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Refrigerant Piping
ENGLISH
Installation Manual 29
The Amount of Refrigerant
The calculation of the additional charge should take into account the length of pipe.
Additional charge(lbs)
Total charge(lbs) Product charge(lbs) Additional charge(lbs)
Product charge(lbs)
=
x 0.041(lbs/ft)
Length(ft) of
liquid pipe of Ø 3/8 in
+
x 0.015(lbs/ft)
Length(ft) of
liquid pipe of Ø1/4 in
+
Correction factor of
outdoor unit
+
Correction factor of
Indoor unit
=+
Example : 5HP
Additional charge amount R (lbs)
= (Lx x 0.015(lbs/ft) + (Ly x 0.041(lbs/ft) + Correction factor of outdoor unit + Correction factor of indoor unit
= (36 x 0.015(lbs/ft) + (84 x 0.041(lbs/ft) + 0 + 0.33 + 0.35 + 0.40 + 1.06
= 6.124
Lx : Real total length of liquid pipe Ø1/4(ft)
Ly : Real total length of liquid pipe Ø3/8(ft)
L1
L2 L3
abcd
Ø1/4:15ft
d
Ø1/4:12ft
c
Ø1/4:9ft
b
Ø3/8:9ft
a
Ø3/8:15ft
L3
Ø3/8:30ft
L2
Ø3/8:30ft
L1
1WAY
2.2kW
2WAY
5.6kW
4WAY
2.2kW
4WAY
7.1kW
Note:
Fill in the f-gas Label attached on outdoor about the quantity of the fluorinated greenhouse gases
① Manufacturing site (See Model Name label)
② Installation site (If possible being placed adjacent to the service points for the addition or removal of refrigerant)
③ The total Charge (①+②)
n Correction factor of Indoor unit
Unit : kg(lbs)
Capacity(Btu/h(kW))
Type
5k
(1.6)
7k
(2.2)
9k
(2.8)
12k
(3.6)
15k
(4.5)
18k
(5.6)
24k
(7.1)
28k
(8.2)
30k
(8.8)
36k
(10.6)
42k
(12.3)
48k
(14.1)
54k
(15.8)
Ceiling Concealed Duct (Low Static) -
0.17
(0.37)
0.17
(0.37)
0.17
(0.37)
0.17
(0.37)
0.37
(0.82)
0.37
(0.82)
------
Ceiling Concealed Duct (High Static) -
0.26
(0.57)
0.26
(0.57)
0.26
(0.57)
0.26
(0.57)
0.26
(0.57)
0.26
(0.57)
0.44
(0.97)
-
0.44
(0.97)
0.44
(0.97)
0.44
(0.97)
-
Wall Mounted -
0.24
(0.53)
0.24
(0.53)
0.24
(0.53)
0.24
(0.53)
0.28
(0.62)
0.28
(0.62)
------
1Way Ceiling Cassette -
0.15
(0.33)
0.15
(0.33)
0.15
(0.33)
-
0.29
(0.64)
0.29
(0.64)
------
2Way Ceiling Cassette -----
0.16
(0.35)
0.16
(0.35)
------
4Way Ceiling Cassette
0.18
(0.40)
0.18
(0.40)
0.25
(0.55)
0.25
(0.55)
0.32
(0.71)
0.32
(0.71)
0.48
(1.06)
0.48
(1.06)
-
0.64
(1.06)
0.64
(1.06)
0.64
(1.06)
-
ARTCOOL Gallery -
0.10
(0.22)
0.10
(0.22)
0.10
(0.22)
---------
Floor Standing -
0.17
(0.37)
0.17
(0.37)
0.17
(0.37)
0.17
(0.37)
0.37
(0.82)
0.37
(0.82)
------
Ceiling & Floor - -
0.10
(0.22)
0.10
(0.22)
---------
Ceiling Suspended -----
0.35
(0.77)
0.35
(0.77)
------
Vertical AHU -----
0.47
(1.04)
0.47
(1.04)
-
0.47
(1.04)
0.71
(1.57)
0.91
(2.01)
0.91
(2.01)
0.91
(2.01)
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