Electrical Connection - Riello 40 GS10/M Installation, Use And Maintenance Instructions

4.2 ELECTRICAL CONNECTION,

WARNING
If the boiler has a the 7 pin plug, it should be replaced with the one supplied with the burner.
WITHOUT REGULATOR
PS
– Remote manual reset
MB
– Burner terminal block
X7 – 7 pin plug
X4 – 4 pin plug
X6 – 6 pin plug
h2 – 2nd stage hourcounter
TR – High-low mode control
device system
h1 – 1st stage hourcounter
S – Remote lock-out signal
IN – Manual burner stop switch
TL
– Limit control device system
ATTENTION
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.
PS
– Remote manual reset
MB
– Burner terminal block
4 pin plug
X4 –
2622
(as set up by the installer)
WITH REGULATOR
7 pin plug
X7 –
BT Temperature probe
–
BP Pressure probe
–
(high-low progressive mode operation)
T6A – Fuse
TS
– Safety control device system
PG
– Min. gas pressure svitch
VR
– Adjustment valve
VS
– Safety valve
(fully modulating mode operation)
8 GB
D4007
20126638