•
• •
•
The branch pipe should be horizontal to or perpendicular to the indoor unit.
•
• •
•
Installing branch pipes
18.3. Refrigerant charging
•
• •
•
For twin systems
The pipe length is the total of the branch pipe (L) and the junction pipes (Ia
→
tIb
→
t Ic in order from the thickest diameter). At
the point where the pipe length exceeds 30 m, determine the amount of refrigerant for the remaining liquid-side pipe diameters
and pipe lengths from the following table in order to charge the system.
69