Complete installation instructions below:

https://www.resideo.com/us/en/pro/products/energy/fan-limit-controllers/l4064b2228-fan-and-limit-controller-5-in-insert-l4064b2228-u/#

https://www.resideo.com/us/en/pro/products/energy/fan-limit-controllers/l4064b2228-fan-and-limit-controller-5-in-insert-l4064b2228-u/

Honeywell-Resideo
Fan and Limit Control 
L4064B2228        
Honeywell Sold their fan and limit control business to Resideo. Resideo now makes this fan and limit control the item that we will ship to you is the new current residential control

https://www.resideo.com/us/en/pro/products/energy/fan-limit-controllers/l4064b2228-fan-and-limit-controller-5-in-insert-l4064b2228-u/

Other sellers on eBay are selling controls that are 20 to 30 years old and indicating they are new.
 
Of course we only sell brand new factory fresh controls with current date codes.           
   
5” Insertion depth       


           
Replaces
L4064 A & B & E & L

Product Specifications:
Description Fan and Limit Controller with 125 F fan on and 100 F fan off stops, 
200 F high limit stop

Application Forced warm air heating systems
Limit Temperature Range (F)100 F to 200 F High Limit Temperature Range (C)38 C to 121 CElement Insertion Length (in.)5in.Fan-on Range (F)65 F to 215 F Fan-on Range (C)18 C to 102 C Fan-off Range (F)50 F to 200 FFan-off Range (C)10 C to 93 C High Limit Stop (F) 200 F Fan-on Stop (F)125 FFan-off Stop (F)100 F