Alpha CB24 - Boiler Schematic

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2.10 BOILER SCHEMATIC
Alpha CB24/28 - Technical Data
1 - Seasonality valve (N/A to 24X/28X)
1 - Flow regulator (24X/28X)
2 - DHW switch
3 - Diverter valve and DHW flow valve
4 - Gas valve
5 - Primary temperature sensor
6 - DHW heat exchanger
7 - Main burner
8 - Primary heat exchanger
9 - Room sealed chamber
10 - Fan
11 - Air pressure switch
12 - Flue hood
13 - Overheat thermostat
14 - Expansion vessel
Fig. 2
15 - Automatic air vent
16 - Pump
17 - Drain point
18 - Pressure relief valve
19 - Primary pressure switch
20 - Ignition electrodes
21 - Flame sensing electrode
22 - DHW temperature sensor (N/A to 24X/28X)
23 - Flue sampling point
24 - Gas service cock
25 - Mains inlet on/off valve
26 - On/off valve (2 off)
27 - Automatic by-pass (N/A to 24X/28X)
28 - Cyclone separator (N/A to 24X/28X)