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Installation -Piping
Fig. 4: SMART System Piping with 3-Port Zone Valve
(Domestic Priority)
Fig. 5:
SMART System Piping with 2-Port Zone Valves
(Domestic Priority)
1. Shut-off valves
2. Circulator
3. Expansion tank
1
3- Port
2
Priority
Valve
6
Cold water
3
5
1
1
2-Port
Priority Valve
(normally open)
2-Port
Priority Valve
(normally close)
6
2
Cold water
3
inlet
1
5
1
4. Drain valve
5. Feed valve
6. Air separator
11
inlet
4
4
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