Hey guys! In this video I show you how you can very easily bind a Pro programmable thermostat to a Honeywell BDR91 Relay as a direct replacement for a Honeywell CM721, CM727, CM921, CM927 wireless programmable thermostats.

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When my Honeywell thermostat stopped working, I bought a Pro thermostat and used this method to bind it to my existing Honeywell relay saving my $$$ on installation.

Hope this helps someone else too 🙏

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