What is the normal temperature setting of a high-limit control?

The normal temperature setting of a high-limit control is typically around 200°F. This control is designed to prevent overheating in a heating system, ensuring that temperatures do not exceed safe operational levels. Setting it at 200°F allows for a balance between efficiency and safety, protecting both the equipment and the surrounding environment.

In heating systems, the high-limit control mechanism helps to shut down the burner or heating element when the water or fluid temperature reaches this threshold. This action helps in avoiding potential damage to the system and ensures operational safety.

The other temperature options, while they might be operational in certain specialized systems or under specific circumstances, are generally above the standard high-limit setting for most heating applications. Therefore, 200°F is widely accepted as the standard for these controls, reflecting a conservative approach to system protection and maintenance.