E.C.A. Proteus Premix Series Installation And User's Operating Instructions page 7

5.3.2- HST Model
18
19
1
21
2
3
4
5
6
7
8
10
9
BOILER
17 16
22
11 12
Figure 2.1
Boiler outlet
Boiler return
1- Main Exchanger
2- Silencer
3- Venturi
4- Fan
15
5- 3 Way Valve
6- Condensing Water Hose
7- Outlet Manifold
8- 3 Bar Safety Valve
9- Pressure Sensor
10- Siphon
11- Gas Valve
12- Return Manifold
13- Pump
14- Flexible Connection Hose
20
15- Expansion Tank (8 liters)
16- Expansion Tank Holder Bracket
17- Rainwater Hose
14 18- Rainwater Collection Reservoir
19- Ignition Electrode
20- Inlet Temperature Sensor
21- Outlet Temperature Sensor
13
22- Flue Gas Sensor
CH return
CH outlet
Figure 2.2
7