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Refrigerant pipe installation
Selecting additional refrigerant charging
X
X
Basic refrigerant
The basic amount of additional refrigerant charged at a factory
Model
Refrigerant
Factory charge
kg
lbs
AM036FXMDCH
✴
R410A
3 .2
7 .055
AM048FXMDCH
✴
3 .2
7 .055
AM053FXMDCH
✴
3 .3
7 .275
X
X
Charging additional refrigerant
The amount of additional refrigerant charging =
The amount of refrigerant charging for pipe +
the amount of refrigerant correction charging for an indoor unit .
1) The amount of additional refrigerant depending on the pipe size .
- Amount of additional refrigerant has to be calculated based on the sum of all liquid pipe length .
Size of liquid pipe [mm(inch)]
6.35 (1/4)
9.52 (3/8)
12.7 (1/2)
15.88 (5/8)
Additional amount [kg/m (lb/ft)]
0 .02 (0 .013)
0 .06 (0 .040)
0 .125 (0 .084)
0 .18 (0 .121)
Additional refrigerant charging calculation = The sum of total length of Ø 9.52 liquid pipe(m) x 60g + the sum of
total length of Ø 6.35 liquid pipe(m) x 20g
Ex) a(Ø 9 .52)=40m(131 .23’), b+c+d(Ø 9 .52)=15m(49 .21’), e+f+g(Ø 6 .35)=15m(49 .21’)
The amount of additional refrigerant = 55m(180 .45’) x 60g + 15m(49 .21’) x 20g = 3600g
2) The amount of additional refrigerant for each indoor unit
[Unit: kg(lb)]
Capacity(kBtu)
Model
6
7.5
9
9.5
12
15
18
20
24
27
30
36
48
54
1way cassette
(AM
✴✴✴
FN1DC
✴
/AA)
0 .25
(0 .55)
0 .25
(0 .55)
0 .25
(0 .55)
Mini 4way cassette S (600x600)
(AM
✴✴✴
FNNDC
✴
/AA)
0 .37
(0 .82)
0 .37
(0 .82)
0 .37
(0 .82)
0 .37
(0 .82)
4way cassette
(AM
✴✴✴
FN4DC
✴
/AA)
0 .45
(0 .99)
0 .45
(0 .99)
0 .45
(0 .99)
0 .69
(1 .52)
0 .69
(1 .52)
0 .69
(1 .52)
360 cassette
(AM
✴✴✴
KN4DC
✴
/AA)
0 .45
(0 .99)
0 .45
(0 .99)
0 .45
(0 .99)
0 .45
(0 .99)
0 .69
(1 .52)
0 .69
(1 .52)
0 .69
(1 .52)
Floor Standing Unit
(AM
✴✴✴
JNFDC
✴
/AA,
AM
✴✴✴
JNGDC
✴
/AA)
0 .12
(0 .26)
0 .22
(0 .49)
0 .22
(0 .49)
0 .32
(0 .72)
0 .32
(0 .72)
Slim duct
(AM
✴✴✴
FNLDC
✴
/AA)
0 .24
(0 .53)
0 .24
(0 .53)
0 .24
(0 .53)
0 .45
(0 .99)
0 .45
(0 .99)
0 .45
(0 .99)
0 .45
(0 .99)
0 .62
(1 .37)
MA duct
(AM
✴✴✴
JNMDC
✴
/AA)
0 .37
(0 .81)
0 .37
(0 .81)
0 .37
(0 .81)
0 .54
(1 .19)
0 .54
(1 .19)
0 .47
(1 .04)
0 .47
(1 .04)
0 .47
(1 .04)
0 .68
(1 .50)
0 .68
(1 .50)
MSP duct
(AM
✴✴✴
FNMDC
✴
/AA)
0 .28
(0 .62)
0 .28
(0 .62)
0 .54
(1 .19)
0 .54
(1 .19)
0 .68
(1 .50)
HSP duct
(AM
✴✴✴
FNHDC
✴
/AA)
0 .68
(1 .50)
0 .68
(1 .50)
Wall mounted
(AM
✴✴✴
FNTDC
✴
/AA)
0 .24
(0 .53)
0 .24
(0 .53)
0 .24
(0 .53)
0 .36
(0 .79)
0 .36
(0 .79)
0 .36
(0 .79)
DVM S Eco_IM_03408A-05_EN.indd 26
2016-11-11 오후 1:27:54