R76729900 | DOOR SWITCH | Armstrong Furnace

**DOOR SWITCH (Sku: R76729900) by Armstrong Furnace** This DOOR SWITCH from Armstrong Furnace is a vital component that plays a crucial role in ensuring the safe and efficient operation of gas furnaces. It is designed to detect when the furnace door is open or closed and automatically shuts off the gas supply when the door is opened, preventing the release of hazardous gases. This DOOR SWITCH is manufactured to meet stringent industry standards using durable materials that ensure long-lasting performance. It is designed to withstand harsh operating conditions, making it a reliable solution for use in both residential and commercial gas furnaces. **Key Features:** * Automatic gas shut-off when the furnace door opens * Durable construction for longevity * Easy installation and maintenance * Meets industry standards for safety and reliability **Applications:** * Gas furnaces * HVAC systems **Benefits:** * Enhanced safety by preventing gas leaks * Reduced maintenance costs * Peace of mind knowing your furnace is operating safely * Improved energy efficiency