I have a 6 year old HVAC 4.9 system, after renovating my home I added additional lines and registers to the new areas, unfortunately the velocity and air flow out of the unit is low and when it is very cold the system perfumes very poor. I would like to know if it possible to upgrade the air Handler motor (FLA 4.0 HP 1/2) to a bigger motor with higher RPM so I can increase the air flow and the pressure in the system. Unit: Inter-City Products Model NFCX4800A1 Style: FCX4800A
Note: when the heat is on temperature in the intake and return are very close, what lead me to think that the motor is not strong enough to cool the amount of BTUs coming into the unit.
Any help would be gladly appreciated.
Thanks, Omar