P32-EN – Subject to technical changes 04.11
69
Technician
Appendix
11.6 Circuitry of the burner requirement
Auxiliary heating contact on boiler requires 230 V
voltage signal
:
In this case, you have to put a wire jumper between the
“L” and “T1” contacts on output 12 of the SolvisControl
mains circuit board (
figure on right
).
In addition to the safety equipment in the boiler, you can
install an additional safety temperature monitor or safety
temperature limiter at the “ST” connection.
Never use the 230 V voltage from the T2 contact
as a voltage supply for the boiler’s automatic firing
system. The safety measures in the boiler would
be by-passed and there would be no switch-off
safety in case of a malfunction.
1. Version
Auxiliary heating contact on boiler requires a floating
contact:
You must remove the wire jumper mounted on the “ST”
contact (
figure on right
). This keeps the switch contact
between the T1 and T2 contacts a sufficient distance
away from the 230 V strip conductors.
2. Version
Boiler connection with 230 V voltage signal
Boiler connection with floating contact
Modulating boiler with temperature controlled by
0-10 V interface:
The boiler connection for modulating boilers
with (0 to 10 V) can be implemented using analogue
output A15 (
see page 70
).
3. Version
Control board
REQ. Burner
Boiler or
sensor switch
module
Control board
Boiler
REQ. Burner
