16
|
Special requirements for R32 units
Installer and user reference guide
78
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
Area of installed/conditioned
room [m²]
Maximum total indoor unit capacity class
1 indoor unit per branch pipe
port
(a)
2~5 indoor units per branch pipe port
40 m after 1
st
branch
(b)
90 m after 1
st
branch
(c)
11
80
20
—
12
80
25
—
13
80
32
—
14
80
32
—
15
125
40
—
20
140
50
40
25
250
71
71
30
250
125
125
35
250
200
200
40
250
200
200
≥45
250
250
250
(a)
One indoor unit connected to a single branch pipe port.
(b)
Two to five indoor units connected to a single branch pipe port, 40 m after first refrigerant
branch.
(c)
Two to five indoor units connected to a single branch pipe port, 90 m after first refrigerant
branch (size-up of liquid pipe, see
"18.1 Preparing refrigerant piping"
Notes:
▪
The values in the table are under the assumption of worst case indoor unit
volume and 40 m piping between indoor and SV unit and an installation height
between 1.8 m and 2.2 m (bottom of indoor unit or bottom of duct openings). In
it is possible to add custom piping lengths, installation heights above
2.2 m and custom indoor units which can lead to lower minimum room area
requirements.
▪
In case the capacity class allowed per branch pipe port is bigger than 140, use
SV1A unit or combine two ports while using SV4~8A. For more information and
installation of the SV unit, please refer to the installation and operation manual
delivered with the SV unit.
▪
In case multiple indoor units are connected to the same branch pipe port, the
sum of the connected indoor unit capacity classes needs to be equal or less than
the value indicated in the table.
▪
In case indoor units connected to the same branch pipe port are split over
different rooms, the area of the smallest room needs to be considered.
▪
Round down the derived values.
Step 3
– The total indoor capacity connected to a branch pipe port (or pair of
branch pipe ports in case of FXMA200/250)
MUST
be equal or less than the
capacity limit that is derived from the table.
If NOT, change the installation and repeat all of the above steps.
Possible changes:
-
Increase the area of smallest room (installed & conditioned) connected to the
same branch pipe port.
-
Reduce the indoor capacity connected to the same branch pipe port to equal
or below the limit.
-
Split indoor capacity over two separate branch pipe ports.
-
Fine tune system with more detailed calculations in
.
Summary of Contents for VRV 5 RXYA8A7Y1B
Page 197: ......
Page 198: ......
Page 199: ......
Page 200: ...4P749918 1 2023 12 Copyright 2023 Daikin Verantwortung f r Energie und Umwelt...
