I don't get why you're being cryptic about what detectors you have, why you're choosing them and why EU spec units are being installed on a NA panel but to answer your post:
That's not how the schematic is showing the unit and internal EOLRs being connected.
The unit is designed for DEOL or triple EOLR.
You either need to change your wiring method and use of the internal EOLR or verify using a meter how the detector is actually behaving in relation to the internal EOLR.
How DEOLR and EU panel circuits are wired is very different from a single EOLR or NA panel.