42
Refrigerant pipe installation
f Example of refrigerant calculation for HP models
Classication Size of liquid pipe
Length (m)
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
①②①×② ∑(①×②)
Liquid pipe (ⓐ)
Ø 6.35 35 0.02 0.7
ⓐ 5.575
Ø 9.52 50 0.06 3.0
Ø 12.70 15 0.125 1.875
Classication
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)
①②①×② ∑(①×②)
Indoor unit (ⓑ)
4way cassette
(AM071FN4DEH✴)
40.451.80
ⓑ 3.10
Slim duct
(AM056FNLDEH✴)
20.350.70
Slim duct
(AM045FNLDEH✴)
10.350.35
1way cassette
(AM036FN1DEH✴)
10.250.25
- Total amount of refrigerant (ⓐ+ⓑ) = 5.575+3.10 = 8.675 (kg)
f Example of refrigerant calculation for HR models
Classication Size of liquid pipe
Length (m)
Unit amount of
refrigerant (kg/m)
Amount of
additional
refrigerant (kg)
Total amount
of additional
refrigerant (kg)
①②①×② ∑(①×②)
Liquid pipe (ⓐ)
Ø 6.35 15 0.02 0.3
ⓐ 11.965
Ø 9.52 112 0.06 6.72
Ø 12.70 25 0.125 3.125
Ø 15.88 10 0.18 1.8
Ø 6.35
(EEV Kit ~ indoor unit)
20.010.02