NTI Trinity TX151(C) - Primary-Secondary Plumbing (Non-Combi); Single System Circulator Configuration

Boiler and Heating System Piping │ Tx I&O Manual
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Figure 10-4 Tx51-200 Primary-Secondary Plumbing (non-Combi)
(Single System Circulator Configuration)
Figure illustrates the basic
plumbing requirements for
a Tx51-151 (non-Combi) boiler installation with a
single Central Heating circulator. Refer to Figures
10-2(a) and 10-2(b) for boiler fitting identification.