Vaillant VR 920 Operating And Installation Instructions page 92

4 Installation of the built-in version by the competent person
A
14. Route the eBUS line in the retaining box's cable duct
(A).
15. Close the electronics box's cover until you hear it click
into place.
16. Plug the plug for the eBUS cable and power supply
cable into the bush provided for it on the communica-
tion unit.
90
1
17. Check that the power supply cable has been routed
correctly in the cable duct (A) and (B).
B
18. Install the communication unit in the retaining box (A)
and push it against the retaining box's bracket until you
hear it click into place (B).
C
19. Install the boiler's front casing (A).
Operating and installation instructions 0020266269_00
A
B
A
A
B