wiring the cooler assembly

The thermostatic switch that is plumbed into the oil cooler (Blue switch at lower right)will turn on the fan only when it is needed. (Oil Temperatures Hot) In this case I wanted to have some feedback as to what is happening. I wired status indicators on the front of the cooler , Quick glances through the grill will tell me what is happening. The fan is a pulling fan hidden behind the cooler and is quite quiet. With the engine running it is not evident what the fan is doing but with the status indicators, its quite clear. The thermostatic switch can handle the load of the fan but I did not want to put more electrical loads through the ignition switch so I used a control relay. The temp switch  switch will only control the primary circuit of the relay.  The secondary circuit has a breaker controlled line from the battery.