Appendix
29
Adapters for the drive unit
Adapter make/type Order No.
Oventrop HU 01
(knurled nut M30x1)
073341076
Herz HU 02
(knurled nut M28)
073341725
Danfoss adapter set
EVA 1-Danfoss
072031201
RAV (gray)
RAVL (black)
RA (white)
Vaillant adapter
EHA 1VAI
072031082
► Select the required adapter or change the valve lantern (Herz,
Oventrop).
► Expand the adapter, if necessary and slide it onto the valve until the
stop is reached. Turn it in the process until it latches perceptibly.
► If required, tighten the adapter with a screw or mount the adapter pin.