IAQ Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for IAQ products.

Tip: include the full model number printed on your IAQ label for the best match.

IAQ manuals

Latest posts, featured manuals, and retailer-linked manuals for this brand tag.

Prestige IAQ Thermostat with Redlink

August 18, 2021
YTHX9421R5101WW/U YTHX9421R5127WW/U YTHX9421R5085WW/U YTHX9421R7001WW/U YTHX9421R5101WW/U THX9421R5021WW/U Guide[pdf]:  69-2811EF Interface Module [pdf]: Prestige IAQ 2.0 with Equipment Interface Module Interface Module [pdf]: Prestige IAQ with Equipment Interface Module installation Guide [pdf]: THX9321 Prestige 2.0 Why is my Prestige IAQ thermostat starting the…