Unical S 24, Manual

Page: 12 / 52

12
KEY
N° C.E. S.E. Description
1 db
SS
Domestic hot water temperature
sensor
2
FLS Flow switch with cold water filter
3
VG Gas valve
4
Fd E.
ACC
/RIL
Ignition/detection electrode
5
Burner
8
Expansion vessel
10
HL TL
Safety thermostat
11 Hb
SR
Heating temperature sensor
12 Ht P Pump
13 Lp DK Water deficiency pressure switch
16 Diverter valve
17 Plate heat exchanger
18 FL
FH
VM Fan
20 Safety valve
22
rb
SRR
Return temperature sensor
23
tf
TLC
Flue gas collector safety ther
-
mostat
24
Aluminium Heat Exchanger/Ca
-
pacitor
25
Vent valve
26 Condensation drain trap
33
Ufly BOX (retractable)
34
Gateway (external links)
35
Emergency panel
Aves Connection for additional
expansion vessel
C
Domestic hot water outlet G ½
G Gas inlet G ¾
F Cold water inlet G ½
M Heating system flow G ¾
R
Heating system return G ¾
Rc Filling valve
Sc Boiler drain
Svs Safety valve drain
S
cond Condensation drain
Ufp Smoke rear output optional
C.E. = ERROR CODES see
par. 4.6
S.E. = WIRING DIAGRAM
KEY see par. 4.5