Height difference H
1 Indoor unit is higher than outdoor unit.
2 Indoor unit is lower than outdoor unit.
Indoor unit
Indoor unit
Connection pipe
Outdoor unit
Outdoor unit
Connection pipe
HEATING
Pipe length (m)
5 7. 5 10 15 20 25
Height
difference H
(m)
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.977 0.958 0.939
10 - - 0.993 0.977 0.958 0.939
7.5 - 1.000 0.993 0.977 0.958 0.939
5 1.000 1.000 0.993 0.977 0.958 0.939
0 1.000 1.000 0.993 0.977 0.958 0.939
2
Indoor unit
is lower than
outdoor unit
-5 0.995 0.995 0.988 0.972 0.953 0.934
-7. 5 - 0.993 0.986 0.970 0.951 0.932
-10 - - 0.983 0.967 0.948 0.930
-15 - - - 0.962 0.944 0.925
COOLING
Pipe length (m)
5 7.5 10 15 20 25
Height
difference H
(m)
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.956 0.942 0.928
10 - - 0.977 0.963 0.950 0.936
7.5 - 0.988 0.981 0.967 0.953 0.940
5 0.992 0.992 0.985 0.971 0.957 0.943
0 1.000 1.000 0.993 0.979 0.965 0.951
2
Indoor unit
is lower than
outdoor unit
-5 1.000 1.000 0.993 0.979 0.965 0.951
-7. 5 - 1.000 0.993 0.979 0.965 0.951
-10 - - 0.993 0.979 0.965 0.951
-15 - - - 0.979 0.965 0.951