E.C.A. Fortius Service Manual page 5

Main Components
Table 3a
FO 24 BB
1 Microcontroller Board
Bitermic (Main Board)
2 User Interface
3 Gas Valve
4 Burner (13 blade)
5 24 kW Heat Exchanger
(bithermic)
Hydroblock (bithermic)
6
7 a) Pump
8 b) 3 Bar Pressure
Relief Valve
9 c) Discharge Tap
10 d) Filling Tap
11 e) Water Pres. Sensor
12 f) Water Flow Sensor
13 -
14 DHW NTC Sensor
(Surface Mount)
15 CH NTC Sensor
(Direct Immersion)
16 -
17 Limit Thermostat
18 Expansion Vessel
19 -
20 TTB Sensor
21 -
22 Manometer
23 Ignition Electrode
24 Ionization Electrode
25 -
26 Timer
FO 24 HB
Microcontroller Board
Bitermic (Main Board)
User Interface
Gas Valve
Burner (13 blade)
24 kW Heat Exchanger
(bithermic)
Hydroblock (bithermic)
a) Pump
b) 3 Bar Pressure
Relief Valve
c) Discharge Tap
d) Filling Tap
e) Water Pres. Sensor
f) Water Flow Sensor
-
DHW NTC Sensor
(Surface Mount)
CH NTC Sensor
(Direct Immersion)
-
Limit Thermostat
Expansion Vessel
Air Pressure Switch
-
Fan
Manometer
Ignition Electrode
Ionization Electrode
Concentric Air/Flue Kit
Timer
4