Basically, you set up fans to create a slight positive pressure inside the case. This prevents dust from being sucked in through any openings you have. As for amount of air, total airflow should be more that what is being pushed through internal coolers (ie CPU and GPU coolers). As for where to put them it really doesn't matter as there is no air convectioj inside a computer case. Even a single, crappy 50 CFM (Cubic Feet per Minute) fan will cause wind inside a case and replace all the inside air 20 time every minute (typical case is 2 Cu. Ft or less (So, 50 CFM / 2 Cu. Ft. = 25 air changes per minute).
Since Thermaltake sees it fit to give no useful fan specs you have no idea where to put those fancy fans. Return, or sell them and get some real fans.
Setting up a case for optimum cooling
Setting up the case for optimum cooling is often the hardest and most time consuming part of a build... And the most neglected by most builders.
There is much more to cooling than good cases and good CPU / GPU coolers. Add the fact that many GPU's make more heat than CPU means getting that heat out of the case and keeping a cool airflow to components can be a challenge.
Cases, especially those with filters, usually benefit from fans with higher static pressure ratings than stock fans... "cooler" fans instead of "case" fans.
Intakes are typically have more restricted than exhaust because of air filters, more restrictive grills, HDD cages, etc.
I prefer more intake than exhaust. And don't confuse number of fans with amount of airflow... or airflow with airblow
airflow is flowing cool air from intake to component and flowing hot air from component out of case without the hot air mixing with the cool air.
airblow is lots of fans blowing air with some of hot air from components mixing with cool air making it warmer resulting in warm air not cooling components as well as the cool air will.
Putting fans in case as intake and/or exhaust is only the first step. These fans only move air in and out of case.
This does not mean heated air is not mixing with cool air.
Nor does it mean cool air is going to where it is needed.
Getting the air to flow inside of case properly is even more important. We still need to manage where the air flows inside the case. We can do this several ways; deflectors, more intake fans.. & exhaust fans, removing vent grills, removing HDD cage, using fans with higher pressure/airflow, building ducts to or from CPU/GPU cooler, etc.
Using a remote temperature sensor to monitor what air temps are is the key to finding out where the cool air is flowing and knowing heated air is not mixing into it. By monitoring this we can than make changes to get airflow the way we want it.
Keep in mind your case needs to flow more air than components do. It isn't so much how many fans but how well they flow air through the case. If component fans move more air than case fans move through case components are using their own heated exhaust to make up the difference and case heats up. Good rule of thumb is 25-50% more case cfm than component cfm but well tuned airflow can be almost equal equal.
Traditional tower cooler exhausting toward back of case must have rear / rear & top back case exhaust fan that remove as much or more cfm than cooler fans exhaust.
A duct from back of cooler to back of case (like Thermalright HR-22 uses) is also an option that works very well.
For example
My Define R2 system has three TY-140 74cfm intake fans. (no exhaust fans) in case while CPU has TY-143 130cfm fan and GPU has two TY-100 44cfm fans
Case = 222cfm
Components = 218cfm
Air temp inside of case is never more than 3c above room.
2 front TY-140 & CPU cooler TY-143 fans are PWM controlled by CPU
Bottom TY-140 & GPU TY-100 fans are PWM controlled by GPU
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