Item Model/Manufacturer: Corken t91
Description: t-91
Price/MSRP: $ 5k
Current location of item: spokane wa
Estimated lead time: Days
Fulfillment: Drop shipped / Direct from seller
User support / Warranty: as is
I have used corken t-91.
It is 3phase
I have a variable frequency drive
1200$ Retail value
Also a box of various parts for maintenance and repair
Valued at 3500 retail value
i have all original invoices
A fair offer on the pump and I’ll throw the inverter and parts in for free
5k priced to move
Delivery available in Washington/Oregon/ Montana
shipping available elsewhere
Ive ran several corken t91s, this is the first time im ever seeing that outlet, i want to say it has to do with the variable frequency drive because i have never used one but thats an electronic device to regulate voltage/frequency. Which maybe needs another port/something to help regulate? Not sure but def safe to say its not for oil removal as ive seen oil changes by our hvac tech/thats a horrible place to gravity drain oil. Horrible design if so. But again i think it has to relate to the upgrade they got… would be glad to hear any comments from someone who has dealt with a corken with this extra port
