Electrical Connection (Set Up By The Installer) - Riello BS2/M TL Manuel D'entretien

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
Key to lay-out:
PS – Remote manual reset
MB – Burner terminal block
X7 – 7 pin plug
– 4 pin plug
X4
X6 – 6 pin plug
h2 – 2nd stage hourcounter
– High-low mode control device system
TR
h1 – 1st stage hourcounter
S – Remote lock-out signal
IN – Manual burner stop switch
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.
Key to lay-out:
PS – Remote manual reset
MB
– Burner terminal block
4 pin plug
X4 –
7 pin plug
X7 –
BT Temperature probe
–
Pressure probe
BP –
3134
(As set up by the installer)
WITH REGULATOR
(high-low progressive mode operation)
TL – Limit control device system
T6A – Fuse
TS
– Safety control device system
PG – Min. gas pressure svitch
VR – Adjustment valve
VS
– Safety valve
(fully modulating mode operation)
9
GB
D4548
D7137