Technical data
Installer reference guide
31
RZAG71~Y1
Sky Air Alpha-series
4P573381-1 – 2019.04
2
Maximum two units can be installed.
Not allowed
Multiple rows of units (
)
b (mm)
≥1000
≥200
≥2000
≥100
≥3000
≥1500
b
≥100
(1)
H
B
H
U
≥100
(1)
≥100
(1)
H
B
≤½H
U
b≥250
½H
U
<H
B
≤H
U
b≥300
H
B
>H
U
H
B
H
U
≥100
(1)
≥100
(1)
≥100
(1)
(1)
For better serviceability, use a distance ≥250 mm
Stacked units (max. 2 levels) (
)
A1
A2
≥500
≥1000
A2
≥500
≥300
≥100
(1)
≥100
(1)
B1
A2
B2
≥100
≥300
B2
≥100
≥1000
B2
≥100
(1)
≥100
(1)
(1)
For better serviceability, use a distance ≥250 mm
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.
12.3
Piping diagram: Outdoor unit
LPS
HPS
T
D
T
B
T
M
T
S
T
L
A
B
Service port (with 5/16" flare)
Stop valve
Filter
PCB cooling
Muffler
Electronic expansion valve
4‑way valve
High pressure switch
LPS
Low pressure switch
Compressor accumulator
Heat exchanger
Compressor
Distributor
