Boiler Schematic - Baxi ECO 3 Instructions Manual

seaLeD chaMBer
heating
inlet
Figure 20
Key:
1 DHW priority sensor
2 automatic by-pass
3 water pressure switch
4 three way valve
5 DHW NTC sensor
6 flow sensor with filter and water flow rate limiter
7 3-way valve motor
8 gas valve
9 ignition electrode
10 central heating NTC sensor
11 overheat safety thermostat
12 flue-water exchanger
13 flue hood
14 fan
instructions pertaininG to the

31. BOIlER SCHEMatIC

240 fi - 280 fi
domestic gas domestic
water outlet water inlet
instaLLer
heating
return
15 air pressure switch
16 positive pressure point
17 negative pressure point
18 flame detector electrode
19 main burner
20 burner injectors
21 expansion vessel
22 plate heat exchanger (D.H.W.)
23 automatic air vent
24 pump and air separator
25 filling the system
26 boiler drain point
27 manometer
28 pressure relief valve
22
280 Fi
0606_2701
924.674.3 - GB