Im sorry but your comment seems backwards. If the top photo is moving air in to the case than it would be in 'Pull' position, pulling the air through the radiator. So that would mean that the supplied fan is a Pull fan. The existing exhaust fan on my case is 'Push' so I assume I wouldn't be able to use it in the format of the lower picture as it would not likely fit with the water lines on the radiator.
The top photo shows the fan in Push mode , pushing air thru the radiator, acting as a system exhaust.
The bottom photo shows the fan also in Push mode , again pushing air thru the radiator , acting as an intake this time. ( Easy to tell with that fancy fan )
Getting the idea of what push/pull on a radiator describes yet ?