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Single
zone setup
with one pump
1. Goes to house
heat exchanger
2. Return from house heat exchanger
3. Power to pump, blower and thermostat.
4. Inlet to potable hot water coil from hot water heater
5. Outlet from potable water coil to hot water heater (coil not seen - inside of water
jacket)
6. To manual fill valve
7. Water supply to furnace from manual valve
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