Honeywell l4064b2228 – fan and limit controller the honeywell l4064b2228 fan and limit controller includes 125f fan on and 100f fan off stops, 200f high limit stop and 5 in. Insertion. For control of high limit and fan motor in all types of forced air heating systems. Features: the honeywell l4064b2228 includes three available wiring terminal options for easy installation; push-in receptacles for stripped wire, female receptacles for 1/4 in. Male flag connectors, and field add-on screw terminals. The honeywell l4064b2228 controller’s controls adapt to many competitive mounting holes in replacement applications and the l4064b2228 is available in a variety of fan and high limit setting ranges. This controller model has a manual fan switch that overrides fan control to keep fan running continuously.