The following product guides are available for the VSX range:
Reznor Nortek Vision Sales Brochure (Jan 20) - https://www.reznor.co.uk/wp-content/uploads/2023/12/Reznor-Nortek-Vision-Sales-Brochure-Jan-20.pdf
Reznor Product Overview March 2020 - https://www.reznor.co.uk/wp-content/uploads/2023/11/Reznor-Product-Overview-Mar-20.pdf