The following installation manuals are available for the UDSA range:
UDSA - Installation Manual - https://www.reznor.co.uk/wp-content/uploads/2023/12/V3-Installation-manual.pdf
UDSA-2 - Installation Manual - https://www.reznor.co.uk/wp-content/uploads/2023/12/2.1-UDSA-2-Technical-Manual-0709UDSA-2AMEN.pdf
UDSA-3 - Installation Manual - https://www.reznor.co.uk/wp-content/uploads/2023/12/UDSA-3-Installation-Manual-1310UDSA-3BMBCGBEN.pdf
UDSA-4 - Installation Manual - https://www.reznor.co.uk/wp-content/uploads/2023/12/UDSA-4.pdf
UDSA-4E - Installation Manual - https://www.reznor.co.uk/wp-content/uploads/2023/12/I-UDSA-UK-02-19-PN-06-00116-UDSA-R3-for-UK-low-rez.pdf