Samsung KXWD Series, Installation Manual

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ENGLISH-35
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INST
ALLING
THE
PRODUC
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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 (220 lb). If
the refrigerant exceeds 100 kg (220 lb), separate the module so that the weight of the refrigerant doesn’t exceed 100 kg
(220 lb).
Ex.) For AM192HXWA
✴✴
, basic amount of refrigerant is 9.8 kg (21.6 lb), therefore total amount of additional refrigerant
(
ⓐ
+
ⓑ
) should not exceed 90.2 kg (198.9 lb).
f
Example of refrigerant calculation for H/P System
Classification
Size of
liquid pipe
[mm (inch)]
Length
[m (ft)]
Unit amount of
refrigerant
[kg/m (lb/ft)]
Amount of additional
refrigerant
[kg (lb)]
Total amount of
additional refrigerant
[kg (lb)]
① ② ① × ② ∑( ① × ② )
Liquid pipe ( ⓐ )
6.35 (1/4”) 5 (16.4) 0.02 (0.013) 0.1 (0.22)
ⓐ 7.975 (17.58)
9.52 (3/8”) 70 (229.7) 0.06 (0.040) 4.2 (9.26)
12.70 (1/2”) 15 (49.2) 0.125 (0.084) 1.875 (4.13)
15.88 (5/8”) 10 (32.8) 0.18 (0.121) 1.8 (3.97)
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 ( ⓐ + ⓑ ) = 7.975 kg (17.58 lb) + 3.30 kg (7.26 lb)=11.275 kg (24.86 lb)
f
Example of refrigerant calculation for HR System
Classification
Size of liquid
pipe [mm
(inch)]
Length
[m (ft)]
Unit amount of
refrigerant
[kg/m (lb/ft)]
Amount of additional
refrigerant
[kg (lb)]
Total amount of
additional refrigerant
[kg (lb)]
① ② ① × ② ∑( ① × ② )
Liquid pipe ( ⓐ )
6.35 (1/4”) 15 (49.2) 0.02 (0.013) 0.3 (0.64)
ⓐ 11.965 (26.24)
9.52 (3/8”) 112 (367.5) 0.06 (0.040) 6.72 (14.70)
12.70 (1/2”) 25 (82.0) 0.125 (0.084) 3.125 (6.89)
15.88 (5/8”) 10 (32.8) 0.18 (0.121) 1.8 (3.97)
6.35 (1/4”)
(EEV Kit ~
indoor unit)
2 (6.6) 0.01 (0.0067) 0.02 (0.04)
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