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TECHNICAL SPECIFICATIONS
4 - DESIGNATION OF COMPONENTS
10
13
9
31
19
24
23
15
12
34
10
35
6
1
18
28
22
26
33
27
27
8
29
25
11
21
16
FC
X-
0
2
-U
Fig. 2
Front view
Rear view
1) Control panel
2) 1
st
circuit heating flow
3) 1
st
circuit heating return
4) 2
nd
circuit heating flow / Primary flow - (outlet of the
boiler to the domestic hot water preparation) (optional)
5) 2
nd
circuit heating return / Primary return - (return from
domestic hot water preparation to the boiler) (optional)
6) Plastic cover
7) Drain cock
8) Oil supply
9) Terminal box protection plate
10) Condenser
11) Oil burner (supplied separately)
12) Sight glass
13) Boiler shell
14) /
15) Combustion test point
16) Siphon
17) Combustion product outlet
18) Heating circulating pump
19) Safety valve
20) Weld for air bleed connection (bend + air bleed delive-
red with the boiler)
21) Air inlet duct to the burner
22) Expansion vessel
[8 L (2.1 gal) = FCX 22 / 12 L (3.2 gal) = FCX 30]
23) Manual mixing valve
24) Safety valve outlet
25) Pocket for boiler temperature control thermostat bulb
26) Water overheating safety thermostat
27) Opening for passage of handling bars
28) Temperature thermometer bulb, heating outlet 1
st
cir-
cuit
29) Burner safety reset button
30) Condensate drain
31) Opening for passage of 230 V cables
32) Opening for passage of sensor cables
33) Combustion product overheating safety thermostat
34) Pocket for combustion product overheating safety
thermostat bulb
35) Pocket for water overheating safety thermostat bulb
36) Hole for oil hose raceway and outlet of the safety valve
37) Burner electrical supply
