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 - - - 0.967 0.943 0.917
10 - - 0.990 0.967 0.943 0.917
7.5 - 1.000 0.990 0.967 0.943 0.917
5 1.000 1.000 0.990 0.967 0.943 0.917
0 1.000 1.000 0.990 0.967 0.943 0.917
2
Indoor unit
is lower than
outdoor unit
-5 0.995 0.995 0.985 0.962 0.938 0.912
-7. 5 - 0.993 0.983 0.960 0.936 0.910
-10 - - 0.980 0.958 0.933 0.908
-15 - - - 0.953 0.929 0.903
COOLING
Pipe length (m)
5 7. 5 10 15 20 25
Height
difference H
(m)
1
Indoor unit is
higher than
outdoor unit.
15 - - - 0.968 0.961 0.954
10 - - 0.982 0.976 0.969 0.962
7.5 - 0.988 0.986 0.980 0.973 0.966
5 0.992 0.992 0.990 0.984 0.977 0.970
0 1.000 1.000 0.998 0.992 0.985 0.978
2
Indoor unit
is lower than
outdoor unit
-5 1.000 1.000 0.998 0.992 0.985 0.978
-7. 5 - 1.000 0.998 0.992 0.985 0.978
-10 - - 0.998 0.992 0.985 0.978
-15 - - - 0.992 0.985 0.978