1.4
FUNCTIONAL DIAGRAM (fig. 2)
KEY
. 1. ---
. 2. Primary.exchanger
.
3. Combustion.chamber
. 4. Gas.valve
. 5. D.H.W..exchanger.with.plates.
.
6. Deviator.valve
. 7. C.H..sensor.(SM)
.
8. Safety.thermostat.
. 9. D.H.W..sensor.(SS)
. 1 1. Pump.high.efficiency
. 1 2. Expansion.vessel
. 1 3. 3.BAR.safety.valve
1 4. Boiler.discharge
.
1 6. Water.pressure.transducer
.
18. . D.H.W..flowmeter
66
19. . D.H.W..filter
20. . Loading
21. . Aqua.Guard.Filter.System
22. . Connection.plate.(optional)
23. . D.H.W..cock.(optional)
24. . Gas.cock.(optional)
25. . C.H..flow.cock.(optional)
26. . C.H..return.cock.(optional)
CONNECTIONS
. U. D.H.W..outlet.
. E. D.H.W..inlet
. G. Gas.connection
.M. C.H..flow
. R. C.H..return
Fig..2