though upright mounting is recommended for optimal sensitivity

The Sterling HVAC 11J11R00306-002 is a high-limit safety control designed for precise thermal monitoring in gas-fired unit heaters

often replacing discontinued part numbers such as 52M44

which is the direct replacement for part SWT2004

This genuine Reznor OEM part contains the 209165 relay and comprehensive instruction sheet for field installation

Sterling HVAC 11J11R00306-001 Limit Switch 326058-756 though upright mounting is recommendedThe Sterling HVAC 11J11R00306 001 Limit Switch is a critical safety component designed for precise thermal regulation in Sterling gas unit heaters and HVAC systems. This OEM limit switch functions as a high limit safety cut out with an automatic reset capability, monitoring heat exchanger temperatures to prevent overheating and potential equipment damage. With a pre set fixed range of 150F to 190F (150 190F AUTO), this switch ensures the burners cycle