Boiler Schematic - Baxi PRIME HT 240 Installers And Users Instructions

27.1 BOILER SCHEMATIC PRIME HT 1.120 - HT 1.240 HT 1.280
Figure 28
Key:
1 heating delivery cock
2 gas service cock
4 cold water inlet on/off valve and filter
5 heating return cock
10 pressure relief valve
11 manometer
12 boiler drain point
13 pump and air separator
14 automatic air vent
16 gas valve
17 fan
18 gas diaphragm
19 mixer with venturi
20 flue-water exchanger
SEALED CHAMBER
heating boiler gas
inlet outlet
21 air/gas mixture header
22 ignition electrode
23 main burner
24 ignition electrode
25 NTC flue sensor
26 coaxial fitting
27 expansion vessel
28 105°C overheat thermostat
29 central heating NTC sensor
30 siphon
31 water pressure switch
32 3-way valve motor
33 three way valve
34 automatic bypass
34
INSTRUCTIONS FOR THE INSTALLER
domestic water heating
inlet return