Daikin RXYMQ5PVE [5/20] A printed circuit board has been adopted that is easy to see and wire during installation

Daikin RXYMQ5PVE [5/20] A printed circuit board has been adopted that is easy to see and wire during installation
Design flexibility Easy installation
VRVIII-S systems offer broad design flexibility with long refrigerant piping lengths and
multiple indoor unit combinations, which provides generous freedom for office and shop
design both inside and out.
A variety of functions are provided that make installation easier, such as simple wiring
and piping and automatic test operation.
MAIN FEATURES
Unique piping and wiring systems make it possible to install a VRVIII-S system quickly and easily.
Simple wiring and piping connection
A printed circuit board has been
adopted that is easy to see and wire
during installation.
Easy wiring
Simply press the test operation button and the unit performs an automatic system check,
including wiring, shutoff valves, and sensors. The results are returned automatically after the
check finishes.
Automatic test operation
Daikin’s advanced REFNET piping system makes
installation easy. Only two main refrigerant lines are
required in any one system. REFNET greatly reduces the
imbalances in refrigerant flow between units, while using
small-diameter piping.
>> REFNET piping system
A super wiring system is used to enable shared use of the
wiring between indoor and outdoor units and the central
control wiring, with a relatively simple wiring operation.
The DIII-NET communication system is employed to
enable the use of advanced control systems.
>> Super wiring system
For a 6 HP installation
Multiple indoor unit combinations are possible.* As many as 9 indoor units can be connected
to a single outdoor unit, making the VRVIII-S a remarkably versatile system.
* Total capacity index of connectable indoor units must be 50 - 130 % of the capacity index of the outdoor unit.
As many as 9 indoor units can be
connected to a single outdoor unit
The VRVIII-S provides the long piping
length possibility of 150 m, with a total piping
length of 300 m. If the outdoor unit is
installed above indoor units the level
difference can be up to a maximum of 50 m.
These generous allowances facilitate an
extensive variety of system designs.
Long piping design possible
*1. 40 m when the outdoor unit is installed below indoor units.
*2. Maximum piping length between the indoor unit and the first branch is 40 m.
Notes:
The versatile operation range of the VRVIII-S system
works to reduce limitations on installation locations. The
operation temperature range for heating goes all the way
down to -20°C, while cooling can be performed with
outdoor temperatures as high as 46°C. Both these
achievements are due to the adoption of a high-pressure
dome-type compressor.
Wide operation temperature range
Previous model
VRVII-S
87
1
2
3
4
5
6
7
8
9
units
Max.
9
>> Max. 8 indoor units for a 5 HP
installation
>> Max. 6 indoor units for a 4 HP
installation
Max. 50 m*
1
*
2
Max. 15 m
Level
difference
Level difference
between indoor
units
Actual piping length
Max. 150 m
Total piping length
Max. 300 m
Certified operation temperature range
-10
0
10
20
30
40
50
-20
-10
0
10
20
15.5°CWB
Heating
46°CDB
Cooling
-5°CDB
–20°CWB
Outdoor temperature (°CDB)
Outdoor temperature (°CWB)
Outdoor unit
Central
remote
controller
Indoor unit

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