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Installation
Installer reference guide
54
RZAG71~Y1
Sky Air Alpha-series
4P695307-1 – 2022.05
Examples
Layout
Additional refrigerant amount (R)
L2=7 m
(Ø6.4 mm)
L3=5 m
(Ø6.4 mm)
L1=45 m (Ø9.5 mm)
RZAG100
Case: Twin, standard liquid pipe size
1
G1
Total Ø9.5
=> G1=45 m
G2
Total Ø6.4 => G2=7+5=12 m
2
Case: G1>40 m
R1
Length=G1−40 m=5 m
=> R1=0.35 kg
R2
Length=G2=12 m
=> R2=0.4 kg
3
R
R=R1+R2=0.35+0.4=0.75 kg
L2=20 m
(Ø6.4 mm)
L3=17 m
(Ø6.4 mm)
L4=17 m
(Ø6.4 mm)
L1=15 m (Ø9.5 mm)
RZAG125
Case: Triple, standard liquid pipe size
1
G1
Total Ø9.5 => G1=15 m
G2
Total Ø6.4 => G2=20+17+17=54 m
2
Case: G1≤40 m (and G1+G2>40 m)
R1
R1=0.0 kg
R2
Length=G1+G2−40 m=15+54−40=29 m
=> R2=0.6 kg
3
R
R=R1+R2=0.0+0.6=0.6 kg
Charging refrigerant: Setup
"7.5.3 Checking refrigerant piping: Setup"
47].
To charge additional refrigerant
WARNING
▪
Only use R32 as refrigerant. Other substances may cause explosions and
accidents.
▪
R32 contains fluorinated greenhouse gases. Its global warming potential (GWP)
value is 675. Do NOT vent these gases into the atmosphere.
▪
When charging refrigerant, ALWAYS use protective gloves and safety glasses.
NOTICE
To avoid compressor breakdown, do NOT charge more than the specified amount of
refrigerant.
Prerequisite:
Before charging refrigerant, make sure the refrigerant piping is
connected and checked (leak test and vacuum drying).
1
Connect the refrigerant cylinder to both the service port of the gas stop valve
and the service port of the liquid stop valve.
2
Charge the additional refrigerant amount.
3
Open the stop valves.
If pump down is needed in case of dismantling or relocating the system, see
75] for more details.
Summary of Contents for Sky Air Alpha Series
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