Customer says he could not hear airflow noise from old air handler. He can hear this one. It sounds normal to tech. Tech lowered blower speed from high tap 3 to medium speed tap 2. Customer can’t hear a difference. Tech changed it back to high. Customer also reported system took 2 hours to increase 2 degrees. Checked vision pro settings. Checked amp draws and refrigerant pressures from outdoor unit. Forced defrost without issues. Tech found no issues with new install.