How do I run a system test after installation to verify everything is working?

After completing the installer setup, press the s button again to begin the system test. Set the SYSTEM switch to Heat and press t to turn on and check systems, then press t until systems turn off. Repeat with the Em Heat setting (TH3210D only) and then the Cool setting. Press and hold both t and s buttons at any time to terminate the test. (Page 7)

From the official Honeywell Pro Th3210d manual, page 7

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