I had my 17 year old horizontal furnace replaced yeserday after motor went bad and bad wheel, busted bracket and motor shaft bindings were found. Technician stated the new Carrier 4 ton installed was equivalent to the old furnace which he said was also 4 ton. We'd been without A/C for several days and the house was warm (85 ish) but it took a really long time to cool down the house after being installed, and I'm concerned the new furnace isn't pushing out the A/C as strong as the old one. The old furnace was an Intercity model# GNI080A016DIN. Does anyone have info that could tell me the stats on it so I can compare and make sure we haven't swapped out less powerful furnace? Thanks.