Single Outdoor Units And Standard Multi-Outdoor-Unit Combinations >20 Hp - Daikin VRV IV+ Installer And User Reference Manual

18 | Piping installation
18.1.6 Single outdoor units and standard multi-outdoor-unit combinations >20 HP
Connection with only VRV DX indoor units
Installer and user reference guide
76
If
The outdoor unit is positioned higher
than the indoor units
The outdoor unit is positioned lower
than the indoor units
a
4
b
a Outdoor unit
b VRV DX indoor unit
c Multi BS unit
d BS unit
e VRV DX indoor unit
▪ Minimum connection ratio: 80%
▪ Size up the liquid piping (refer to
select the piping
information)
▪ Activate the outdoor unit setting.
Refer to the service manual for more
information.
▪ Minimum connection ratio varies
according to the height difference
between outdoor and indoor units:
- 40~60 m: 80%
- 60~65 m: 90%
- 65~80 m: 100%
- 80~90 m: 110%
▪ Size up the liquid piping (refer to
select the piping
information)
▪ Activate the outdoor unit setting.
Refer to the service manual for more
information.
▪ No technical cooling
1
c
3 2
b
e
Then
4
size" [ 71] for more
4
size" [ 71] for more
5
d
e
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10
"To
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