What safety precautions should I follow when installing the e7 thermostat?

Always install the thermostat in accordance with the National Electric Code and local building codes. Use proper ESD grounding techniques when handling the device. Never install wiring during electrical storms. Keep 24VAC wiring at least six feet away from large inductive loads like power distribution panels and motors. Mount the thermostat away from windows, direct air vents, and bathroom/closet doors to ensure accurate temperature sensing. Place the unit about 5 feet from the floor on a level wall surface. (Page 2, 11)

From the official Honeywell Set Thermostat manual, page 11

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