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 - - - 0.976 0.957 0.938
10 - - 0.991 0.976 0.957 0.938
7.5 - 1.000 0.991 0.976 0.957 0.938
5 1.000 1.000 0.991 0.976 0.957 0.938
0 1.000 1.000 0.991 0.976 0.957 0.938
2
Indoor unit
is lower than
outdoor unit
-5 0.995 0.995 0.986 0.971 0.952 0.933
-7. 5 - 0.993 0.984 0.969 0.950 0.931
-10 - - 0.981 0.966 0.947 0.929
-15 - - - 0.961 0.943 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 - - - 0.955 0.941 0.927
10 - - 0.976 0.962 0.949 0.935
7.5 - 0.988 0.980 0.966 0.952 0.939
5 0.992 0.992 0.984 0.970 0.956 0.942
0 1.000 1.000 0.992 0.978 0.964 0.950
2
Indoor unit
is lower than
outdoor unit
-5 1.000 1.000 0.992 0.978 0.964 0.950
-7. 5 - 1.000 0.992 0.978 0.964 0.950
-10 - - 0.992 0.978 0.964 0.950
-15 - - - 0.978 0.964 0.950