18
KEY
L
Line
N
Neutral
SS
D.H.W. sensor (red)
SM
Heating flow sensor (blue)
LS
Insuff. water pressure warning lamp
PA
Water pressure switch
IG
Main switch
F1
Fuse (T 1.6A)
F2
Fuse (F 50mA)
TA
Room stat
E/I
Summer /Winter switch
VP
Pressure switch valve
P
Circulation pump
PVG Gas valve microswitch
A
Electric ignition
PF
Smoke pressure switch
C
Fan capacitor
V
Fan
TL
85°C limit stat
VG
Gas valve
TS
100°C safety stat
TI
Interrupted thermocouple
M
Modulator
KEY
L
Line
N
Neutral
SS
D.H.W. sensor (red)
SM Heating flow sensor (blue)
LS
Insuff. water pressure warning lamp
PA
Water pressure switch
IG
Main switch
F1
Fuse (T1,6A)
F2
Fuse (F 50 mA)
TA
Room stat
E/I
Summer/Winter switch
VP
Pressure switch valve
P
Circulation pump
A
FM11 programmer
EA
Ignition electrode (orange)
ER
Sensing electrode (white)
EV1 Gas valve coil
EV2 Gas valve coil
R
Equipment lock out reset button
PF
Smoke pressure switch
V
Fan
TL
85°C limit stat
TS
100°C safety stat
M
Modulator
FA
EMC filter
NOTE: The room stat must be connected to the terminals 40-41 of the
three-pole terminal strip after removing the link.
NOTE: The room stat must be connected to the terminals 40-41 of the
three-pole terminal strip after removing the link.
2.12.6 “MURELLE 20 BF CE” wiring diagram
2.12.7 “MURELLE 20 TX CE IONO - MURELLE 20/25 BF CE IONO” wiring diagram
Fig. 23
Fig. 24
