7
2.7 BOILER SCHEMATIC
Alpha CD13R, 18R, 24R - Technical Data
1
- Flue sampling point
2
- Flue thermostat
3
- Injector
4
- Gas valve
5
- Primary return temperature sensor
6
- Venturi
7
- Main burner
8
- Primary/condensing heat exchanger
9
- Room sealed chamber
10 - Fan
11 - Pressure differential test points
Fig. 2.3
12 - Flue hood
13 - Overheat thermostat
14 - Primary flow temperature sensor
15 - Drain point
16 - Ignition electrodes
17 - Flame sensing electrode
18 - Venturi negative point
19 - Venturi positive point
20 - Gas service cock
21 - Condensate trap
Gas
Condensate
discharge
Primary
Heating
return
Primary
Heating
flow
20
4
1
-
-
+
+
10
21
11
2
14
16
3
12
8
7
17
18
6
19
9
15
13
5
Содержание 41 532 03
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