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 - - - 0.938 0.920
10 - - 0.957 0.938 0.920
5 - 1.000 0.957 0.938 0.920
3 0.996 1.000 0.957 0.938 0.920
0 0.996 1.000 0.957 0.938 0.920
Û
2
Indoor unit
is lower than
outdoor unit
-3 0.991 0.995 0.952 0.933 0.915
-5 - 0.993 0.950 0.931 0.914
-10 - - 0.947 0.929 0.911
-15 - - - 0.924 0.906
COOLING
Pipe length (m)
3 5 10 15 20
Height
difference H
(m)
Û
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.947 0.927
10 - - 0.974 0.955 0.935
5 - 0.988 0.978 0.959 0.939
3 0.992 0.992 0.982 0.963 0.942
0 1.000 1.000 0.990 0.971 0.950
Û
2
Indoor unit
is lower than
outdoor unit
-3 1.000 1.000 0.990 0.971 0.950
-5 - 1.000 0.990 0.971 0.950
-10 - - 0.990 0.971 0.950
-15 - - - 0.971 0.950