How do I install the wallplate for my Honeywell Pro 5000 thermostat?

First, remove the battery holder and pull the wallplate from the thermostat. Pull wires through the wire hole, then position the wallplate on the wall level and mark hole positions with a pencil. Drill 3/16" holes for drywall (or 7/32" for plaster), tap in the supplied wall anchors, place the wallplate over the anchors, and tighten the mounting screws.