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Les langues disponibles
30. FUNCTIONAL CIRCUIT DIAGRAM
3
2
1
31
DHW DHW
outlet inlet
Figure 20
Key:
1 boiler
2 boiler probe
3 DHW exchanger
4 expansion vessel
5 boiler drain tap
6 NTC heating probe
7 safety thermostat
8 ignition electrode
9 water-fumes exchanger
10 fumes conveyor
11 flue thermostat
12 flame detection electrode
13 gas train with injectors
14
safety valve on heating circuit 3 bar
15
differential hydraulic pressure switch
INSTRUCTIONS FOR FITTERS
240 i - 280 i
11
10
4
9
8
7
6
5
M
27
26
24
25
23
28
29
30
16
automatic vent valve
17
pump with air separator
18
gas valve
19
heating return filter
20
automatic by-pass
21
gas tap
22
pressure gauge
23
burner
24
three-way valve
25
three-way valve motor
26
boiler filling tap
27
safety valve on DHW circuit 8 bar
28
storage boiler discharge tap
29
flow adjuster
30
water supply tap
31
DHW expansion vessel
35
22
heating
heating
return
delivery
12
13
14
15
16
17
18
19
20
21
gas
7864176 - en
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