10
AGUADENS
COSMOGAS
Key to figure 4.1:
1 = Water heater
2 = Combustion air intake spigot
3 = Exhaust flue spigot
4 = Exhaust flue temperature sensor 1 (Par.
1006
)
5 = Exhaust flue temperature safety sensor 2 (Par.
1014
)
6 = Sealed chamber
7 = Water collection tub
8 = D.H.W. outlet temperature sensor 1 (Par.
1001
)
9 = D.H.W. outlet temperature safety sensor 2 (Par.
1005
)
10 = Burner
11 = Titanium plated stainless steel VRC type heat exchanger
12 = Fan
13 = Cold water inlet temperature sensor (Par.
1007
)
14 = Condensate collection siphon with sediment decanter
15 = Air/gas mixer
16 = Pneumatic gas valve
17 = Safety valve
18 = Secondary return manual control valve
19 = Recirculation pump
20 = Non-return valve
21 = Water flow rate measuring device
22 = Secondary return connection
23 = Secondary return blanked connection
24 = Domestic hot water sensor (Par.
1002
)
25 = Gas isolation valve
26 = Gas inlet
27 = Domestic cold water inlet
28 = Safety valve condensate drain collector
29 = Domestic hot water outlet
4 - OPERATION
Figure 4.1 - Hydraulic layout
AGUADENS
Figure 4.2 - Secondary return manual control valve
020003.01.044
OPEN
Secondary
return not present
CLOSE
Secondary
return present
020003.01.045
