The following wiring diagrams are available for the PVN/PVD range:
Benson PV - Wiring Diagram - March 2011 - https://www.reznor.co.uk/wp-content/uploads/2023/12/Benson-PV-Wiring-Diagrams-EN-2011-03.pdf
Benson PV - Wiring Diagram - November 2011 - https://www.reznor.co.uk/wp-content/uploads/2023/12/Benson-PV-Wiring-Diagrams-EN-2011-11-Iss-3.pdf
Benson PV - Wiring Diagram - October 2011 - https://www.reznor.co.uk/wp-content/uploads/2023/12/Benson-PV-Wiring-Diagrams-EN-2011-10-Iss-2.pdf