Samsung DVM S AM MXVAFC Series - Page 46

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)]
①②①×② ∑(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
t 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