As an open on rise switch action device

Use a multimeter to check for continuity across the terminals when the furnace is cool

Direct Compatibility: Engineered specifically for the Johnson Controls T-4000 series horizontal thermostats

This is the linkage kit only

Environmental Protection: Hermetically sealed probe tip resists failures caused by condensation or thermal shock

Sensus 143-62-023-46 Orifice As an open on riseThe Sensus 143 62 023 46 Orifice is a critical precision engineered component for Sensus 143 80 Series domestic service regulators. Featuring a 5 8" orifice size, this aluminum component is optimized for low pressure applications, typically rated for a maximum inlet pressure of 10 PSIG. In the field, selecting the correct orifice is vital for maintaining the K Factorwhich for this 5 8" variant is approximately 820ensuring calibrated flow rates and