Install Instructions

IM-PR 566442 1114 (Design Manual)
30
Reverse return parallel piping occurs when the first branch connected on the supply is also the last branch
connected on the return. This configuration can aid in providing balanced flow throughout each parallel
branch by facilitating the installation of equivalent tubing lengths that cannot be installed in direct return
designs. Based on these equivalent lengths, reverse return piping may not require balancing valves to
achieve design flow rates.
Figure 1-24 Reverse return piping
From Heat or Cooling
Source
To Heat or Cooling
Source