Cooling Fans Replacement || Why Is The Drive Operating Backwards? .. Toshiba Q9 HVAC Drive
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- Опубликовано: 4 фев 2025
- Follow up work order to replace Toshiba drive cooling fans the easy way along with figuring out why the drive operates opposite of front switch position #hvac #toshiba #hvacmaintenance
That sucker was dirty....when you blew it out....i was damn....how has that drive survived this long....kudos to you. Enjoyed the video 😊
Everything at that same level was covered in dust, cleaning services must only go up to 8ft high😀
Nice work Subcool, thank you for the knowledge.
Glad you enjoyed it!
Oops, commented too early. But still, a head's up: Most drives have a parameter setting that electrically reverses the motor. It allows a lazy installer to reverse rotation without swapping motor wires. It is usually disabled by default.
An extensive power down, faulty memory keep alive supercap/battery, or power surge can toggle that parameter when the drive is powered back up. Another thing that causes that is static electricity, which could have happened when you blew the drive out in the truck.
Early versions of some Damnfussy drives were prone to that and defaulting to full factory parameters.
@@mxslick50 yep, in this case the drive operated when bypass selected on front panel and bypass when drive selected.,
Great video!
@@ccthepope Thank you for watching!
One of the main killers of VFDs
Definitely 👍
Thanks 👍
"hey where do you want the control box", ""oh I don't know put it over there up high so it doesn't get hit or smashed with anything"". 🤣🤣
🏀 yep, They play ball in there
I just find things are not serviceable anymore
It could have been more service friendly for sure
ABB > Toshiba
Agreed 👍