Vaillant VR 920 Operating And Installation Instructions page 88

4 Installation of the built-in version by the competent person
A
2. Remove the boiler's front casing using work steps (A),
(B) and (C).
3. Hinge the boiler's electronics box down.
B
4. Open the electronics box at the points provided for this
(A).
5. Hinge the electronics box's cover open (B).
86
C
6.
B
7.
A
8.
9.
Connect the power supply plug for the communication
unit to terminal X12 on the boiler's electronics in the
electronics box.
Close the electronics box's cover until you hear it click
into place.
B
A
Connect the LAN cable to the communication unit (A).
Guide the LAN cable through the grommet provided for
it in the boiler's floor plate (B).
Operating and installation instructions 0020266269_00
X11
X18
T2
X101
X12