Height difference H
1 Indoor unit is upper than outdoor unit.
2 Indoor unit is under than outdoor unit.
Indoor unit
Indoor unit
Connection pipe
Outdoor unit
Outdoor unit
Connection pipe
HEATING
Pipe length (m)
5m 7.5m 10m 15m 20m
17ft. 25ft. 33ft. 50ft. 67ft.
Height
difference H
Û
1
Indoor unit is
upper than
outdoor unit.
15m 50ft. - - - 0.933 0.925
10m 33ft. - - 0.981 0.933 0.925
7.5m 25ft. - 1.000 0.981 0.933 0.925
5m 17ft. 1.017 1.000 0.981 0.933 0.925
0m 0ft. 1.017 1.000 0.981 0.933 0.925
Û
2
Indoor unit is
under than
outdoor unit
-5m -17ft. 1.012 0.995 0.976 0.928 0.920
-7. 5m -25ft. - 0.993 0.974 0.926 0.918
-10m -33ft. - - 0.971 0.923 0.916
-15m -50ft. - - - 0.914 0.906
COOLING
Pipe length (m)
5m 7.5m 10m 15m 20m
17ft. 25ft. 33ft. 50ft. 67ft.
Height
difference H
Û
1
Indoor unit is
upper than
outdoor unit.
15m 50ft. - - - 0.877 0.874
10m 33ft. - - 0.956 0.891 0.888
7.5m 25ft. - 0.988 0.960 0.895 0.892
5m 17ft. 1.017 0.992 0.964 0.899 0.895
0m 0ft. 1.025 1.000 0.971 0.906 0.902
Û
2
Indoor unit is
under than
outdoor unit
-5m -17ft. 1.025 1.000 0.971 0.906 0.902
-7. 5m -25ft. - 1.000 0.971 0.906 0.902
-10m -33ft. - - 0.971 0.906 0.902
-15m -50ft. - - - 0.906 0.902