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 - Vaillant VRT 350f Installation Instructions Manual

4 Installation

3. 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.

4. Secure the power supply against being switched on
again.
5. Check that there is no voltage in the boiler.
6. If necessary, open the front panel on the boiler.
7. Remove the operator control screen from the boiler for
the controller module.
8. Carefully lever the radio receiver unit from the wall-
mounting base.
Alternatives 1 / 2
9.
Conditions: Vertical plug connections with pins in the electronics box
▶ If required, remove the 3-way pin header.
▶ Carefully press the radio receiver unit into the con-
nection in the electronics box.
10
9. Alternatives 2 / 2
Conditions: Horizontal plug connections with no pins on the elec-
tronics box
1 Controller PCB
▶ Connect the 3-way pin header supplied with the con-
troller with the short ends in the 3 horizontal open-
ings on the radio receiver unit PCB.
▶ Carefully press the radio receiver unit with the pin
header connector into the connection in the electron-
ics box.
10. Switch on the power supply to the boiler.
Installation instructions VRT 350f 0020131978_00
1
2
2 3-pin header