The following product guides are available for the UPA range:
Ambirad UPA - Product Guide - November 2003 - https://www.reznor.co.uk/wp-content/uploads/2023/12/AmbiRad-UPA-Sales-Brochure-EN-2003-11-GB-WA-046-1103.pdf
Ambirad UPA - Product Guide - November 2004 - https://www.reznor.co.uk/wp-content/uploads/2023/12/AmbiRad-UPA-Sales-Sheet-EN-2004-11-GB-WA-051-1104.pdf
UPA - Product Guide - March 2006 - https://www.reznor.co.uk/wp-content/uploads/2023/12/Reznor-UPA-Sales-Brochure-EN-2006-03-UPAUH-GBEN-0306.pdf