Resideo L4006E1091 High Limit Aquastat Controller M/R 130°-270°F

The Resideo L4006E1091 High Limit Aquastat is an essential safety device in heating systems keeping track of and maintaining certain temperature levels. The temperature range of this single pole, Single Throw switch type high limit aquastat is 130°F to 270°F. It also has a manual reset mechanism to protect it from overheating. The aquastat has a copper bulb in it that will reliably detect temperature changes and when the predetermined temperature limit is reached, it will activate the switch. This function is essential to prevent overheating of the heating system and to be a safety hazard.