Honeywell FocusPRO TH5220D Installation Guide

Product Overview

The FocusPRO TH5220D thermostat offers electronic control for 24 VAC single-stage and multi-stage heating and cooling systems, as well as 750 mV heating systems. It supports various system configurations including gas, oil, electric heat, air conditioning, and heat pumps.

Key Features

• Supports up to 2 heat/2 cool system configurations.
• Offers selectable manual or auto-changeover modes.
• Multiple power options: battery, common wire, or common wire with battery backup.
• Includes installer setup for system configuration and testing.

Installation Tips

For optimal performance, install the thermostat approximately 5 feet (1.5 m) above the floor in an area with good air circulation and average temperature. Avoid locations with drafts, direct sunlight, or proximity to heating/cooling vents.

Wiring and Setup

The guide includes detailed wiring diagrams for conventional and heat pump systems. It also outlines the installer setup process, allowing customization of system type, changeover valve settings, fan control, and other operational parameters. A system test procedure is provided to verify correct installation and functionality.

Troubleshooting and Specifications

A troubleshooting section addresses common issues such as a blank display, temperature setting problems, and system response errors. Technical specifications, including temperature ranges, electrical ratings, and physical dimensions, are also provided.

For further assistance or to order replacement parts, please contact your Honeywell distributor.