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 - - - 0.937 0.915
10 - - 0.956 0.937 0.915
5 - 1.000 0.956 0.937 0.915
3 0.990 1.000 0.956 0.937 0.915
0 0.990 1.000 0.956 0.937 0.915
Û
2
Indoor unit
is lower than
outdoor unit
-3 0.985 0.995 0.951 0.932 0.910
-5 - 0.993 0.949 0.930 0.909
-10 - - 0.946 0.928 0.906
-15 - - - 0.923 0.901
COOLING
Pipe length (m)
3 5 10 15 20
Height
difference H
(m)
Û
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.936 0.908
10 - - 0.969 0.943 0.915
5 - 0.988 0.973 0.947 0.919
3 0.992 0.992 0.977 0.951 0.922
0 1.000 1.000 0.985 0.959 0.930
Û
2
Indoor unit
is lower than
outdoor unit
-3 1.000 1.000 0.985 0.959 0.930
-5 - 1.000 0.985 0.959 0.930
-10 - - 0.985 0.959 0.930
-15 - - - 0.959 0.930