The following wiring diagrams are available for the EVRD range:
Benson EVRD - Wiring Diagram - June 2013 - https://www.reznor.co.uk/wp-content/uploads/2023/12/Benson-EVRD-Wiring-Diagrams-EN-2013-06.pdf
What wiring diagrams are available for the EVRD?
Information on wiring diagrams for Reznor products