ENGLISH-29
02
Inst
all
Ing
the
P
rO
duc
t
f
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Method to calculate the total amount of additional refrigerant
- Amount of additional refrigerant depends on the pipe length (
ⓐ
)
- Amount of additional refrigerant for each indoor unit (
ⓑ
) = ∑(Amount of additional refrigerant for each connected
indoor unit)
❇
Refer to the table
- Total amount of additional refrigerant =
ⓐ
+
ⓑ
❋
❋
Sum of total amount of additional refrigerant and the basic amount of refrigerant should not exceed 100 kg . If the
refrigerant exceeds 100kg, separate the module so that the weight of the refrigerant doesn't exceed 100 kg .
Ex .) For AM200MXWA
✴✴
, basic amount of refrigerant is 9 .8 kg, therefore total amount of additional refrigerant (
ⓐ
+
ⓑ
)
should not exceed 90 .2 kg .
f
f
Example of refrigerant calculation for H/P System
Classification
Size of liquid pipe
Length (m)
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
①
②
①
×
②
∑(
①
×
②
)
liquid pipe (
ⓐ
)
6 .35
5
0 .02
0 .1
ⓐ
7 .975
9 .52
70
0 .06
4 .2
12 .70
15
0 .125
1 .875
15 .88
10
0 .18
1 .8
Classification
Model name of
indoor unit
Number of units
Unit amount of
refrigerant (kg/EA)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
①
②
①
×
②
∑(
①
×
②
)
Indoor unit (
ⓑ
)
4way cassette
(AM071Fn4DEH
✴
)
3
0 .45
1 .35
ⓑ
3 .4
4way cassette
(AM090Fn4DEH
✴
)
1
0 .45
0 .45
Slim duct
(AM071FnlDEH
✴
)
3
0 .45
1 .35
1way cassette
(AM036Fn1DEH
✴
)
1
0 .25
0 .25
- Total amount of refrigerant (
ⓐ
+
ⓑ
) = 7 .975+3 .4=11 .375 (kg)
f
f
Example of refrigerant calculation for HR System
Classification
Size of liquid pipe
Length (m)
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
①
②
①
×
②
∑(
①
×
②
)
liquid pipe (
ⓐ
)
6 .35
15
0 .02
0 .3
ⓐ
11 .965
9 .52
112
0 .06
6 .72
12 .70
25
0 .125
3 .125
15 .88
10
0 .18
1 .8
6 .35
(EEV Kit ~ indoor
unit)
2
0 .01
0 .02
