Manuals for Tekmar thermostats are available from the company's website, as of 2015. Tekmar makes all technical literature for its current products available for download on its site.
From the Tekmar home page, click on Support, then choose Product Literature. Select the type of manual you want to download, such as the installation and operation manual, the user manual or the wiring guides. In the list on the next page, find the product you are looking for, and click on the link to the PDF file in the column to the right. Depending on your browser settings, the manual either appears in your browser or is downloaded to your computer.