LAARS Mighty Therm2 MT2V (Sizes 200, 300, 400) - Install and Operating Manual - Manual (Page 19)

Mighty Therm 2
(200, 300, 400) Page 19
Figure 7. Hydronic Piping — Primary-Secondary, Reverse-Return.
Figure 8. Hydronic Piping — Primary-Secondary, Reverse-Return, Low Temperature.