Actually, Slow speed is used by the ducted units. I found that when a ducted unit is in heating mode and the pipe temperatures are not hot enough, it will run the fan at the configured slow speed. Once the pipe temperatures rise, it will then run the fan at low speed and then to the set fan speed. I noticed this on a B8 unit because the slow speed was causing the motor to make loud sounds, after lowering it a few steps it didn't make the sound anymore.
this was a huge time saver! thanks for taking the time to break this down
Interesting. I LOVE YOU SIR
Actually, Slow speed is used by the ducted units. I found that when a ducted unit is in heating mode and the pipe temperatures are not hot enough, it will run the fan at the configured slow speed. Once the pipe temperatures rise, it will then run the fan at low speed and then to the set fan speed. I noticed this on a B8 unit because the slow speed was causing the motor to make loud sounds, after lowering it a few steps it didn't make the sound anymore.
Thank you for sharing your experience.