Trane twin centrifugal oil amount

[Cajunmech]

I have a client in Puerto Rice that has several Trane CDHF2500KBOED chillers. The O7M manual states that a complete oil change amount is 9 gallons of Trane 22 oil. It doesn't state that there are two complete centrifugal chillers on common vessels with two refrigeration circuits. SO does this mean that the actual amount of oil is 9 divided between two oil tanks or is the total 18 gallons of oil with 9 gallons in each oil tank. Need to be sure on this for some analysis energy work we are doing on this plant.

Thanks as Always I appreciate everyone here!

[passandscore]

After looking at the manual I would assume that you will need 9 gallons per unit.