<< and two switches in the same part. The other switch is for the blower, and that too closes but at 115 degC to start the fan.
>>

That sw should bring on the fan at 105c and drop the compressor at 115C
They want the fan to come on BEFORE comp gets dropped , not the other way around...that way, the fan can
come On at High Termal Load and get the temps back in check without loosing AC..if the fan can not control the rising temps at 105, then the sw tells the ac system to quit. [ 115C]. The fan gets activated at the lower temp , [ 105C] not the higher [ 115C]...