Samsung AM MXVAFC Series, Installation Manual

Page: 46 / 98

46
Refrigerant pipe installation
Classification
Model name of
indoor unit
Number of units
Unit amount of
refrigerant [kg/EA
(lb/EA)]
Amount of
additional
refrigerant [kg (lb)]
Total amount
of additional
refrigerant [kg (lb)]
① ② ① × ② ∑( ① × ② )
Indoor unit (
ⓑ
)
4way cassette
(AM018FN4DCH)
4 0 .45 (0 .99) 1 .8 (3 .96)
ⓑ
3 .30 (7 .26)
Slim duct
(AM024FNLDCH)
2 0 .45 (0 .99) 0 .90 (1 .98)
Slim duct
(AM012FNLDCH)
1 0 .35 (0 .77) 0 .35 (0 .77)
1way cassette
(AM012FN1DCH)
1 0 .25 (0 .55) 0 .25 (0 .55)
- Total amount of refrigerant (
ⓐ
+
ⓑ
) = 5 .575 + 3 .30 = 8 .875 (kg)
= 12 .19 + 7 .26 = 19 .45 (lb)
Temper grade and minimum thickness of the refrigerant pipe
Outer diameter Minimum thickness
Temper grade
mm inch mm inch
6 .35 1/4 0 .70 0 .028
Annealed
9 .52 3/8 0 .70 0 .028
12 .70 1/2 0 .80 0 .031
15 .88 5/8 1 .00 0 .039
19 .05 3/4 0 .90 0 .035
Drawn
22 .22 7/8 0 .90 0 .035
25 .40 1 1 .00 0 .039
28 .58 1 1/8 1 .10 0 .043
31 .75 1 1/4 1 .10 0 .043
34 .92 1 3/8 1 .21 0 .048
38 .10 1 1/2 1 .35 0 .053
41 .28 1 5/8 1 .43 0 .056
44 .45 1 3/4 1 .60 0 .063
50 .80 2 2 .00 0 .079
53 .98 2 1/8 2 .10 0 .083
• For pipes larger than Ø 3/4" (Ø 19 .05mm), drawn type (C1220T-1/2H or C1220T-H) type copper pipe must be
used . If a annealed type (C1220T-O) copper pipe is used, pipe may break due to its low pressure resistance and
cause personal injury .
CAUTION