11
ENGLISH
Technical Features
KEY
N° C.E. S.E. Description
1 db SS Domestic hot water temper-
ature sensor (N.U.)
2 FLS Flow switch with cold water
lter (N.U.)
3 VG Gas valve
4 Fd E.
ACC
/RIL
Ignition/detection electrode
5 Burner
6 Combustion chamber
7 AF TF Flue gas anti-overow ther-
mostat
8 Expansion vessel
9 FR
HT
Heat exchanger
10 HL TL Safety thermostat
11 Hb SR Heating temperature sensor
12 Ht P Pump
13 Lp DK Water deficiency pressure
switch
14 Boiler drain valve
15 Filling valve
16 Diverter valve
17 Plate heat exchanger
20 Safety valve
21 Automatic by-pass
25 Vent valve
40 Manual vent valve
41 DHW sensor
42 DHW Expansion vessel
43 Water tank
An Anode
C Domestic hot water
outlet
G ½
G Gas inlet G ¾
F Cold water inlet G ½
M Heating system ow G ¾
R Heating system return G ¾
Rc Filling valve
Sb Drain water tank
Sc Boiler drain (N.U.)
Svs Safety valve drain
Svsb
Tank safety valve drain
C.E. = ERROR CODES see
par. 4.6
S.E. = WIRING DIAGRAM
KEY see par. 4.5
Component not used
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