Gree U-match Serie Manual De Propietario página 26

DC Inverter U-match Series Duct Type Unit
(2) Outdoor unit is above the indoor unit.
It's necessary to add oil return bend and non-return bend at the lowest and
highest position of the vertical pipe, as shown below:
Dimensions for the making of oil return bend are as follows:
System gas pipe
Oil return bend
Outdoor unit
Non-return bend
Outdoor unit
System gas pipe
Install an oil return
bend every 6m
B
A
22
Indoor unit
Install an oil return
bend every 6m
Oil return bend
Indoor unit
C