12
Key to figure 3:
1 = boiler model 45AN or 45AE
2 = automatic air vent
3 = air intake
4 = flue gases discharge
5 = sealed combustion chamber
7 = burner
8 = fan
9 = gas valve
10 = condensate discharge trap
14 = pressure gauge
17 = safety relief valve
20 = safety relief valve discharge
21 = condensation discharge pipe
22 = heating supply pipe
24 = gas inlet
26 = heating return pipe
45 = U7 = flue gas temperature sensor and high limit safety
switch
46 = U1 = boiler temperature sensor
47 = U6 = high limit temperature sensor
50 = U8 = return temperature sensor
51 = flue pressure switch
Figure 3 - 45AN and 45AE Hydronic functional schematic
4 - FUNCTION OVERVIEW
To Next Page
Loading...