Dual Fan Frequency Drives on Central Duct
Dual Fan Frequency Drives on Central Duct
(OP)
I am trying to locate information on controlling two frequency drives (one on each) of two Trane Intellipak Roof Top Units. The current situation of them being seperated causes one fan to "overcome" the other, i.e.: 70% compared to 30%. What is the best way to resolve this issue - anyone with experience on this issue?
Thanks,
Kevin
Thanks,
Kevin





RE: Dual Fan Frequency Drives on Central Duct
To balance drives, a simple solution might be to just tee the two units' pressure sensing tubes together. With this done, each unit's drive will try to maintain the average pressure. -CB
RE: Dual Fan Frequency Drives on Central Duct
If Trane provided the drives, they are probably Sqaure-D drives. You might want to contact the Square-D rep. They have pretty good tech support for their drives.