NTI FTV150C - Plumbing Schematic - Direct to Zones

Boiler and Heating System Piping │ FTV I&O Manual
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Figure 10-10 Plumbing Schematic – Direct to Zones (Combi)
Figure 10-10 illustrates the basic plumbing requirements for an FTV-Combi boiler
installation piped “Direct to Zones”. Limited to zone valve (or non-zone circulator)
distribution systems with small flow requirements, i.e., systems requiring no more than 6
GPM at 9 ft. of head pressure.
Manual Bypass Valve –
set to MAX (fully clockwise).