3
MAIN COMPONENTS
A.
CH pump
B.
Gas valve
C.
Burner controller (incl. operating panel)
D.
Sensor S1 (flow)
E.
Sensor S2 (return)
F.
Fan
G.
Flow sensor
H.
Pressure sensor central heating
I.
Connection wire 230 V ~ with earthed plug
J.
Manual air bleed
K.
Sight glass
L.
Air supply (only when using twin pipe flue system)
M.
Flue gas/air inlet concentric adapter
N.
Connection block / terminal strip X4
O.
Condensate drain pan
P.
Domestic hot water sensor S3
Q.
Siphon
R.
Heat exchanger
S.
Operating panel and display
T.
Ionization / ignition pen
U.
Position of data plate
9