Power surges are the silent killer for home appliances and HVAC equipment. Most homeowners protect their electronics, but leave more valued equipment unsecured. Surges can wipe out equipment and leave you searching for answers. Search no more. The easy-to-install AG3000 surge protector is the perfect add-on for HVAC equipment. It features unmatched surge protection ratings and a 3-year, $7,500 connected equipment warranty.