Thermostat Manuals Venstar T5800 Venstar T5800 List of available manuals, guides and instructions for Venstar T5800 ColorTouch high resolution digital thermostat. Owner's Manual and Installation Instructions Venstar T5800 Owner's Manual and Installation Instructions Language: English Pages: 67 Quick Start & Setup Guide Venstar T5800 Quick Start & Setup Guide Language: English Pages: 24