Boiler Schematic - Baxi LUNA 3 COMFORT MAX Manual Para El Usuario

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Figure 20
Key:
1 D.H.W. priority sensor
2 Automatic by-pass
3 Water pressure switch
4 Three way valve
5 Flow sensor with filter and water flow rate limiter
6 D.H.W. NTC sensor
7 Three way valve motor
8 Gas valve
9 Ex­pansion vessel
10 Ignition electrode
11 Central heating NTC sensor
12 Overheat safety thermostat
13 Flue-water ex­changer
14 Flue hood
instructions pertaininG to the installer

30. boiler schematic

max 250 fi - max 310 fi
sealeD chaMBer
heating
domestic
gas
inlet
water outlet
72
max 310 fi
domestic
heating
water inlet
return
15 Fan
16 Positive pressure point
(for MAX 310 Fi model the positive point must be closed)
17 Air pressure switch
18 Negative pressure point
19 Flame detector electrode
20 Burner
21 Burner injectors
22 D.H.W. plate heat ex­changer
23 Automatic air vent
24 Pump and air separator
25 System filling cock
26 Boiler drain point
27 Manometer
28 Pressure relief valve
925.480.1 - GB
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