Final answer:
The main temperature limit safety switch is responsible for protecting a furnace from running at too high of a temperature.
Step-by-step explanation:
The main temperature limit safety switch is responsible for protecting a furnace from running at too high of a temperature. This safety switch is designed to monitor the temperature inside the furnace and shut off the system if it exceeds a certain limit. This is crucial to prevent overheating, which can lead to equipment damage or even fire hazards.
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