33
FUNCTIONAL DIAGRAM
Fig. 48
NOTE. L-N-E CONNECTION MUST NOT BE INTERCHANGED
CONTROL SWITCHING OF TIME CLOCK AND ROOM THERMOSTAT RATED IS 230 V.a.c.
Key
TRX
Fan transformer
F
Fan
P
Pump
P2
Supplementary external pump
F1
Fuse 4A F
F2
Fuse 2A F
OPE
Gas valve solenoids
S.S.E
Spark/Sense electrode
MOD
Modulator
D.H.W.F.S
Domestic hot water flow switch
D.H.W.T
Domestic hot water temperature
C.S
.
Condensate sensor
3W
3 way motor
G.V.
Gas valve
TSC1
Sparking transformer
TR1
Main transformer
O.S
Outside sensor
WPS
Water pressure sensor
FS
Flow termoster
RS
Return termoster
AE01A-P1
Master board
AE01A-P2
Ausiliary board control
M0T2B
Motor control board
AC0X
Display board
K9
Pump relay
K13
3 V1 relay
K14
3 V2 relay
K1
Not used
K7
Not used
K6
Flame sensing relay
K12
Power supply for brushless motor relay
K2
Power supply for discharge TSC1 trasformer
F.O.H.T.
FLow over heat thermostat
H.E.T.
Heat exchanger thermostat
M3-M6
Terminal strip for electrical connection hight power
M10
Terminal strip for electrical connection low power
M2
Terminal strip connection secondary pump
