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Refrigerant piping system
u The amount of Refrigerant
The calculation of the additional charge should take into account the length of pipe and CF(correction
Factor) value of indoor unit.
CF value of indoor unit
Capacity(Btu/h(kW))
Type
Ceiling Concealed Duct (Low Static)
Ceiling Concealed Duct (High Static)
Wall Mounted
1Way Ceiling Cassette
2Way Ceiling Cassette
4Way Ceiling Cassette
ARTCOOL Gallery
Floor Standing
Ceiling & Floor
Ceiling Suspended
Console
Fresh Air Intake Unit
Heat recovery ventilator(DX)
CAUTION
Use only 2-series of indoor unit. Ex) ARNU***2
44
Outdoor Unit
Additional
Total liquid pipe
=
charge(kg)
Total liquid pipe
+
Total liquid pipe
+
Total liquid pipe
+
Total liquid pipe
+
Total liquid pipe
+
Total liquid pipe
+
Number of installed
+
+
5k
7k
9k
(1.6) (2.2) (2.8) (3.6) (4.5) (5.6) (7.1) (8.2) (10.6) (12.3) (14.1) (22.4) (28.0)
-
0.17 0.17 0.17 0.17 0.37 0.37
-
0.26 0.26 0.26 0.26 0.26 0.26 0.44 0.44 0.44 0.62 1.00 1.00
-
0.24 0.24 0.24 0.24 0.28 0.28
-
0.20 0.20 0.20
-
-
-
0.18 0.18 0.25 0.25 0.32 0.32 0.48 0.48 0.64 0.64 0.64
-
0.10 0.10 0.10
-
0.17 0.17 0.17 0.17 0.37 0.37
-
-
0.10 0.10
-
-
-
-
0.17 0.17 0.17 0.17
-
-
-
-
-
-
:Ø25.4 mm
:Ø22.2 mm
:Ø19.05 mm
:Ø15.88 mm
:Ø12.7 mm
:Ø9.52 mm
:Ø6.35 mm
HR units
CF value of
indoor unit
12k
15k
18k
24k
-
0.29 0.29
-
-
0.16 0.16
-
-
-
-
-
-
-
-
0.35 0.35
-
-
-
-
-
-
0.20
-
0.20 0.20
28k
36k
42k
48k
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.54
-
0.75
-
-
-
-
-
-
-
0.62 1.00 1.00
-
-
-
-
(unit : kg)
76k
96k
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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