a) Download the "Honeywell Lyric" app from the App store or Google play. b) Open the Honeywell Lyric app. Your thermostat should appear under Thermostat Found. Tap SET UP NOW as shown below to continue. If your thermostat doesn't appear, tap INSTALL A DEVICE and follow the prompts to continue.. How to install a Honeywell thermostat. How to replace or install a furnace and air conditioner thermostat. There are many different HVAC thermostats out ther.
Owner s Manual Read and save these instructions. For help please visit yourhome.honeywell.com RTH2300/RTH221 Series Programmable Thermostat Identify System Type This thermostat is compatible with the following systems: • Gas, oil or electric furnace • Central air conditioner • Hot water system with or without pump • Millivolt system. In this video, I will guide you through the step-by-step process of installing a Honeywell RTH9585WF thermostat. You'll learn how to remove your old thermost.