiding van Daikin REYA8A7Y1B9, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | REYA8A7Y1B9 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10896 MB |
