crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

You shouldn't need any mounting screws as the side tabs lock it place.  That's why you need the special tool to remove both it and the unit that you're replacing.  Here's a video on how to install it:  https://www.youtube.com/watch?v=WZOJuQrMu8w

crwdns2915684:0crwdne2915684:0:

open