Can anyone tell me what the low speed is (as % of max cfm) on the Carrier Infinity and Trane TWE/4TEE var speed air handlers. Is it 50% and 30%? Can this be adjusted lower when there is no cooling load?
The house is in a cold climate and the air handler fan will run continuously to help distribute air from the ERV (ducted to return) and also to allow some tempering if the supply temp off the ERV is too low. I would like to provide full control over the fan speed so that electricity use is minimized. Ideally I think I would like to have it go down to about 15% (100% outdoor air)