Yes for all three lines. The liquid line needs to be connected after the system dryer (only if the system already has one. We are looking at the filter part of the dryer to protect the desuperheater valve. When connecting the hot gas line you need to ensure no oil traps are formed at the connection or could cause the APR chamber to trap oil. Do not connect into the bottom of a horizontal hot gas line, A potential oil trap could be formed. Installation requires connection into the side or top of the horizontal line. The same is true with the suction line with one critical addition, because the velocity in the suction line is lower (than the hot gas line) the connection into it needs to be from the top (reference of 10-2 on a clock), even connecting into the side could cause some issues pertaining to oil.