Connect The Controller To The Boiler With A; Rt Terminal - Vaillant VRT 350 Installation Instructions Manual

7. Connect the eBUS line to the terminal block of the boiler
(2).
5.2

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.
0020131957_01 VRT 350 Installation instructions
Electrical installation 5
1
2
Burner
off
1 Controller 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.
2 Boiler terminal block
11