Introduction
This document provides detailed installation instructions for the Honeywell TH8320U and TH8321U Touch Screen Universal Programmable Thermostats. These thermostats offer electronic control for 24 Vac heating and cooling systems, as well as 750 mV heating systems.
Key Features and Installation Guidance
The guide covers essential aspects of installation, including:
- Application Overview: Understanding the thermostat's capabilities for various HVAC systems.
- Selecting the Optimal Location: Recommendations for thermostat placement to ensure accurate temperature readings and good air circulation.
- Wiring and System Setup: Step-by-step instructions for connecting the thermostat to your HVAC system, including detailed wiring diagrams for different system types (conventional, heat pump).
- Installer Setup: Guidance on configuring the thermostat through installer setup menus to match your specific system, including main, regional, and advanced settings.
- System Checkout: Procedures for testing the installed system to ensure proper operation.
- Troubleshooting: A helpful table to diagnose and resolve common issues that may arise during or after installation.
Proper installation is crucial for the optimal performance of your thermostat. Always follow the safety precautions and instructions provided.
Important Notes
- Always disconnect power to the HVAC system before beginning installation.
- Ensure all wiring complies with local electrical codes and ordinances.
- If replacing a thermostat containing mercury, follow proper disposal procedures.
- Installer must be a trained, experienced service technician.
