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 0.938
10 - - 0.993 0.977 0.958 0.938
7.5 - 1.000 0.993 0.977 0.958 0.938
5 1.000 1.000 0.993 0.977 0.958 0.938
0 1.000 1.000 0.993 0.977 0.958 0.938
2
Indoor unit
is lower than
outdoor unit
-5 0.995 0.995 0.988 0.972 0.953 0.933
-7. 5 - 0.993 0.986 0.970 0.952 0.932
-10 - - 0.983 0.967 0.949 0.929
-15 - - - 0.962 0.944 0.924
COOLING
Pipe length (m)
5 7.5 10 15 20 25
Height
difference H
(m)
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.937 0.912 0.888
10 - - 0.970 0.944 0.919 0.896
7.5 - 0.988 0.974 0.948 0.923 0.899
5 0.992 0.992 0.978 0.952 0.927 0.903
0 1.000 1.000 0.986 0.960 0.934 0.910
2
Indoor unit
is lower than
outdoor unit
-5 1.000 1.000 0.986 0.960 0.934 0.910
-7. 5 - 1.000 0.986 0.960 0.934 0.910
-10 - - 0.986 0.960 0.934 0.910
-15 - - - 0.960 0.934 0.910