{"product_id":"allied-air-r40154b011-limit-control","title":"Allied Air r40154b011 Limit Control","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ALLIED AIR r40154b011 is a furnace limit control designed to monitor and regulate temperature within a residential or light-commercial heating system. Limit controls are safety devices that cut power to the burner when internal temperatures exceed a set threshold, preventing heat exchanger damage and reducing fire risk. This unit is identified by its orange and white label, which aids in quick visual identification during service. Licensed HVAC technicians install and replace limit controls as part of routine furnace maintenance and safety inspections.\u003c\/p\u003e\u003cp\u003eThis limit control is suited for forced-air gas furnace applications where an OEM-specified safety limit device is required. It is typically found in the supply air plenum or heat exchanger compartment, where it senses temperature rise and triggers a shutoff signal to the burner control circuit. This part is intended for professional installation in residential and light-commercial heating systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSafety limit function cuts burner operation when temperature exceeds the rated setpoint\u003c\/li\u003e\n\u003cli\u003eOrange and white label for fast visual identification during service calls\u003c\/li\u003e\n\u003cli\u003eOEM part number r40154b011 ensures direct fitment for applicable Allied Air systems\u003c\/li\u003e\n\u003cli\u003eDesigned for integration with standard low-voltage furnace control circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement limit control for Allied Air Enterprises forced-air gas furnace systems. Refer to your equipment service manual or Allied Air documentation to confirm fitment for your specific model before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with gas furnace safety controls. Shut off all power to the unit at the disconnect switch and turn off the gas supply before beginning any service work. The limit control is typically mounted in the plenum or on the heat exchanger panel and connects to the low-voltage control circuit. Follow all applicable local codes and manufacturer wiring diagrams when replacing this component.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Allied Air Enterprises\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type\u003c\/strong\u003e: Limit Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLabel Color\u003c\/strong\u003e: Orange and White\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: ALLIED AIR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: r40154b011\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALLIED AIR","offers":[{"title":"Default Title","offer_id":51467652530482,"sku":"R40154B011","price":79.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313945804.jpg?v=1783909454","url":"https:\/\/voomisupply.com\/products\/allied-air-r40154b011-limit-control","provider":"Voomi Supply","version":"1.0","type":"link"}