Baxi ECO 3 Instructions Manual page 25

Figure 23
Key:
1 water pressure switch
2 automatic bypass
3 gas valve
4 ignition electrode
5 central heating NTC sensor
6 overheat safety thermostat
7 flue-water exchanger
8 flue hood
9 flue thermostat
instructions pertaininG to the
1.240 i
heating gas
inlet
10 flame detector electrode
11 main burner
12 burner injectors
13 expansion vessel
14 automatic air vent
15 pump and air separator
16 boiler drain point
17 manometer
18 pressure relief valve
instaLLer
25
domestic heating
water inlet return
924.674.3 - GB