What are the safety precautions I should follow before installing the thermostat?

Before installation, keep the thermostat at room temperature for at least 24 hours to allow condensation from shipping to evaporate. Do not open the thermostat as it contains no user-serviceable parts. The device must be installed by authorized and trained personnel in accordance with the National Electric Code. Always assume hazardous voltages may exist in wiring systems and make a safety check with a voltage detection device before starting work.