Where one is used, the other may be substituted. Relationship Of Rpm And Cfm To Motor Pulley Size To increase the rpm and cfm of the blower, the motor pulley size must be increased. This relationship ...

What do you check if an HVACR motor is failing to come up to speed or accelerate? Ask yourself the following ... If it is a belt-load system, consider using a smaller motor pulley or larger load ...