Haier MRV III-RC Service Manual page 74

2. Pipe length between outdoors
Outdoor 1
Gas/Liquid pipe: L1+L3 10m, L2+L3 10m
Oil equalization pipe: L5+L6 10m
Height difference between outdoors: h 5m
Note:
a. HZG-R30A includes HZG-R20A;
b. The connection pipe among outdoors can not be higher than the stop valve position;
c. The connection pipe among outdoors should be horizontal or be in a certain angle as the below figure
(less than 15 degree).
Outdoor 1
Outdoor 2
L5
L2
L1
Outdoor 2
70
Outdoor 3
L6
L4
L3
2st gather pipe 1st gather pipe
Outdoor 3