ENGLISH-25
02
INST
ALL
ATION
Refrigerant piping w
o
rk
f
Install the refrigerant pipe within the maximum allowable length, di
ff
erence in height and length of after the
fi
rst branch
pipe.
f
The pressure of the R-410A is high.
Use only rated refrigerant pipe and follow the installation method.
f
Use clean refrigerant pipe Where there is no harmful ion, oxide, dust, iron content or moisture.
f
Use adequate tools and accessories for R-410A.
Manif
o
ld gauge
•
Use manifold gauge only for R-410A to prevent the in
fl
ow of foreign substances.
Vacuum pump
•
Use vacuum pump with check valve to prevent pump oil from
fl
owing backward while the vacuum
pump is stopped.
•
Use the vacuum pump that the vacuum induction is available up to 5Torr. (-100.7kPa)
Flare nut
•
Use only
fl
are nut supplied with the product.
All
o
wable length
o
f the refrigerant pipe and the installati
o
n examples
f
AE090JXEDEH, AE120JXEDEH, AE140JXEDEH, AE160JXEDEH, AE090JXEDGH, AE120JXEDGH, AE140JXEDGH,
AE160JXEDGH
Outdoor unit
Item
Example
Remarks
Maximum
allowable
length of
pipe
Outdoor unit
~ Hydro unit
Total length
Less than
50
m
a
≤
50
m
Maximum
allowable
height
Outdoor unit
~ Hydro unit
Less than 30
m
H1
If outdoor unit
is located lower
position H1
≤
15
m
Additional refrigerant
calculation
R=Basic additional charge by the piping length
Contact the manufacturer if the length should exceed.
