WATER SUPPLY CIRCUIT
All manuals and user guides at all-guides.com
LEGEND
A
Gas
Cold water inlet
B
C
Hot water outlet
System delivery
D
E
System return
System deliver y control
1
sensor
Air bleed valve
2
3
Control electrode
Nozzle connection
4
5
Ignition electrodes
6
Ignition transformer
7
Fan
8
Air pressure switch
S y s t e m r e t u r n c o n t r o l
9
sensor
10 Gas valve
11 Condensation discharge
trap
12 Circulating pump
13 Heating circuit expansion
tank (8 liters)
14 Lack of water pressure
switch
15 Safety valve
16 Hydrometer
17 Filling cock
18 Drain cock
19 90 l. water-heater
20 Hot water circuit expansion
tank (3 liters)
21 Water-heater sensor
22 Magnesium anode
23 Water-heater safety valve
24 3-way valve
37