I have a Bryant condenser which needs a new 45/5 370V capacitor. I did not note down the wiring of the old one. There are 4 wires when I open the access panel hanging loose. One is a thick Blue wire. There is a Brown wire. And there are 2 yellow wires. Can you please help how to connect these wires to the new Capacitor?

The capacitor should have some markings indicating something like Fan, Hermetic, Common. The Common will probably have two terminals, while the others only one.

I'm guessing this schematic is what you need, but you might verify that the big blue wire goes to the compressor (big heavy-looking black thing towards the bottom of the unit), and that the brown wire goes to the smaller fan motor. Note that the capacitor in the diagram is labeled with H, C, and F connections. Comp means compressor, FM means Fan Motor.

Good luck. Remember to cut the power!
WallyH