Is there a reason Dell makes it impossible for customers to find information without breaking the internet in the process?

I'm trying to use the Dell ESSA tool to calculate cooling requirements for the following Dell products and the site is not working.  I do not understand why a company the size of Dell does not have this information readily available on a consistent basis to their customers.  It should NOT be difficult to determine the power and cooling requirements for Dell equipment.

1 x PowerEdge R610
3 x PowerEdge R820
1 x PowerVault MD3220
1 x PowerVault TL2000

Can anybody please help me find the electrical and cooling requirements for the above items?

Thank you, John