lp-364 Rev. 000 Rel. 007 Date 2.12.18
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Part 7 - System Piping Applications
Figure 5 - System Piping Applications
A. Reverse Return
In Figure 6 you will find suggested collector piping diagrams utilizing reverse
return for balanced flow:
NOTE:
Landscape or horizontal examples not recommended for drain back
systems.
Figure 6 - Reverse Return Piping Applications
Figure 7 - Balanced Flow Meter Piping Applications
B. Balance Flow Valves with Meters
Below you will find suggested collector piping diagrams using balance flow
valves and meters for balanced flow. The following configurations may not
work in drain back systems. These drawings can be applied to various system
configurations, but may not meet certain requirements.
C. Pressure System Plumbing Panel Attachment
See the following diagram for examples of panel plumbing attachments for
pressure systems. This diagram can be used for either vacuum tube or flat plate
collectors. The collector can be plumbed from left to right or right to left. Note
the air purge is on the hot out pipe. For collectors with 1” male threaded fitting
(NPT), use high-temperature thread sealant that can be used with glycol. For
collectors with 1” copper pipe, sweat a 1” sweat-to-male pipe thread.
