Johnson Controls SET29A-626R Sensing Element Freon Common Questions & Technical Support

Common Questions & Technical Support Can the Honeywell MCS-NO-A-50A be used with VFDs

For technicians diagnosing failing condensing furnace heat cells—often indicated by rollout switch trips or visible stress fractures—swapping with this genuine Rheem-Ruud furnace part is the standard for long-term reliability

this SPST (Single Pole Single Throw) switch ensures the inducer motor maintains the necessary static pressure for safe flue gas venting before ignition

The unit runs on 24 VAC

This kit is primarily the assembly and switch

Johnson Controls SET29A-626R Sensing Element Freon Common Questions & Technical SupportThe Johnson Controls SET29A 626R is a high precision replacement sensing element designed specifically for integration with 3 4" water modulating valves, such as the V47AC series. Engineered for heavy duty HVAC and industrial refrigeration applications, this element features a heating bulb configuration with a control range of 115 to 180F. As a veteran grade modulating valve part, it ensures accurate temperature sensing and fluid flow regulation in