Technical data

23
924.674.3 - GBINSTRUCTIONS PERTAINING TO THE INSTALLER
Key:
1 DHW priority sensor
2 automatic by-pass
3 water pressure switch
4 three way valve
5 DHW NTC sensor
6 ow sensor with lter and water ow rate limiter
7 3-way valve motor
8 gas valve
9 ignition electrode
10 central heating NTC sensor
11 overheat safety thermostat
12 ue-water exchanger
13 ue hood
14 ue thermostat
15 ame detector electrode
16 main burner
17 burner injectors
18 expansion vessel
19 plate heat exchanger (D.H.W.)
20 automatic air vent
21 pump and air separator
22 lling the system
23 boiler drain point
24 manometer
25 pressure relief valve
240 i
Figure 21
0503_0916/CG1647
heating domestic gas domestic heating
inlet water outlet water inlet return