Electrical installation 6
0020131957_01 VRT 350 Installation instructions
13
7.
Connect the eBUS line to the terminal block of the boiler
(2)
.
6.2
Connect the controller to the boiler with a
"24V=RT terminal"
1.
Disconnect the power supply to the boiler.
2.
Disconnect the boiler from the power mains by pulling
out the mains plug or de-energising the boiler using a
partition with a contact opening of at least 3 mm.
3.
Secure the power supply to the boiler against being
switched on again.
4.
Check that there is no voltage in the boiler.
Burner
off
1
2
1 Controller terminal block
2 Boiler terminal block
5.
Check whether the bridge is installed between the 24
V=RT terminals on the PCB of the electronics box and,
if required, install the bridge between the 24 V=RT ter-
minals.
