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)
3 5 10 15 20
Height
difference H
(m)
Û
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.936 0.914
10 - - 0.955 0.936 0.914
5 - 1.000 0.955 0.936 0.914
3 0.992 1.000 0.955 0.936 0.914
0 0.992 1.000 0.955 0.936 0.914
Û
2
Indoor unit
is lower than
outdoor unit
-3 0.987 0.995 0.950 0.931 0.909
-5 - 0.993 0.948 0.929 0.908
-10 - - 0.945 0.927 0.905
-15 - - - 0.922 0.900
COOLING
Pipe length (m)
3 5 10 15 20
Height
difference H
(m)
Û
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.914 0.877
10 - - 0.959 0.921 0.884
5 - 0.988 0.962 0.925 0.888
3 0.992 0.992 0.966 0.929 0.891
0 1.000 1.000 0.974 0.936 0.899
Û
2
Indoor unit
is lower than
outdoor unit
-3 1.000 1.000 0.974 0.936 0.899
-5 - 1.000 0.974 0.936 0.899
-10 - - 0.974 0.936 0.899
-15 - - - 0.936 0.899