Once the plenum temperature drops to a stable 110°F

a different adapter kit is required

As an open on rise switch action device

This is the linkage kit only

The Robertshaw 1751-018 comes factory-set for 3

Sensus 143-62-023-46 Orifice Once the plenum temperature dropsThe 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