When we buy new device such as Honeywell RM7800E we often through away most of the documentation but the warranty.
Very often issues with Honeywell RM7800E begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Burner Honeywell RM7800E is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Burner on our side using links below.