What size holes do I need to drill for installing the Pro 5000 wallplate?
Drill 3/16" holes if mounting on drywall, or 7/32" holes if mounting on plaster. The manual provides specific drill size specifications to ensure proper wall anchor installation for your thermostat wallplate.
From the official Honeywell Pro 5000 Thermostat manual, page 1
Have a follow-up question?
Answers from the official manual.
Common questions