Daikin VRV 5-S - Page 93

18 | Piping installation
Installer and user reference guide
93
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
Connection with VRV DX indoor units and/or air handling units
H1
I
L
A
B2
G
F
B1
a
b
c c
d
f
g
c
d
d
e
b
D
H2
H4
C2
C5C4
C3
C1
a Outdoor unit
b VRV DX indoor unit
c Safety valve unit (SV)
d VRV DX indoor unit (duct)
e VRV DX indoor unit (large duct)
f EKEXVA-kit
g Air handling unit (AHU)
Maximum piping length
Longest pipe from the
outdoor unit
Longest pipe after the
first branch or SV unit
Total piping
length
VRV
DX
8HP 100m/130m
(a)
40m
(b)
300m
(c)
10-12HP 120m/150m
(a)
40m
(b)
AHU Pair 50m/55m
(d)(e)
—
Multi
(f)
40m
(b)
Mix
(g)
(a)
(actual/equivalent length); maximum: (A+B1+C1, A+B2+C2, A+B1+C3, A+B1+C4,
A+B1+D+C5, A+F+G)
(b)
(actual length); maximum: (B1+C1, B2+C2, B1+C3, B1+C4, B1+D+C5, F+G, B2+L)
(c)
(actual length) maximum: A+B1+B2+C1+C2+C3+C4+C5+D+F+G+L
(d)
(actual/equivalent length); maximum: (A+B2+L)
(e)
The allowable minimum length is 5m.
(f)
Multiple air handling units (AHU)(EKEXVA+EKEA kits)
(g)
Mix of air handling units
Maximum height difference
Indoor to outdoor
(a)
Indoor to indoor
VRV DX 8HP 50m/40m 15m
10-12HP