T4 PRO PROGRAMMABLE THERMOSTAT Manual & Support
TH4210U2002/U, TH4110U2005/U
Download Installation Guide
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ADDITIONAL SUPPORT
Take a look at our FAQs and Support Articles below for frequently asked consumer questions and detailed technical information.
Warning! Improper wiring or commissioning of your thermostat can cause unintended operation of your HVAC system which could lead to property damage, injury, including death. If you are unsure of what type of system you have, refer to your heating/cooling system equipment literature or call an HVAC professional.
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