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Technical data
Installer and user reference guide
128
RXYSQ4~6T8V/YB
VRV IV-S system air conditioner
4P482277-1B – 2020.10
Multiple rows of units (
)
b (mm)
H
B
≤½H
U
b≥250
½H
U
<H
B
≤H
U
b≥300
H
B
>H
U
H
B
H
U
≥1000
≥200
≥2000
≥100
≥3000
≥600
≥1500
b
≥100
≥100
≥100
≥100
≥100
≥100
H
B
H
U
Stacked units (max. 2 levels) (
)
A1
B1
A2
B2
A2
≥1000
A2
≥300
≥100
≥100
≥100
≥300
≥100
≥100
B2
≥100
≥1000
B2
A1=>A2
(A1) If there is danger of drainage dripping and freezing between the upper and lower units…
(A2) Then install a
roof
between the upper and lower units. Install the upper unit high enough above the lower unit to
prevent ice buildup at the upper unit's bottom plate.
B1=>B2
(B1) If there is no danger of drainage dripping and freezing between the upper and lower units…
(B2) Then it is not required to install a roof, but
seal the gap
between the upper and lower units to prevent discharged air
from flowing back to the suction side through the bottom of the unit.