Nice video but I have a completely fried vfd (fire). The new one is 2 weeks out from the factory and I need to figure out how to get it the old instructions...
@@gtjdbydave also... if someone were so inclined to bypass the vfd with a contactor and (g) to the motor, would it be in high or low speed? From what i think the only way the vfd manipulates the blower speed is by manipulating the hertz???
@@kenmoses8 Answer is, depends on what speed the VFD normally runs the motor at. Usually a bypass will run faster. Bypassing the VFD will make the motor run at its rated speed. You MUST be very careful when installing a bypass! It MUST completely disconnect the VFD motor side connections on all three phases. Backfeeding power into the motor output WILL explode the VFD. Stuck or faulty contactors in a bypass setup are the main cause of VFD violent failures and fires.
5 star service needed that help thanks
Good job 👍
Very useful did first one today thanks sir
Nice video but I have a completely fried vfd (fire). The new one is 2 weeks out from the factory and I need to figure out how to get it the old instructions...
Check out my video on vfd programming from manual. It's not the best quality but it gets the point across
@@gtjdbydave also... if someone were so inclined to bypass the vfd with a contactor and (g) to the motor, would it be in high or low speed? From what i think the only way the vfd manipulates the blower speed is by manipulating the hertz???
@@kenmoses8 I know this is late but my HVAC supplier gave me a diagram to install a contactor to bypass VFD, I know this is late af 😂
@@kenmoses8 Answer is, depends on what speed the VFD normally runs the motor at. Usually a bypass will run faster. Bypassing the VFD will make the motor run at its rated speed.
You MUST be very careful when installing a bypass! It MUST completely disconnect the VFD motor side connections on all three phases. Backfeeding power into the motor output WILL explode the VFD. Stuck or faulty contactors in a bypass setup are the main cause of VFD violent failures and fires.