Honeywell FocusPRO TH5220D Digital Thermostat Operating Manual

About this manual

The operating manual introduces the new Honeywell FocusPRO TH5220D thermostat, highlighting its one‑touch temperature control, large backlit display, removable battery holder, and built‑in compressor protection. It explains the basic features and how the thermostat is pre‑programmed for immediate use.

The guide includes quick‑reference sections for the control buttons and display screen, instructions for selecting fan and system settings, battery replacement procedures, and warranty information. Contact details for customer assistance are also provided.

What's inside

• About your new thermostat
• Thermostat features
• Setup at a glance
• Quick reference to controls
• Quick reference to display
• Fan setting
• System setting
• Battery replacement
• Customer assistance
• Limited warranty

Specifications

Frequently asked questions

How often should the batteries be replaced?

The batteries should be replaced once a year.

How do you select the fan setting?

Press the FAN button to select Auto or On.

What does the low battery warning indicate?

It indicates that the battery needs to be replaced.

What protection does the thermostat provide for the compressor?

It includes built‑in compressor protection.