20013756
8
GB
4.2
ELECTRICAL CONNECTION,
(as set up by the installer)
20126638
D4007
PS
–
Remote manual reset
MB
–
Burner terminal block
X7
– 7 pin plug
X4
– 4 pin plug
X6
– 6 pin plug
h2
– 2nd stage hour-counter
TR
– High-low mode control
device system
h1
– 1st stage hour-counter
S
– Remote lock-out signal
IN
–
Manual burner stop switch
TL
–
Limit control device system
WITHOUT REGULATOR
(high-low progressive mode operation)
WITH REGULATOR
(fully modulating mode operation)
PS –
Remote manual reset
MB –
Burner terminal block
X4 –
4 pin plug
T6A
– Fuse
TS
–
Safety control device system
PG
–
Min. gas pressure switch
VR
–
Adjustment valve
VS
–
Safety valve
X7 –
7 pin plug
BT –
Temperature probe
BP –
Pressure probe
Do not connect any contact
between
T6
and
T8
at the
4 pin plug and between
T1
and
T2
at the 7 pin plug, in
order to avoid interference
with the regulator.
ATTENTION
If the boiler has a the 7 pin plug, it should be replaced with the one supplied with the burner.
WARNING
