Daikin RXYQ28U7Y1B handleiding
Handleiding
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14 Piping installation
Installation and operation manual
18
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546220-1F – 2023.01
▪ How to choose an outdoor multi connection piping kit. Choose
from the following table in accordance with the number of outdoor
units.
Number of outdoor units Branch kit name
2 BHFQ22P1007
3 BHFQ22P1517
The RYYQ22~54 models, consisting of two or three RYMQ modules,
require a 3-pipe system. There is an additional equalising pipe for
such modules (in addition to the conventional gas and liquid piping).
This equalising pipe does not exist for RYYQ8~20 or RXYQ8~54
units.
The equalising pipe connections for the different RYMQ modules are
mentioned in below table.
RYMQ Equalising pipe Ø (mm)
8 19.1
10~16 22.2
18+20 28.6
Deciding the equalising pipe diameter:
▪ In case of 3 multi units: the connection diameter of outdoor to
T‑joint has to be kept.
▪ In case of 2 multi units: the connection pipe has to have the
largest diameter.
There is never a connection of the equalising pipe with the indoor
units.
Example: (free multi combination)
RYMQ8+RYMQ12+RYMQ18. Largest connection is Ø28.6
(RYMQ18); Ø22.2 (RYMQ12) and Ø19.1 (RYMQ8). In figure below
only equalising pipe is shown.
Ø22.2 mm
Ø28.6 mm
Ø19.1 mm
INFORMATION
Reducers or T-joints are field supplied.
NOTICE
Refrigerant branch kits can only be used with R410A.
14.1.4 Multiple outdoor units: Possible layouts
▪ The piping between the outdoor units must be routed level or
slightly upward to avoid the risk of oil retention into the piping.
Pattern 1
a
b
b
a
Pattern 2
b
a
a
b
a
b
b
a
a
a To indoor unit
b Piping between outdoor units
NOT allowed (oil remains in piping)
Allowed
▪ To avoid the risk of oil retention to the outmost outdoor unit,
always connect the stop valve and the piping between outdoor
units as shown in the 4 correct possibilities of the figure below.
a
b b b
a
b b b
a
b
a
b
a
b
a
a
a
≥200 mm
a To indoor unit
b Oil collects to the outmost outdoor unit when the system
stops
NOT allowed (oil remains in piping)
Allowed
▪ If the piping length between the outdoor units exceeds 2m, create
a rise of 200 mm or more in the gas line within a length of 2 m
from the kit.
If Then
≤2m
a
b
≤2 m
>2m
a
≤2 m ≤2 m
≥200 mm
≥200 mm
b
>2 m >2 m
a To indoor unit
b Piping between outdoor units
Bekijk gratis de handleiding van Daikin RXYQ28U7Y1B, 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 | RXYQ28U7Y1B |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 8429 MB |
