This manual covers the RTH6350 and RTH6450 models. It covers the thermostat's features, programming settings, and operating instructions.
This operating manual covers the Honeywell RTH6350 and RTH6450 programmable thermostats. It introduces the device, its key features such as a large backlit display, one‑touch temperature overrides, and built‑in compressor protection, and explains the pre‑programmed settings that come with a new unit.
The guide details how to set the time and day, select fan and system modes, create and modify program schedules, replace the removable battery holder, and use quick reference cards for common tasks. It also includes warranty information and customer assistance contacts.
| Display | Large, clear, backlit |
|---|---|
| Battery holder | Removable, replace annually |
| Compressor protection | Built‑in |
Press down and pull the battery holder to remove it, then replace the batteries; they should be replaced once a year.