PETIT
48
6.4 Electrical components
6.5 Plumbing components
Key:
1 - Membrane expansion tank
2 - System drain cock
3 - Safety valve
4 - System filling connection
5 - Heating circulating pump
6 - Heating chamber
– return pipe
7 - Pressure transducer
8 - Expansion tank connection
9 - Air venting valve
10 - Return pipe
Key :
1 - Control panel
2 - Safety thermostat
3 - Room probe
4 - ON-OFF switch with fuses
5 - Water probe
6 - Fume probe
7 - Electronic card
8 - Vacuum switch
9 - Serial port
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