Unical KUTter R 28, Installation And Servicing Manual

Page: 61 / 97

14
LEGENDA
N°
C.E. S.E. Description
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 MDV Boiler drain valve
18 FL
FH
V Diverter valve
20 Fan
21 Safety valve
22 rb SRR By-pass regolabile
23 tf TLC Return temperature sensor
24 Flue gas collector safety
thermostat
25 Aluminium Heat Exchanger/
Capacitor
26 Vent valve
35 Condensation drain trap
41 Ignition Trasformer
42 DHW sensor
43 DHW Expansion vessel 3 l.
44 Water tank 60 l.
45 DHW safety Valve 8 bar
46 Hydraulic compensator
balancing
An Anode
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
ReF Tap cold water inlet
Ri Recirculation (Optional)
Scond Condensation drain DN 32
Simp Boiler drain
Sb Drain water tank
Scoll drain manifold
Svsi Safety valve drain system
Svsb Tank safety valve drain
C.E. = ERROR CODES see
par. 4.6
S.E. = WIRING DIAGRAM
KEY see par. 4.5
(N.U) Component not used